Cub crank pulley

Anonymous-0 · May 1, 2009

I've pulled/pushed my share of tough/stuck parts. Nothing I can remember was as hard to get off as the front pulley on my Cub crank. Well, I'm going back together and it's time for the pulley again. I can at least get it warm before trying to get it on but I'm afraid of getting it too warm and damaging the seal due to the heat. Should I just warm it up and get ready with a block of wood and a big hammer?

Andrew Z · May 1, 2009

put the pulley on a wood stove or in a range that will heat it up enough to slip it on. be ready with a block of oak and a 3lbs hammer to finish the last inch or so if needed. as for the seal put a abundant amount of greese on it and it will protect it from the heat.

Andrew

Haas · May 1, 2009

I installed my Cub crank pulley by using the threaded hole in the front end of the crankshaft. Get a length of high strength threaded rod the proper size(Don't use the soft stuff they have at home Depot or Lowes. Go to a fastener store and get the strong stuff) Screw the rod into the end of the crank shaft. Make sure the pulley is lined up with the key, put a heavy washer and nut on the rod and pull the pulley onto the crank. I can't recall exactly, but I may have used a spacer to help bear on the pulley. I also made a heavy washer out of 3/8 thick steel. I warmed my pulley some, but not enough to harm the seal. The seal should be able to stand at least 200 F, as the engine gets that hot or hotter when running. If you have trouble with the engine turning as you are screwing down the threaded rod, then put the tractor in gear and set the brakes to hold things.

Anonymous-0 · May 1, 2009

Forgot to say, put antiseize lube on the threaded rod and on the crankshaft where the pulley goes to make it easier to slide on. A little dressing up with 400 grit paper to take off any burrs is a good idea too.

the tractor vet · May 1, 2009

One thing that nobody said anything about is getting a thrust bearing to place against the plate . Once you use a thrust bearing for a puller or pusher you will never go back to a couple washer . For you guys that build your homemade sleeve pullers a few bucks spent on a ball bearing thrust bearing Is well worth the time of finding it and the money spent on it .

Andy Martin · May 1, 2009

They are surprisingly cheap, too, either ball or needle bearing thrust bearings.

When you go to a fastener store, if they have B7 studs, they are high strength and cheap. I used a 36-inch 1-1/2 stud for my puller and was pleased at how cheap the stud, nuts, hard washers, and thrust bearings were.

Cub crank pulley

Anonymous-0

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Andrew Z

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Haas

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Anonymous-0

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the tractor vet

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Andy Martin

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