Posted by 2tractors on December 06, 2013 at 04:50:53 from (192.222.24.245):
In Reply to: Re: low oil pressure posted by ben harpo on December 05, 2013 at 14:48:46:
The pressure relief valve inside the oil pump requires pulling the pan, removing the pump.Jerry and others schooled me on its operation while I rebuilt a to20. Type relief valve in the search column to find the info in the archives.If the spring is weak I suppose 30psi may collapse it and expose the relief bypass hole and require a shim or a new spring. While you have the pan off I would advise that you first plastiquage the bearings to see if that is the problem but with 20 lbs its best to LEAVE IT ALONE.
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