How do I take off a Crank Pully on a 1944 Farmall Cub?

Moriah Bradley · Mar 20, 2009

Im rebuilding my Farmall and im stuck on how to take the Crank Pully off. There are no nuts or bolts. (that i can see) Please help. Thank you

Andrew Z · Mar 20, 2009

you need to heat the pulley up with a rose bud or something along that nature. Then use a bearing puller (clamshell puller) to pull it off. There has been many photos of this over the years, look in the archives and youll find them.

Andrew

Bigdog · Mar 20, 2009

It is a friction fit. As Andrew said - use a puller and perhaps a little heat to get it off. Do not pull against the pulley flanges themselves. They will break! Use a bearing splitter or plate behind the pulley to pull against the meatier part of the pulley. It will resist coming off and when it lets go be prepaired for a loud bang.
To re-install, pre-heat the pulley in boiling water. Thread some 1/2" rod into the threads in the end of the crankshaft and use a plate or bar across the face of the pulley to pull it back on.

Incidentally, cubs did not go into production until 1947.

Wild Bill Caldwell · Mar 20, 2009

Birddog, if the Cub pully is built like a Super"A" pully You best not pull against the flange part of the pulley when You are installin' it ...I use a round bar (Short)bigger than the hole in the pully and use that to push against the hub part of the pulley

Bigdog · Mar 20, 2009

I place a flat bar with a hole in it across the face of the pulley. This does not press against the outer part of the flange but on the flat face of the pulley where it is substantial enough.

El Toro · Mar 20, 2009

You need Bigdog's puller with a bearing separator
behind the pulley to make a hard job easy. Hal

Wild Bill Caldwell · Mar 20, 2009

Bigdog, I don't want You to think I was pickin' on You, A friend thinks I'm to blame for the pully flange on His "A" breakin' when He pulled it back on

MM_TX · Mar 20, 2009

I just pulled mine with a 1/2" plate I made & a jack. I used 5/8 all thread. It strained my 12 ton jack some & then popped right off. I still have to change the front cover & put it back on.

Here are a couple of links I found helpful.

http://www.farmallcub.com/phpBB2/vi...p=221646&hilit=remove+crank+pully#p221646

http://www.ytmag.com/cgi-bin/viewit.cgi?bd=farmall&th=610566

My 1/2 plate was not as good looking as my drawing. I cut it with thin cutting wheels with a 4" angle grinder, the back cut of the U almost cuts through to the side cuts & a 2 1/2 lb hammer does the rest by beating it back & forth till it breaks (I don't have a torch). Be very careful the cutting wheels will bind & break & jump at you when they do.

Bigdog · Mar 21, 2009

It's OK Wild Bill - I'm used to it! :lol: :lol: :lol:

How do I take off a Crank Pully on a 1944 Farmall Cub?

Moriah Bradley

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Andrew Z

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Bigdog

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Wild Bill Caldwell

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Bigdog

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El Toro

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Wild Bill Caldwell

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MM_TX

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Bigdog

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