Model A crankshaft

MikinInd · Jul 25, 2015

Is there any difference in the crankshaft for a model A from a all fuel vs a gas tractor? I have a 44 with bad splines on the crank and may have found a replacement.

ndbjda · Jul 25, 2015

1940 to March 1947 all cranks 6.75, all the same.

MikinInd · Jul 25, 2015

Does a later model A crankshaft also these years?

Only reason I ask is a prior owner of this tractor installed all gas only parts and may have even went so far as to install a later crank if it fits. Is there a different casting number to look for if so?

Drew · Jul 25, 2015

A 1944 A uses a A2360R crankshaft, and a late A gas tractor uses a A3322R crankshaft. The flywheel end is what is different between them. You could mess around enough to make the later crank "work" in a 1944 A, but a good 2360 shaft isn't hart to find or that expensive.

gtx1967jewison · Jul 27, 2015

Late A that is being referred to is 48 & newer. 40-47
are all the same. Only parts different in the engine
for gas one are manifold, pistons (compression) &
the nozzle in the carburetor

Pete in MD · Jul 27, 2015

The change from Early to Late styled A's was made during the '47 model year so there are both Early and Late '47 A's. The same is true for B's also.

Model A crankshaft

MikinInd

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ndbjda

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Pete in MD

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