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Old 11-25-2008, 04:51 PM   #16
ricohman
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I would be planning on greasing my u-joints far before 58 000 miles.
I wouldn't drive any of my vehicles that far without greasing them.
Since the ones on my F250 are sealed I just replaced them (with greasable ones) at 40 000.
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Old 11-25-2008, 05:41 PM   #17
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all of their new bikes are conspisciously NOT shaft driven. the 800 and 650 GS, the 450x, etc.

Quote:
Originally Posted by Fluorescentbrown
Does BMW have some secret plan to make a shaft drive require as much or more maintenance than a chain? Perhaps they are trying to make the shaft obsolete?
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Old 11-25-2008, 06:12 PM   #18
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Quote:
Originally Posted by uncreative
all of their new bikes are conspisciously NOT shaft driven. the 800 and 650 GS, the 450x, etc.
I don't think anyone would buy a shaftie 450 or 650.
The weight/power penalty would be to much.
However I did have 650 Suzuki that was shaft driven. Reliable but not much snap.
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Old 11-25-2008, 06:23 PM   #19
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Airheads Were

Quote:
Originally Posted by ricohman
I don't think anyone would buy a shaftie 450 or 650.
The weight/power penalty would be to much.
However I did have 650 Suzuki that was shaft driven. Reliable but not much snap.
I believe the airheads were all shaft driven..and had "smaller displacement"


As for replacing sealed u-joints with those with lube fittings...first I don't know if there are u-joints that will fit our bikes that can be lubed...

Secondly sealed u-joints are stronger that those with zerke fittings for lubing them...having said that, I doubt that on our bikes that would make a difference..on my '62 with 414 ft/lbs of torque it does...
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Old 11-25-2008, 07:14 PM   #20
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driveshaft

Welcome to the club. My R100GS is on it's third driveshaft. My first two went at about 38K. Funny how I'm on my 3rd driveshaft and still have my original brakepads. 2HE
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Old 11-25-2008, 07:21 PM   #21
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Quote:
Originally Posted by Twin headlight Ernie
Welcome to the club. My R100GS is on it's third driveshaft. My first two went at about 38K. Funny how I'm on my 3rd driveshaft and still have my original brakepads. 2HE
Ernie, the difference here is that the airhead GS drive shaft has to be replaced every 50,000 km, pretty much an official thing.

I was riding with a buddy on the BRP and his crapped out and locked up the rear wheel (he had slowed down by then) and he had 55,000 km's on it. Hammersley's had the drive shaft in stock it on a Saturday of an Easter weekend.
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Old 11-25-2008, 08:01 PM   #22
JimVonBaden
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Quote:
Originally Posted by Desert Skies
OK everybody, pull them puppies apart and see if they have enough lube in them.

You know BMW put "Lifetime" lube in these parts, just like the early FDs.
The shaft splines on the R1200 have not proven, so far, to be particularly sensitive to lube. The U-joints are sealed and not able to be lubed. They are also not known to be prone to failure.

Jim
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Old 11-25-2008, 09:06 PM   #23
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Duh...ummm, gee professor GS, is dat whut non-serviceable means?
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Old 11-26-2008, 01:32 PM   #24
Wallowa
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Shaft Splines To Be Serviced [lubed]...Not U-Joints

Quote:
Originally Posted by Desert Skies
Duh...ummm, gee professor GS, is dat whut non-serviceable means?
But hey Sky you knew that....
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Old 11-26-2008, 02:48 PM   #25
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Quote:
Originally Posted by Desert Skies
Duh...ummm, gee professor GS, is dat whut non-serviceable means?


Some people need to be told everything!

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Old 11-26-2008, 11:15 PM   #26
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On the driveshaft as a consummable item :

Here's the quote :

http://www.concours.org/3.4.03.forum...TOPIC_ID=39290

"After reading about the drive shaft issues during the past year, especially the February Issue of BMWMOA. The article in a nut shell says that the driveshaft of Paralever design is a "consumable item" by BMWNA and should be replaced every 40,000 miles at a cost of $636. This problem is not remedied through regular maintenance. I believe that most models employ this design now and it could give out at any time around 40,000 ish......."
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Old 11-26-2008, 11:25 PM   #27
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Quote:
Originally Posted by hb7
On the driveshaft as a consummable item :
I think that's the R100GS shaft like Gadgetboy already mentioned. The damper allows it to twist out of alignment. The later oilheads have their own driveshaft issues, mostly the two piece shaft on the 11xx models separates at the rubber damper.
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Old 09-14-2009, 11:46 AM   #28
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Quote:
Originally Posted by hb7
On the driveshaft as a consummable item :

Here's the quote :

http://www.concours.org/3.4.03.forum...TOPIC_ID=39290

"After reading about the drive shaft issues during the past year, especially the February Issue of BMWMOA. The article in a nut shell says that the driveshaft of Paralever design is a "consumable item" by BMWNA and should be replaced every 40,000 miles at a cost of $636. This problem is not remedied through regular maintenance. I believe that most models employ this design now and it could give out at any time around 40,000 ish......."
Would make sense for my 12 Adv. 78k kms and I think it's toast, just waiting for a phone call from the dealer if a loaner is available or not (when you have one of their loaners, they don't put your bike at the bottom of the list).
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Old 09-15-2009, 08:31 PM   #29
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The shaft on the R100GS and R80GS wasn't classed as a consumable item until almost the end of the production run. The G/S models did not suffer the same fate as the shafts ran immersed in oil. The problems started with the paralever. It was less frequent on the R11XX series bikes. Given the number of occurences on the R12GS's and the number sold compared to the failures on the R100GS's and the numbers sold on those models I'd bet to say that the percentage is a hell of a lot lower (Considering that The R12GS series hit a 100 000 units after three years of production while the R11XXGS series total production numbers from 1994 to 2004 did not even total that). For the R100's you kind of had to expect the shaft to grenade somewhere between 30k and 50k miles. I chewed up one at around 48k kilometers.

Someone came up with a lube-able solution on the R100GS's. If the problem persists on the R12 I guess the same folks can fire up their production line again.

The U-joints are sealed for life - unfortunately the lube inside heats up and eventually parts company. The vibration is a tell tale sign - very noticeable through the foot pegs.

Not sure how far the archives go back on the Micapeak BMW-GS mailing list but if you poke around in there for the 1995 onwards timeframe you'll see a fair amount of traffic on driveshafts that failed.
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Old 09-16-2009, 07:39 AM   #30
DaFoole
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Quote:
the driveshaft of Paralever design is a "consumable item" by BMWNA and should be replaced every 40,000 miles at a cost of $636.
...kinda negates the "chains and sprockets cost more in the long run" argument.....



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