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post #1 of 23 Old Aug 9th, 2014, 1:17 pm Thread Starter
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drive "shaft" on 05 LT

I have removed my final drive - bearing was toast - I then found the u-joint was a little "tight". I have been looking here and the advice is to replace the whole shaft. I called dealer today and was given the sticker shock of $980 + tax etc.. Really so can you send it out and have u joint's replaced or do you need to replace the whole shaft?
Your help and comments would be helpful. Bike has 160K on her and I am second owner - bought last year and enjoy riding not fixing all summer

2005 K1200LT
1994 R1100 RS
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post #2 of 23 Old Aug 9th, 2014, 2:12 pm
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Re: drive "shaft" on 05 LT

The u-joints can not be replaced & a little tightness is normal. They also have a slight notchy feel to the u-joint usually when I check them. Max BMW shows the shaft at $853.

Dave Selvig
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post #3 of 23 Old Aug 9th, 2014, 4:14 pm
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Re: drive "shaft" on 05 LT

There are 4 used ones on eBay - all for under $100 . . .

http://www.ebay.com/sch/i.html?_odkw...200rt&_sacat=0

Dan Finazzo
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post #4 of 23 Old Aug 9th, 2014, 7:12 pm Thread Starter
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Re: drive "shaft" on 05 LT

so how do i know how much "tightness" is acceptable? If i don't have to replace drive shaft will save me lots of hassle

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1994 R1100 RS
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post #5 of 23 Old Aug 9th, 2014, 9:38 pm
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Re: drive "shaft" on 05 LT

Tight is good as long it is linear through the range of motion. When they get loose and notchy it is an issue. Mine at 80 K was getting a bit loose and had a tight spot so I pick up a spare off this site.

John
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post #6 of 23 Old Aug 10th, 2014, 1:51 pm Thread Starter
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Re: drive "shaft" on 05 LT

I have run into a problem taking the swing arm journal - the left side has rounded. Is it a left hand thread? I have removed the outer hex and 12mm on left and 30mm on right. Right bearing journal was johnson bar and pipe handle to get free. If I'm really stuck will get nut welded on to remove -but must make sure turning correct way.
Thanks

2005 K1200LT
1994 R1100 RS
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post #7 of 23 Old Aug 10th, 2014, 8:04 pm
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Re: drive "shaft" on 05 LT

both "normal" thread... lefty-loosey... did them a week ago and I was wondering the same thing.

Chris
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post #8 of 23 Old Aug 10th, 2014, 8:42 pm Thread Starter
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Re: drive "shaft" on 05 LT

Quote:
Originally Posted by cws View Post
both "normal" thread... lefty-loosey... did them a week ago and I was wondering the same thing.
Thank you,

2005 K1200LT
1994 R1100 RS
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post #9 of 23 Old Aug 12th, 2014, 10:08 pm
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Re: drive "shaft" on 05 LT

Give me a part number and I can see if I can help out by selling mine.

http://www.maxbmwmotorcycles.com/fic...5&rnd=04282014
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post #10 of 23 Old Sep 2nd, 2014, 7:27 pm Thread Starter
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Re: drive "shaft" on 05 LT

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Originally Posted by globecom View Post
Give me a part number and I can see if I can help out by selling mine.

http://www.maxbmwmotorcycles.com/fic...5&rnd=04282014

Here is part# 26 11 2 332 996
mine is 6 degrees out of phase - with u-joints that are done
It is time to make the call to dealer and buy new one I think

2005 K1200LT
1994 R1100 RS
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post #11 of 23 Old Sep 2nd, 2014, 8:00 pm
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Re: drive "shaft" on 05 LT

Quote:
Originally Posted by barrieridin View Post
Here is part# 26 11 2 332 996
mine is 6 degrees out of phase - with u-joints that are done
It is time to make the call to dealer and buy new one I think
6 degrees out of phase sounds about right. What is wrong with your u-joints?

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post #12 of 23 Old Sep 3rd, 2014, 6:45 am Thread Starter
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Re: drive "shaft" on 05 LT

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Originally Posted by Voyager View Post
6 degrees out of phase sounds about right. What is wrong with your u-joints?
Shouldn't the drive shaft go to phase? not 6 degrees out? My mechanic friend( truck - car) not bmw bike - has looked at and taken to machine shop to get u-joints replaced. (yes don't do it i know) u-joint is tight at the end of it's usual range. You can feel the difference as you go through range of motion with u-joint.

2005 K1200LT
1994 R1100 RS
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post #13 of 23 Old Sep 3rd, 2014, 8:40 am
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Re: drive "shaft" on 05 LT

Quote:
Originally Posted by barrieridin View Post
Shouldn't the drive shaft go to phase? not 6 degrees out? My mechanic friend( truck - car) not bmw bike - has looked at and taken to machine shop to get u-joints replaced. (yes don't do it i know) u-joint is tight at the end of it's usual range. You can feel the difference as you go through range of motion with u-joint.
LT driveshaft has a rubber damper integral to the shaft. This allows some rotation under load (torque). The clever BMW engineers allowed for this and the front u-joint trails the rear by a few degrees statically so that it will be in phase under a typical cruising load.

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1976 Kawasaki KH400
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post #14 of 23 Old Sep 3rd, 2014, 3:09 pm Thread Starter
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Re: drive "shaft" on 05 LT

Sweet, and thanks. I was there picking up parts and had chance to talk with service mgr. I think u-joints are ok - His recommendation was to not replace shaft but pinion bering at final drive- swing arm. "You have it all apart - we always replace when we do" being holder if not damaged/ scored will be fine.

2005 K1200LT
1994 R1100 RS
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post #15 of 23 Old Sep 3rd, 2014, 8:08 pm
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Re: drive "shaft" on 05 LT

Pinion bearing is $138 plus you have to re-shim the pinion for gear contact then re shim the taper bearing for backlash and finally re-shim the big bearing for preload. Sounds like a lot of labor to me.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
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But lack DE, MA, RI and CT with the 2005 LT

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post #16 of 23 Old Sep 6th, 2014, 6:40 pm Thread Starter
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Re: drive "shaft" on 05 LT

Hey John, the pinion needle bearing i thought / think i bought are between the final drive and the swing arm. The final drive is off being rebuilt by Bruno's as per Dave's recommendation ( U-tube video). I have had just about every issue - exhaust studs came out, bearing journal's mounting the swing arm were stuck and replaced as damaged in removal. Would like to think I'm almost ready to put together soon as drive returns. Does needle bearing require backlash etc?
Oh please I hope not LOL

Andrew

2005 K1200LT
1994 R1100 RS
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Last edited by barrieridin; Sep 6th, 2014 at 9:52 pm. Reason: misspell
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post #17 of 23 Old Sep 6th, 2014, 8:27 pm
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Re: drive "shaft" on 05 LT

If they meant the pivot bearings where the drive mounts to the swing arm no issues. The pinion bearing is the one on the shaft of the final drive where the drive shaft connects. That one is a bear. The pivots do get a slight preload when you install the drive but it is a no brainer.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
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But lack DE, MA, RI and CT with the 2005 LT

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post #18 of 23 Old Sep 7th, 2014, 3:26 am
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Re: drive "shaft" on 05 LT

Quote:
Originally Posted by Voyager View Post
LT driveshaft has a rubber damper integral to the shaft. This allows some rotation under load (torque). The clever BMW engineers allowed for this and the front u-joint trails the rear by a few degrees statically so that it will be in phase under a typical cruising load.
Ahh, so that's why the intensional misalignment.
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post #19 of 23 Old Sep 7th, 2014, 8:08 am
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Re: drive "shaft" on 05 LT

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Ahh, so that's why the intensional misalignment.
I am pretty sure that is the reason. Someone, I want to say Tom Cutter, did a calculation on the approximate torque required to move an LT down the road at 55-60 MPH. He then put the rear of the shaft in a vise and applied that much torque to the front either a torque wrench. The u-joints came into almost perfect alignment.

Some of those German engineers are really clever. The others get to design trunk latches, fuel quick disconnects and K1600 oil drain systems.


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post #20 of 23 Old Sep 13th, 2014, 5:03 am Thread Starter
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Re: drive "shaft" on 05 LT

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Ahh, so that's why the intensional misalignment.
Just wanted to say Thanks Gents!!
will be doing reassembly today - going for a ride tomorrow is the plan

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1994 R1100 RS
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post #21 of 23 Old Sep 13th, 2014, 1:02 pm
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Re: drive "shaft" on 05 LT

For driveshaft U-joint orientation to be this hyper-critical, you first have to assume the angle that each end undergoes is equal.

That simply ain't the case on our bikes. Yeah there may be a preferred way, but isn't something to sweat.
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post #22 of 23 Old Sep 14th, 2014, 6:02 pm Thread Starter
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Re: drive "shaft" on 05 LT

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For driveshaft U-joint orientation to be this hyper-critical, you first have to assume the angle that each end undergoes is equal.

That simply ain't the case on our bikes. Yeah there may be a preferred way, but isn't something to sweat.
All the help in this forum and from you gents is just wow, thank you again.
I ended up taking extra day but did go for test ride today - better than i remember lmao

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post #23 of 23 Old Sep 14th, 2014, 6:37 pm
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Re: drive "shaft" on 05 LT

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Originally Posted by niel_petersen View Post
For driveshaft U-joint orientation to be this hyper-critical, you first have to assume the angle that each end undergoes is equal.

That simply ain't the case on our bikes. Yeah there may be a preferred way, but isn't something to sweat.
And that the angles are large enough to matter. I am not sure what the range of angular more is from full suspension extension to full compression, so hard to make an assessment. However, having the sinusoids in phase is, I believe, still the best alignment even if the angles are different.

As an EE, I am fairly familiar with superimposing sinusoids and both phase and magnitude matter. I am not a driveshaft expert by any stretch, but I believe that the angle of the u-joint affects the sinusoid magnitude and the misalignment of the two u-joints affects the phase betgween the two sinusoids. So, while having different joint angles means that you can't completely cancel sinusoidal motion at the output yoke, I still believe that this residual sinusoidal motion will be minimized if the u-joints are in phase as the residual will be due solely to the difference in magnitude of the two u-joint sinusoids and not due to a different in phase superimposed on the difference in magnitude.

However, as you say, I don't know if the residual sinusoid is enough to even worry about. I still feel better aligning the u-joints as it isn't that hard, it is free and it can only help.


2017 KLR650 "Mule"
2007 K1200LT "Starship Enterprise", VOICE II, Navigator V, Motorrad Communicator
1987 Kawasaki Voyager XII
1976 Kawasaki KH400
1973 Kawasaki 100 G5
1970 Rockford Chibi (the orange one)

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