[Farmall] 100 breaking crankshafts

[John Hall]

Supposedly the guy was cultivating--shouldn't have hurt anything---but then 
again I wasn't there to tell you if he was using it like it should have 
been. I hope I get to hear how this one turns out.

John

----- Original Message ----- 
From: "George Willer" <gwill at toast.net>
To: "'Farmall/IHC mailing list'" <farmall at lists.antique-tractor.com>
Sent: Sunday, April 30, 2006 8:51 AM
Subject: RE: [Farmall] 100 breaking crankshafts


> John,
>
> It's my understanding that the bearing caps can be milled down slightly 
> and
> then torqued back up before the assembly is line bored back to original
> size.
>
> The one thing in common with all 3 broken crankshafts is the operator
> working the engine at low RPM.  That's a no-no.  I think that is the 
> cause.
>
> George Willer
>
>> -----Original Message-----
>> From: farmall-bounces at lists.antique-tractor.com [mailto:farmall-
>> bounces at lists.antique-tractor.com] On Behalf Of John Hall
>> Sent: Sunday, April 30, 2006 7:25 AM
>> To: Farmall/IHC mailing list
>> Subject: Re: [Farmall] 100 breaking crankshafts
>>
>> If I ever here the "rest of the  story" on this one I'll be sure to let
>> you
>> guys know. While it may not be proper to drive the pulleys on, I've seen
>> it
>> done too many times without problem. Also seen it done properly using a
>> piece fo threaded rod--my prefered method.  Another reason I doubt that 
>> is
>> the cause is because the 1st shaft broke in the same manner,and the owner
>> hadn't been doing any work on the tractor that I am aware of. Dad
>> reccomended the guy take the engine to the guy that does our machine 
>> work.
>> I'd never use that block until it was checked for alignment thru the
>> mains.
>>
>> Related story--I was working on an F-12 for a guy. I had the pan off for
>> some reason. I looked up and the block had been welded on the inside all
>> around the front main. Wonder how long it was ran after that? Can you 
>> have
>> the block line bored where the mains go? If so do the bearings then have
>> to
>> be custom made?
>>
>> John
>>
>>
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