Re: [CR]Stress relieving Campagnolo cranks


Example: Events:BVVW

Date: Tue, 20 Nov 2007 09:25:12 -0500
From: "Norm and Val Lafleur" <nvlafleur@verizon.net>
Subject: Re: [CR]Stress relieving Campagnolo cranks
To: "LTravers" <lat7575@swbell.net>, "Classic Rendezvous" <classicrendezvous@bikelist.org>
References: <4742DB6E.8030300@swbell.net>
reply-type=response

I just did one yesterday. I used a 5/32" chainsaw file and worked from each side of the spider/crank arm junction until the sharp edge was flattened and the crack removed. It would have been easier using a smaller file and would have less risk of scratching adjacent areas.

My questionis: if a crank has started to crack and the cracks are filed out, is it safe to continue using it? I'm assuming that if the crack and stress riser are removed the crank is safe. Is that correct?

Norm Lafleur
Ashfield, Ma.


----- Original Message -----
From: "LTravers"
To: "Classic Rendezvous"
Sent: Tuesday, November 20, 2007 8:04 AM
Subject: [CR]Stress relieving Campagnolo cranks



> Greets all:
>
> I have a Super Record crank with the famous spider cracks. I have an idea
> of how to do the stress relief filing, but have never actually done it.
> From a search of the archives, it appears no one has shared this
> procedure. Would anyone care to share their experience and perhaps place
> a picture somewhere out on the web of the finished product?
>

> Thanks

>

> --

> Lynn Travers

> Hazelwood, MO