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Cadet 126 - pulley on crank wobbly

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mikus

07-01-2004 14:56:18

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Hello, looking for help, am a newbie. I have a Cadet 126, the main shaft pulley that runs the belt to the alternator has some play (1/8" ?) on the shaft and wobbles when my clutch is engaged (and a little when disengaged). But I see no metal shavings or obvious damage. Is the pulley supposed to have play? Any tips on finding the bearing/pulley if need be?

my email is vinyl45(AT)hotmail.com <--spamproofed

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Dr.EVIL

07-02-2004 08:14:37

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Re: Cadet 126 - pulley on crank wobbly in reply to mikus, 07-01-2004 14:56:18

Either Your pulley & fluted PTO clutch drive cone are loose from the hub of the pulley or the hub & key have worn the keyway in the crankshaft. If the pulley/cone is loose on the pulley hub a couple tack welds will fix the situation with the pulley removed from the tractor. If the hub has worn the crankshaft/keyway it's MUCH more complicated. Welding the crank could be required or cutting another keyway in the crankshaft. Neither should be done with the crankshaft installed in the engine. If the pulley just wobbles back & forth when the engine runs the pulley is probably just bent from trying to be removed years ago. If just the PTO pulley wobbles it probablty means the pilot bearing the PTO clutch assembly rides on is SHOT! OR the setscrews that hold the clutch to the pilot bearing are WAY too loose. There's three holes with allen head setscrews on the rear portion of the PTO pulley. And there's TWO setscrews in each hole, SIX total. They must be returned into the holes in the proper order. Do a search for the Frequently Asked Questions on ihcubcadet.com to find a lower cost sealed ball bearing from NAPA. The bearing from Cub Cadet is kinda expensive.

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RPM

07-02-2004 11:19:50

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Re: Re: Cadet 126 - pulley on crank wobbly in reply to Dr.EVIL, 07-02-2004 08:14:37

Hey you know your Cadets quirks, the bearing is good old 586609R91 IH part.

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Gene

07-01-2004 22:17:05

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Re: Cadet 126 - pulley on crank wobbly in reply to mikus, 07-01-2004 14:56:18

Pulley is not supposed to wobble.

Parts are available at the Cub Dealer, Look in the yellow pages. You will need the model and serial number off the tractor to obtain the parts kit to rebuild the clutch, if needed.

You might check to see if the set screws are tight. There are three sets of set screws holding the pulley on. Mine had two set screws per hole.

If the set screws are not loose. You need to remove the front grill to get at the clutch/pulley. Kind of a pain to get to the clutch/pulley.

I think about $35.00 to $40.00 for new clutch parts kit. There is not much that can go wrong with the pulley itself.

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