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Old 09-15-2019, 10:23 AM   #93
Railcarmover
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Join Date: Apr 2017
Location: Sacramento
Posts: 1,262
Default Re: babbit tolerance? .000?

Quote:
Originally Posted by dean from bozeman View Post
So I had an engine rebuilt some years ago. The rebuilder said that he liked to bore engines tight so that when they broke in they would last a long time. The engine runs but then you can't restart it while it's hot because of expansion. If you wait for a while it will eventually cool down and then you can restart it.

At first I thought that it was that the pistons were too tight. I replaced the .040 pistons with .030 pistons. It runs but still "freezes up" after running for a while.

I would take it back to the rebuilder but he is no longer in business. I wonder why?!

Short of having the engine rebored (cylinders and main) are there any suggestions on how to get this engine useable?

Thanks.
Dean
Depends on what is causing it to bind.The best solution to your issue is to disassemble your engine completely,then re assemble insuring everything is in spec. There are many possible causes,the only way to know for sure is to 'put your finger' on the problem,anything else is speculation.The only way to effectively repair an issue is to find the root cause.
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