sbc high oil pressure

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03-24-2012 | 07:42 AM

#11

BillK

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Joined: Oct 2005

Posts: 1,074

Likes: 251

From: Waldorf, Md

Quote:

Originally Posted by Yoda_Man

Or is the relief valve opening all the time on a normal engine.

Yoda,
The relief valve is open almost all of the time. I forget the number but I was talking to George at Melling one day and he said that the pump would pump an ungodly pressure without the relief valve.

03-24-2012 | 08:44 AM

#12

dereknkathy

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Joined: Feb 2012

Posts: 4,031

Likes: 10

From: westville, NJ

the slant six i shimmed the relief valve shut. i watched the oil pressure guage peg and heard the oil filter blow in 5 seconds at IDLE. so that relief valve is the problem.

03-24-2012 | 01:10 PM

#13

FIXX

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Joined: Aug 2005

Posts: 6,306

Likes: 1

From: Between A Womans Leggs in IL

fixx

Quote:

Originally Posted by BillK

That is only on Big Blocks and it is the other way around, they give you the HP spring to install if you want to.

correction,,i was tinking of the m55hv..that pump came with a low pressure yellow spring..

06-18-2012 | 10:39 PM

#14

Yoda_Man

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Joined: Feb 2009

Posts: 100

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From: Vancouver BC

*update

After changing the oil pump, inspecting the bearings and having the oil pressure be the same. I decided to just run it so I did at idle for an hour since then its been fine and the oil pressure wont go past 75 now