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PostPosted: Sat Jun 29, 2013 10:05 am 
Gold Trader
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Joined: Tue Jan 19, 2010 7:53 pm
Posts: 3068
Location: Northumberland
Hey, My dad and I have recently put a bottom bracket into his 02 Sworks fsr and we've came to the conclusion its the wrong one as its damaged (not stripped) the threads on the drive side. The threads still hold just not very well. Is there anything that can be done to fix the threads? Many thanks Rob


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PostPosted: Sat Jun 29, 2013 10:28 am 
Gold Trader
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Joined: Wed Jun 20, 2007 11:19 pm
Posts: 7006
Location: Odense, Denmark
What BB are you trying to fit?

Once alloy threads are damaged you can't do much with them that's not going to require some serious metalwork....

YOu could try fitting another chainset. Bearing cups on SHimano HTII seem to be tighter than the Hollowetch and square taper versions. But get the threads chased first so you don't compound the issue and use a threadlock when fitting. Also - it's pretty impossible for them to work loose due to the way the whole system fits together.


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PostPosted: Sat Jun 29, 2013 10:38 am 
Retro Guru
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Joined: Sat Apr 02, 2011 11:16 am
Posts: 799
Location: Camden, London
no idea in relation to anything after square taper cranks, but before when the threads were knackered could permanently fix the fixed cup which is what I have done in an old Carlton as want to use ISO cranks so limited sealed alternatives, or could permanently fix in a sealed bb or use a threadless one

http://compare.ebay.co.uk/like/19082160 ... =65&ff19=0


Last edited by daugs on Sat Jun 29, 2013 10:54 am, edited 1 time in total.

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PostPosted: Sat Jun 29, 2013 10:49 am 
Gold Trader
Gold Trader

Joined: Tue Jan 19, 2010 7:53 pm
Posts: 3068
Location: Northumberland
Thanks for the replies. The bottom bracket we now think we need( and have bought) is a 73mm Shimano es51 e type. Thanks Daugs I'll have a look at that link.


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PostPosted: Sat Jun 29, 2013 10:56 am 
Gold Trader
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Joined: Wed Jun 20, 2007 11:19 pm
Posts: 7006
Location: Odense, Denmark
ES51 is one of those with steel threads that you'll find easy to wind in but will probably come loose again, sadly.


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PostPosted: Sat Jun 29, 2013 11:01 am 
Gold Trader
Gold Trader

Joined: Tue Jan 19, 2010 7:53 pm
Posts: 3068
Location: Northumberland
I've just called one of my local bike shops and he said he could have a go at retailing it as he has a tool to do that. So that might be worth a go?


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PostPosted: Sat Jul 06, 2013 9:41 pm 
MacRetro rider
MacRetro rider

Joined: Thu Jul 31, 2008 1:45 pm
Posts: 2614
Location: Near a tree, by a river in a hole in the ground....
Argos can helicoil BB's if it gets that bad, had my Bullitt done in 03 after the bb worked loose and killed the threads....

10 years on and they are as strong as the day they were done.


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PostPosted: Sat Jul 06, 2013 10:39 pm 
Retro Guru

Joined: Tue May 06, 2008 4:24 am
Posts: 713
Location: Edinburgh
eastside bikes in edinburgh repair them for £50

you might need to phone them for postage quote
http://eastsidebikes.com/repairs


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PostPosted: Sun Jul 07, 2013 3:14 pm 
Gold Trader
Gold Trader

Joined: Tue Jan 19, 2010 7:53 pm
Posts: 3068
Location: Northumberland
Cheers Mick, were only about an hour and a half away from Edinburgh. Sounds good. It seems to be holding well at the minuite but we will see!


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PostPosted: Mon Jul 08, 2013 11:03 am 
retrobike rider
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Joined: Sun Dec 18, 2011 10:42 pm
Posts: 2189
Location: milton keynes
I used a bmw epoxy to put a bb in on a frame that had no threads (stripped beyond repair). it was on an alloy focus frame with a steel shimano bb. the epoxy was designed for gluing the alloy front ends to the steel bulkhead on m5,s and after 24 hours i got my 18 stone mate to take it off road. not a murmur from it. obviously its a 1 hit wonder though.


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