Re: 656 Low Oil Pressure after rebuild (like CJ 1080)

Posted by John B. on May 31, 2009 at 06:34:22 from (38.114.64.179):

In Reply to: 656 Low Oil Pressure after rebuild (like CJ 1080) posted by TX656 on May 30, 2009 at 19:54:58:

Did you bleed the line going to the oil gauge?

Is the relief valve stuck open slightly?

I had this problem on an IH C200 engine and if I remember right it had to do something with a plug at the rear end of the camshaft. It was not in far enough and left a drain hole open causing the oil to drain back into the pan and not letting much pressure build up.

When rebuilding an engine very few people take the oil pump apart which is the heart of the engine. The bottom plate gets wore over the years and causes bypass of oil thus not generating much pressure. There is also a new gasket of a certian thickness that needs to be installed when the oil pump is reassembled.

There is an engine assembly grease that I use on the bearings when I put an engine back together. I also fill the gears of the oil pump full of grease so it primes quicker.

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