[Farmall] 100 breaking crankshafts

[Andy glines]

Something is out of line.  Has one or more of the main
caps been switched?  Its probably time to take the
engine into the machine shop to have it checked out
and maybe line-bored.  Take the crank in as well and
have it checked for straightness.

--- John Hall <jthall at worldnet.att.net> wrote:

> Dad got a call from a guy that has a Farmall 100
> that likes to break 
> crankshafts. 3 of them thsu far. All running at low
> RPM when it 
> happened--tractor is never used for heavy pulling.
> All broke beside #1 
> journal. The guy said the last one lasted 3 years.
> Our thinking is either #1 
> rod is twisted somehow or where the front main is,
> there is something 
> causing the block to move---cracked block, something
> funny with a timing 
> gear putting unusual pressure on that end of the
> crank. The tractor is too 
> old too say the mains weren't line bored correctly
> at the factory. The guy 
> asked is he possibly damaging the crankshaft when he
> drives the front pulley 
> on. Never heard of ithappening myself.
> 
> What's your thoughts?
> 
> John Hall 
> 
> 
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> 


Andy Glines
Evansville, IN

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