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John Deere Tractors Discussion Forum

John Deere Clutch Pully Grooves

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Ken in Kansas

12-28-2003 07:32:37

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Has anyone repaired the grooves in a clutch pully caused by a worn out clutch brake pad? If so, I need some advice. THANKS

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Bob in Illinois

12-29-2003 18:27:58

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Re: John Deere Clutch Pully Grooves in reply to Ken in Kansas, 12-28-2003 07:32:37

As a follow-up to Clooney's remarks,I just performed a rehab on the pulley on a 44 B I'm restoring using a 3" belt sander [with coarse to fine belts].I left the pulley on the tractor and ran the motor,clutch engaged . Worked out fine.

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Duane Larson

12-28-2003 15:16:42

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Re: John Deere Clutch Pully Grooves in reply to Ken in Kansas, 12-28-2003 07:32:37

Ken,
If you aren't going to use it and it is mainly a cosmetic issue, one of the steel-containing epoxies may work - one of the Devcon products for example. But the pulley would have to be cleaned very well - sandblasting the area to be covered would be good as it would also roughen up the surface (after removing from the tractor).

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Mike M

12-28-2003 14:45:24

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Re: John Deere Clutch Pully Grooves in reply to Ken in Kansas, 12-28-2003 07:32:37

I had my 720D pulley remachined at a local machinist it turned out great.

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Clooney

12-28-2003 09:01:16

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Re: John Deere Clutch Pully Grooves in reply to Ken in Kansas, 12-28-2003 07:32:37

Ken, I have done a few over the years [if the grooves weren't too deep to begin with] .. The best way I have found is to chuck the pulley up in a lathe & use a right angle grinder/sander with 60 grit to start with, then 80 grit, then 90, then 120...{it takes a lot of disks as they wear quickly}

~Caution: the crown must be maintained on the pulley or a flat belt won't stay on the pulley.. ALSO, If the grooves are too deep to begin with the pulley will end up too thin on the edges when all done if enough material is removed to remove all the grooves..

~If done slowly & with a good eye & steady hand it will look good when done...

~Make sure to wear eye & breathing protection as it will raise quite a dust storm.. Also the lathe will have to be thoroughly cleaned when done to remove any grinding disk abrasive.. [Not something I would do on my good lathe]...

~While I haven't ever done it I would imagine it could be done by just running the tractor with the clutch engaged & spinning [as long as the clutch pulley is tight enough on the crank so it spins & stays centered]....

[email protected]

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Ken in Kansas

12-28-2003 11:22:53

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Re: Re: John Deere Clutch Pully Grooves in reply to Clooney , 12-28-2003 09:01:16

There is three grooves and the deepest is around 1/16 inch. I don't think I will every run a belt on the pully. For all the work I have done on this tractor, these grooves just bugs me.

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Paul. D.

12-29-2003 08:05:55

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Re: Re: Re: John Deere Clutch Pully Grooves in reply to Ken in Kansas, 12-28-2003 11:22:53

Ken, I have done this with the belt pulley on the tractor with the clutch engaged and it worked well. However, I did not plan on using the belt pulley for driving anything.The grooves in my pulley where also a 1/16" or less.....Paul.

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jdtractortech

12-28-2003 08:21:16

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Re: John Deere Clutch Pully Grooves in reply to Ken in Kansas, 12-28-2003 07:32:37

Hi Ken, It would probably cost you more to fix the grooves than if you found another used pulley. What is the pulley off of? How bad are they?

Dave

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Ken in Kansas

12-28-2003 11:10:20

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Re: Re: John Deere Clutch Pully Grooves in reply to jdtractortech, 12-28-2003 08:21:16

The pully is on a 530. The grooves are not very deep, maybe 1/16 or so.

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