Re: [Classicrendezvous] Campy crank arm question


Example: Production Builders:Tonard

From: Jmschaer@aol.com
Date: Sun, 26 Nov 2000 10:51:42 EST
Subject: Re: [Classicrendezvous] Campy crank arm question
To: mbikealive@earthlink.net
CC: classicrendezvous@bikelist.org


In a message dated 11/25/00 5:19:16 PM Eastern Standard Time, mbikealive@earthlink.net writes:
> > I have a Campy crank arm (left) that the dust cover doesn't screw in until
> > flush, it's about one thread short of flush. I checked the threads on the
> > arm and they weren't cut deep enough. What size tap would be required to
> cut
> > the threads a little deeper?
> >
> > David Goerndt

I'd be inclined to recommend shaving down the dust cap length rather than trying to cut new threads in the arm. The tap will probably cut some new material from the existing threads as well as new threads. This will leave unanodised aluminum exposed. You might find the dust cap siezed in place in time. Depends on other factors, of course, but I'd rather experiment with the cap than the arm.

Jon Schaer