RE: [CR]Campy #660 braze-on control boss - repair or should I replace?

(Example: Framebuilders:Brian Baylis)

From: "David Bilenkey" <dbilenkey@sympatico.ca>
To: <classicrendezvous@bikelist.org>
Subject: RE: [CR]Campy #660 braze-on control boss - repair or should I replace?
Date: Tue, 12 Aug 2003 15:45:17 -0400
In-Reply-To: <001501c36109$2f874520$03000004@cinci.rr.com>


Couldn't you repair the threads with a Helicoil? Or is it some obscure threading?

http://www.emhart.com/products/helicoil.html

I've used lots of them over the years, on all sorts of things, I think the last one was on stripped threads on an early 60's Campy FD cable clamping bolt hole.

David Bilenkey Ottawa, Ontario, Canada


> -----Original Message-----
> From: classicrendezvous-bounces@bikelist.org
> [mailto:classicrendezvous-bounces@bikelist.org]On Behalf Of Steve Neago
> Sent: August 12, 2003 3:38 PM
> To: classicrendezvous@bikelist.org
> Subject: [CR]Campy #660 braze-on control boss - repair or should I
> replace?
>
>
> Hello,
>
> I have a Raleigh Team Pro frameset with a Campy #660 control boss
> that needs minor repair. Apparently, the previous owner managed
> to strip the threads on the right side control boss by inserting
> misalligned the #604/1 adjusting wing nut. The result is that
> the downtube shifter wing nut will screw in, but not tighten
> properly & causes unwanted gear changes.
>
> Do you have any suggestions on how I repair/redo the control boss
> threads without having to repalce the complete control boss? I
> can purchase a metric tap set, but the original threads are
> probably too loose. I do not want to have to glue the adjusting
> wing nut into the control boss. Also, I prefer not to use
> handlebar fingertip shifters.
>
> Any suggestions?
>
> Thanks, Steve Neago
> Cincinnati, OH