Re: low compression, no oil pressure

Posted by Ross On 2024/10/19 21:53:32

Your oil pump has lost its prime, or it was assembled dry and cannot draw a vacuum sufficient to pull the oil up from the pan.

Take the cover off and smear the gears generously with heavy gear oil or STP. Check that your cover gasket is very thin, about .005 at the most. Some of the older gasket sets had very thick gaskets which caused a lot of oil to bypass around the ends of the gears. I have made those gaskets from standard notebook paper with good results.