A oil pressure

Bkpigs · Nov 13, 2010

So I inframed the A with new pistons, sleeves, and rod bearings. I used 2 under for the bearings and it plastiguaged about .0035 or so which is a little much but I didn't think too much out of line. The oil pressure is fine (about half on a 75psi guage at idle). However, when it gets fully warmed up I can barely keep the needle above the first line (guessing that is about 10 psi). I used mostly 10W40 with a quart or two of 10W30 oil. Could being that little over on clearance with the rod bearings be causing that much trouble? Beginning to think I should have pulled the mower out from underneath the tractor and sold the tractor while I was ahead.

teddy52food · Nov 13, 2010

How much clearance on the mains? Did you do anything with the oil pump?

TractormanNC · Nov 13, 2010

Did you check to se if the oil pump cover is warped and the gasket is blown out. Common problem on these engines. Been covered many times on this forum. Search the archives.

Tom Fleming · Nov 14, 2010

Oil pump face plate is leaking is my guess (as others have stated). Actually a relatively easy fix, but you will have to drop the pan again and remove the oil pump to do it right (although, you could do it with the pump in also). CIH still has the gaskets.

As a bit of good natured advice to you and other that may read this post, if you have gone to the trouble of dropping the pan and replaced the bearings, you should do the oil pump while you are in that far. Not a slap, but a suggestion.

IMHO.

Bkpigs · Nov 14, 2010

thanks guys, I will look at the oil pump.

Anonymous-0 · Nov 15, 2010

I had the same problem on my SA. It was the oil pump plate an gasket. Thanks to the knowledge of this board it saved me tearing down a good motor.

A oil pressure

Bkpigs

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teddy52food

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TractormanNC

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Tom Fleming

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Bkpigs

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Anonymous-0

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