Stuck stem?

Discussion in 'Bicycle Mechanics and Repairs' started by Alex11, 5 Aug 2012.

  1. Alex11

    Alex11 Active Member

    Location:
    South West
    Quill stem is stuck in an old Dawes 70s racer.

    Any ideas?
     
  2. accountantpete

    accountantpete Legendary Member

    Undo the bolt so that its head peeks out above the stem and then give it a good whack (taking care to avoid hitting the stem).
     
  3. OP
    OP
    Alex11

    Alex11 Active Member

    Location:
    South West
    give what a whack?
     
  4. Scilly Suffolk

    Scilly Suffolk Über Member

  5. OP
    OP
    Alex11

    Alex11 Active Member

    Location:
    South West
    OK I'll give it a go. Why will this work (if it does) ?
     
  6. compo

    compo Veteran

    Location:
    Harlow
    The fixture the bolt screws into has a tendency to seize with rust and/or corrosion. Undoing the bolt a few threads and giving it a good smack can release the seized wedge. Some stems have a wedge and some a taper that pulls up inside the stem to expand it. Both types can seize.

    Quill_stems.JPG
     
  7. OP
    OP
    Alex11

    Alex11 Active Member

    Location:
    South West
    Hi I did what you suggested - undid the bolt a little, whacked it with the hammer, something seemed to loosen or come free. I had a look through the bottom of the forks and it seems there is a piece of metal with a threaded hole in the middle, presumably for the bolt to go into?, which is loose inside there.

    What next?
     
  8. accountantpete

    accountantpete Legendary Member

    If you still have the bars attached - you need to pop the forks in a vice and then gently turn the bars. There should be a bit of movement.
     
  9. OP
    OP
    Alex11

    Alex11 Active Member

    Location:
    South West
    Brute force with the hammer did it! It's out and so is the wedge thingy ma bob
     
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