Drift depth - BMW techos

Discussion in 'GS Boxers' started by The Other JC, Aug 8, 2011.

  1. The Other JC

    The Other JC 4 year lurker..

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    Apr 4, 2010
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    Hello
    could a very nice BMW techie tell me the depth of the drift for the gearbox input shaft seal for R1200GS part no 23 4 711.

    My measure with a vernier on the installed seal was roughly 5.1mm, but seemed to vary by .3mm round the seal !!!.
    Would like to know the official depth for future reference.

    Are you able to measure with vernier to let advrider home techs know?

    Much appreciated
    this picture from RepROM

    [​IMG]
    #1
  2. Wolfgang55

    Wolfgang55 Long timer

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    Hmmmm, not too much:wink:
    #2
  3. ErricZ

    ErricZ Been here awhile

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    This was recently measured in another thread .... I think 5.3mm ended up being the consensus, but I could be wrong. :deal
    #3
  4. The Other JC

    The Other JC 4 year lurker..

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    I have searched high and low for the official value, to no avail.

    Pretty please if any techos are reading :D
    #4
  5. ErricZ

    ErricZ Been here awhile

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    #5
  6. ErricZ

    ErricZ Been here awhile

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    #6
  7. AntonLargiader

    AntonLargiader Long timer

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    5.3mm for the input shaft seal installer tool.
    #7
  8. The Other JC

    The Other JC 4 year lurker..

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    Thanks people.

    I think I got it right enough. Feel more happy now with what I did.

    I made this drift tool from a $1.50 plastic pipe bit from the hardware store.
    Trimmed it down till it sat lightly on the existing seal and hard on the sholder, then used it to tap in the new seal.

    5.2mm the final depth for the new seal. If it leaks again, new tool at 5.3 coming up!. :rofl
    My new Siebenrock friction disk won't mind a bit of oil.

    Julian
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    #8