[AT] A vs. Super A engine internals To swap or not to swap

Sat May 28 19:20:17 PDT 2011

Al,

You've probably said in an earlier post but if so I missed it - are you
installing an overhaul kit in your' 39/40 A; i.e., the 3-1/8" pistons, the
thin sleeves, etc?  Aren't the same kits sold for the A and SA?  If the
aftermarket Mains are the same for the A and SA Cranks I would suspect the
Cranks are interchangeable - most likely not the same since the part
numbers are different but interchangeable.  For example, the Camshafts in
the M/SM's and 400's are interchangeable but not the same (different part
numbers) - the 400 Camshaft is more aggressive than the M/SM and is highly
sought after by those overhauling SM's. I suspect the SA Crank is backward
compatible with the A but, while the A Crank might fit in the SA, you
might not want to do it as there may be some desirable feature in the SA
Crank that is not in the A Crank ... don't know for sure just rambling out
loud -

Dudley

> Might not be such a good find if you saw it!
>
> Al
>
>
> -----Original Message-----
>>From: charlie hill <charliehill at embarqmail.com>
>>Sent: May 28, 2011 4:40 PM
>>To: Antique tractor email discussion group <at at lists.antique-tractor.com>
>>Subject: Re: [AT] A vs. Super A engine internals To swap or not to swap
>>
>>Good find.  That's not too far at all.  Well it's not close but not far
>>enough to seem like a journey.
>>
>>Charlie
>>
>>-----Original Message-----
>>From: Al Jones
>>Sent: Saturday, May 28, 2011 4:22 PM
>>To: Antique tractor email discussion group
>>Subject: Re: [AT] A vs. Super A engine internals To swap or not to swap
>>
>>Randolph, Va. About 2 hrs the other side of Raleigh, past Oxford.
>>
>>I was there a few Saturdays before, when the bad tornados came through,
>> at a
>>Cubfest the owner hosted.  He went to an auction a couple weeks ago and
>> it
>>"followed him home."  His main interest is Cubs so I took it off his
>> hands!
>>
>>Al
>>
>>
>>-----Original Message-----
>>>From: charlie hill <charliehill at embarqmail.com>
>>>Sent: May 28, 2011 1:04 PM
>>>To: Antique tractor email discussion group
>>> <at at lists.antique-tractor.com>
>>>Subject: Re: [AT] A vs. Super A engine internals To swap or not to swap
>>>
>>>Did you find it local or did it require a long ride home?
>>>
>>>Charlie
>>>
>>>-----Original Message-----
>>>From: Al Jones
>>>Sent: Saturday, May 28, 2011 12:23 PM
>>>To: Antique tractor email discussion group
>>>Subject: Re: [AT] A vs. Super A engine internals To swap or not to swap
>>>
>>>Charlie,
>>>
>>>I feel lucky to find it.  It ain't pretty but it has potential.  The
>>> Super
>>>A's are the rare-est of the white demo's.
>>>
>>>Al
>>>
>>>
>>>-----Original Message-----
>>>>From: charlie hill <charliehill at embarqmail.com>
>>>>Sent: May 28, 2011 11:09 AM
>>>>To: Antique tractor email discussion group
>>>> <at at lists.antique-tractor.com>
>>>>Subject: Re: [AT] A vs. Super A engine internals To swap or not to swap
>>>>
>>>>Al,  I can't answer your questions but congrats on finding the Super A
>>>>white
>>>>demo.  Not many of those around!
>>>>
>>>>Charlie
>>>>
>>>>-----Original Message-----
>>>>From: Al Jones
>>>>Sent: Saturday, May 28, 2011 9:04 AM
>>>>To: Antique tractor email discussion group ;
>>>>farmall at lists.antique-tractor.com
>>>>Subject: [AT] A vs. Super A engine internals To swap or not to swap
>>>>
>>>>
>>>>So I just got this 1950 Super A white demo. And I also have a late '39
>>>>Farmall A (some books call it an early '40) that I have been working
>>>> on.
>>>>The
>>>>crankshaft, sleeves, and pistons have been installed, the rods just
>>>> have
>>>>to
>>>>be bolted to the crankshaft. Main bearings have been torqued to spec.
>>>>
>>>>I never had intentions of keeping this A once it was done. Figured I
>>>> would
>>>>sell it. Also figured since it was just a straight A, no hydraulics, no
>>>>nothin, I probably wouldn't make back what I have spent on it. It has
>>>> no
>>>>hole in the bell housing for the starter, but the bad thing is it
>>>>apparently
>>>>got a "service engine" from IH at some point--block is a '42 by the
>>>>casting
>>>>code and there is no serial number on it. Either way, the engine is not
>>>>"original."
>>>>
>>>>So I have started thinking, the white demo is a "bucket list" tractor
>>>> for
>>>>me. And, I'm on a serious budget these days. So why couldn't I take the
>>>>overhaul kit I have for the A, and use it for the Super A? Only
>>>> sticking
>>>>point is the crankshaft has a totally different part number according
>>>> to
>>>>the
>>>>caseIH website. I haven't had time to check my first edition Super A
>>>> parts
>>>>book against that to see if the early Super A's might be the same. But
>>>>what
>>>>in the world would be different between the crankshafts between these
>>>> two
>>>>tractors? Regardless, I am thinking I can use everything in the
>>>> overhaul
>>>>kit--provided the crankshaft journals are turned to the same
>>>> measurement
>>>>as
>>>>in the A. The kit came from the local parts store, it's a Tisco kit but
>>>>according to their website it works for all the A/B/C series tractors.
>>>>Only
>>>>thing I would need is new o-rings for the sleeves, and transfer the
>>>>pistons
>>>>over to the Super A rods.
>>>>
>>>>If I did this, I see myself parting the A. It has a nice .20" ground
>>>>crank,
>>>>(assuming it won't work in the Super A)overhauled cylinder head, and
>>>>fairly
>>>>nice sheet metal. The block has been through the machine shop--cleaned
>>>> and
>>>>fluxed--so it would be nice. The grille is not correct for the early
>>>> dzus
>>>>fasteners, so I would probably keep that for my Super A. I have always
>>>>heard
>>>>that "the sum of the parts is worth more than the whole," and I feel
>>>> like
>>>>early A parts would be worth a little more, but who knows?
>>>>
>>>>Am I missing something? Doing a overhaul kit swap seems way too simple.
>>>> I
>>>>hope I'm not talking out of turn.....I am hoping maybe to get her
>>>> running
>>>>this weekend, and maybe the engine will be in real good shape and won't
>>>>need
>>>>overhauling more than maybe rings.  Usually that's not how my luck runs
>>>>though!
>>>>
>>>>thanks,
>>>>Al
>>>>_______________________________________________
>>>>AT mailing list
>>>>http://www.antique-tractor.com/mailman/listinfo/at
>>>>
>>>>_______________________________________________
>>>>AT mailing list
>>>>http://www.antique-tractor.com/mailman/listinfo/at
>>>
>>>_______________________________________________
>>>AT mailing list
>>>http://www.antique-tractor.com/mailman/listinfo/at
>>>
>>>_______________________________________________
>>>AT mailing list
>>>http://www.antique-tractor.com/mailman/listinfo/at
>>
>>_______________________________________________
>>AT mailing list
>>http://www.antique-tractor.com/mailman/listinfo/at
>>
>>_______________________________________________
>>AT mailing list
>>http://www.antique-tractor.com/mailman/listinfo/at
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at
>