Posted by JDBRIDER on April 17, 2023 at 15:33:16 from (47.32.15.74):
I have a 1945 John Deere B. I replaced the oil pressure gauge recently because the old one hasn't worked for a couple of years. The gauge I bought is like the original except it doesn't say John Deere on the face. When I run the tractor the gauge reads a little above the Stop point. Doesn't matter what the RPMs are. I don't remember what it showed when the old gauge worked but it was at an acceptable level. I put gas pistons and a cold manifold on it a couple years ago and the connecting rod bearings were within spec then. I haven't checked the main bearing clearances but I did put a dial indicator on the crankshaft on both ends and then lifted up and down on the crank and had 6 thousands of clearance on the flywheel end and 7 thousands on the pully end. I rotated the crank and checked several times on each end. Thinking I should turn up the pressure at the oil pump. Don't know how much to turn it up but thinking a couple of turns. Does that sound like enough. What do you think of my method of checking the mains? Flame suit on.
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