My R1100S Clutch Needs Viagra

[Nail24]

I was riding back to C'ville from Das Bikehaus a couple of weeks ago and wacked the throttle. Well, long story short the clutch didn't hold any more. Revs when up but the speedo didn't follow suit. I'm getting ready to haul it back to the basement and do major surgery. Anyone got any tips before I put the patient on the hoist?

[jamming]

Bubba I'm on my phone now. Its hard to type a long answer. Do you want to call me for some pointers? Look at the clutch fluid is it low? Many times the slave cylinder or rear main leaks and oils the clutch

[Deans BMW]

Bubba, first pull your starter to have a look see and from what ever....if any....oil residue is evident. Could be rear main seal, engine oil. tranny input seal, tranny oil or as Roger suggested Slave cylinder leak.......or just a tired clutch plate.

How many miles on the bike.

[DarthRider]

Maybe your motoyoyo is leaking? :001:

[Nail24]

Dean, I did pull the starer. Will post photos. The transmission seal was replaced about 17k miles ago and the input shaft and clutch were replaced. What do the photos tell you?

http://i288.photobucket.com/albums/ll170/nail24/DSC02496.jpg

http://i288.photobucket.com/albums/ll170/nail24/DSC02498.jpg
Fluid on Starter Housing
http://i288.photobucket.com/albums/ll170/nail24/DSC02497.jpg

[Bill]

Bubba, it looks like you struck OIL ...
SAME THING HAPPENED TO MY 2000 1100RS.

[panthercity]

For a (somewhat) humorous account of a clutch job, go here (http://www.panthercity.net/MC/In%20the%20clutches%20of%20BMW.htm).

[Deans BMW]

Is that oily? looks that way. Rub your fingers on it and determine what it is.

Excellent pics BTW.

[Nail24]

Well, I got it back to Das Bikehaus and got the state inspection out of the way so that I can renew the tag. That means I'm hopeful that II'll get the puzzle back together. lol Tomorrow the #^%&* words will fly in the basement. I hope the beer supply can last. I'm hoping the fluid is DOT 4 and not Mobil 1.

[Donson]

:001:Save the beer until its finished!:001::001:

[Ed K]

I'm hoping the fluid is DOT 4 and not Mobil 1.

Hope you are right, but...

[Nail24]

I torn down Obsssn today at Das Bikehaus. The 74 degree basement temperature is much better than a garage in August. First, the hardening job done by Moybin a few years back is holding up well. I used the repair manual as a check list as I dismantled the aft section of the bike. Most of the teardown process is pretty straight forward. The nice thing about having space is that you can lay the parts in groups facilating faster reassembly.

The pool table makes a great parts holder.

http://i288.photobucket.com/albums/ll170/nail24/DSC02571.jpg

I laid the other parts around giving some a nice resting place.

http://i288.photobucket.com/albums/ll170/nail24/DSC02572.jpg

After getting the rear tail structure removed, I positioned the bike under the I-beam and used a tiedown strap to support the fd and rear main frame section so that i could release the drive shaft from the transmission without removing the fd from the swing arm first. This allowed me to leave the pivot pins undisturbed. Called Bill Swartzwelder and got the tip about releasing the circlip that holds the drive shaft to the tranny. I moved the aft assembly (fd, swingarm, rear fram and drive shaft) back about 1.5" to allow me to pry the drive shaft from the tranny without losing the phasing on the driveshaft.

http://i288.photobucket.com/albums/ll170/nail24/DSC02573.jpg

With the aft assembly removed, I was ready to remove the starter, neutral switch, airbox, and the clutch slave prior to removing the tranny to expose the clutch. I had already loosened the hard rear brake lines from the ABS module to allow great flexibility in working around them. I didn't have to disturb the front brakes or remove the battery box as called for in the repair manual.

http://i288.photobucket.com/albums/ll170/nail24/DSC02577.jpg

The transmission was 6 bolts and out. It was when I pulled the clutch slave that I got the good news and the bad news. First, the bad news in photos.

http://i288.photobucket.com/albums/ll170/nail24/DSC02568.jpg

http://i288.photobucket.com/albums/ll170/nail24/DSC02569.jpg

http://i288.photobucket.com/albums/ll170/nail24/DSC02592.jpg

Yup, the clutch slave removal produced approx 2 oz of Dot $ and the push rod looked like a dipstick. Oddly enough I haven't added any fluid since I bought the bike! Needless to say the clutch disk is history. It was well soaked with Dot 4.

http://i288.photobucket.com/albums/ll170/nail24/DSC02589.jpg

All other clutch components are servicible. Iwill use an old tranny input shaft and release rod to align the new clutch. With five minutes to spare I called Beemer Bone Yard and he shipped it 2 day UPS to me. It will arrive Friday. Tomorrow will be a cleaning and prep day for reassembly.

Oh the good news is it was the rear main seal! Zero leaks in that area.

http://i288.photobucket.com/albums/ll170/nail24/DSC02578.jpg

O-ring on the TB to Airbox were toast. ABS needs a good flush, because the fluid looked like 30 wt motor oil. I used medical hemastats rather than quick disconnects to shut off the fuel for tank removal.

Now I've got to figure out this 120 degree note in the clutch section of the repair manual.

Will post more later. Time for a beer or three.:)

[jamming]

Now I've got to figure out this 120 degree note in the clutch section of the repair manual.


The clutch bolts are a 1 use item...don't reuse them or you get to do it again when they fail and its way more expensive the second time around.

As far as the 120 degree note....the clutch, the backing plate and the pressure plate have a heavy spot marked on them. The last one I did it was a spot of blue paint on each. They need to be "phased" 120 degrees apart. That will "balance" out the rotating mass of the three parts.

Any question Bubba yell at me.... six zero two-five seven zero-eight four nine seven. That's my mobile. If anybody wants to add my number to their speed dial feel free. I'm heading to Dean's tomorrow......so I'll be on the road 0700-1200 L

[Nail24]

Got the clutch installed (new bolts) and the Tranny bolted up nicely. Main frame alignment was a bear. Had a friend here to help do the heavy lifting. We flushed the clutch an installed blue Dot4 fluid with the Beemer Boneyard rebuilt clutch slave. Cleaned the TB's and airbox. While trying to install the mainframe the drive shaft separated and that was a bit of a problem to get it back ing phase and installed without removing the FD. More later.

[Nail24]

The R1100S is back up and running. I'll post the lessons learned and discoveries during the 100k mile make-over later.

I'm trying to solve the puzzle on why the clip (item #2) wasn't engaged on the final drive. Has anyone ever had this problem before?

http://www.maxbmwmotorcycles.com/fiche/DiagramsMid/B0002264.png?v=03252011