drive shaft problem - BMW Luxury Touring Community
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Old Jul 23rd, 2011, 5:33 pm
gary45 gary45 is online now
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drive shaft problem

I was looking at a 2002 LT today, with the bike on the centerstand rotating the back wheel heard clunking scraping noise, seems the rear universal is causing this - anyone have experience with this type problem - looks like major expense

Thanks

Gary
Markham, Ontario, Canada

1992 K1100LT
2000 V Star 650 and Velorex sidecar
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  #2  
Old Jul 23rd, 2011, 6:17 pm
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casualemt casualemt is offline
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Re: drive shaft problem

How many miles on the bike? Tire rubbing or caliper dragging? Rear wheel loose? clunking sound while the wheel is rotated in one direction continuously, or just back and forth? Need more info here...
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Old Jul 23rd, 2011, 7:24 pm
gary45 gary45 is online now
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Re: drive shaft problem

it does it both directions, it's not the caliper or rotor both excellent, rubbing/clunking every 180 degrees, pretty sure it's driveshaft hitting inside tube, no play in rear end, I was looking for date code on tire when I found problem, the wheel on my K11 rotates smoothly/quietly on centerstand (as one would expect) - K12's the same? I've worked on K100s, /2s and my K11 - just want to know if anyone has noticed something like this with a driveshaft failure of some type - not my bike cannot take it apart, was thinking of buying it

US bike 77,000 miles
Gary
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Old Jul 23rd, 2011, 7:53 pm
CharlieVT CharlieVT is offline
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Re: drive shaft problem

Quote:
Originally Posted by gary45
I was looking at a 2002 LT today, with the bike on the centerstand rotating the back wheel heard clunking scraping noise, seems the rear universal is causing this - anyone have experience with this type problem - looks like major expense

Thanks

Gary
Markham, Ontario, Canada

1992 K1100LT
2000 V Star 650 and Velorex sidecar
Actual failure of the U-joint in the driveshaft of the K1200LT is probably very rare, I've never heard of it.
Final drive failures are probably the most common event, and of those failure of the crownwheel bearing is most common. Draining the FD gear lube should give you an indication as there are likely to be bearing retainer pieces.
However, since you seem to think that the problem is located in the driveshaft/swingarm area there are couple of known issues. The drive shaft has a rubber coupling and there have been cases of the rubber coupling failing; however loss to power to the rear is a symptom of this.
I know of one case where someone on installing a final drive failed to seat the input shaft U-joint properly onto the input pinion shaft of the final drive. The bike ran fine for quite a while but ultimately ended up clunking and the U-joint chewed up the insides of the swing arm. You should be able to check for something like this by simply pushing back the rubber boot at the swing arm/final drive junction.

HTH
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Old Jul 23rd, 2011, 8:15 pm
gary45 gary45 is online now
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Re: drive shaft problem

Thanks Charlie - I drove this bike slowly in 1st and did not hear or feel anything - seems very strange - 90 miles away - poorly functioning whizzy brakes - probably best to look elsewhere
Gary
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Old Jul 24th, 2011, 7:14 am
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Boatzo Boatzo is offline
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Re: drive shaft problem

Depending on the price that you can get it for Gary, might be a good deal? The repairs to things in that area aren't a real big deal. My LT had the rubber insert fail early on and the previous owner had it replaced under warranty. No significant damage was done, just some chafing inside the swing arm.
Don't know about the wizzy brakes, my 99 doesn't have servo assist. Could be the brakes just need flushing and bleeding or could be you are just not used to the feel of them. Let us know what you do. There is ample help and knowledge here on this forum and Curtis is a guru with final drives .
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Old Jul 24th, 2011, 8:01 am
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Talking Re: drive shaft problem

Quote:
Originally Posted by CharlieVT
Actual failure of the U-joint in the driveshaft of the K1200LT is probably very rare, I've never heard of it.
Final drive failures are probably the most common event, and of those failure of the crownwheel bearing is most common. Draining the FD gear lube should give you an indication as there are likely to be bearing retainer pieces.
However, since you seem to think that the problem is located in the driveshaft/swingarm area there are couple of known issues. The drive shaft has a rubber coupling and there have been cases of the rubber coupling failing; however loss to power to the rear is a symptom of this.
I know of one case where someone on installing a final drive failed to seat the input shaft U-joint properly onto the input pinion shaft of the final drive. The bike ran fine for quite a while but ultimately ended up clunking and the U-joint chewed up the insides of the swing arm. You should be able to check for something like this by simply pushing back the rubber boot at the swing arm/final drive junction.

HTH

The failure does happen. I had one a couple years ago, with the same symptoms. I posted it here with pics. Change out is pretty straight forward. This time Im doing a check BEFORE it fails. Good luck ride safe. Check under 140k-u joint april 2009

Zeke
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Old Jul 24th, 2011, 10:29 am
gary45 gary45 is online now
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Re: drive shaft problem

Thanks Zeke - that sure looks like the problem, so the point is not drive it until it breaks - I was wondering if the pinion bearing could have faailed but that does not make any sense from the way it feels and acts
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Old Jul 24th, 2011, 12:06 pm
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Zeke Zeke is offline
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Gary;

You're right. BEFORE it breaks. lol. I do all the maintenance but somethings you just don't think of. Live and learn and ride some more. Try and not make the same mistake twice.
Good riding.
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Old Jul 24th, 2011, 2:27 pm
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deanwoolsey deanwoolsey is offline
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Re: drive shaft problem

If your noise is happening at 180 degrees on the wheel its not likely the drive shaft as it turns much faster than the rear wheel due to reduction gearing.
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Old Jul 24th, 2011, 9:00 pm
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jzeiler jzeiler is offline
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Re: drive shaft problem

Another cause is the rear half of the drive shaft is not "set" on the rear drive splines. There is a circlip that must be engaged or it can work its way up the shaft and begin to wobble.
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