[AJD] 40 vs. 'M' Engine Block

[greg at theoldtractorcompany.com]

I can vouch for the M/40 head differences. Years ago when I bought an M with a physically 
broken block I assumed I had no problems as I had parts from a 40. Wrong. Finally was 
unbelievably lucky when a good friend of mine, twenty miles away yet, had the exact same 
problem in reverse. What he needed I had and what he needed I had so all's well that ends well
Greg


Greg Stephen
The Old Tractor Company
Stephen Equipment Company
PO Box 709
Franktown, CO 80116
303-663-5246
303-468-0377 FAX<<--GREAT WAY TO REACH ME!

On Mon Jun  6  8:29 , David Smith <gulfwashing at yahoo.com> sent:

>thanks for the info. Bus Driver.  I just borrowed my buddies '40' manual and in comparing it 
to my 'M' manual, you hit it right on.  There a few internal parts that are the same, but other 
than that crank, rods, and even the head have different numbers.
> 
>David
>
>Bus Driver mpmbd at yadtel.net> wrote:
>All the M64 T blocks are identical. Parts catalogs show a successor number
>which I assume is also interchangeable. But many internal parts are
>different from the M and 40. A parts catalog for each tractor will be
>invaluable in determining the parts that are different. In the absence of
>that, just assume that the bare blocks are where identical ends.
>----- Original Message ----- 
>From: "David Smith" 
>To: "Antique John Deere mailing list"
>
>Sent: Thursday, June 02, 2005 8:34 PM
>Subject: [AJD] 40 vs. 'M' Engine Block
>
>
>>
>> I am looking at buying a 40 Standard. The engine block has a crack in it.
>Does anyone know the cast number of the block for a 40? My 'M' has 64T cast
>on it. I know that both tractors have a 4" bore. Has anyone compared the
>two engines? I have found a spare block for an 'M' locally.
>>
>> Thanks for any help.
>>
>> David
>>
>> NC
>>
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