Bill M. From Illinois
Member
I'm happy but stumped on what changed my oil pressure for the good. I overhauled this 2N last year with crank ground and new bearings . The oil pump was overhauled and snug. Cold engine and the oil pressure was 80 or more, hot idle it was less than 10. Replaced relief valve and spring and it made no difference. I took the plug out and no oil was getting up there. I Did my best to get mig welding wire down the hole to clear it but assumed it did not help. Eventually the plugged up line must have busted loose because cold it stared reading 30 psi. I took the 80 PSI gauge out and replaced with a 50 PSI gauge but figured I would have to live with the low hot oil pressure because the camshaft bearing must have excess clearance. Now the strange part: the hot oil pressure problem went away! Now I'm seeing 20 PSI hot idle. Any ideas what happened? I'm working on another engine now so hopefully there wont be any more weird questions. Bill