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Thread: Fouled FD, orǪ? [see video - 99 R11S, 16.8K]

  1. #1
    Registered User CJRTRIO's Avatar
    Join Date
    Jan 2013
    Dallas TX

    Fouled FD, orǪ? [see video - 99 R11S, 16.8K]


    Thank you for your attention to this amicus curiae regarding a possibly FOULED final drive. Please read below and view video.

    Before I begin, my new old R1100S is connected to my tailbone now despite this so clean and purdy and rides like I like. Too bad them durn teutons forgot how to make more invincible things like 2002s and 240Ds Ill just suffer through some planned obsolescence reading material (Vance Packard), maybe make a nutkick youtube video with original music about my fd fdǪor just pray about it daily and add it to my template for dealing with modern reality.

    Its prior life:
    PO#1 in Chicago put half the miles on it over ~10 years
    PO#2 got it to 16K with most of the 12K service done (all synth lubes at that point) he:
    o had well-documented maintenance and bike was cosmetically pristine and started/idled/ran extremely well
    o commuted and also rode it 2up with luggage on moa-type rides
    o had GS torque arm on it over last few K miles (I went back to stock gs arm for sale soon)

    Bike made a rashy bearing-type noise when I bought it I figured its a bearing or a tire and I can handle that cuz the rest is so good and I like r11s in red and this ones spotless and I have the patience of a chimpanzee. Noise very slight with no helmet on but is amplified when helmet is on. Changes character when turning left or right.

    It also made a pretty clunky noise going into first (rolling or not, and minimized but present at slow pre-stop synchronous roll speed), or it makes the clunk noise after first is selected and clutch is first let out). Clunk noise is a larger version of whats at the end of the video below I read that they all clunk so I wasnt worried. A tech in my area who rides a very young boxer cup didnt comment on any of this after he test-rode it. I feel no transmission anomalies under acceleration rolling off throttle produces the clunk too.

    I detect no play in the 12/6 manipulation of the rear wheel. I hear no clunking sound when I turn the wheel manually just a little rashy sound. I feel and barely hear a slight play in the 3/9 wheel manipulation pivot bearing work is already in the scope.

    So I did an oil change and, while warming it up, the behavior in this video made my heart sink:

    Hate to say it, but sound seems to be coming from middle of shaft assembly or more towards FD. No more ridey. Next move was I drained the FD (records/po indicate it was last changed at 12K miles - synth). I figured Id get shrapnel coming out but I only saw one small shiny chip on the plug and some paste and partly cloudy greenish/grey fluid with small graphite-like shiny dust and no chunks as in photo below.

    So, based on my read of the many posts, I have the following thoughts/observations:
    Bearing may be fine (no 12/6 play) but pinion might be toasting, or
    Bearing on way out despite still being tight (perhaps overshimmed from day 1), or
    FD may be fine but there could be trouble upstream
    Splines may not have seen daylight since pre-Y2K so could be prob there
    Id kinda like to get it all lubed up (even the clutch splines) with Honda moly at this point and start my term as curator with a like-new drivetrain (Im told clutch should be fine at 16K and I am good at extending the geriatric clutch). I also know that I have to trust my helpers to get it aligned properly going back together (or is that only when you redo the main output seal?)
    If I can get new parts and know Im paying retail not retail plus, Ill bite the bulletǪthis one timeǪdangitǪ
    If this is non-trivial (by r1100s standards), I will post to all registries and politely ding the Teutons for their namby pamby Achilles heel.

    I have a couple of freelance mechanics that have a long track record and I plan to work with them carefully on it.

    Would like to hear educated guesses as to whether I can/should ride it to another location to be worked on and in general what next steps are. And how to find new parts that arent comically expensive.

    Thank you all very much for your attention blessings to the MOA community.
    Attached Images Attached Images
    "If you see a fork in the road, take it." [Berra]
    "The problem with socialism is that, eventually, you run out of other people's money." [Thatcher]

  2. #2
    Put it on the centerstand and spin the rear wheel by hand. It should spin smoothly. If it's "grindy" that's an indication of a bad big bearing. If it goes "clunk-clunk, clunk-clunk" then you have a u-joint on the way out.

    Pull the starter off. Tie the clutch lever in, then look into the slot and rotate the clutch disc with a screwdriver. The clutch disc and transmission input shaft should turn in unison. If the disc is able to turn on the shaft you have an input shaft/ clutch disc problem.

    As a note, I'm not sure whether the noise in your video means anything or not. All three of the problems I listed are somewhat common to oilheads, but they usually don't occur at such low miles. I would expect a spline issue to show up at 30K miles, a big bearing issue to appear at about 50K, and a driveshaft to go bad at 100K.

    Your "clunk" noise going into gear is normal. The noise you hear when riding sounds like tires.

  3. #3
    Welcome Cjrtrio:

    I don't think there is anything wrong with your bike.
    Don't run it in gear on the center stand, the rear drive needs to be loaded or it will make scary clunking noises.
    Mike Marr
    1978 Yamaha XS750 (Needs rings), 1996 BMW R1100RS, 2004 Honda CRF230F

  4. #4
    Registered User CJRTRIO's Avatar
    Join Date
    Jan 2013
    Dallas TX
    Thanks, gents. I just bought an updated left tensioner assembly thinking all will be good - this was disconcerting.

    Will do starter thing.

    Wheel turns non-clunkily with a faint wind rushing noise.

    From what I read I figure I should still address 9/3 wheel play and lube splines along way.

    In tyre research mode.

    "If you see a fork in the road, take it." [Berra]
    "The problem with socialism is that, eventually, you run out of other people's money." [Thatcher]

  5. #5
    Registered User
    Join Date
    Sep 2006
    Diamondhead, MS
    I didn't watch the video, but what you describe as a "rashy" noise sounds to me like nothing more than the brake pads dragging on the disc (which they are supposed to do). I guess if you really were compelled, you could remove the brake pads and see if the noise goes away. If so, you could then find something else to obsess about.
    '03 R1150R, '03 F650GS, '97DR200SE,'78 Honda CT-90, '77Honda CT-90

  6. #6
    Registered User
    Join Date
    Jun 2003
    Northern Front Range, CO
    Other than disagreeing with Jim's overly pessimistic time frames for spline/FD/DS problems, i would concur- not hearing or seeing anything of great concern.
    Ride Safe, Ride Lots

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