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Water in the oil!

M

Mac DeBusk

New User
I've been working on an old IH Utility 340 gasoline, and I just finished rebuilding the engine where it threw a rod. Part of the job was removing and reinstalling the piston sleeves. Now my number 2 sleeve leaks water. There's no gasket or seal at the bottom of the sleeve. How do I fix the leak?
 
The bottom of the sleeve is sealed by a large "O"ring. It is in a groove at the point where the sleeve spigot touches the block. It is there and will take a dental pick and or other effort to get it out. New are available. Clean well, do not scratch the groove with a metal tool or the scratch will leak. Use a coating of dish soap as lube to install the sleeve. Pulling the head is the only way to get at it. Good luck, JimN
 
(quoted from post at 14:40:02 04/22/09) I've been working on an old IH Utility 340 gasoline, and I just finished rebuilding the engine where it threw a rod. Part of the job was removing and reinstalling the piston sleeves. Now my number 2 sleeve leaks water. There's no gasket or seal at the bottom of the sleeve. How do I fix the leak?
Click to expand...

When you rebuilt the engine did you buy an overhaul kit? If so the new kit should have had new O-rings included. The o-ring can be hard to see in low light but if you shine a flashlight down in there you will see the o- ring located where the bottom of the sleeve slides into the block. The o-ring is located in a groove in the block (like stated) and not on the sleeve. The o-ring is probably 1/4" or so thick and will be mashed flat in the groove.
 
Yep, there was an O-ring in the bottom. I can't believe I didn't see that the first time, but when I took the #2 sleeve out and inspected the surface I saw it, picked it out with a flathead screwdriver and noticed that it is indeed damaged. I'm going to replace all four now that I have the engine torn down to that point. Thanks for the advice!
 
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