Re: Oil Pressure/ lifter noise - Saab 900 Bulletin Board - Saabnet.com
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Re: Oil Pressure/ lifter noise
Posted by Jim King [Email] (more from Jim King) on Wed, 25 Sep 2002 00:45:04
In Reply to: Oil Pressure/ lifter noise, Dave R [Profile/Gallery]
, Tue, 24 Sep 2002 21:27:00
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Dave,
Before you do anything you need to see what your oil pressure is with a know good mechanical oil pressure gauge. At 157k your engine isn't that old but the lifters could have too much clearence causing the noise. Check your oil pressure first and then go on to what is worn. To much clearence in the main or rod bearings will cause low oil pressure but usally with knocks and noise. Worn oil pumps will cause low oil pressure, as will a defective pressure relief valve. The oil pump and relief valve are relativly easy to replace when you know you have a low oil pressure problem. You should be running at least 39 psi at 2000 rpm with a hot engine. Check things out before you tear it apart, it might be easier then you think.
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