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Farmall & IHC Tractors Discussion Forum
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A Crankshaft

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Gene37

10-28-2005 04:52:14




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Upon disassembly of our A engine we found some groves on the bearing surface. Can we have the crank ground 10 or 20 under and are there oversize bearings made for this sitituiton?
Thanks in advance.

Gene




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T6Dave

10-28-2005 16:52:50




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 Re: A Crankshaft in reply to Gene37, 10-28-2005 04:52:14  
The crank on my A is ground 10 under. It is easy to buy bearings for that.

Dave



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El Toro

10-28-2005 05:39:44




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 Re: A Crankshaft in reply to Gene37, 10-28-2005 04:52:14  
I would check the oil pump to see if the gears are worn or if the pump screen is sludged over. The bearings may not have been getting enough oil and that caused the scored shaft. Oil passages
could be sludged too and restricting oil flow
throughout the engine. Hal



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El Toro

10-28-2005 05:14:33




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 Re: A Crankshaft in reply to Gene37, 10-28-2005 04:52:14  
Your auto machine shop should be able to get new undersize rod and main bearings for your tractor.
When I did my A it needed .002" undersize and our local machine shop had the bearings. Hal
PS: They will determine how much needs to ground
off or if polishing will do.



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