Clutch basket wobble

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ILLF8ED

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My clutch basket is not very solid with respect to the gearbox output shaft - wobbles. The clutch center on the other hand is nice and solid. The only thing keeping the basket in place is the bearing and that's fairly new. I expect this is normal, but has anyone found a way to resolve this - other than paying way too much for a belt drive?
 
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How would a belt drive reduce the wobble, thought they used the same bearing but with seals, you can get a tighter internal tolerance bearing eg a C2 or C1 instead of CN but this has the potential to heatup and sieze but it may work.
 

L.A.B.

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kommando said:
you can get a tighter internal tolerance bearing eg a C2 or C1 instead of CN but this has the potential to heatup and sieze but it may work.

The standard 06-0750 clutch bearing should be a "deep groove, one dot" (C2?) tighter clearance bearing. As the basket will wobble if a standard (CN) bearing is fitted.


A previous thread on this subject, here: clutch-basket-play-and-gearbox-problems-mk3-t1629.html
 

ILLF8ED

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L.A.B. said:
kommando said:
you can get a tighter internal tolerance bearing eg a C2 or C1 instead of CN but this has the potential to heatup and sieze but it may work.

The standard 06-0750 clutch bearing should be a "deep groove, one dot" (C2?) tighter clearance bearing. As the basket will wobble if a standard (CN) bearing is fitted.


A previous thread on this subject, here: clutch-basket-play-and-gearbox-problems-mk3-t1629.html

L.A.B.

Thanks for the previous string. I'm going to assume the "wobble" is normal and disregard it. Also will assume when I bought a clutch center bearing p/n 060750 from Rabers it was the correct part - in Bob I trust.

Regards,
 
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I had a similar problem with my '74 850. I tried several solutions including switching out the clutch basket but nothing reduced the problem. The culprit turned out to be the shaft circlip behind the clutch basket. It was deformed due to torquing nut to 70 ft lbs (it's what the book said). I solved the problem by installing a new circlip and slowing tightening the shaft nut. I checked wobble several times by starting engine with outer primary cover removed. Finally settled on a compromise torque of about 50 ft lbs. It still doesn't run quite as true as my '72 750 but it's good enough.

mechanic matt
'72 750 de-Combat
'73 850
'74 850
 
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