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Old 10-01-2010, 11:35 AM   #1
meijer's trails OP
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Rear wheel "play" on R80G/S

I read the post about paprlever rear wheel play, but what about mono-lever?

on the centerstand, there is slight play when i grab the rear wheel at 12 o'clock position and pull/push.

as if there were a bad wheelbearing on an old car or something.

maybe 2mm movement.

is there a limit? what's going bad? how difficult is the replacement job?
thanks

jason
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Old 10-01-2010, 12:45 PM   #2
Grider Pirate
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Quote:
Originally Posted by meijer's trails
I read the post about paprlever rear wheel play, but what about mono-lever?

on the centerstand, there is slight play when i grab the rear wheel at 12 o'clock position and pull/push.

as if there were a bad wheelbearing on an old car or something.

maybe 2mm movement.

is there a limit? what's going bad? how difficult is the replacement job?
thanks

jason
The limit is ZERO. Drain the FD and carefully inspect the drained gear lube. It is not unlikely you will find small flakes of metal. Sorry to hear you have this problem. BTDT on my '88 R100RS
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Old 10-01-2010, 12:54 PM   #3
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2mm is a little too much. I found similar play, though not as much, last fall before leaving for 9 months on the road. I panicked and took it too the local dealership as well as an independent BMW-only wrench. Both said a LITTLE bit of play is pretty normal. That had flown completely in the face of what I'd heard, but I trusted them and left on my trip. On my way down to south america I stopped in San Diego at a BMW dealership and got one last opinion. Same thing. A LITTLE play is normal and no need for concern. 25,000 miles later and there's still just a LITTLE play. No more or less than when I left. No metal flakes in the final drive oil. I think the service limit is 1.0mm at the rim. The play on mine can only be felt at the 12 and 6 o'clock positions. Grab it at 9 and 3 and there's no play on mine.
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Old 10-01-2010, 12:59 PM   #4
Mark Manley
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Check this out asap, I had a little play which I ignored and it eventually chewed up the casting. The pleasant surprise was the price of a new bevel box, I was quoted 250 for new bearings and shimming and an entire box was just under 500,that was 5 years ago now.
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Old 10-01-2010, 05:23 PM   #5
The Raven
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I have a bit of play too...but in 5000 miles it hasn't changed, I have no leaks and no flakes in the oil. Always worried about it though...and not sure what to do it it is an issue.
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Old 10-01-2010, 06:24 PM   #6
ozmoses
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as per the riders manual, 0.3mm is allowable at wheel flange...
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Old 10-01-2010, 07:23 PM   #7
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Early G/S have a needle bearing at the right side of the RDU instead of the tapered needle bearing used later (1983?). The earlier bikes almost uniformly developed a bit of play in the rear wheel, and it is nothing to worry about.

It's interesting that the new-gen bikes have gone back to a straight roller- bearing on the right.
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Old 10-01-2010, 08:21 PM   #8
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Quote:
Originally Posted by bmwrench
Early G/S have a needle bearing at the right side of the RDU instead of the tapered needle bearing used later (1983?). The earlier bikes almost uniformly developed a bit of play in the rear wheel, and it is nothing to worry about.

It's interesting that the new-gen bikes have gone back to a straight roller- bearing on the right.
I stand corrected. A little bit of play is understandable with a needle bearing on the right side. Which 'new-gen' bikes have a straight roller on the right? I can find only tapered rollers on the half dozen models I checked.
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Old 10-02-2010, 04:32 AM   #9
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Quote:
Originally Posted by bmwrench
Early G/S have a needle bearing at the right side of the RDU instead of the tapered needle bearing used later (1983?). The earlier bikes almost uniformly developed a bit of play in the rear wheel, and it is nothing to worry about.

It's interesting that the new-gen bikes have gone back to a straight roller- bearing on the right.
good to know...I have an 81. Having owned a 1100gs with a potential for FD failure then having a shock blow out putting oil in bad places...combined with a tiny bit of play i did have a scare once
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Old 10-02-2010, 05:06 AM   #10
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Quote:
Originally Posted by Grider Pirate
I stand corrected. A little bit of play is understandable with a needle bearing on the right side. Which 'new-gen' bikes have a straight roller on the right? I can find only tapered rollers on the half dozen models I checked.
All the R1200s (except the R1200C) and "slant four" Ks
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