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Fork bottom bolt to damper rod torque setting

Discussion in 'XJ Technical Chat' started by railtrolley, Jun 14, 2009.

  1. railtrolley

    railtrolley Member

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    Dismantled both forks to replace leaking oil seals and dust wipers. For the damper rod holding tool, I welded a 22mm nut to a 2 ft long piece of 20mm RHS.

    The Haynes manual says the fork bottom Allen bolt, the one that holds the damper rod, is torqued to 23Nm, which is about 18ft/lbs. Doesn't seem like enough, when the bolt needed much more force to get it undone. Does 23Nm sound like the right torque setting?
     
  2. mcrwt644

    mcrwt644 Member

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    honestly, if you have the damper holding tool, that's fine, you can torque it to the specs. IF you don't, I always tighten by hand (and of course the internals spin, and you can't get it tight enough so it doesn't leak) I hit it with an impact gun...not much mind you, just enough to get that extra 1/8-1/4 of a turn to prevent a leak. I've done this so many times I can't count and knock on wood, haven't had an issue.
     
  3. chacal

    chacal Moderator Moderator Supporting Vendor Premium Member

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    'Tis because the bolt is supposed to use super-duper thread locker fluid during installation, so when you go to remove it later, makes it seem as though it was torqued to a much greater value..........
     
  4. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    Is this something specific to the 900 or does it apply to other/all XJs?

    There's no mention of using locking compound in the factory or Clymer books for the 550s...
     
  5. chacal

    chacal Moderator Moderator Supporting Vendor Premium Member

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    The non-permanent thread locking compound is specified for use in the 750 Maxim, 700, 900 manuals. I don't see it specified in the other manuals. I would assume that it should be used on all of them, as having that bolt come loose could be a real problem...........but you're right no mention of it in the 550 or 650 manuals!
     
  6. MiCarl

    MiCarl Active Member

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    I always use loc-tite on those bolts.
     
  7. Chorca

    Chorca Member

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    The Hayes manual I have states 14ft-lbs for the 750 models. I torqued it there and that seemed like about how much it was to take it off.
     

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