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Re: copper brake lines?

To: svgkm@halley.ca.essd.northgrum.com
Subject: Re: copper brake lines?
From: Thomas the Swede <csp311@telia.com>
Date: Tue, 17 Oct 2000 19:17:15 +0200
Many European made cars have copper/nickel alloy brake lines.
Replacement brake lines are sold as straight pieces, even as OEM
parts. The copper/nickel are sold in different length rolls for the DIY
customers.

Thomas



svgkm@halley.ca.essd.northgrum.com wrote:

> I did some looking into the copper brake line issue after I posed the 
>question, and I think
> that one of the big hangups for copper is the fact that copper is hardened by 
>cold working.
> Any repeated flexing, or even rubbing against a harder surface (say, a frame 
>rail) is
> likely to result in a hard spot, which, as the stress input continued, would 
>be liable to
> crack. There is some debate, from what I've seen, over stainless steel lines, 
>too, because
> the stainless mat'l is harder to form. Since my Roadster and I have always 
>lived in
> California, we haven't had to worry about corrosion from road salt, high 
>humidity, etc. -
> all that nasty stuff that makes automobile ownership in much of the rest of 
>the country
> such an adventure, so mild steel coated mild steel brake lines ar OK.
>
> Gary McCormick
> San Jose, CA
>
> Pamela Pepoy wrote:
>
> > Howdy,
> > Soft material, vibrations = metal fatigue,  woo, woo, whoopee...no brakes.
> > Could be exciting...once.  Or, soft material rubs on harder material...same 
>conclusion.
> >
> > Guy
> >
> > svgkm@halley.ca.essd.northgrum.com wrote:
> >
> > > Anyone know WHY copper brake lines are illegal? I'm guessing it's a 
>strength issue.
> > >
> > > Gary McCormick
> > > San Jose, CA
> > >
> > > datsunmike wrote:
> > >
> > > > Leigh,
> > > >
> > > > Copper lines are illegal in the US. But don't tell anyone as I run 
>copper
> > > > lines.
> > > >
> > > > Mike
> > > > ----- Original Message -----
> > > > From: shifty <shifty@best.com>
> > > > To: roadsters <datsun-roadsters@autox.team.net>
> > > > Sent: Saturday, October 14, 2000 1:06 AM
> > > > Subject: copper brake lines?
> > > >
> > > > > I've been reading Practical Classics again (there is a roadster 
>picture in
> > > > > the Oct issue - kind of hard to find!).
> > > > >
> > > > > They tout the virtues of copper brake lines "to prevent corrosion". 
>Seems
> > > > > like steel lines would be better. I just bent some steel lines and 
>they
> > > > > weren't that hard to do. Is there an advantage to copper?
> > > > >
> > > > > Leigh Brooks
> > > > > BADROC
> > > > >




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