Back wheel play

[dancata]

Yes, but if inserted correctly, they live long...

What's one case of failure, if there are like hundreds out there for success?

Nobody comes and say - "I installed X on my bike, and after 30k km everything is ok", but for a failure case... that one is remembered.

 

[Bohsfc]

OK, New bearings are fitted. BUT, (always a but) I don't know if I am been paranoid or not but there appears to be a knocking noise from the driveshaft. I put the bike up on the centre stand and engaged first gear and let the wheel rotate on tick over only and I could hear some knocking in the drive shaft area.
The bike was cold so don't know if that had anything to do with it or not.

I just drove it up and down outside the house and could not hear anything then but that would be due to extra engine noise and so on.

Can the driveshaft go back in wrong and still operate when putting it back in place? If so could I be doing alot of damage?

 

[davegs]

knocking

Solution, E Bay quick!.

 

[Bohsfc]

Solution, E Bay quick!.

Not that desperate

 

[MattW]

They all clunk if you let them run on the stand.

 

[MikeP]

They all clunk if you let them run on the stand.

What he said. There's always some 'lash' in the shaft when not under load.

 

[Bohsfc]

What he said. There's always some 'lash' in the shaft when not under load.

Good to have peace of mind. Thanks.

 

[littleredrooster]

I put the bike up on the centre stand and engaged first gear and let the wheel rotate on tick over only and I could hear some knocking in the drive shaft area.

This is potentially one of the worst things you can do to a bike. The torque reversal forces (due to it being a big twin) as the engine 'pulses' can damage the transmission.

 

[Bohsfc]

This is potentially one of the worst things you can do to a bike. The torque reversal forces (due to it being a big twin) as the engine 'pulses' can damage the transmission.

I knew it was not the best thing to do but figured it was better than been thrown from the bike a hundred yards down the road.

 

[Bohsfc]

I fitted the paralever bearings the other night and thought all was well. But, I took the bike for a short spin last night and after a while I could still feel the 'Puncture type' sway that I was getting prior to doing the bearings. The 3 0' clock 6 0 clock movement is gone from the wheel having changed the bearings so the diagnosis would appear to have been correct so don't know if the sway is just paranoia setting in.
Can anyone tell me if the pivot bearing on the left as you look at the bike from the back should be flush with the 36mm nut when it is on tight? When putting it back in place I tightened the pivot bearing first, as tight as it would go and then tightened the nut over it. If this is in too tight could this possibly cause an inbalance in the drive shaft and cause the 'sway' I am feeling?

 

[MattW]

I fitted the paralever bearings the other night and thought all was well. But, I took the bike for a short spin last night and after a while I could still feel the 'Puncture type' sway that I was getting prior to doing the bearings. The 3 0' clock 6 0 clock movement is gone from the wheel having changed the bearings so the diagnosis would appear to have been correct so don't know if the sway is just paranoia setting in.
Can anyone tell me if the pivot bearing on the left as you look at the bike from the back should be flush with the 36mm nut when it is on tight? When putting it back in place I tightened the pivot bearing first, as tight as it would go and then tightened the nut over it. If this is in too tight could this possibly cause an inbalance in the drive shaft and cause the 'sway' I am feeling?

Do I understand this right - you tightened the adjustable paralever pinion (the one fastened with the locknut) "as tight as it would go"?

If so you've probably f*cked it - it should be tightened very carefully just enough to remove the play before fitting the locknut. Ideally you should have removed all the old loctite and used a torque wrench on it - 7Nm - a really minimal torque.

Do you have a manual / did you read the how to's on here?

 

[Bohsfc]

Do I understand this right - you tightened the adjustable paralever pinion (the one fastened with the locknut) "as tight as it would go"?

If so you've probably f*cked it - it should be tightened very carefully just enough to remove the play before fitting the locknut. Ideally you should have removed all the old loctite and used a torque wrench on it - 7Nm - a really minimal torque.

Do you have a manual / did you read the how to's on here?

Well to use the words 'as tight as it would go' would be incorrect for me to say but tighter than 7nm I would say

Back to taking it apart later I think

 

[MattW]

Well to use the words 'as tight as it would go' would be incorrect for me to say but tighter than 7nm I would say

Back to taking it apart later I think

Yup.
You really could do with getting hold of a manual. In addition to that, if you search on here for 'paralever bearing' you'll find lots of info - this is a good start