Advertise on Bikeforums.net



User Tag List

Results 1 to 11 of 11
  1. #1
    Senior Member
    Join Date
    May 2007
    Posts
    50
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    screw broke in star nut of stem!

    Hi guys, so pissed off this happened didnt even think i tightened it that much. Anyone know how to fix this? Drilling through the screw thats left in the nut to get it out possible?

  2. #2
    Perineal Pressurized dobber's Avatar
    Join Date
    Oct 2003
    Location
    In Ebritated
    Posts
    6,556
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The usual course of action is to pound the existing Star Nut down far enough that a new one can be installed.
    This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.

  3. #3
    Senior Member
    Join Date
    May 2007
    Posts
    50
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    cheers mate. happy i know its fixable now! So, theres no way to salvage the existing star nut?

  4. #4
    Senior Member
    Join Date
    Apr 2007
    Location
    Chili, NY
    My Bikes
    88 Fisher Gemini tandem, 92 Trek 970, 07 Nashbar Frame, 08 Gary Fisher Paragon
    Posts
    734
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Shanners View Post
    cheers mate. happy i know its fixable now! So, theres no way to salvage the existing star nut?
    Not worth the effort.

    I'd just get a new one, drive the old one down or with some pliers pull the old one out.
    A Mess of old bikes...
    92 Trek 970
    08 Gary Fisher Paragon

  5. #5
    Senior Member
    Join Date
    Jul 2006
    Location
    Middle of the road, NJ
    Posts
    2,183
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You could try pounding the buggered star nut all the way out of the bottom of the steerer tube, and then see if you can get the remaining peice of the bolt out. But that is more work than the situation requires. Just get a new star nut and bolt and be done with it.
    And use a torque wrench.

  6. #6
    Mad bike riding scientist cyccommute's Avatar
    Join Date
    Nov 2004
    Location
    Denver, CO
    My Bikes
    Some silver ones, a black one, a red one, an orange one and a couple of titanium ones
    Posts
    15,766
    Mentioned
    18 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by leob1 View Post
    You could try pounding the buggered star nut all the way out of the bottom of the steerer tube, and then see if you can get the remaining peice of the bolt out. But that is more work than the situation requires. Just get a new star nut and bolt and be done with it.
    And use a torque wrench.
    I usually hammer old star nuts all the way out. It just bugs me to know that there's another one down there. Plus, if you bugger another one, it's easier to get a single star nut out but nearly impossible to get out 2 of them
    Stuart Black
    Solo Without Pie. The search for pie in the Midwest.
    Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
    Days of Wineless Roads. Bed and Breakfasting along the KATY
    Twisting Down the Alley. Misadventures in tornado alley.
    An Good Ol' Fashion Appalachian Butt Whoopin'.

  7. #7
    Senior Member ektachrome's Avatar
    Join Date
    Aug 2007
    Posts
    34
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    can you clamp a needle nose locking pliers on to the broken bolt and spin it out?

  8. #8
    Senior Member
    Join Date
    May 2007
    Posts
    50
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Nope :/ snapped completely flush which is fun. Will probably drill out the nut thats in it then, cheers for the help!

  9. #9
    Senior Member
    Join Date
    Oct 2007
    Location
    SoCal
    Posts
    1,144
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    So NOW you know that the top cap is only to preload the headset and there is no reason to apply so much force, RIGHT?????

  10. #10
    Fred-ish rogerstg's Avatar
    Join Date
    Aug 2007
    Location
    Rhode Island
    Posts
    1,801
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by dvs cycles View Post
    So NOW you know that the top cap is only to preload the headset and there is no reason to apply so much force, RIGHT?????
    +1
    Makes you wonder about the condition of the OP's headset.

  11. #11
    Senior Member
    Join Date
    Oct 2007
    Location
    SoCal
    Posts
    1,144
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by rogerstg View Post
    +1
    Makes you wonder about the condition of the OP's headset.
    I've heard of some people trying to load the bearings without loosening the stem first.
    Same end result.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •