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[Fot] Spitfire High oil pressure

Subject: [Fot] Spitfire High oil pressure
From: levilevi at comcast.net (Bud Rolofson)
Date: Sun, 3 Jun 2018 17:38:14 -0600
I've blow two Earl's oil coolers out with much oil leaking out. My oil pressure 
gage reads very high (90-100 psi) and I suspect high oil pressure is causing 
the problem. I checked to see if the oil pressure relief valve was stuck but it 
came out freely.  Diagrams of the relief valve show a sealing washer between 
the relief valve cap and the block but mine did not have that sealing washer. 

Could that washer (or lack of) be responsible for letting the valve push 
further into the block and hence making the spring compress more requiring more 
oil pressure? If anyone knows how thick that sealing washer is please let me 
know. I'd guess 1/8 inch or so. I guess that could make a difference.

Thanks
Bud


What is normal for a 1300 race engine? And how best to decrease oil pressure to 
normal?

Sent from my Commodore 64

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