Subject: Re: [Fot] Oil Pressure Conundrum

From: "Peter Vucinic" <[email-masked]>
Date: Tue, 12 Jul 2016 23:54:42 +1000

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Marty,

Sounds like some of the bearings clearances are larger than they should be
and you are losing oil pressure as the oil warms up and starts leaking
through the journal(s) faster once you are at operating temps. 

If you are running an aggressive cam profile and/or high valve spring rates?
This will adversely affect cam bearing wear for sure.

"You can Make a Small Fortune From Motor Racing. As long as You Started With
A Lage Fortune!"

Kind Regards

Peter Vucinic

TR4 - TR7 V8 - Spitfire MkII

_______________________________________________

 <http://www.fot-racing.com/> http://www.fot-racing.com

Archive:  <http://www.team.net/archive> http://www.team.net/archive

Forums:  <http://www.team.net/forums> http://www.team.net/forums

 

From: Fot [mailto:[email-masked]] On Behalf Of marty
Sent: Tuesday, 12 July 2016 4:09 AM
To: FOT
Subject: [Fot] Oil Pressure Conundrum

I could use some opinions. Some history. Spitfire small journal 1296 engine,
rebuilt 6 race weekends ago included all new bearings. I tore it down this
spring to check it over prior to last weekend PVGP event. Cam and crank end
floats were to spec. Rod and main bearings checked between .002 and .003
clearance. I do not have the actual numbers in front of me at the present.
Cam bearings appeared to have some slight visual wear at the bottoms but I
did not actually measure them. I run Brad Pen 20W50. Oil temps run 210 and
water temps run 190. EGT are 1200/1250 range on track. I was fighting low
oil pressure at running temps all weekend. Once my oil temps come up on
track the pressure drops down to 35psi. If I add enough springs to the
pressure relief valve I see over 125 psi cold so I am thinking my pump is
putting out enough pressure. I tried shimming to get 50/60 cold at idle and
it drops to 35 at operating temps at 7000 rpm. I tried a new pressure gage
over the weekend and the numbers did not change. I am currently running an
auxiliary oil line to the head, I removed it at one point over the weekend
and it had no effect. I tried a new pressure relief valve assy and it had no
effect.  I believe this situation actually started a season ago because I
added a washer to the pressure relief valve last season.  I'm thinking it
most likely is cam bearing wear even though all the bearings were fresh 6
events ago. Any guidance? One thing I did learn this weekend is my accusump
pressure gage is incorrect.  It was reading about 30 psi higher that my dash
gage. I was thinking it was probably correct and my dash gage was wrong
until I replaced my electric dash gage with a mechanical gage and its
reading matched the gage I just disconnected. Oil pressure readings are
taken at the port below the distributer. 

Side note. Car ran awesome. I ran a 2.22 at PittRace Sunday and that was 6
seconds faster than my previous best lap there. 

Thanks,

Marty 

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<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Marty,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sounds like some of the bearings clearances are larger than they =
should be and you are losing oil pressure as the oil warms up and starts =
leaking through the journal(s) faster once you are at operating temps. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>If you are running an aggressive cam profile and/or high valve spring =
rates? This will adversely affect cam bearing wear for =
sure.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><b><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#7030A=
0'>&quot;You can Make a Small Fortune From Motor Racing. As long as You =
Started With A Lage Fortune!&quot;<o:p></o:p></span></b></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Kind Regards<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Peter Vucinic<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>TR4 - TR7 V8 - Spitfire MkII<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>_______________________________________________<o:p></o:p></span></p><=
p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:#1F497D'><a =
href=3D"mailto:[email-masked]"><span =
style=3D'color:blue'>[email-masked]</span></a><o:p></o:p></span></p><=
p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:#1F497D'><o:p>&nbsp;=
</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:#1F497D'><a =
href=3D"http://www.fot-racing.com/"><span =
style=3D'color:blue'>http://www.fot-racing.com</span></a><o:p></o:p></spa=
n></p><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:#1F497D'><o:p>&nbsp;=
</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:Consolas;color:#1F497D'>Donate: <a =
href=3D"http://www.team.net/donate.html"><span =
style=3D'color:blue'>http://www.team.net/donate.html</span></a><o:p></o:p=
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style=3D'font-size:10.5pt;font-family:Consolas;color:#1F497D'>Archive: =
<a href=3D"http://www.team.net/archive"><span =
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pan></p><p class=3DMsoNormal><span =
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an></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
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D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal style=3D'margin-left:36.0pt'><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Fot [mailto:[email-masked]] <b>On Behalf Of =
</b>marty<br><b>Sent:</b> Tuesday, 12 July 2016 4:09 AM<br><b>To:</b> =
FOT<br><b>Subject:</b> [Fot] Oil Pressure =
Conundrum<o:p></o:p></span></p></div></div><p class=3DMsoNormal =
style=3D'margin-left:36.0pt'><o:p>&nbsp;</o:p></p><div><p =
class=3DMsoNormal style=3D'margin-left:36.0pt'><span =
style=3D'font-family:"Calibri","sans-serif"'>&nbsp;</span> <span =
style=3D'font-family:"Calibri","sans-serif"'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:8.0pt;marg=
in-left:36.0pt'>I could use some opinions. Some history. Spitfire small =
journal 1296 engine, rebuilt 6 race weekends ago included all new =
bearings. I tore it down this spring to check it over prior to last =
weekend PVGP event. Cam and crank end floats were to spec. Rod and main =
bearings checked between .002 and .003 clearance. I do not have the =
actual numbers in front of me at the present. Cam bearings appeared to =
have some slight visual wear at the bottoms but I did not actually =
measure them. I run Brad Pen 20W50. Oil temps run 210 and water temps =
run 190. EGT are 1200/1250 range on track. I was fighting low oil =
pressure at running temps all weekend. Once my oil temps come up on =
track the pressure drops down to 35psi. If I add enough springs to the =
pressure relief valve I see over 125 psi cold so I am thinking my pump =
is putting out enough pressure. I tried shimming to get 50/60 cold at =
idle and it drops to 35 at operating temps at 7000 rpm. I tried a new =
pressure gage over the weekend and the numbers did not change. I am =
currently running an auxiliary oil line to the head, I removed it at one =
point over the weekend and it had no effect. I tried a new pressure =
relief valve assy and it had no effect.&nbsp; I believe this situation =
actually started a season ago because I added a washer to the pressure =
relief valve last season.&nbsp; I&#8217;m thinking it most likely is cam =
bearing wear even though all the bearings were fresh 6 events ago. Any =
guidance? One thing I did learn this weekend is my accusump pressure =
gage is incorrect.&nbsp; It was reading about 30 psi higher that my dash =
gage. I was thinking it was probably correct and my dash gage was wrong =
until I replaced my electric dash gage with a mechanical gage&nbsp;and =
its reading matched the gage I just disconnected. Oil pressure readings =
are taken at the port below the distributer. <o:p></o:p></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:8.0pt;marg=
in-left:36.0pt'>&nbsp;<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:8.0pt;marg=
in-left:36.0pt'>Side note. Car ran awesome. I ran a 2.22 at PittRace =
Sunday and that was 6 seconds faster than my previous best lap there. =
<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:8.0pt;marg=
in-left:36.0pt'>&nbsp;<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:8.0pt;marg=
in-left:36.0pt'>Thanks,<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:8.0pt;marg=
in-left:36.0pt'>Marty <o:p></o:p></p></div></div></body></html>
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_______________________________________________
[email-masked]

http://www.fot-racing.com

Archive: http://www.team.net/archive

--===============1774684909308515274==--

---

From: Brian Schirano <[email-masked]>
Date: Wed, 13 Jul 2016 12:12:48 +0000 (UTC)

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Marty, I think Peter is right. The GT motor I am about to rebuild had simil=
ar symptoms. Great pressure cold, 75-80, then dropping to 20-25 hot at idle=
, sometimes less and I had to keep RPMs up to ensure lubrication. Uppon tea=
rdown, I had a a couple of big end rod bearings showing some copper, and ot=
hers indicating wear also, all on the compression stroke side (opposite sid=
e of oil journal). Mains were all OK. I run street Mobil One 15-50, but thi=
nk I will change after rebuild.
Would welcome a few race oil opinions from FOT
BestBrian

26A GT6+, 28 TR6Brian Schirano
585-305-0349 Cell=C2=A0
[email-masked]

      From: Peter Vucinic <[email-masked]>
 To: 'marty' <[email-masked]>; 'FOT' <[email-masked]>=20
 Sent: Tuesday, July 12, 2016 9:54 AM
 Subject: Re: [Fot] Oil Pressure Conundrum
  =20
#yiv0474239424 #yiv0474239424 -- _filtered #yiv0474239424 {panose-1:2 4 5 3=
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-decoration:underline;}#yiv0474239424 a:visited, #yiv0474239424 span.yiv047=
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74239424 p {margin-right:0cm;margin-left:0cm;font-size:12.0pt;}#yiv04742394=
24 span.yiv0474239424EmailStyle18 {color:#1F497D;}#yiv0474239424 .yiv047423=
9424MsoChpDefault {font-size:10.0pt;} _filtered #yiv0474239424 {margin:72.0=
pt 72.0pt 72.0pt 72.0pt;}#yiv0474239424 div.yiv0474239424WordSection1 {}#yi=
v0474239424 Marty,Sounds like some of the bearings clearances are larger th=
an they should be and you are losing oil pressure as the oil warms up and s=
tarts leaking through the journal(s) faster once you are at operating temps=
. If you are running an aggressive cam profile and/or high valve spring rat=
es? This will adversely affect cam bearing wear for sure. =C2=A0 =C2=A0"You=
 can Make a Small Fortune From Motor Racing. As long as You Started With A =
Lage Fortune!"Kind RegardsPeter VucinicTR4 - TR7 V8 - Spitfire MkII________=
[email-masked] =C2=A0http://www.=
fot-racing.com =C2=A0Donate: http://www.team.net/donate.htmlArchive: http:/=
/www.team.net/archiveForums: http://www.team.net/forums =C2=A0 =C2=A0 =C2=
=A0 =C2=A0From: Fot [mailto:[email-masked]] On Behalf Of marty
Sent: Tuesday, 12 July 2016 4:09 AM
To: FOT
Subject: [Fot] Oil Pressure Conundrum =C2=A0=C2=A0 I could use some opinion=
s. Some history. Spitfire small journal 1296 engine, rebuilt 6 race weekend=
s ago included all new bearings. I tore it down this spring to check it ove=
r prior to last weekend PVGP event. Cam and crank end floats were to spec. =
Rod and main bearings checked between .002 and .003 clearance. I do not hav=
e the actual numbers in front of me at the present. Cam bearings appeared t=
o have some slight visual wear at the bottoms but I did not actually measur=
e them. I run Brad Pen 20W50. Oil temps run 210 and water temps run 190. EG=
T are 1200/1250 range on track. I was fighting low oil pressure at running =
temps all weekend. Once my oil temps come up on track the pressure drops do=
wn to 35psi. If I add enough springs to the pressure relief valve I see ove=
r 125 psi cold so I am thinking my pump is putting out enough pressure. I t=
ried shimming to get 50/60 cold at idle and it drops to 35 at operating tem=
ps at 7000 rpm. I tried a new pressure gage over the weekend and the number=
s did not change. I am currently running an auxiliary oil line to the head,=
 I removed it at one point over the weekend and it had no effect. I tried a=
 new pressure relief valve assy and it had no effect.=C2=A0 I believe this =
situation actually started a season ago because I added a washer to the pre=
ssure relief valve last season.=C2=A0 I=E2=80=99m thinking it most likely i=
s cam bearing wear even though all the bearings were fresh 6 events ago. An=
y guidance? One thing I did learn this weekend is my accusump pressure gage=
 is incorrect.=C2=A0 It was reading about 30 psi higher that my dash gage. =
I was thinking it was probably correct and my dash gage was wrong until I r=
eplaced my electric dash gage with a mechanical gage=C2=A0and its reading m=
atched the gage I just disconnected. Oil pressure readings are taken at the=
 port below the distributer. =C2=A0Side note. Car ran awesome. I ran a 2.22=
 at PittRace Sunday and that was 6 seconds faster than my previous best lap=
 there. =C2=A0Thanks,Marty=20
_______________________________________________
[email-masked]

oo.com

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<html><head></head><body><div style=3D"color:#000; background-color:#fff; f=
ont-family:times new roman, new york, times, serif;font-size:16px"><div dir=
=3D"ltr" id=3D"yui_3_16_0_1_1468327401121_163568"><span id=3D"yui_3_16_0_1_=
1468327401121_163255">Marty, I think Peter is right. The GT motor I am abou=
t to rebuild had similar symptoms. Great pressure cold, 75-80, then droppin=
g to 20-25 hot at idle, sometimes less and I had to keep RPMs up to ensure =
lubrication. Uppon teardown, I had a a couple of big end rod bearings showi=
ng some copper, and others indicating wear also, all on the compression str=
oke side (opposite side of oil journal). Mains were all OK. I run street Mo=
bil One 15-50, but think I will change after rebuild.</span></div><div id=
=3D"yui_3_16_0_1_1468327401121_163838" dir=3D"ltr"><span id=3D"yui_3_16_0_1=
_1468327401121_163255"><br></span></div><div dir=3D"ltr"><span id=3D"yui_3_=
16_0_1_1468327401121_163255">Would welcome a few race oil opinions from FOT=
</span></div><div id=3D"yui_3_16_0_1_1468327401121_163248" class=3D"signatu=
re"><div id=3D"yui_3_16_0_1_1468327401121_163249"><div id=3D"yui_3_16_0_1_1=
468327401121_163374"><br></div><div id=3D"yui_3_16_0_1_1468327401121_163739=
">Best</div><div id=3D"yui_3_16_0_1_1468327401121_163760">Brian<br></div><d=
iv id=3D"yui_3_16_0_1_1468327401121_163376"><br></div><div id=3D"yui_3_16_0=
_1_1468327401121_163378">26A GT6+, 28 TR6</div></div>Brian Schirano<br>585-=
305-0349 Cell&nbsp;<br>[email-masked]</div><div id=3D"yui_3_16_0_1_146=
8327401121_163346" class=3D"qtdSeparateBR"><br><br></div><div style=3D"disp=
lay: block;" id=3D"yui_3_16_0_1_1468327401121_163352" class=3D"yahoo_quoted=
">  <div id=3D"yui_3_16_0_1_1468327401121_163351" style=3D"font-family: tim=
es new roman, new york, times, serif; font-size: 16px;"> <div id=3D"yui_3_1=
6_0_1_1468327401121_163350" style=3D"font-family: HelveticaNeue, Helvetica =
Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div =
id=3D"yui_3_16_0_1_1468327401121_163349" dir=3D"ltr"> <font id=3D"yui_3_16_=
0_1_1468327401121_163348" face=3D"Arial" size=3D"2"> <hr id=3D"yui_3_16_0_1=
_1468327401121_163347" size=3D"1"> <b><span style=3D"font-weight:bold;">Fro=
m:</span></b> Peter Vucinic &lt;[email-masked]&gt;<br> <b><span s=
tyle=3D"font-weight: bold;">To:</span></b> 'marty' &lt;[email-masked]&=
gt;; 'FOT' &lt;[email-masked]&gt; <br> <b><span style=3D"font-weight: b=
old;">Sent:</span></b> Tuesday, July 12, 2016 9:54 AM<br> <b><span style=3D=
"font-weight: bold;">Subject:</span></b> Re: [Fot] Oil Pressure Conundrum<b=
r> </font> </div> <div class=3D"y_msg_container"><br><div id=3D"yiv04742394=
24"><style>#yiv0474239424 #yiv0474239424 --
=20
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#yiv0474239424 </style><div><div class=3D"yiv0474239424WordSection1"><div c=
lass=3D"yiv0474239424MsoNormal"><span style=3D"font-size:11.0pt;">Marty,</s=
pan></div><div class=3D"yiv0474239424MsoNormal"><span style=3D"font-size:11=
.0pt;">Sounds like some of the bearings clearances are larger than they sho=
uld be and you are losing oil pressure as the oil warms up and starts leaki=
ng through the journal(s) faster once you are at operating temps. </span></=
div><div class=3D"yiv0474239424MsoNormal"><span style=3D"font-size:11.0pt;"=
>If you are running an aggressive cam profile and/or high valve spring rate=
s? This will adversely affect cam bearing wear for sure.</span></div><div c=
lass=3D"yiv0474239424MsoNormal"><span style=3D"font-size:11.0pt;"> &nbsp;</=
span></div><div class=3D"yiv0474239424MsoNormal"><span style=3D"font-size:1=
1.0pt;"> &nbsp;</span></div><div class=3D"yiv0474239424MsoNormal"><b><span =
style=3D"font-size:11.0pt;">"You can Make a Small Fortune From Motor Racing=
. As long as You Started With A Lage Fortune!"</span></b></div><div class=
=3D"yiv0474239424MsoNormal"><span style=3D"font-size:11.0pt;">Kind Regards<=
/span></div><div class=3D"yiv0474239424MsoNormal"><span style=3D"font-size:=
11.0pt;">Peter Vucinic</span></div><div class=3D"yiv0474239424MsoNormal"><s=
pan style=3D"font-size:11.0pt;">TR4 - TR7 V8 - Spitfire MkII</span></div><d=
iv class=3D"yiv0474239424MsoNormal"><span style=3D"font-size:11.0pt;">_____=
__________________________________________</span></div><div class=3D"yiv047=
4239424MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas;colo=
r:#1F497D;"><a rel=3D"nofollow" shape=3D"rect" ymailto=3D"mailto:fot@autox.=
team.net" target=3D"_blank" href=3D"mailto:[email-masked]"><span style=
=3D"color:blue;">[email-masked]</span></a></span></div><div class=3D"yi=
v0474239424MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas;=
color:#1F497D;"> &nbsp;</span></div><div class=3D"yiv0474239424MsoNormal"><=
span style=3D"font-size:10.5pt;font-family:Consolas;color:#1F497D;"><a rel=
=3D"nofollow" shape=3D"rect" target=3D"_blank" href=3D"http://www.fot-racin=
g.com/"><span style=3D"color:blue;">http://www.fot-racing.com</span></a></s=
pan></div><div class=3D"yiv0474239424MsoNormal"><span style=3D"font-size:10=
.5pt;font-family:Consolas;color:#1F497D;"> &nbsp;</span></div><div class=3D=
"yiv0474239424MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consol=
as;color:#1F497D;">Donate: <a rel=3D"nofollow" shape=3D"rect" target=3D"_bl=
ank" href=3D"http://www.team.net/donate.html"><span style=3D"color:blue;">h=
ttp://www.team.net/donate.html</span></a></span></div><div class=3D"yiv0474=
239424MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas;color=
:#1F497D;">Archive: <a rel=3D"nofollow" shape=3D"rect" target=3D"_blank" hr=
ef=3D"http://www.team.net/archive"><span style=3D"color:blue;">http://www.t=
eam.net/archive</span></a></span></div><div class=3D"yiv0474239424MsoNormal=
"><span style=3D"font-size:10.5pt;font-family:Consolas;color:#1F497D;">Foru=
ms: <a rel=3D"nofollow" shape=3D"rect" target=3D"_blank" href=3D"http://www=
.team.net/forums"><span style=3D"color:blue;">http://www.team.net/forums</s=
pan></a></span></div><div class=3D"yiv0474239424MsoNormal"><span style=3D"f=
ont-size:11.0pt;"> &nbsp;</span></div><div class=3D"yiv0474239424MsoNormal"=
><span style=3D"font-size:11.0pt;"> &nbsp;</span></div><div class=3D"yiv047=
4239424MsoNormal"><span style=3D"font-size:11.0pt;"> &nbsp;</span></div><di=
v class=3D"yiv0474239424MsoNormal"><span style=3D"font-size:11.0pt;"> &nbsp=
;</span></div><div class=3D"yiv0474239424yqt6998646359" id=3D"yiv0474239424=
yqt20896"><div><div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;pad=
ding:3.0pt 0cm 0cm 0cm;"><div class=3D"yiv0474239424MsoNormal" style=3D"mar=
gin-left:36.0pt;"><b><span style=3D"font-size:10.0pt;">From:</span></b><spa=
n style=3D"font-size:10.0pt;"> Fot [mailto:[email-masked]] <b>O=
n Behalf Of </b>marty<br clear=3D"none"><b>Sent:</b> Tuesday, 12 July 2016 =
4:09 AM<br clear=3D"none"><b>To:</b> FOT<br clear=3D"none"><b>Subject:</b> =
[Fot] Oil Pressure Conundrum</span></div></div></div><div class=3D"yiv04742=
39424MsoNormal" style=3D"margin-left:36.0pt;"> &nbsp;</div><div><div class=
=3D"yiv0474239424MsoNormal" style=3D"margin-left:36.0pt;"><span style=3D"">=
&nbsp;</span> <span style=3D""></span></div><div class=3D"yiv0474239424MsoN=
ormal" style=3D"margin-right:0cm;margin-bottom:8.0pt;margin-left:36.0pt;">I=
 could use some opinions. Some history. Spitfire small journal 1296 engine,=
 rebuilt 6 race weekends ago included all new bearings. I tore it down this=
 spring to check it over prior to last weekend PVGP event. Cam and crank en=
d floats were to spec. Rod and main bearings checked between .002 and .003 =
clearance. I do not have the actual numbers in front of me at the present. =
Cam bearings appeared to have some slight visual wear at the bottoms but I =
did not actually measure them. I run Brad Pen 20W50. Oil temps run 210 and =
water temps run 190. EGT are 1200/1250 range on track. I was fighting low o=
il pressure at running temps all weekend. Once my oil temps come up on trac=
k the pressure drops down to 35psi. If I add enough springs to the pressure=
 relief valve I see over 125 psi cold so I am thinking my pump is putting o=
ut enough pressure. I tried shimming to get 50/60 cold at idle and it drops=
 to 35 at operating temps at 7000 rpm. I tried a new pressure gage over the=
 weekend and the numbers did not change. I am currently running an auxiliar=
y oil line to the head, I removed it at one point over the weekend and it h=
ad no effect. I tried a new pressure relief valve assy and it had no effect=
.&nbsp; I believe this situation actually started a season ago because I ad=
ded a washer to the pressure relief valve last season.&nbsp; I=E2=80=99m th=
inking it most likely is cam bearing wear even though all the bearings were=
 fresh 6 events ago. Any guidance? One thing I did learn this weekend is my=
 accusump pressure gage is incorrect.&nbsp; It was reading about 30 psi hig=
her that my dash gage. I was thinking it was probably correct and my dash g=
age was wrong until I replaced my electric dash gage with a mechanical gage=
&nbsp;and its reading matched the gage I just disconnected. Oil pressure re=
adings are taken at the port below the distributer. </div><div class=3D"yiv=
0474239424MsoNormal" style=3D"margin-right:0cm;margin-bottom:8.0pt;margin-l=
eft:36.0pt;">&nbsp;</div><div class=3D"yiv0474239424MsoNormal" style=3D"mar=
gin-right:0cm;margin-bottom:8.0pt;margin-left:36.0pt;">Side note. Car ran a=
wesome. I ran a 2.22 at PittRace Sunday and that was 6 seconds faster than =
my previous best lap there. </div><div class=3D"yiv0474239424MsoNormal" sty=
le=3D"margin-right:0cm;margin-bottom:8.0pt;margin-left:36.0pt;">&nbsp;</div=
><div class=3D"yiv0474239424MsoNormal" style=3D"margin-right:0cm;margin-bot=
tom:8.0pt;margin-left:36.0pt;">Thanks,</div><div class=3D"yiv0474239424MsoN=
ormal" style=3D"margin-right:0cm;margin-bottom:8.0pt;margin-left:36.0pt;">M=
arty </div></div></div></div></div></div><br><div class=3D"yqt6998646359" i=
d=3D"yqt08447">_______________________________________________<br clear=3D"=
none"><a shape=3D"rect" ymailto=3D"mailto:[email-masked]" href=3D"mailt=
o:[email-masked]">[email-masked]</a><br clear=3D"none"><br clear=3D=
"none"><a shape=3D"rect" href=3D"http://www.fot-racing.com/" target=3D"_bla=
nk">http://www.fot-racing.com</a><br clear=3D"none"><br clear=3D"none">Dona=
te: <a shape=3D"rect" href=3D"http://www.team.net/donate.html" target=3D"_b=
lank">http://www.team.net/donate.html</a><br clear=3D"none">Archive: <a sha=
pe=3D"rect" href=3D"http://www.team.net/archive" target=3D"_blank">http://w=
ww.team.net/archive</a><br clear=3D"none">Forums: <a shape=3D"rect" href=3D=
"http://www.team.net/forums" target=3D"_blank">http://www.team.net/forums</=
a><br clear=3D"none">Unsubscribe/Manage: <a shape=3D"rect" href=3D"http://a=
utox.team.net/mailman/options/fot/[email-masked]" target=3D"_blank">ht=
tp://autox.team.net/mailman/options/fot/[email-masked]</a><br clear=3D=
"none"><br clear=3D"none"><br clear=3D"none"></div><br><br></div> </div> </=
div>  </div></div></body></html>
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From: Tony Drews <[email-masked]>
Date: Wed, 13 Jul 2016 19:02:48 -0500

--===============2497447151595078376==
Content-Transfer-Encoding: quoted-printable

<html>
<body>
Good race oils:<br>
economical - Valvoline VR-1 and VR-1 synthetic (I run non-synthetic for
break-in and synthetic afterwards)<br>
Known good quantities:<br>
Brad Penn<br>
Redline<br><br>
All of those have enough ZDDP to keep our cams / lifters intact.<br><br>
Regards, Tony Drews<br><br>
At 07:12 AM 7/13/2016, Brian Schirano wrote:<br>
<blockquote type=3Dcite class=3Dcite cite=3D"">Marty, I think Peter is right=
.
The GT motor I am about to rebuild had similar symptoms. Great pressure
cold, 75-80, then dropping to 20-25 hot at idle, sometimes less and I had
to keep RPMs up to ensure lubrication. Uppon teardown, I had a a couple
of big end rod bearings showing some copper, and others indicating wear
also, all on the compression stroke side (opposite side of oil journal).
Mains were all OK. I run street Mobil One 15-50, but think I will change
after rebuild.<br><br>
Would welcome a few race oil opinions from FOT<br><br>
Best<br>
Brian<br><br>
26A GT6+, 28 TR6<br>
Brian Schirano<br>
585-305-0349 Cell <br>
[email-masked]<br><br>
<br>
<br>
<font size=3D2><b>From:</b> Peter Vucinic
&lt;[email-masked]&gt;<br>
<b>To:</b> 'marty' &lt;[email-masked]&gt;; 'FOT'
&lt;[email-masked]&gt; <br>
<b>Sent:</b> Tuesday, July 12, 2016 9:54 AM<br>
<b>Subject:</b> Re: [Fot] Oil Pressure Conundrum<br>
</font><br>
Marty,<br>
Sounds like some of the bearings clearances are larger than they should
be and you are losing oil pressure as the oil warms up and starts leaking
through the journal(s) faster once you are at operating temps. <br>
If you are running an aggressive cam profile and/or high valve spring
rates? This will adversely affect cam bearing wear for sure.<br>
&nbsp;<br>
&nbsp;<br>
<b>&quot;You can Make a Small Fortune From Motor Racing. As long as You
Started With A Lage Fortune!&quot;<br>
</b>Kind Regards<br>
Peter Vucinic<br>
TR4 - TR7 V8 - Spitfire MkII<br>
_______________________________________________<br>
<a href=3D"mailto:[email-masked]">[email-masked]</a><br>
&nbsp;<br>
<a href=3D"http://www.fot-racing.com/" eudora=3D"autourl">
http://www.fot-racing.com</a><br>
&nbsp;<br>
Donate:
<a href=3D"http://www.team.net/donate.html">
Archive:
<a href=3D"http://www.team.net/archive">http://www.team.net/archive</a><br>
Forums:
<a href=3D"http://www.team.net/forums">http://www.team.net/forums</a><br>
&nbsp;<br>
&nbsp;<br>
&nbsp;<br>
&nbsp;<br>
<b>From:</b> Fot
[<a href=3D"mailto:[email-masked]" eudora=3D"autourl">
mailto:[email-masked]</a>] <b>On Behalf Of </b>marty<br>
<b>Sent:</b> Tuesday, 12 July 2016 4:09 AM<br>
<b>To:</b> FOT<br>
<b>Subject:</b> [Fot] Oil Pressure Conundrum<br>
&nbsp;<br>
&nbsp; <br>
I could use some opinions. Some history. Spitfire small journal 1296
engine, rebuilt 6 race weekends ago included all new bearings. I tore it
down this spring to check it over prior to last weekend PVGP event. Cam
and crank end floats were to spec. Rod and main bearings checked between
.002 and .003 clearance. I do not have the actual numbers in front of me
at the present. Cam bearings appeared to have some slight visual wear at
the bottoms but I did not actually measure them. I run Brad Pen 20W50.
Oil temps run 210 and water temps run 190. EGT are 1200/1250 range on
track. I was fighting low oil pressure at running temps all weekend. Once
my oil temps come up on track the pressure drops down to 35psi. If I add
enough springs to the pressure relief valve I see over 125 psi cold so I
am thinking my pump is putting out enough pressure. I tried shimming to
get 50/60 cold at idle and it drops to 35 at operating temps at 7000 rpm.
I tried a new pressure gage over the weekend and the numbers did not
change. I am currently running an auxiliary oil line to the head, I
removed it at one point over the weekend and it had no effect. I tried a
new pressure relief valve assy and it had no effect.&nbsp; I believe this
situation actually started a season ago because I added a washer to the
pressure relief valve last season.&nbsp; I=E2=80=99m thinking it most likely=
 is
cam bearing wear even though all the bearings were fresh 6 events ago.
Any guidance? One thing I did learn this weekend is my accusump pressure
gage is incorrect.&nbsp; It was reading about 30 psi higher that my dash
gage. I was thinking it was probably correct and my dash gage was wrong
until I replaced my electric dash gage with a mechanical gage and its
reading matched the gage I just disconnected. Oil pressure readings are
taken at the port below the distributer. <br>
&nbsp;<br>
Side note. Car ran awesome. I ran a 2.22 at PittRace Sunday and that was
6 seconds faster than my previous best lap there. <br>
&nbsp;<br>
Thanks,<br>
Marty <br><br>
_______________________________________________<br>
<a href=3D"mailto:[email-masked]">[email-masked]</a><br><br>
<a href=3D"http://www.fot-racing.com/" eudora=3D"autourl">
http://www.fot-racing.com</a><br><br>
Donate:
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http://autox.team.net/mailman/options/fot/[email-masked]</a><br><br>
<br><br>
<br>
_______________________________________________<br>
[email-masked]<br><br>
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http://www.fot-racing.com</a><br><br>
Donate:
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ora=3D"autourl">
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</blockquote></body>
<br>
</html>

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From: "Jerry Van Vlack" <[email-masked]>
Date: Thu, 14 Jul 2016 05:56:23 -0400

--===============7916154134604108574==
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Marty, I experienced low to no oil  pressure at idle on my 4A street car =
several years ago, and what fixed it for me was new rod bearings and =
mostly I think was a close inspection of the oil pump and maintaining =
those clearances. So new rotor assembly and a careful removal of all of =
the scratches and worn areas of the bottom plate on the pump where the =
rotors set. Emery paper and a flat piece of glass and a lot of hand work =
getting it flat. I am assuming the oil pump is similar to a 4a pump in =
it=E2=80=99s construction. Many highway miles later hot idle is 30 or =
above and at 3000 rpm it=E2=80=99s been a steady 65 to 70 pounds. Maybe =
look there if you haven't already done so.

JVV

From: Brian Schirano=20
Sent: Wednesday, July 13, 2016 8:12 AM
To: 'marty' ; FOT List=20
Subject: Re: [Fot] Oil Pressure Conundrum

Marty, I think Peter is right. The GT motor I am about to rebuild had =
similar symptoms. Great pressure cold, 75-80, then dropping to 20-25 hot =
at idle, sometimes less and I had to keep RPMs up to ensure lubrication. =
Uppon teardown, I had a a couple of big end rod bearings showing some =
copper, and others indicating wear also, all on the compression stroke =
side (opposite side of oil journal). Mains were all OK. I run street =
Mobil One 15-50, but think I will change after rebuild.

Best
Brian

26A GT6+, 28 TR6
Brian Schirano
585-305-0349 Cell=20
[email-masked]

-------------------------------------------------------------------------=
-------

Marty,
Sounds like some of the bearings clearances are larger than they should =
be and you are losing oil pressure as the oil warms up and starts =
leaking through the journal(s) faster once you are at operating temps.=20
If you are running an aggressive cam profile and/or high valve spring =
rates? This will adversely affect cam bearing wear for sure.

"You can Make a Small Fortune From Motor Racing. As long as You Started =
With A Lage Fortune!"
Kind Regards
Peter Vucinic
TR4 - TR7 V8 - Spitfire MkII
_______________________________________________
[email-masked]

 =20
I could use some opinions. Some history. Spitfire small journal 1296 =
engine, rebuilt 6 race weekends ago included all new bearings. I tore it =
down this spring to check it over prior to last weekend PVGP event. Cam =
and crank end floats were to spec. Rod and main bearings checked between =
.002 and .003 clearance. I do not have the actual numbers in front of me =
at the present. Cam bearings appeared to have some slight visual wear at =
the bottoms but I did not actually measure them. I run Brad Pen 20W50. =
Oil temps run 210 and water temps run 190. EGT are 1200/1250 range on =
track. I was fighting low oil pressure at running temps all weekend. =
Once my oil temps come up on track the pressure drops down to 35psi. If =
I add enough springs to the pressure relief valve I see over 125 psi =
cold so I am thinking my pump is putting out enough pressure. I tried =
shimming to get 50/60 cold at idle and it drops to 35 at operating temps =
at 7000 rpm. I tried a new pressure gage over the weekend and the =
numbers did not change. I am currently running an auxiliary oil line to =
the head, I removed it at one point over the weekend and it had no =
effect. I tried a new pressure relief valve assy and it had no effect.  =
I believe this situation actually started a season ago because I added a =
washer to the pressure relief valve last season.  I=E2=80=99m thinking =
it most likely is cam bearing wear even though all the bearings were =
fresh 6 events ago. Any guidance? One thing I did learn this weekend is =
my accusump pressure gage is incorrect.  It was reading about 30 psi =
higher that my dash gage. I was thinking it was probably correct and my =
dash gage was wrong until I replaced my electric dash gage with a =
mechanical gage and its reading matched the gage I just disconnected. =
Oil pressure readings are taken at the port below the distributer.=20

Side note. Car ran awesome. I ran a 2.22 at PittRace Sunday and that was =
6 seconds faster than my previous best lap there.=20

Thanks,
Marty=20

Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/fot/[email-masked]

-------------------------------------------------------------------------=
-------
_______________________________________________
[email-masked]

Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/fot/[email-masked]

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<HTML><HEAD></HEAD>
<BODY dir=3Dltr>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Arial'; COLOR: #000000">
<DIV>Marty, I experienced low to no oil&nbsp; pressure at idle on my 4A =
street=20
car several years ago, and what fixed it for me was new rod bearings and =
mostly=20
I think was a close inspection of the oil pump and maintaining those =
clearances.=20
So new rotor assembly and a careful removal of all of the scratches and =
worn=20
areas of the bottom plate on the pump where the rotors set. Emery paper =
and a=20
flat piece of glass and a lot of hand work getting it flat. I am =
assuming the=20
oil pump is similar to a 4a pump in it=E2=80=99s construction. Many =
highway miles later=20
hot idle is 30 or above and at 3000 rpm it=E2=80=99s been a steady 65 to =
70 pounds.=20
Maybe look there if you haven't already done so.</DIV>
<DIV>&nbsp;</DIV>
<DIV>JVV</DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV>&nbsp;</DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A =
title=[email-masked]=20
href=3D"mailto:[email-masked]">Brian Schirano</A> </DIV>
<DIV><B>Sent:</B> Wednesday, July 13, 2016 8:12 AM</DIV>
<DIV><B>To:</B> <A title=[email-masked]=20
href=3D"mailto:[email-masked]">'marty'</A> ; <A =
title=[email-masked]=20
href=3D"mailto:[email-masked]">FOT List</A> </DIV>
<DIV><B>Subject:</B> Re: [Fot] Oil Pressure Conundrum</DIV></DIV></DIV>
<DIV>&nbsp;</DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV=20
style=3D"FONT-SIZE: 16px; FONT-FAMILY: times new roman, new york, times, =
serif; COLOR: #000; BACKGROUND-COLOR: #fff">
<DIV id=3Dyui_3_16_0_1_1468327401121_163568 dir=3Dltr><SPAN=20
id=3Dyui_3_16_0_1_1468327401121_163255>Marty, I think Peter is right. =
The GT motor=20
I am about to rebuild had similar symptoms. Great pressure cold, 75-80, =
then=20
dropping to 20-25 hot at idle, sometimes less and I had to keep RPMs up =
to=20
ensure lubrication. Uppon teardown, I had a a couple of big end rod =
bearings=20
showing some copper, and others indicating wear also, all on the =
compression=20
stroke side (opposite side of oil journal). Mains were all OK. I run =
street=20
Mobil One 15-50, but think I will change after rebuild.</SPAN></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163838 dir=3Dltr><SPAN=20
id=3Dyui_3_16_0_1_1468327401121_163255><BR></SPAN></DIV>
<DIV dir=3Dltr><SPAN id=3Dyui_3_16_0_1_1468327401121_163255>Would =
welcome a few race=20
oil opinions from FOT</SPAN></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163248 class=3Dsignature>
<DIV id=3Dyui_3_16_0_1_1468327401121_163249>
<DIV id=3Dyui_3_16_0_1_1468327401121_163374>&nbsp;</DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163739>Best</DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163760>Brian<BR></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163376>&nbsp;</DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163378>26A GT6+, 28 =
TR6</DIV></DIV>Brian=20
Schirano<BR>585-305-0349 Cell <BR>[email-masked]</DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163346 =
class=3DqtdSeparateBR><BR><BR></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163352 class=3Dyahoo_quoted=20
style=3D"DISPLAY: block">
<DIV id=3Dyui_3_16_0_1_1468327401121_163351=20
style=3D"FONT-SIZE: 16px; FONT-FAMILY: times new roman, new york, times, =
serif">
<DIV id=3Dyui_3_16_0_1_1468327401121_163350=20
style=3D"FONT-SIZE: 16px; FONT-FAMILY: helveticaneue, helvetica neue, =
helvetica, arial, lucida grande, sans-serif">
<DIV id=3Dyui_3_16_0_1_1468327401121_163349 dir=3Dltr><FONT=20
id=3Dyui_3_16_0_1_1468327401121_163348 size=3D2 face=3DArial>
<HR id=3Dyui_3_16_0_1_1468327401121_163347 SIZE=3D1>
<B><SPAN style=3D"FONT-WEIGHT: bold">From:</SPAN></B> Peter Vucinic=20
&lt;[email-masked]&gt;<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">To:</SPAN></B> 'marty' =
&lt;[email-masked]&gt;;=20
'FOT' &lt;[email-masked]&gt; <BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, July 12, 2016 9:54 =

AM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [Fot] =
Oil=20
Pressure Conundrum<BR></FONT></DIV>
<DIV class=3Dy_msg_container>
<DIV>&nbsp;</DIV>
<DIV id=3Dyiv0474239424>
<STYLE>#yiv0474239424 #yiv0474239424 --
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<DIV>
<DIV class=3Dyiv0474239424WordSection1>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt">Marty,</SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN style=3D"FONT-SIZE: =
11pt">Sounds like some=20
of the bearings clearances are larger than they should be and you are =
losing oil=20
pressure as the oil warms up and starts leaking through the journal(s) =
faster=20
once you are at operating temps. </SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN style=3D"FONT-SIZE: 11pt">If =
you are=20
running an aggressive cam profile and/or high valve spring rates? This =
will=20
adversely affect cam bearing wear for sure.</SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt"></SPAN>&nbsp;</DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt"></SPAN>&nbsp;</DIV>
<DIV class=3Dyiv0474239424MsoNormal><B><SPAN style=3D"FONT-SIZE: =
11pt">"You can Make=20
a Small Fortune From Motor Racing. As long as You Started With A Lage=20
Fortune!"</SPAN></B></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN style=3D"FONT-SIZE: 11pt">Kind =

Regards</SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN style=3D"FONT-SIZE: =
11pt">Peter=20
Vucinic</SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN style=3D"FONT-SIZE: 11pt">TR4 =
- TR7 V8 -=20
Spitfire MkII</SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: =
11pt">_______________________________________________</SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: #1f497d"><A=20
href=3D"mailto:[email-masked]" shape=3Drect rel=3Dnofollow =
target=3D_blank=20
ymailto=3D"mailto:[email-masked]"><SPAN=20
style=3D"COLOR: blue">[email-masked]</SPAN></A></SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: =
#1f497d"></SPAN>&nbsp;</DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: #1f497d"><A=20
href=3D"http://www.fot-racing.com/" shape=3Drect rel=3Dnofollow =
target=3D_blank><SPAN=20
style=3D"COLOR: blue">http://www.fot-racing.com</SPAN></A></SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: =
#1f497d"></SPAN>&nbsp;</DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: =
#1f497d">Donate: <A=20
href=3D"http://www.team.net/donate.html" shape=3Drect rel=3Dnofollow=20
target=3D_blank><SPAN=20
style=3D"COLOR: =
blue">http://www.team.net/donate.html</SPAN></A></SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: =
#1f497d">Archive: <A=20
href=3D"http://www.team.net/archive" shape=3Drect rel=3Dnofollow =
target=3D_blank><SPAN=20
style=3D"COLOR: =
blue">http://www.team.net/archive</SPAN></A></SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: =
#1f497d">Forums: <A=20
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<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt"></SPAN>&nbsp;</DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt"></SPAN>&nbsp;</DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt"></SPAN>&nbsp;</DIV>
<DIV class=3Dyiv0474239424MsoNormal><SPAN=20
style=3D"FONT-SIZE: 11pt"></SPAN>&nbsp;</DIV>
<DIV id=3Dyiv0474239424yqt20896 class=3Dyiv0474239424yqt6998646359>
<DIV>
<DIV=20
style=3D"BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; =
BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0cm; PADDING-TOP: 3pt; =
PADDING-LEFT: 0cm; BORDER-LEFT: medium none; PADDING-RIGHT: 0cm">
<DIV class=3Dyiv0474239424MsoNormal style=3D"MARGIN-LEFT: 36pt"><B><SPAN =

style=3D"FONT-SIZE: 10pt">From:</SPAN></B><SPAN style=3D"FONT-SIZE: =
10pt"> Fot=20
[mailto:[email-masked]] <B>On Behalf Of </B>marty<BR=20
clear=3Dnone><B>Sent:</B> Tuesday, 12 July 2016 4:09 AM<BR =
clear=3Dnone><B>To:</B>=20
FOT<BR clear=3Dnone><B>Subject:</B> [Fot] Oil Pressure=20
Conundrum</SPAN></DIV></DIV></DIV>
<DIV class=3Dyiv0474239424MsoNormal style=3D"MARGIN-LEFT: =
36pt">&nbsp;</DIV>
<DIV>
<DIV class=3Dyiv0474239424MsoNormal style=3D"MARGIN-LEFT: =
36pt"><SPAN>&nbsp;</SPAN>=20
<SPAN></SPAN></DIV>
<DIV class=3Dyiv0474239424MsoNormal=20
style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0cm">I =
could use=20
some opinions. Some history. Spitfire small journal 1296 engine, rebuilt =
6 race=20
weekends ago included all new bearings. I tore it down this spring to =
check it=20
over prior to last weekend PVGP event. Cam and crank end floats were to =
spec.=20
Rod and main bearings checked between .002 and .003 clearance. I do not =
have the=20
actual numbers in front of me at the present. Cam bearings appeared to =
have some=20
slight visual wear at the bottoms but I did not actually measure them. I =
run=20
Brad Pen 20W50. Oil temps run 210 and water temps run 190. EGT are =
1200/1250=20
range on track. I was fighting low oil pressure at running temps all =
weekend.=20
Once my oil temps come up on track the pressure drops down to 35psi. If =
I add=20
enough springs to the pressure relief valve I see over 125 psi cold so I =
am=20
thinking my pump is putting out enough pressure. I tried shimming to get =
50/60=20
cold at idle and it drops to 35 at operating temps at 7000 rpm. I tried =
a new=20
pressure gage over the weekend and the numbers did not change. I am =
currently=20
running an auxiliary oil line to the head, I removed it at one point =
over the=20
weekend and it had no effect. I tried a new pressure relief valve assy =
and it=20
had no effect.&nbsp; I believe this situation actually started a season =
ago=20
because I added a washer to the pressure relief valve last season.&nbsp; =
I=E2=80=99m=20
thinking it most likely is cam bearing wear even though all the bearings =
were=20
fresh 6 events ago. Any guidance? One thing I did learn this weekend is =
my=20
accusump pressure gage is incorrect.&nbsp; It was reading about 30 psi =
higher=20
that my dash gage. I was thinking it was probably correct and my dash =
gage was=20
wrong until I replaced my electric dash gage with a mechanical gage and =
its=20
reading matched the gage I just disconnected. Oil pressure readings are =
taken at=20
the port below the distributer. </DIV>
<DIV class=3Dyiv0474239424MsoNormal=20
style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: =
0cm">&nbsp;</DIV>
<DIV class=3Dyiv0474239424MsoNormal=20
style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0cm">Side =
note. Car=20
ran awesome. I ran a 2.22 at PittRace Sunday and that was 6 seconds =
faster than=20
my previous best lap there. </DIV>
<DIV class=3Dyiv0474239424MsoNormal=20
style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: =
0cm">&nbsp;</DIV>
<DIV class=3Dyiv0474239424MsoNormal=20
style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: =
0cm">Thanks,</DIV>
<DIV class=3Dyiv0474239424MsoNormal=20
style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0cm">Marty =

</DIV></DIV></DIV></DIV></DIV></DIV>
<DIV>&nbsp;</DIV>
<DIV id=3Dyqt08447=20
class=3Dyqt6998646359>_______________________________________________<BR =

clear=3Dnone><A href=3D"mailto:[email-masked]" shape=3Drect=20
ymailto=3D"mailto:[email-masked]">[email-masked]</A><BR =
clear=3Dnone><BR=20
clear=3Dnone><A href=3D"http://www.fot-racing.com/" shape=3Drect=20
target=3D_blank>http://www.fot-racing.com</A><BR clear=3Dnone><BR =
clear=3Dnone>Donate:=20
<A href=3D"http://www.team.net/donate.html" shape=3Drect=20
target=3D_blank>http://www.team.net/donate.html</A><BR =
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href=3D"http://www.team.net/archive" shape=3Drect=20
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target=3D_blank>http://www.team.net/forums</A><BR =
clear=3Dnone>Unsubscribe/Manage:=20
<A =
href=3D"http://autox.team.net/mailman/options/fot/[email-masked]"=20
shape=3Drect=20
target=3D_blank>http://autox.team.net/mailman/options/fot/bschirano@yahoo=
.com</A><BR=20
clear=3Dnone><BR clear=3Dnone><BR=20
clear=3Dnone></DIV><BR><BR></DIV></DIV></DIV></DIV></DIV>
<P>
<HR>
_______________________________________________<BR>[email-masked]<BR>=
<BR>http://www.fot-racing.com<BR><BR>Donate:=20
http://www.team.net/forums<BR>Unsubscribe/Manage:=20
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From: "Barr, Scott" <[email-masked]>
Date: Thu, 14 Jul 2016 14:05:36 +0000

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From: "Jerry Van Vlack" <[email-masked]>
Date: Thu, 14 Jul 2016 20:25:03 -0400

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Absolutely correct but removing the scratches and maintaining a flat =
surface will not change the end clearance. The plate started out flat =
and this action restores the flat surface. The rotor to end plate =
clearance is controlled by the rotor assembly tolerances and the pump =
body and should be checked.
JVV

From: Barr, Scott=20
Sent: Thursday, July 14, 2016 10:05 AM
To: Jerry Van Vlack ; Brian Schirano ; 'marty' ; FOT List=20
Subject: RE: [Fot] Oil Pressure Conundrum

<< careful removal of all of the scratches and worn areas of the bottom =
plate on the pump where the rotors set >>

=20

And when you do that, be sure to check on the proper end clearance of =
the rotors to the end plate.  There=E2=80=99s a spec on that in the =
manual.

=20

Scott (B.)

=20

From: Fot [mailto:[email-masked]] On Behalf Of Jerry Van =
Vlack
Sent: Thursday, July 14, 2016 4:56 AM
To: Brian Schirano <[email-masked]>; 'marty' <[email-masked]>; =
FOT List <[email-masked]>
Subject: Re: [Fot] Oil Pressure Conundrum

=20

=20

JVV

=20

From: Brian Schirano=20

=20

=20

Best

Brian

=20

26A GT6+, 28 TR6

Brian Schirano
585-305-0349 Cell=20
[email-masked]

=20

=20

Marty,

=20

=20

Kind Regards

Peter Vucinic

[email-masked]

=20

=20

=20

=20

=20

=20

=20

 =20

=20

=20

Thanks,

Marty=20

=20

=20

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<BODY lang=3DEN-US dir=3Dltr vLink=3Dpurple link=3Dblue>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>Absolutely correct but removing the scratches and maintaining a =
flat=20
surface will not change the end clearance. The plate started out flat =
and this=20
action restores the flat surface. The rotor to end plate clearance is =
controlled=20
by the rotor assembly tolerances and the pump body and should be =
checked.</DIV>
<DIV>JVV</DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV>&nbsp;</DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A =
title=[email-masked]=20
href=3D"mailto:[email-masked]">Barr, Scott</A> </DIV>
<DIV><B>Sent:</B> Thursday, July 14, 2016 10:05 AM</DIV>
<DIV><B>To:</B> <A title=[email-masked]=20
href=3D"mailto:[email-masked]">Jerry Van Vlack</A> ; <A=20
title=[email-masked] href=3D"mailto:[email-masked]">Brian =
Schirano</A> ;=20
<A title=[email-masked] =
href=3D"mailto:[email-masked]">'marty'</A> ; <A=20
title=[email-masked] href=3D"mailto:[email-masked]">FOT =
List</A> </DIV>
<DIV><B>Subject:</B> RE: [Fot] Oil Pressure Conundrum</DIV></DIV></DIV>
<DIV>&nbsp;</DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV class=3DWordSection1>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri",sans-serif; COLOR: =
#1f497d'>&lt;&lt;=20
</SPAN><SPAN style=3D'FONT-FAMILY: "Arial",sans-serif; COLOR: =
black'>careful=20
removal of all of the scratches and worn areas of the bottom plate on =
the pump=20
where the rotors set</SPAN><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri",sans-serif; COLOR: =
#1f497d'>=20
&gt;&gt;<o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri",sans-serif; COLOR: =
#1f497d'><o:p></o:p></SPAN>&nbsp;</P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri",sans-serif; COLOR: =
#1f497d'>And=20
when you do that, be sure to check on the proper end clearance of the =
rotors to=20
the end plate.&nbsp; There=E2=80=99s a spec on that in the =
manual.<o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri",sans-serif; COLOR: =
#1f497d'><o:p></o:p></SPAN>&nbsp;</P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri",sans-serif; COLOR: =
#1f497d'>Scott=20
(B.)<o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri",sans-serif; COLOR: =
#1f497d'><o:p></o:p></SPAN>&nbsp;</P>
<DIV>
<DIV=20
style=3D"BORDER-TOP: #e1e1e1 1pt solid; BORDER-RIGHT: medium none; =
BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0in; PADDING-TOP: 3pt; =
PADDING-LEFT: 0in; BORDER-LEFT: medium none; PADDING-RIGHT: 0in">
<P class=3DMsoNormal><B><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: =
"Calibri",sans-serif'>From:</SPAN></B><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri",sans-serif'> Fot=20
[mailto:[email-masked]] <B>On Behalf Of </B>Jerry Van=20
Vlack<BR><B>Sent:</B> Thursday, July 14, 2016 4:56 AM<BR><B>To:</B> =
Brian=20
Schirano &lt;[email-masked]&gt;; 'marty' =
&lt;[email-masked]&gt;; FOT=20
List &lt;[email-masked]&gt;<BR><B>Subject:</B> Re: [Fot] Oil =
Pressure=20
Conundrum<o:p></o:p></SPAN></P></DIV></DIV>
<P class=3DMsoNormal><o:p></o:p>&nbsp;</P>
<DIV>
<DIV>
<DIV>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-FAMILY: "Arial",sans-serif; COLOR: black'>Marty, I =
experienced low=20
to no oil&nbsp; pressure at idle on my 4A street car several years ago, =
and what=20
fixed it for me was new rod bearings and mostly I think was a close =
inspection=20
of the oil pump and maintaining those clearances. So new rotor assembly =
and a=20
careful removal of all of the scratches and worn areas of the bottom =
plate on=20
the pump where the rotors set. Emery paper and a flat piece of glass and =
a lot=20
of hand work getting it flat. I am assuming the oil pump is similar to a =
4a pump=20
in it=E2=80=99s construction. Many highway miles later hot idle is 30 or =
above and at=20
3000 rpm it=E2=80=99s been a steady 65 to 70 pounds. Maybe look there if =
you haven't=20
already done so.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-FAMILY: "Arial",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-FAMILY: "Arial",sans-serif; COLOR: =
black'>JVV<o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV>
<DIV>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: whitesmoke"><B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif; COLOR: =
black'>From:</SPAN></B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif; COLOR: =
black'> <A=20
title=[email-masked] href=3D"mailto:[email-masked]">Brian =
Schirano</A>=20
<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: whitesmoke"><B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif; COLOR: =
black'>Sent:</SPAN></B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif; COLOR: =
black'>=20
Wednesday, July 13, 2016 8:12 AM<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: whitesmoke"><B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif; COLOR: =
black'>To:</SPAN></B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif; COLOR: =
black'> <A=20
title=[email-masked] =
href=3D"mailto:[email-masked]">'marty'</A> ; <A=20
title=[email-masked] href=3D"mailto:[email-masked]">FOT =
List</A>=20
<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: whitesmoke"><B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif; COLOR: =
black'>Subject:</SPAN></B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma",sans-serif; COLOR: =
black'> Re:=20
[Fot] Oil Pressure Conundrum<o:p></o:p></SPAN></P></DIV></DIV></DIV>
<DIV>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-FAMILY: "Calibri",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV></DIV>
<DIV>
<DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163568>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN style=3D"COLOR: =
black">Marty, I=20
think Peter is right. The GT motor I am about to rebuild had similar =
symptoms.=20
Great pressure cold, 75-80, then dropping to 20-25 hot at idle, =
sometimes less=20
and I had to keep RPMs up to ensure lubrication. Uppon teardown, I had a =
a=20
couple of big end rod bearings showing some copper, and others =
indicating wear=20
also, all on the compression stroke side (opposite side of oil journal). =
Mains=20
were all OK. I run street Mobil One 15-50, but think I will change after =

rebuild.<o:p></o:p></SPAN></P></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163838>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D"COLOR: black"><BR><BR><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN style=3D"COLOR: =
black">Would=20
welcome a few race oil opinions from FOT<o:p></o:p></SPAN></P></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163248>
<DIV id=3Dyui_3_16_0_1_1468327401121_163249>
<DIV id=3Dyui_3_16_0_1_1468327401121_163374>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D"COLOR: black">&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163739>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D"COLOR: black">Best<o:p></o:p></SPAN></P></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163760>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D"COLOR: black">Brian<o:p></o:p></SPAN></P></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163376>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D"COLOR: black">&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163378>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN style=3D"COLOR: =
black">26A=20
GT6+, 28 TR6<o:p></o:p></SPAN></P></DIV></DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN style=3D"COLOR: =
black">Brian=20
Schirano<BR>585-305-0349 Cell <BR><A=20
href=3D"mailto:[email-masked]">[email-masked]</A><o:p></o:p></S=
PAN></P></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163346>
<P class=3DMsoNormal style=3D"MARGIN-BOTTOM: 12pt; BACKGROUND: =
white"><SPAN=20
style=3D"COLOR: black"><o:p></o:p></SPAN>&nbsp;</P></DIV>
<DIV id=3Dyui_3_16_0_1_1468327401121_163352>
<DIV id=3Dyui_3_16_0_1_1468327401121_163351>
<DIV id=3Dyui_3_16_0_1_1468327401121_163350>
<DIV id=3Dyui_3_16_0_1_1468327401121_163349>
<DIV class=3DMsoNormal style=3D"BACKGROUND: white; TEXT-ALIGN: center"=20
align=3Dcenter><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Arial",sans-serif; COLOR: =
black'>
<HR align=3Dcenter SIZE=3D1 width=3D"100%">
</SPAN></DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Arial",sans-serif; COLOR: =
black'>From:</SPAN></B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Arial",sans-serif; COLOR: =
black'> Peter=20
Vucinic &lt;<A=20
href=3D"mailto:[email-masked]">[email-masked]</A>&gt;=
<BR><B>To:</B>=20
'marty' &lt;<A =
href=3D"mailto:[email-masked]">[email-masked]</A>&gt;;=20
'FOT' &lt;<A =
href=3D"mailto:[email-masked]">[email-masked]</A>&gt;=20
<BR><B>Sent:</B> Tuesday, July 12, 2016 9:54 AM<BR><B>Subject:</B> Re: =
[Fot] Oil=20
Pressure Conundrum</SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV id=3Dyiv0474239424>
<DIV>
<DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>Marty,</SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>Sounds=20
like some of the bearings clearances are larger than they should be and =
you are=20
losing oil pressure as the oil warms up and starts leaking through the=20
journal(s) faster once you are at operating temps. </SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>If=20
you are running an aggressive cam profile and/or high valve spring =
rates? This=20
will adversely affect cam bearing wear for sure.</SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><B><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>"You=20
can Make a Small Fortune From Motor Racing. As long as You Started With =
A Lage=20
Fortune!"</SPAN></B><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>Kind=20
Regards</SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>Peter=20
Vucinic</SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>TR4 -=20
TR7 V8 - Spitfire MkII</SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>_______________________________________________</SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: #1f497d"><A=20
href=3D"mailto:[email-masked]"=20
target=3D_blank>[email-masked]</A></SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: #1f497d"><A=20
href=3D"http://www.fot-racing.com/"=20
target=3D_blank>http://www.fot-racing.com</A></SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV>
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style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: =
#1f497d">Donate: <A=20
href=3D"http://www.team.net/donate.html"=20
target=3D_blank>http://www.team.net/donate.html</A></SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
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<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D"FONT-SIZE: 10.5pt; FONT-FAMILY: consolas; COLOR: =
#1f497d">Archive: <A=20
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<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
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#1f497d">Forums: <A=20
href=3D"http://www.team.net/forums"=20
target=3D_blank>http://www.team.net/forums</A></SPAN><SPAN=20
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<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
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<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
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<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV id=3Dyiv0474239424yqt20896>
<DIV>
<DIV=20
style=3D"BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; =
BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0in; PADDING-TOP: 3pt; =
PADDING-LEFT: 0in; BORDER-LEFT: medium none; PADDING-RIGHT: 0in">
<DIV style=3D"MARGIN-LEFT: 0.5in">
<P class=3DMsoNormal style=3D"BACKGROUND: white"><B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>From:</SPAN></B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'> Fot=20
[<A=20
href=3D"mailto:[email-masked]">mailto:[email-masked].=
net</A>]=20
<B>On Behalf Of </B>marty<BR><B>Sent:</B> Tuesday, 12 July 2016 4:09=20
AM<BR><B>To:</B> FOT<BR><B>Subject:</B> [Fot] Oil Pressure =
Conundrum</SPAN><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN></P></DIV></DIV></DIV>
<DIV style=3D"MARGIN-LEFT: 0.5in">
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV style=3D"MARGIN-LEFT: 0.5in">
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: black'>&nbsp;=20
<o:p></o:p></SPAN></P></DIV>
<DIV style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 0.5in">
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: black'>I could use =
some=20
opinions. Some history. Spitfire small journal 1296 engine, rebuilt 6 =
race=20
weekends ago included all new bearings. I tore it down this spring to =
check it=20
over prior to last weekend PVGP event. Cam and crank end floats were to =
spec.=20
Rod and main bearings checked between .002 and .003 clearance. I do not =
have the=20
actual numbers in front of me at the present. Cam bearings appeared to =
have some=20
slight visual wear at the bottoms but I did not actually measure them. I =
run=20
Brad Pen 20W50. Oil temps run 210 and water temps run 190. EGT are =
1200/1250=20
range on track. I was fighting low oil pressure at running temps all =
weekend.=20
Once my oil temps come up on track the pressure drops down to 35psi. If =
I add=20
enough springs to the pressure relief valve I see over 125 psi cold so I =
am=20
thinking my pump is putting out enough pressure. I tried shimming to get =
50/60=20
cold at idle and it drops to 35 at operating temps at 7000 rpm. I tried =
a new=20
pressure gage over the weekend and the numbers did not change. I am =
currently=20
running an auxiliary oil line to the head, I removed it at one point =
over the=20
weekend and it had no effect. I tried a new pressure relief valve assy =
and it=20
had no effect.&nbsp; I believe this situation actually started a season =
ago=20
because I added a washer to the pressure relief valve last season.&nbsp; =
I=E2=80=99m=20
thinking it most likely is cam bearing wear even though all the bearings =
were=20
fresh 6 events ago. Any guidance? One thing I did learn this weekend is =
my=20
accusump pressure gage is incorrect.&nbsp; It was reading about 30 psi =
higher=20
that my dash gage. I was thinking it was probably correct and my dash =
gage was=20
wrong until I replaced my electric dash gage with a mechanical gage and =
its=20
reading matched the gage I just disconnected. Oil pressure readings are =
taken at=20
the port below the distributer. <o:p></o:p></SPAN></P></DIV>
<DIV style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 0.5in">
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 0.5in">
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: black'>Side note. =
Car ran=20
awesome. I ran a 2.22 at PittRace Sunday and that was 6 seconds faster =
than my=20
previous best lap there. <o:p></o:p></SPAN></P></DIV>
<DIV style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 0.5in">
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 0.5in">
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>Thanks,<o:p></o:p></SPAN></P></DIV>
<DIV style=3D"MARGIN-BOTTOM: 8pt; MARGIN-LEFT: 0.5in">
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: black'>Marty=20
<o:p></o:p></SPAN></P></DIV></DIV></DIV></DIV></DIV></DIV>
<DIV>
<P class=3DMsoNormal style=3D"BACKGROUND: white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>&nbsp;<o:p></o:p></SPAN></P></DIV>
<DIV id=3Dyqt08447>
<P class=3DMsoNormal style=3D"MARGIN-BOTTOM: 12pt; BACKGROUND: =
white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'>_______________________________________________<BR><A=20
href=3D"mailto:[email-masked]">[email-masked]</A><BR><BR><A=20
href=3D"http://www.fot-racing.com/"=20
target=3D_blank>http://www.fot-racing.com</A><BR><BR>Donate: <A=20
href=3D"http://www.team.net/donate.html"=20
target=3D_blank>http://www.team.net/donate.html</A><BR>Archive: <A=20
href=3D"http://www.team.net/archive"=20
target=3D_blank>http://www.team.net/archive</A><BR>Forums: <A=20
href=3D"http://www.team.net/forums"=20
target=3D_blank>http://www.team.net/forums</A><BR>Unsubscribe/Manage: <A =

href=3D"http://autox.team.net/mailman/options/fot/[email-masked]"=20
target=3D_blank>http://autox.team.net/mailman/options/fot/bschirano@yahoo=
.com</A><BR><BR><o:p></o:p></SPAN></P></DIV>
<P class=3DMsoNormal style=3D"MARGIN-BOTTOM: 12pt; BACKGROUND: =
white"><SPAN=20
style=3D'FONT-FAMILY: "Helvetica",sans-serif; COLOR: =
black'><o:p></o:p></SPAN>&nbsp;</P></DIV></DIV></DIV></DIV></DIV>
<DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><SPAN =

style=3D'FONT-FAMILY: "Calibri",sans-serif; COLOR: black'>
<HR align=3Dcenter SIZE=3D2 width=3D"100%">
</SPAN></DIV>
<P class=3DMsoNormal style=3D"MARGIN-BOTTOM: 12pt"><SPAN=20
style=3D'FONT-FAMILY: "Calibri",sans-serif; COLOR: =
black'>_______________________________________________<BR><A=20
href=3D"mailto:[email-masked]">[email-masked]</A><BR><BR><A=20
href=3D"http://www.fot-racing.com">http://www.fot-racing.com</A><BR><BR>D=
onate: <A=20
href=3D"http://www.team.net/donate.html">http://www.team.net/donate.html<=
/A><BR>Archive:=20
<A =
href=3D"http://www.team.net/archive">http://www.team.net/archive</A><BR>F=
orums:=20
<A=20
href=3D"http://www.team.net/forums">http://www.team.net/forums</A><BR>Uns=
ubscribe/Manage:=20
<A=20
href=3D"http://autox.team.net/mailman/options/fot/[email-masked]"=
>http://autox.team.net/mailman/options/fot/[email-masked]</A><BR>=
<BR><o:p></o:p></SPAN></P></DIV></DIV></DIV></DIV></DIV></DIV></DIV></BOD=
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