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  1. #1
    Senior Member
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    seized bottom bracket

    I put a square taper bottom bracket in my bike and it kept coming loose. The vendor told me to wrap the threads with teflon tape approximately 6-7 times. I reinstalled the bottom bracket which was a little tough getting on (big mistake). Bottom line: its seized and the park tool is stripping out the aluminum cups. How might I get this thing out?

  2. #2
    Senior Member capwater's Avatar
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    Too much tape. 3 revolutions max, I use teflon tape every day at work, no need for that much. You obliterated the threads. Get a dremel and start cutting it out. You might try bolting the BB tool in place using the spindle, could get you a tighter/better fit.

  3. #3
    Senior Member Retro Grouch's Avatar
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    Before you start cutting stuff, find a bolt that has the same thread as your BB spindle. Use it to loosely hole your BB remover flat against the BB splines. Then you can use a big wrench or maybe a cheater bar and it'll come right out.

  4. #4
    Elitist Troglodyte DMF's Avatar
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    Quote Originally Posted by capwater View Post
    Too much tape.
    OR the tape let it cross-thread. (More likely IMO.)

    If a BB is torqued properly it won't keep loosening. Address the problem at its source.
    Stupidity got us into this mess - why can't it get us out?

    - Will Rogers

  5. #5
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    The bolt you need is M8x1.0 about 40 or 50 mm long. This is a finer thread pitch than most common M8 bolts so you will need to find a well equipped hardware of home store.

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