Farmall A Crank Pulley

mrf-engines · Jun 24, 2013

I have been working on rebuilding the engine on a 1942 Farmall A. I ended up having the replace the crank pulley, but the replacement (used from another 1942 A) one is loose on the crankshaft. I put the old one back on to check and it is tight. Is it possible to shim the replacement pulley or do I need to find another one? Thank you.

Janicholson · Jun 24, 2013

Loose is not acceptable. They are usually an interference fit of great difficulty to remove (I have seen 20 ton applied before it gave up a millimeter. If it was a locational fit that was just movable on the shaft, I would drill and tap for a set screw, then grind a flat on the crank, or drill a divot in the crank to accept the crown of a crown point set screw. If loose, a different pulley is best. Jim

gene bender · Jun 25, 2013

Send it back as it needs to be a press fit.

Farmall A Crank Pulley

mrf-engines

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Janicholson

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