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 Post subject: Stuck bar end shifters
PostPosted: Sun Dec 30, 2012 7:04 pm 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
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Location: NOTTINGHAM
Evening people, I trust I find you all in good spirits.

I'm attempting to swap over Campag aero bar end shifters from some ITM TT bars to some Cinelli ones - on paper a simple and swift job. Alas, said shifters have been in the bars for over 10 years and the internal bracket simply will not be moved - soaked with wd40 overnight and will not move a mm.

so, any thoughts on how to get the bracket out from the bars without ruining either the bracket or the bars?? see attached picture - the near side is the bolt attached back into the bracket which is inside the tube, far side is what i'm attempting to remove from these blasted bars!!

thanks and a prosperous new year to all on RB...


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 Post subject:
PostPosted: Sun Dec 30, 2012 7:07 pm 
Old School Grand Master
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Location: Staffordshire
Try something better than wd40. It's a water displacer rather than anything else. Try the same procedure but with Plus Gas.


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 Post subject:
PostPosted: Sun Dec 30, 2012 7:11 pm 
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Iwasgoodonce wrote:
Try something better than wd40. It's a water displacer rather than anything else. Try the same procedure but with Plus Gas.


magic that is precisely the sort of answer i wanted - thankyou very much - i shall order some right now.


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 Post subject:
PostPosted: Sun Dec 30, 2012 8:08 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
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Location: New Forest, UK
I would also try heat shocking it by pouring boiling water over it and the bar tip. Often this will break the bond. A more drastic method is with a blowtorch, but not yet, gently doesn't it.


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 Post subject:
PostPosted: Sun Dec 30, 2012 8:10 pm 
Old School Grand Master
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hamster wrote:
I would also try heat shocking it by pouring boiling water over it and the bar tip. Often this will break the bond. A more drastic method is with a blowtorch, but not yet, gently doesn't it.


Try this first? You never know. You only need the two materials to expand at very slightly different rates and out it'll pop.


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 Post subject:
PostPosted: Sun Dec 30, 2012 8:23 pm 
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boiling water was the first point of call - that's when I knew I was in for trouble getting the shifters out. really don't want to chop the bars up so it's plus gas or broke I reckon. will await the postman to deliver then leave it overnight and hopefully i'll be in business. doesn't help that the bracket is fairly deep down into the bar-ends - not the best design in the world given it's not something that needs servicing as such!


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 Post subject:
PostPosted: Sun Dec 30, 2012 9:00 pm 
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Joined: Tue Oct 09, 2007 1:55 pm
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Location: New Forest, UK
I've only ever dismantled the Shimano ones, but IIRC you have to tap the bolt in a little to break the wedge effect like a threaded stem. You have probably done this already if you are past the boiling water stage... :?


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PostPosted: Sun Dec 30, 2012 9:14 pm 
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hamster wrote:
I've only ever dismantled the Shimano ones, but IIRC you have to tap the bolt in a little to break the wedge effect like a threaded stem. You have probably done this already if you are past the boiling water stage... :?


certainly did try that - haven't got much room to play with as the bracket is quite far into the bars. it moves further into the bars but when I try and pull outwards it gets stuck again, which is massively frustrating!

such a simple job and yet one of the most annoying things i've tried in a while - simply shouldn't be this much hassle

:roll:


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