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Thread: No Clutch Freeplay on K75

  1. #31
    3 Red Bricks
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    Out of curiosity, could you give us a break down on the cost per part and the shipping charges on your order? I've thought about ordering several things from them that seem really well priced, but with the added shipping costs it has seemed almost as much as buying on this side of the pond.


    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  2. #32
    Rally Rat
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    Top receipt is for shipping.

    All prices in British Pound Sterling.

    P1020938.jpg

  3. #33
    3 Red Bricks
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    Cool! So about $300 total as opposed to about $425 if bought from a dealer with no tax. DEFINITELY a good deal!


    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  4. #34
    Rally Rat
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    Installed the new clutch parts.

    Problem Solved

    Plenty of room on the clutch cable now to adjust as necessary.

    I measured the old and new parts and the only real difference was on the friction disk. Old was 4.9mm. New is 5.6mm. I compared the two clutch springs on a flat table and they were exactly the same height. The old friction surfaces were very smooth.
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  5. #35
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    No Clutch Freeplay on K75

    Tim, I'm not real clear (nothing new here) as to why the new parts moved the clutch rod and throwout bearing forward from Post #7 and Post #15 to the obviously more recessed throwout bearing in Post #34 and allowing correct lever and cable adjustment. May happen to me one day and I won't waste time scratching a hole in my head when I could be out riding. Charlie

  6. #36
    Benchwrenching PGlaves's Avatar
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    The new thicker clutch disk pushes the pressure plate a slight bit forward. This pushes the center of the spring that is engaged by the clutch rod even further forward in the clutch engaged position.

    Thus there was room to provide free-play at the cable.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://www.bigbend.net/users/glaves

  7. #37
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    No Clutch Freeplay on K 75

    How simple. Thanks.
    Charlie

  8. #38
    A bozo on the bus deilenberger's Avatar
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    Tim,

    Thanks for following up with the "solution" - it will help someone in the future for sure.. That was a surprising amount of wear on the disk.. most disks I've measured are just about at the spec'd max thickness (perhaps a tiny bit of wear) even with lots of miles on the bikes. I've heard of one or two wearing out, but it's really quite rare. Apparently the clutch lining area is about equal to that on a VW bug engine, where you're moving 1,800lbs around.. (with less HP than the K75..)

    Thanks again!
    Don Eilenberger http://www.eilenberger.net
    Spring Lk Heights NJ NJ Shore BMW Riders New Sweden BMW Riders
    '07 R1200R (current ride) and some bimmers.. and a Porsche

  9. #39
    Rally Rat
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    FYI - Here are the old parts on the way to the garbage bin. (Spring replaced too but not pictured.)
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  10. #40
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    I think I see your problem!

    That is not a BMW K75 clutch disc.

    No wonder we couldn't figure it out. Nobody was considering that it had the WRONG disc in it!




    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  11. #41
    Rally Rat
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    Doh!

    Brand says "Surflex". No visible part number.

  12. #42
    Benchwrenching PGlaves's Avatar
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    Quote Originally Posted by 98lee View Post
    I think I see your problem!

    That is not a BMW K75 clutch disc.

    No wonder we couldn't figure it out. Nobody was considering that it had the WRONG disc in it!




    As soon as I saw the photo I was going to say the same thing - but as is not uncommon, Lee beat me to it.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://www.bigbend.net/users/glaves

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