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Re: What is normal oil pressure?
Posted by bazil burns (more from bazil burns) on Fri, 31 Dec 2004 03:26:42
In Reply to: What is normal oil pressure?, Saabpilot
[Profile/Gallery]
, Thu, 30 Dec 2004 16:15:32
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With my 200k motor, I'm seeing 40-50psi at a cold idle, 18-20psi at a hot idle, 65-70psi cold driving, and warm, I'd say 47-48ish at 2000rpm. Saab spec is minimum of 39psi with warmed 10W40 oil at 2000rpm, and oil grade does make a difference I've noticed.
Grant (further down the thread) apparently has a stuck relief valve or a defective gauge or sender, as there's a pressure reducing valve that opens to keep pressure below 70, i believe. Too much pressure isn't good - early VW VR6 engines have a reputation for jamming the pressure relief shut, which causes 150+psi pressure on a cold start, which causes the oil filter to pop like an overripe tomato.
--bazil
'85 SPG
posted by 69.169.225...
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