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Shuttle valve forks

Discussion in 'Triumph (Classic)' started by chasbmw, Feb 26, 2019.

  1. chasbmw

    chasbmw

    Joined:
    Aug 30, 2011
    im trying to loosen the bottom bolt on my 1969 T120 (part no H2126).

    It’s in a recess in the bottom of the forks and looks as if it needs a slim tube spannerof a thin walled 1/4” drive socket.

    What size is the bolt head, feels to be between 8 and 9mm.

    As an alternative any other ways of removing as replacements can be found.

    Many thanks

    Charles
     
  2. kommando

    kommando

    Joined:
    May 7, 2005
    Try a 2BA socket or 1/8 Whit, but why do you want to disturb it, as soon as its loose the internal compression bump stop will want to turn and you then need a socket on a very long extension to stop that turning. Same rigmarole to replace and the issue of getting it to seal against oil leaks.
     
  3. L.A.B.

    L.A.B. Moderator VIP MEMBER

    Joined:
    Nov 20, 2004
    The forks changed to Unified thread from 1968 and H2126/97-2126 appears to be UNF so the hexagon could be 5/16"or 11/32".
    http://www.mca-aston.co.uk/parts/search/1/33
    "97-2126 FORK RESTRICTOR BOLT UNF"
     
    Last edited by a moderator: Mar 12, 2019
  4. Adam M

    Adam M

    Joined:
    Mar 16, 2019
    Why did you decide to do that ?
     
  5. chasbmw

    chasbmw

    Joined:
    Aug 30, 2011
    I realised that i didnt need to remove the bolt......I was thinking of previous BMW airheads, which has a more complicated damper rod that should be removed as part of forks R&R
     

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