Final drive swop R100GS

[Two wheels good]

Hi

Is there any reason why the final drive from an '88 Paralever shouldn't fit a '94 (paralever, obviously)

An unexpected MOT failure - play in the bevel drive (not pivot bearings) -prompts me to make an urgent swop in order to have the bike ready for a trip next week

(BTW no play apparent when the wheel was in the air but when on the ground the play was excessive)

Many thanks
David
PS No, I havent taken the wheel off yet for a closer look yet

 

[avrolancaster]

Same final drive.
Only variation is between the ratio on the R80GS and R100GS

 

[Two wheels good]

Thanks for response

As it turned out the problem was the pivot bearings. - my first suspicion though the MOT tester convinced me otherwise. Once the wheel was off it was obvious.

BTW
The Haynes manual quotes a torque of 150Nm for the fixed (left hand) pivot pin. What would that do to my swinging arm!! A K-series Clymer manual quotes approx 8Nm for the same thing

 

[cookie]

i think you've mixed up the instructions. this is the BMW manual:

 

[Frank Warner]

The Haynes manual quotes a torque of 150Nm for the fixed (left hand) pivot pin. What would that do to my swinging arm!! A K-series Clymer manual quotes approx 8Nm for the same thing

As you gessed - 150 nM is wrong. Use yer head, if you were on the road using teh bikes original spanners - how much torque could you apply?

 

[Two wheels good]

Paralever pivot torque settings

Sure, the Haynes manual is obviously wrong but even Cookies' BWM manual quotes 105Nm! That's the same as the wheel studs!
I settled on 40Nm and the specified Loctite

It's seen me to and from the Stella Alpina via many mountain cols so I think it's safe enough. Now I just need to investigate the slight miss that has developed..

David