Cross threaded BB shell - HELP!

ratsbeyfus
Posts: 2,841
Hi
I've managed to cross-thread the BB shell on a brand new track frame when trying to install the BB. :oops: My LBS says that they will try and tap out the threads, but can't do it 'til next Thursday... meanwhile I have an anxious wait.
Anyone else experience this? If LBS isn't successful are there other alternatives, or will frame be scrap?
Any help/advice/reassurances much appreciated.
I've managed to cross-thread the BB shell on a brand new track frame when trying to install the BB. :oops: My LBS says that they will try and tap out the threads, but can't do it 'til next Thursday... meanwhile I have an anxious wait.
Anyone else experience this? If LBS isn't successful are there other alternatives, or will frame be scrap?

Any help/advice/reassurances much appreciated.
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Comments
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ratsbeyfus wrote:Hi
I've managed to cross-thread the BB shell on a brand new track frame when trying to install the BB. :oops: My LBS says that they will try and tap out the threads, but can't do it 'til next Thursday... meanwhile I have an anxious wait.
Anyone else experience this? If LBS isn't successful are there other alternatives, or will frame be scrap?
Any help/advice/reassurances much appreciated.
It could possibly be bored out and re-sleeved, expensive and not always possible.
Alternatively a threadless bottom bracket.
http://www.sjscycles.co.uk/prestine-threadless-68mm-sealed-bearing-bottom-bracket-for-frames-with-damaged-threads-prod16505/0 -
It depends on how much damage you did when you forced the BB cup in, but I doubt it was very far, and you've probably only damaged the first couple of turns of thread. If they tap it out there is a very good chance that all will be fine.0
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ratsbeyfus wrote:
Any help/advice/reassurances much appreciated."Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
Thanks for replies - I particularly like the look of the threadless BB as a fix if the worse comes to worse. Anyone have experience of them?0
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nicklouse wrote:ratsbeyfus wrote:
Any help/advice/reassurances much appreciated.
PP0 -
It is sometimes possible to "repair" a damaged thread with a small screwdriver. Look to see where the thread is damaged and use the screwdriver to push the thread back in line. When it looks good fit an old steel cup in and out a few times with some grease on to smooth the thread.
It's useually the cups that get cross threaded and not the shell (on steel frames)
Chris0 -
Thanks CPeachy... my frame is aluminium so perhaps the threads in aluminium shells are softer. Will wait to see what lbs do before going near it with any tools again.0