Andrew - something like 35 years experience with these brakes, never, ever, seen that happen.
Anything's possible, but trying to troubleshoot by internet is all about elimination of the most possible/likely possibilities.
markp
-----Original Message----- From: Andrew R Stewart [mailto:onetenth@earthlink.net] Sent: Sunday, November 22, 2009 7:14 PM To: Mark Petry; 'michael haddad'; classicrendezvous@bikelist.org Subject: Re: [CR] Strange behavior of NR brake quick release? More pieces ofthe puzzle
Mark- In a perfect world you might be right but I've seen what the right application of vibratory force can do to an otherwise locked over center device. I watched a lock smith break out of my shop with nothing more then a
screwdriver and about 15 minutes of violent shaking and yanking on the door handle. He was sweating when the latch went "click". He mentioned with old and loose door locks this was his first method.
<classicrendezvous@bikelist.org> Sent: Sunday, November 22, 2009 9:58 PM Subject: Re: [CR] Strange behavior of NR brake quick release? More pieces ofthe puzzle
> Michael, I don't think that carbopaste, valve grinding compound, red
> locktite, or crest toothpaste will matter here.
>
>
>
> The design of this thing is such that when the QR is fully closed, it is
> over center in such a way that tension from the brake cable cannot cause
> it
> to open. If it's all assembled correctly, then the only possible answer
> is
> that for some reason, you're not closing the QR fully. Dirt or wear
> could
> be the culprit, or there's something else that we don't know about.
>
>
>
> Never seen a Campy QR open under braking. Suggest you disassemble, clean
> and re-grease, and re-assemble correctly.
>
>
>
> Mark Petry
>
> Bainbridge Island, WA
>
>
>
Andrew R Stewart
Rochester, NY