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Thanks,
It's 1969 stock deco remy distributor with a vacuum advance with ported vacu=
um so there's no vacuum until the throttle plate opens. When it opens it ma=
kes the distributor timing advance via the vac unit.
It's a 69 so no clutch fan.
Thanks
Bud
Sent from my Commodore 64
> On Jan 11, 2021, at 6:01 PM, John Innis <jdinnis@gmail.com> wrote:
>=20
> That does not sound right to me, normally you expect vacuum to be HIGHEST a=
t idle and fall off as RPM's increase. Do you know which model of the Delco=
distributor you have? IIRC there was one that had a vacuum retard, instead=
of advance. =20
> WRT your overheating, check your fan clutch. That sounds like it is not g=
etting enough air. =20
>=20
>=20
>> On Mon, Jan 11, 2021 at 2:03 PM Bud Rolofson <levilevi@comcast.net> wrote=
:
>> I=E2=80=99m using dual 1 1/4=E2=80=9D SU carbs. The front carb has a vacu=
um connection right at the butterfly that pulls no vacuum at idle but 9 psi a=
t > 2000 rpm when the butterfly opens.
>>=20
>>=20
>>> On Jan 11, 2021, at 12:03 PM, John Innis <jdinnis@gmail.com> wrote:
>>>=20
>>> What carb are you using and where on the carb is the vacuum line connect=
ed? DGV's are notorious for this, because carb vacuum line is NOT a manifol=
d vacuum source, it is a venturi vacuum source. =20
>>>=20
>>>> On Mon, Jan 11, 2021 at 12:34 PM Bud Rolofson <levilevi@comcast.net> wr=
ote:
>>>> Listerati,
>>>>=20
>>>> I=E2=80=99m trouble shooting a overheating problem at highway speeds (6=
5-70mph) with my 69 Spitfire. Temp gage goes to red at higher speeds but the=
n immediately cools off when idling.
>>>>=20
>>>> I suspect I have a bad or weaken vacuum advance on my Spitfire=E2=80=99=
s delco remy (friggin spell check made me type that over and over) distribut=
or. I tested the vacuum line from the carb and it gets to 9 psi where the li=
ne connects to the vacuum advance when the engine is at 2500-3000 RPM.
>>>>=20
>>>> The problem is there is no movement to advance the timing that I can se=
e by watching the vernier advance knob, it does not move at 2500-3000 rpm.
>>>>=20
>>>> Two questions:
>>>>=20
>>>> Should 9 psi be enough for the vacuum advance to work properly? I coul=
dn=E2=80=99t find specs for vacuum advances.
>>>>=20
>>>> If the vernier knob isn=E2=80=99t moving then is the vacuum advance not=
working or the centrifugal weights not moving? Or maybe both?
>>>>=20
>>>> Thanks
>>>> Bud=20
>>>>=20
>>>> Extreme Parts Racing (more than just a haircut)
>>>>=20
>>>> 71TR6 CC57365 (Good 6)
>>>> 71 Spitfire MK IV Race Car #3
>>>> 69 Spitfire MK III (back up FE engine/dinghy car)
>>>> 93 Minnie Winnie Race Support Vehicle=20
>>>> 77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)
>>>>=20
>>>> ** triumphs@autox.team.net **
>>>>=20
>>>> Donate: http://www.team.net/donate.html
>>>> Archive: http://www.team.net/pipermail/triumphs http://www.team.net/ar=
chive
>>>>=20
>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/jdin=
nis@gmail.com
>>>=20
>>>=20
>>> --=20
>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D
>>> =3D Never offend people with style when you =3D
>>> =3D can offend with substance --- Sam Brown =3D
>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D
>>=20
>> Bud Rolofson
>>=20
>> Extreme Parts Racing (more than just a haircut)
>>=20
>> 71TR6 CC57365 (Good 6)
>> 71 Spitfire MK IV Race Car #3
>> 69 Spitfire MK III (back up FE engine/dinghy car)
>> 93 Minnie Winnie Race Support Vehicle=20
>> 77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)
>=20
>=20
> --=20
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D
> =3D Never offend people with style when you =3D
> =3D can offend with substance --- Sam Brown =3D
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div><span></span></div><div><div>Thanks,</=
div><div id=3D"AppleMailSignature">It's 1969 stock deco remy distributor wit=
h a vacuum advance with ported vacuum so there's no vacuum until the throttl=
e plate opens. When it opens it makes the distributor timing advance v=
ia the vac unit.<br>It's a 69 so no clutch fan.</div><div id=3D"AppleMailSig=
nature">Thanks</div><div id=3D"AppleMailSignature">Bud<br>Sent from my Commo=
dore 64</div><div><br>On Jan 11, 2021, at 6:01 PM, John Innis <<a href=3D=
"mailto:jdinnis@gmail.com";>jdinnis@gmail.com</a>> wrote:<br><br></div><bl=
ockquote type=3D"cite"><div><div dir=3D"ltr"><div>That does not sound right t=
o me, normally you expect vacuum to be HIGHEST at idle and fall off as RPM's=
increase. Do you know which model of the Delco distributor you have?&=
nbsp; IIRC there was one that had a vacuum retard, instead of advance. =
<br></div><div>WRT your overheating, check your fan clutch. That soun=
ds like it is not getting enough air. <br></div><div><br></div></div><=
br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, J=
an 11, 2021 at 2:03 PM Bud Rolofson <<a href=3D"mailto:levilevi@comcast.n=
et">levilevi@comcast.net</a>> wrote:<br></div><blockquote class=3D"gmail_=
quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,2=
04);padding-left:1ex"><div style=3D"overflow-wrap: break-word;">I=E2=80=99m u=
sing dual 1 1/4=E2=80=9D SU carbs. The front carb has a vacuum connection ri=
ght at the butterfly that pulls no vacuum at idle but 9 psi at > 2000 rpm=
when the butterfly opens.<div><br></div><div><br><div><blockquote type=3D"c=
ite"><div>On Jan 11, 2021, at 12:03 PM, John Innis <<a href=3D"mailto:jdi=
nnis@gmail.com" target=3D"_blank">jdinnis@gmail.com</a>> wrote:</div><br>=
<div><div dir=3D"ltr">What carb are you using and where on the carb is the v=
acuum line connected? DGV's are notorious for this, because carb vacuu=
m line is NOT a manifold vacuum source, it is a venturi vacuum source.  =
;<br></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_at=
tr">On Mon, Jan 11, 2021 at 12:34 PM Bud Rolofson <<a href=3D"mailto:levi=
levi@comcast.net" target=3D"_blank">levilevi@comcast.net</a>> wrote:<br><=
/div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bor=
der-left:1px solid rgb(204,204,204);padding-left:1ex">Listerati,<br>
<br>
I=E2=80=99m trouble shooting a overheating problem at highway speeds (65-70m=
ph) with my 69 Spitfire. Temp gage goes to red at higher speeds but then imm=
ediately cools off when idling.<br>
<br>
I suspect I have a bad or weaken vacuum advance on my Spitfire=E2=80=99s del=
co remy (friggin spell check made me type that over and over) distributor. I=
tested the vacuum line from the carb and it gets to 9 psi where the line co=
nnects to the vacuum advance when the engine is at 2500-3000 RPM.<br>
<br>
The problem is there is no movement to advance the timing that I can see by w=
atching the vernier advance knob, it does not move at 2500-3000 rpm.<br>
<br>
Two questions:<br>
<br>
Should 9 psi be enough for the vacuum advance to work properly? I coul=
dn=E2=80=99t find specs for vacuum advances.<br>
<br>
If the vernier knob isn=E2=80=99t moving then is the vacuum advance not work=
ing or the centrifugal weights not moving? Or maybe both?<br>
<br>
Thanks<br>
Bud <br>
<br>
Extreme Parts Racing (more than just a haircut)<br>
<br>
71TR6 CC57365 (Good 6)<br>
71 Spitfire MK IV Race Car #3<br>
69 Spitfire MK III (back up FE engine/dinghy car)<br>
93 Minnie Winnie Race Support Vehicle <br>
77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)<br>
<br>
** <a href=3D"mailto:triumphs@autox.team.net"; target=3D"_blank">triumphs@aut=
ox.team.net</a> **<br>
<br>
t=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/triumphs"; rel=3D"noreferre=
r" target=3D"_blank">http://www.team.net/pipermail/triumphs</a> <a hre=
f=3D"http://www.team.net/archive"; rel=3D"noreferrer" target=3D"_blank">http:=
//www.team.net/archive</a><br>
<br>
s/jdinnis@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.team.=
net/mailman/options/triumphs/jdinnis@gmail.com</a><br>
</blockquote></div><br clear=3D"all"><br>-- <br><div dir=3D"ltr">=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D<br>=3D Never offend people with style when you =3D<br>=
=3D can offend with substance --- Sam Brown =3D<br>=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
</div>
</div></blockquote></div><br><div>
Bud Rolofson<br><br>Extreme Parts Racing (more than just a haircut)<br>=
<br>71TR6 CC57365 (Good 6)<br>71 Spitfire MK IV Race Car #3<br>69 S=
pitfire MK III (back up FE engine/dinghy car)<br>93 Minnie Winnie Race&=
nbsp;Support Vehicle <br>77 Z-50A Hardly Davidson Honda Mini-Trail=
Bike (Triumph Pit Bike)
</div>
<br></div></div></blockquote></div><br clear=3D"all"><br>-- <br><div dir=3D"=
ltr" class=3D"gmail_signature">=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>=3D Never offend p=
eople with style when you =3D<br>=3D can offend with substance -=
-- Sam Brown =3D<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D</div>
</div></blockquote></div></body></html>=
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** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
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