Rear wheel binding when torqued

Discussion in 'Airheads' started by hairball29, Sep 20, 2019.

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  1. hairball29

    hairball29 Adventurer

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    Hi,

    I have a '72 R75/5 which after having a puncture repaired and the rear wheel refitted, started binding between the final drive and wheel flanges.

    I put the wheel on, the axle in and torqued to 33lb as the manual states and the wheel binds so badly it will barely turn by hand. If i slacken it, it comes back, but it's on the edge of being too loose at that point.

    This is new behavior, so I'm wondering if a bush, or washer or something was during the puncture repair, but I can't figure what might be missing when I look through the parts diagrams.

    Any clues would be appreciated

    Thanks
    #1
  2. Big Bamboo

    Big Bamboo Aircooled & Sunbaked Supporter

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    Take the wheel off and look at the inside of the wheel where the axle goes through. There is a "top hat" spacer/sleeve that should be sticking out slightly proud of the wheel bearing seal. If it is missing, the wheel will bind as you describe.
    36 31 2 301 737 SLEEVE
    [​IMG]
    #2
  3. tlub

    tlub Long timer Supporter

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    And it's easy for it to fall out under the wrong circumstances.
    #3
  4. hairball29

    hairball29 Adventurer

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    Thanks, guys. I just checked and that spacer is missing. It must have dropped out when i was transporting the wheel or when the guys were doing the tire. At least it's a simple fix.

    Thanks again
    #4
  5. Big Bamboo

    Big Bamboo Aircooled & Sunbaked Supporter

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    I should mention, there are two different lengths of that spacer available, depending on if you are running a wider than stock tire or not...
    #5
  6. ME 109

    ME 109 Long timer

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    Does the /5 have different size top hats either side as stock? My 81 does.
    #6
  7. Big Bamboo

    Big Bamboo Aircooled & Sunbaked Supporter

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    Yep, there are three sizes available:

    36 31 2 301 737 SLEEVE - 10,7MM Wheel bearing thrust sleeve, right hand side, R50/5 - R100RT. Used if using an oversize rear tire (120/90-18).
    [​IMG]
    08 36 31 4 038 142 SLEEVE - 9,2MM Wheel bearing thrust sleeve, right hand side, R50/5 - R100RT. Used when using a standard rear tire (110/90-18). Also used for the swing arm bearings.
    [​IMG]
    For the left hand side, there is the:
    36 31 1 230 322 COMPRESSION RING aka Thrust ring, R50/5 - R100RT, R45 - R65, R80 - R80RT.
    [​IMG]
    #7
    ME 109, aptbldr and bmwrench like this.
  8. hairball29

    hairball29 Adventurer

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    Thanks again
    #8