Stripped Thread on Carbon Parts

SHAWPYE
SHAWPYE Posts: 85
edited January 2011 in Workshop
Hi All,

I have recently stripped the thread on my carbon tri bar clamps.

I am considering using a heli-coil kit to re thread it?

Anyone got any other ideas?

I have now ordered a torque wrench to make sure this don't happen again.

Thanks Shaw

Comments

  • Monty Dog
    Monty Dog Posts: 20,614
    Helicoil is probably your only option, particulary if it's a blind hole or you've got no room for a longer screw with nut on the end
    Make mine an Italian, with Campagnolo on the side..
  • nicklouse
    nicklouse Posts: 50,675
    was it an alloy insert that has stripped?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • SHAWPYE
    SHAWPYE Posts: 85
    No alloy insert. Carbon thread from what I can see
  • carbon thread?
    what tri bars?
  • SHAWPYE
    SHAWPYE Posts: 85
    just had them apart and they are actually alloy thread
  • nicklouse
    nicklouse Posts: 50,675
    if it is an alloy insert there way not be enough material for fixing.

    if it is an alloy stem with a carbon sleeve over it may be fixable.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • SHAWPYE
    SHAWPYE Posts: 85
    the half of the clamp with the thread is solid alloy and the other half of the clamp in carbon. Significant difference in weight between the two.

    Probably going to buy heli coil kit to fix
  • Monty Dog
    Monty Dog Posts: 20,614
    I'd put some epoxy on the threads of the helicoil when inserting to improve 'hold' - you'll need to run a tap or screw through to stop bunging up the threads
    Make mine an Italian, with Campagnolo on the side..
  • SHAWPYE
    SHAWPYE Posts: 85
    Cheers Monty, I will take that into account