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Re: Crankshaft splines options

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Author  [Modern View]

02-25-2013 13:14:04

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Don't know about the B's but the R's 820's etc. are all a tapered spline on the clutch driver assembly. I would GUESS... that you should be able to come home with the splines you have but it would reposition your driver by whatever amount you're worn. If the tapered pair won't come home and lock up you need to see what is causing them to not go all the way home. Could be that a slight counter bore on the driver might allow the pair to smack up tight. Then you'd need to look at the assembly and see what effect that slighly different home point might cause for other components.
For example it might have the driver running into the main bearing housing? Might need to dust the face and run the seal bore in a bit? I really doubt it'd move that far and would guess you'd be fine.
The other option for a "once in a while" tractor... Would be to make shims for one side of each spline with bent tabs at the bolt down end. (To try to help them from being completely sucked in when tightening) Start the driver on loose... Stuff thin beer can shims along one side / same side of each tooth.... shims cut tapered so they don't hit the root (small diameter at the crank direction of the spline) of the splines... then run it home. Shim is a wonderful thing... !!

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