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John Deere Tractors Discussion Forum
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clutch pulley bushing

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Ken C.

08-15-2004 21:52:09




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Need to change bushing in clutch pulley on a 52 G and deere says it is not available anymore, this is the big bushing that runs on crankshaft. Anyone know where to look for this bushing, or a way to make one, any info is appreciated, Ken.




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Earl S.

08-16-2004 17:44:47




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 Re: clutch pulley bushing in reply to Ken C., 08-15-2004 21:52:09  
Ken ,Has your crankshaft been reground on the mains? Email if it has. Earl S.



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Paul Lawrence

08-16-2004 10:23:43




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 Re: clutch pulley bushing in reply to Ken C., 08-15-2004 21:52:09  
I have one of the bronze bushings I got for my '47 G. I ended up with two of them. This one I have has a few dings on it,don't look like it has been used.Will take $ 25.00 plus shipping for it.If you are interested let me know.
Paul



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Clooney

08-16-2004 04:11:36




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 Re: clutch pulley bushing in reply to Ken C., 08-15-2004 21:52:09  
Ken, try Kent @ K & K [ (317) 398-9883] they might have one or at least know where to get one.. Another place to try is Greg Stephen [303-688-3151]�

You might have your dealer try the dealer parts locator network to see if anyone still has one in stock [sometimes it will surprise you]..

I usually make my own on the lathe as I usually custom fit them due to crankshaft wear so haven�t been shopping for that bushing for quite a few years..


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Ken C.

08-16-2004 20:38:05




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 Re: clutch pulley bushing in reply to Clooney, 08-16-2004 04:11:36  
Thanks for the help Clooney. What would a little slack in this bushing do as for as problems if i just run it like it is.



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Mike M

08-16-2004 05:50:18




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 Re: clutch pulley bushing in reply to Clooney, 08-16-2004 04:11:36  
Clooney; What material do you make them out of,and what have you found to be the best amount of clearance for fit ? I never did like those factory replacement presized bushings as they were always too loose.They seem to make them bigger than specs. where published.



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GPWT

08-16-2004 09:57:48




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 Re: clutch pulley bushing in reply to Mike M, 08-16-2004 05:50:18  
Clooney gave some good advise on fitting the bushing. As to the material, I would make it from SAE #660 bearing bronze. I think you can get this from McMaster Carr in small quantities.



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Clooney

08-16-2004 06:49:13




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 Re: clutch pulley bushing in reply to Mike M, 08-16-2004 05:50:18  
Mike, I just use standard old brass round stock [don"t have the material number handy but can look it up if you need it].. As far as the fit goes I mike the crank & size the bushing for about a .003" press fit in the pulley with about a crank size or just slightly smaller ID when pressed in, then hone to size for a just slide on fit on the crankshaft.. If that bushing is sized correctly it helps cover up a slightly loose outer roller bearing.. Those factory bushings are made [probably by an outside job shop] to fit the crank even after being pressed in so do end up on the loose side,, then when you factor in a slightly worn crankshaft they are pretty loose at times.. I was in a hurry a few year ago & bought a Deere bushing & after installation it was looser than the worn original [had to take the time & make one anyhow].. I run into the same problem with the diesel transfer pump pistons,, most times the Deere replacement is smaller than the worn original so have to make my own there also..

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Mike M

08-16-2004 10:14:49




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 Re: clutch pulley bushing in reply to Clooney, 08-16-2004 06:49:13  
Don't bother looking up that number as I am not working on one now. Thanks for the info. I was just worried that if I make one to fit on there nice it may be too tight. I bought a variator center section for a 110 mower because I followed the book and it measured over spec. The new one was over spec. too. I don't know why they would make parts this way ?



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Clooney

08-16-2004 10:58:29




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 Re: clutch pulley bushing in reply to Mike M, 08-16-2004 10:14:49  
Mike, I can�t comment on the variator but in my experience Deere has turned a lot of the older replacement parts over to outside job shops & some aftermarket vendors... What seems to be happening is there doesn�t seem to be much Deere quality control & most of those outside job shops will try to slide anything through rather than toss it out.. Most people that buy replacement parts from Deere for the old equipment don�t have a good way of measuring the new parts anyhow so just take them & install them.. What seems to be happening [at least in some of the parts I have worked with] is the parts supplier tries to use existing standard materials to save machining time & if for instance they are using a round stock to make pump pistons from & that stock runs to the small side of nominal they just go ahead & use it as is.. Min spec on replacement parts doesn�t get it in my book when working on worn out old tractors.. I end up making a lot of the parts myself so I can control the size & fit.. This doesn�t seem to be the case with NOS Deere parts as the original parts were made at Deere facilities & were pretty darn good.. There are still some good Deere parts being sold but they probably come from some of the better aftermarket vendors or are left over original stock..

Just my $.002 on this subject.. Take that for what you paid for it..

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Mike M

08-16-2004 12:22:45




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 Re: clutch pulley bushing in reply to Clooney, 08-16-2004 10:58:29  
That sounds like a bargin for good advice. Compared to the $80.00 or $100.00 that new part cost that wasn't any better than my old one.



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Carl

08-16-2004 11:54:53




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 Re: clutch pulley bushing in reply to Clooney, 08-16-2004 10:58:29  
A lathe is a wonderful thing, especially when restoring(or just trying to keep running)old stuff like tractors.



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Mike M

08-16-2004 12:26:27




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 Re: clutch pulley bushing in reply to Carl, 08-16-2004 11:54:53  
Yes I couldn't get along without mine after having one. Same with a torch outfit.



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