Re: Want to Talk to Experienced Engine Rebuilder

Posted by Jonathan Mirgon on November 24, 2003 at 09:13:12 from (205.208.129.178):

In Reply to: Want to Talk to Experienced Engine Rebuilder posted by moonlite on November 23, 2003 at 16:18:40:

I am not a machinist by far, even have to look at a micrometer two or three times to make sure I am reading it right but am just adding a comment. Crankshafts rather in the automobile industry or 1940's era tractors, seem to hold up absolutly fine when machined to undersized. I have never heard of a crankshaft failing in either industry when it is assembled correctly. If you were working on a top fuel dragster im sure that the real science of stress and tolerences to the hundred thousandth of in inch are very important. But when it comes to a tractor, that is 50 + years old, I would stick to the technology that was available 50+ years ago. As machining cranks on these old things is done all the time. Or you could spend a lot of money on a new old stock crank, that has never been ground, and will have the same result as a machined one.

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