Rear wheel bearing 1250 gs

[B15ape1981]

Evening chaps,

Had my bike m.o.t'd today and one of the advisorys was a little play in the rear wheel, got home checked it and bugger me there is....only small but its there.
Anyone had any experience with this fitting etc?
Had a look in my Haynes manual and it says 'dismantling and set up of the final drive requires special tools and is beyond the scope of the manual'

Didn't expect that

Any advice welcome before BMW want to rim me!!

Thanks Andy

 

[Santa-2512]

Some play in the rear hub bearing is permissable if I recall, for some reason 1mm springs to mind, I may be wrong though

 

[TBates]

BMW would say 1mm is within tolerance. I had my hex-head serviced by Motoscot (very respected independent) and he said there shouldn’t be any play. If there is it will only get worse with time.


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[B15ape1981]

BMW would say 1mm is within tolerance. I had my hex-head serviced by Motoscot (very respected independent) and he said there shouldn’t be any play. If there is it will only get worse with time.


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Yeh thats my of thinking tbh

 

[DJ123]

Evening chaps,

Had my bike m.o.t'd today and one of the advisorys was a little play in the rear wheel, got home checked it and bugger me there is....only small but its there.
Anyone had any experience with this fitting etc?
Had a look in my Haynes manual and it says 'dismantling and set up of the final drive requires special tools and is beyond the scope of the manual'

Didn't expect that

Any advice welcome before BMW want to rim me!!

Thanks Andy

i believe @mikeyboy can refresh the final drive unit.

 

[Santa-2512]

i believe @mikeyboy can refresh the final drive unit.

I thought they later units were meant to be trouble free

 

[DJ123]

I thought they later units were meant to be trouble free

I believe they are less trouble/more maintenance free. And if they do fail they don't fall apart (wheel falls off) like the previous variation.

That's what i've read/picked up on. I've not experienced it myself.

 

[B15ape1981]

Thanks for all the replies gents

On closer inspection today ive found the movements coming from the lower pin bearings (that connect the final drive to the swing arm) so all in all pretty happy as its a pretty straight forward fix

 

[autogs]

Thanks for all the replies gents

On closer inspection today ive found the movements coming from the lower pin bearings (that connect the final drive to the swing arm) so all in all pretty happy as its a pretty straight forward fix

Great mot test that was!

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[jefformston]

Great mot test that was!

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I had an MOT tester diagnose worn front wheel bearings on my R1150GS in 2005, they are still there 20 years and 60,000+ miles later. Sometimes the testers aren’t as skilled & knowledgeable as they should be.

 

[B15ape1981]

Great mot test that was!

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It was to be fair as the bike passed

Pretty sure as a tester there jobs to determine if the bike is safe enough to ride....not to start diagnosing exact problems

 

[autogs]

If he advised wheel bearing he should be confident of his findings, if he wasn't sure he should have looked further?
Suppose on his "expert"findings you had the wheel bearing replaced ?
The play would still be there,would you be happy?
If he was unsure rather than guess he should not have put the advisory on the paperwork and instead had a chat with you advising further investigation needed. As a bike mot tester thats what I would have done.
Some people are not mechanically minded and use the mot as a guide to their bikes condition so sloppy advisories could be costly.
All imo obviously.

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[B15ape1981]

If he advised wheel bearing he should be confident of his findings, if he wasn't sure he should have looked further?
Suppose on his "expert"findings you had the wheel bearing replaced ?
The play would still be there,would you be happy?
If he was unsure rather than guess he should not have put the advisory on the paperwork and instead had a chat with you advising further investigation needed. As a bike mot tester thats what I would have done.
Some people are not mechanically minded and use the mot as a guide to their bikes condition so sloppy advisories could be costly.
All imo obviously.

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He did'nt advise a wheel bearing...the advisory was a little play in the rear wheel.

I do sort of get where your coming from autogs but you must understand as a tester it isn't their job to determine exactly whats causing the problem, as a tester their to determine if its a pass or a fail period.

Funnily enough i know the tester and let me tell you he's as mechanically minded as they come.....he owns 30 plus bikes ageing from 1915 right up to all our now modern bikes. Hes a very knowledgeable guy

Now after the m.o.t hed go to town on anything youd ask him, hes that sort of guy....