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8v92 low oil pressure

reefrunnerau

New member
"More problems!!! Was running

"More problems!!! Was running a bit warmer than usual so had to keep the revs down a touch, at the end of the day the oil pressure was down to nearly failure at idle and about 25psi at revs. At cold the pressure is nearly normal. Thought it might of been bearing problems but oil anaysis is normal. Any suggestions as to what it might be???? Thanks."
 
"If it went low all of a sudde

"If it went low all of a sudden like, then you could have a bad oil pressure regulator valve. If it's been gradually dropping pressure you may want to look at the oil pump. Either way, if you go there I'd recommend new for both.

If the engine was recently overhauled, there are some plugs in the oil galleries that have been known to work loose if not staked in after block cleaning. This would be hard to locate without pulling the pan and externally pressurizing the passages. A real bitch even when the thing is on an engine stand.

Also keep in mind that unless the oil sample for analysis was taken properly, the test could miss the lead, copper and zinc particulates that would indicate bearing failure."
 
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