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John Deere Tractors Discussion Forum
:

worn crankshaft splines

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bbaro

09-01-2007 19:14:50




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has anybody had any luck with these undersized clutch drivers? Is the best corrective action just to take the crank out and have it repaired? thanks




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Kemper

09-02-2007 06:10:59




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 Re: worn crankshaft splines in reply to bbaro, 09-01-2007 19:14:50  
Before you change out the crank,try a new driver first,i have an old A that the driver was even with the end of the crank,bought a new driver and now it is a good 1/4 inch from the end of the crank when tight.



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Mike M

09-02-2007 05:03:49




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 Re: worn crankshaft splines in reply to bbaro, 09-01-2007 19:14:50  
The udersized clucth drivers "sound" like a good idea. I wish someone did actually make one that IS undersized. I have tried 2 from Denglers so far and both of them measure just the same as another aftermarket I can get alot cheaper ! Same as a good original does too.

Sometimes if not too bad you can one with good splines to work by turning the backside off, like mentioned below.

I have also reused the worn one by fashioning a shim from a tin can formed to fit into the old splines then you assemble it all up with JB weld on part of it to fill the voids.

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bbaro

09-02-2007 09:20:54




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 Re: worn crankshaft splines in reply to Mike M, 09-02-2007 05:03:49  
thanks for the info, this site has always been helpful. i think i will order a standard replacement driver and see how it fits and take it from there.



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RobMD

09-01-2007 20:17:10




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 Re: worn crankshaft splines in reply to bbaro, 09-01-2007 19:14:50  
I've had luck with turning down the innermost side of the clutch driver disk so that it will go on all the way up the worn splines without tightening up against the inner clutch disk. I turned down 3/32 of an inch on a disk with a crank with badly worn splines. Worked like a charm.



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