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<DIV>That is the oil pan drain plug. </DIV>
<DIV> </DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: #000000">David
Nock<BR>British Car
Specialists<BR>209-948-8767<BR>www.britishcarspecialists.com</DIV>
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style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
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<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=dcorning@ford.com
href="mailto:dcorning@ford.com">Corning, Dan (D.C.)</A> </DIV>
<DIV><B>Sent:</B> Thursday, May 03, 2018 8:32 AM</DIV>
<DIV><B>To:</B> <A title=healeys@autox.team.net
href="mailto:healeys@autox.team.net">healeys@autox.team.net</A> </DIV>
<DIV><B>Subject:</B> Re: [Healeys] Feeling Pressured -
Resolved</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'><FONT
size=2 face="Lucida Bright"><SPAN style="FONT-SIZE: 10pt">
<DIV>Thanks to all that responded!</DIV>
<DIV><FONT size=2 face=Calibri><SPAN
style="FONT-SIZE: 11pt"></SPAN></FONT> </DIV>
<DIV>As it turned out the pressure relief valve “plug” was evidently the wrong
part for the application. The spring would not sit inside the shoulder of
the plug causing the spring to sit too far into the engine bore, forcing itself
into the pressure relief valve and sealing it off. I hated doing so but I
drilled out the center of the plug, allowing the spring to sit inside.
(Before and after photos) I cleaned all the shavings up, reinstalled and
test cranked the engine, the pressure was reduced by almost half, down to 50
PSI. Thanks again!</DIV>
<DIV><FONT size=2 face=Calibri><SPAN
style="FONT-SIZE: 11pt"></SPAN></FONT> </DIV>
<DIV><IMG src="cid:8CE2F345F0624AF58DB1D6C83FF02189@DavidNockHP"> <IMG
src="cid:9C66C3553475494887B61847D4FE4ABE@DavidNockHP"> <IMG
src="cid:DB1AA0FB007B4E828777415BD7DEF0A7@DavidNockHP"> </DIV>
<DIV>Best,<FONT face=Calibri> </FONT></DIV>
<DIV><FONT face=Calibri><BR><FONT face="Lucida Bright">Dan
Corning</FONT></FONT></DIV>
<DIV><FONT size=2 face=Calibri><SPAN
style="FONT-SIZE: 11pt"></SPAN></FONT> </DIV>
<DIV><FONT size=2 face=Calibri><SPAN style="FONT-SIZE: 11pt"><B>From:</B>
Richard J. Hockert <rjhco@att.net> <BR><B>Sent:</B> Thursday, May 03, 2018
9:21 AM<BR><B>To:</B> Corning, Dan (D.C.)
<dcorning@ford.com><BR><B>Subject:</B> Re: [Healeys] Feeling
Pressured</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Calibri><SPAN
style="FONT-SIZE: 11pt"></SPAN></FONT> </DIV>
<DIV><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">You have
correctly diagnosed the problem.</SPAN></FONT></DIV>
<DIV><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </DIV>
<DIV><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">Solution
is to end up with correct spring pressure. Since the spring fits into the
valve, it is likely the correct spring.</SPAN></FONT></DIV>
<DIV><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </DIV>
<DIV><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">Either
change plug or bore out the center of the plug.</SPAN></FONT></DIV>
<DIV><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </DIV>
<DIV style="MARGIN-BOTTOM: 12pt"><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 12pt">Spring fits into the plug on my
engine.</SPAN></FONT></DIV>
<DIV><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">Best
regards,</SPAN></FONT></DIV>
<DIV><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 12pt">Jim</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Calibri><SPAN
style="FONT-SIZE: 11pt">_____________________________________________<BR><B>From:</B>
Corning, Dan (D.C.) <BR><B>Sent:</B> Thursday, May 03, 2018 1:08
AM<BR><B>To:</B> 'healeys@autox.team.net'
<healeys@autox.team.net><BR><B>Subject:</B> Feeling
Pressured</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Calibri><SPAN
style="FONT-SIZE: 11pt"></SPAN></FONT> </DIV>
<DIV>I’m trying to diagnose why my BT7s oil pressure too high after rebuilding
the engine. With the spark plugs removed, engine cranking oil pressure
builds to 90 PSI. I did install a high capacity oil pump from Healey
Surgeons but I don’t think that is the root of the issue. I’ve never
started the engine after the rebuild and won’t until I get this resolved.</DIV>
<DIV> </DIV>
<DIV>Looking through the archives for similar problems led to the possibility
the oil pressure relief return port was covered during the rebuild, blocking the
return of oil to the sump. To test this, I pulled the oil pressure relief
valve and spring, put the plug back in and cranked the engine. The
cranking oil pressure dropped significantly, low enough that it didn’t register
on the gauge. If I’m correct, that eliminates the return port as the
problem because if they WERE plugged, the oil return still would have been
blocked and the pressure would have still been high. I suspect it’s now
more likely the pressure relief valve is sticking in the bore or simply too much
spring pressure keeping the valve closed. </DIV>
<DIV> </DIV>
<DIV>I trial fitted the pressure relief valve back in the engine bore and didn’t
feel any binding although the valve did have some scoring. Reviewing each
component, I noticed the spring fits nicely inside the back side of the pressure
relief valve but does not fit INTO the cavity inside the plug. (see
photo) Is it possible I have the wrong plug? Maybe switched the oil
pan plug with the pressure relief plug forcing the spring too far into the
pressure relief bore?</DIV>
<DIV> </DIV>
<DIV>Any ideas that might help me pinpoint the concern?</DIV>
<DIV> </DIV>
<DIV>Best,<FONT face=Calibri> </FONT></DIV>
<DIV><FONT face=Calibri><BR><FONT face="Lucida Bright">Dan
Corning</FONT></FONT></DIV>
<DIV><FONT size=2 face=Calibri><SPAN
style="FONT-SIZE: 11pt"></SPAN></FONT> </DIV></SPAN></FONT>
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