[SEL] OT IH M tractor question for a friend

[Robert L. Holtzer]

On 4/27/2011 7:48 PM, Bill Dickerson wrote:
> Apparently no one here knows about M and super M tractors..........
> OK, I'll have this fellow check into some forums for tractors. Just thought
> someone here might know tractors but suspect most of those folks have moved
> on.
>
> Bill
>
> -----Original Message-----
> From: sel-bounces at lists.stationary-engine.com
> [mailto:sel-bounces at lists.stationary-engine.com] On Behalf Of Best, George
> (DS)
> Sent: Tuesday, April 26, 2011 11:36 AM
> To: The SEL email discussion list
> Subject: Re: [SEL] OT IH M tractor question for a friend
>
> Bill,
>
> The Super M is super as it had 47hp on the belt, while the regular M only
> had 36hp.
>
> They may have the same basic engine, but apparently there were hp producing
> changes for the Super M.
>
> George
>
> -----Original Message-----
> From: sel-bounces at lists.stationary-engine.com
> [mailto:sel-bounces at lists.stationary-engine.com] On Behalf Of
> bill at antique-engines.com
> Sent: Tuesday, April 26, 2011 8:56 AM
> To: The SEL email discussion list
> Subject: [SEL] OT IH M tractor question for a friend
>
> I got this from our car forum, a friend is asking...... any M and Super M
> experts here??
>
> Hey Guys, I hauled a '53 Farmall Super M home last weekend. It has been
> sitting unused for about 30 years and the engine, of course, is seized. I
> have found a running engine but it is from a regular M tractor. I've
> searched online and I'm fairly certain the engines are the same. The only
> exception is, the Super M has a live hydraulic pump in with the
> distributor drive and the regular M does not. A regular M has the
> hydrualic pump mounted under the belly of the tractor back on the
> transmission. I'm wondering if the live hydraulic pump from the Super M
> can be mounted on the distributor drive section of the regular M engine?
> I'm hoping there is a Farmall M expert here that can help me out. The
> engine I'm looking to buy is super cheap for a running tractor engine and
> if it will work on my Super M like normal I want to buy it as quickly as
> possible before someone else does. Knowing if the hydraulic pump will bolt
> to the M engine is the only thing keeping me from buying it.
>
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The Super M had 1/8" larger bore.  Displacement 264 vs 247 regular M.  
The M I rebuilt had a lot of time on the engine.  Interestingly the 
small end of the rods were somewhat oblong -- apparently due to the 
heavy cast iron pistons used.  Good solid engine at any rate!

Bob Holtzer