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Thread: Final drive question? 2010 R1200RT

  1. #1
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    Final drive question? 2010 R1200RT

    Has anyone removed the threaded bushing
    That keeps the pinion gear in the final drive
    If so anything one should know is it left
    Or right hand threads

    Joe
    2010 R1200RT
    Last edited by deilenberger; 01-25-2013 at 05:33 AM. Reason: added year/model to title

  2. #2
    A bozo on the bus deilenberger's Avatar
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    Hi Joe,

    Welcome to the MOA forums. I'm adding the info on your bike year/model to the thread title. This is often helpful in getting someone with some useful knowledge to open the thread. Please read: http://www.bmwmoa.org/forum/showthread.php?46055, and if possible, in the future add the info when creating the thread.

    As far as your question - I haven't done it, but perhaps someone with the service DVD can check it for you. What's the problem with your rear drive?
    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

  3. #3
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    Hello Don, thanks for the reply I don't have a problem with my drive, but while doing winter maintenance and reading all of the drive woes
    some of the owners are or have had I can't help but think it's more of a bearing / maintenance issue. seems to me the weak link would be
    the 6013 sealed bearing, not that this bearing is a bad choice for the job at hand the fact is it has a life span. me I would like to determine
    that amount of time and change it on my terms. So while I have my drive apart I can't help but notice the pinion gear and it's assembly method
    and thought if I ever had to take it apart for a seal change or something I would need a special tool. So I made one in my shop just in case
    and while trying it this bushing won't budge even with at least 250 ft. lbs of torque. somebody put it in and I would think someone has taken one out
    before, I don't want to use heat and I don't want to give up, now it's a quest. here's a photo of the tool to remove the bushing.
    Regards,
    Joe,
    Attached Images Attached Images

  4. #4
    A bozo on the bus deilenberger's Avatar
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    I just looked at the factory manual..

    A few notes:

    1. They show a large elaborate fixture that secures the crown gear so you can take the nut off the pinion.
    2. They mention heating the nut to 100C in order to loosen it.
    3. They suggest that heating the nut will destroy the pinion shaft seal so that should be replaced.
    4. They then mention the threaded ring - and a "pin wrench socket adaptor" PN 31 7 11. Looking at the adaptor - it has the same sort of tooth arrangement as the tool you made, but it also has an inner sleeve that the inside of the teeth are against, I'm guessing to add strength (or perhaps the teeth are machined out of the inner sleeve.)
    5. The instructions are: "Remove threaded ring (1) with pin wrench socket adapter (No. 33 1 711)."

    This is followed by somewhat complex instructions on how to replace the seals and how to remove the pinion itself (which involves an impact puller and heating the rear-drive housing, and catching ball-bearings that will drop out.) Next follows some complex instructions on disassembling the pinion, shimming it, reassembling it, etc.

    Finally - the section on installing the threaded ring - basically says to screw it back in using the special tool, and tighten to 180 Nm. They mention it's a M65 x 1.5 ring. No mention is made of any thread locker being used.

    The nut has to be replaced when reassembling- it mentions thread-locker, and tightening it to 200 Nm.

    HTH, I suspect if you obtained the RepROM (Repair ROM) the info in it might be helpful.
    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

  5. #5
    God? What god? roborider's Avatar
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    You may find these threads of interest:

    http://www.bmwmoa.org/forum/showthre...378#post704378

    http://www.bmwmoa.org/forum/showthre...378#post704378
    (look at the end where the poster custom made tools)

    From ADV rider:
    http://www.advrider.com/forums/showthread.php?t=682413

    http://www.bmwmoa.org/forum/showthre...187#post784187
    (This one has links in it as well).

    I have been collecting good links on the FD so that if it happens to me I can repair my own.

    I'm still on the hunt for a damaged one if anyone has one. I'd like to rebuild it and put it in use.

    If you find other good information, post it here for us.

    Best,
    Rob
    Rob C. , Raleigh, NC
    '10 R12RT, R90/6
    2007 CBR600RR & 09 V-Star
    Suzuki DR 350

  6. #6
    Registered User lkraus's Avatar
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    Joe, after reading Don's description of the factory instructions and considering that you currently have no FD troubles, I think the rule to consider here may be : "If it aint broke, don't fix it." or perhaps: "Curiosity killed the cat."

    This from a kid who seldom played with a new toy without first taking it apart and putting it back together.
    Larry
    2006 R1200RT

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