b allis oil pan leaks
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=12653
Printed Date: 31 Jan 2025 at 2:08pm
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Topic: b allis oil pan leaks
Posted By: Mikey
Subject: b allis oil pan leaks
Date Posted: 19 May 2010 at 7:35am
| I installed a new gasket and it leaks worse than it did before -- After removing for the second time I've noticed the engine is not exactly flush across the front -- There is like 2 small gaps and a 3 or 4 inch piece in between -- It is this small piece that is causing the problem I believe, it sets 1/8th inch of so higher than it should be to be flush with the rest of the underside of the engine -- You guys ever have this problem and/or what to do to fix it? Thanks Mikey |
Replies:
Posted By: Dick L
Date Posted: 19 May 2010 at 7:55am
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The front pan bolts go into the lip on the timing gear cover and the two rear pan bolts go into the rear crankshaft seal retainer. I have never seen them not be flush with the block. If they are, some one some time must have did some rework on them.
You will have a gap the thickness of the gasket if the gasket between the timing gear cover and block on the inside of the timing gear gasket.
When I put these ends on the block I take care to seal those areas slightly high but not higher than half the thickness of the pan gasket.
At your point I make sure that the timing gear cover was correct and flush with the block. If not I would get another cover. I probly have a dozen timing gear covers and when I am putting an engine together I choose the best one that takes the least work and have never had one that was not flush with the block.
If you find that is actually flush make sure that the oil is washed clean in the area of the leak and use silicone gasket maker and make sure it is slightly above and below the open areas and let it dry over night. That way it will never move away into the pan.
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Posted By: Dick L
Date Posted: 19 May 2010 at 10:05am
Maybe this picture will help. It is not a close up but the blue stuff is my insurance.
 A different time and maybe a better shot.
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