Re: A crankshaft.

Posted by Andy Martin on January 14, 2005 at 05:48:48 from (64.219.39.195):

In Reply to: A crankshaft. posted by Opa A on January 13, 2005 at 16:05:30:

Not a bad idea to rebuild, but you'd be surprised how long the old girl would run with loose bearings.

The key is low rpm's. An automobile at 3500 rpm or more requires a lot better clearances than a tractor at 1500.

I thought you could get 0.040 bearings and turn the crank, but maybe not on an A.

Of course I'd buy a set of 0.030 bearings after checking the crank (with a mic) and run it a little loose for a low dollar repair. If the bearings are etched you may have a crank that is OK. Remember: 1 low rpm, 2 engine designed for inferior motor oil

I'm a heretic but have never thrown a rod in an old IH engine and don't waste money trying to get back to factory specifications because I work my tractors and will wear out whatever I put in anyway. Most collectors put a lot of money in an old tractor to "make it right" and then never put over a couple of thousand hours on it, and not under load to boot.

Follow Ups:

• Re: A crankshaft. Opa A 12:57:12 01/14/05 (0)

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