I would dispute that the reason the seals appear to work better after a few
weeks is because of any swelling of the seals and from my experience I have
never noticed a difference in a few weeks after having installed new seals
in a system. Maybe others have or perhaps it's a perception. Often times
perceptions become fact whether accurate or not.
>From a purely technical point of view I do not agree that the seals swell
and therefore work better. If assembled dry and then eventually they get
lubricated with brake fluid then perhaps there would be some slight
resistance change but I doubt it could be noticed by the operator.
JVV
----- Original Message -----
From: "Jim Muller" <jimmuller@pop.mail.rcn.net>
To: <Triumphs@autox.team.net>
Sent: Monday, October 13, 2003 1:21 PM
Subject: Re: Leaky Brake Master
> On 13 Oct 2003 at 13:02, Gerald M Van Vlack wrote:
>
> > I'd like to stop an assumption that might be promoted by this response
and
> > it's not intended as a criticism of Jim personally.
>
> Not taken as such!
>
> > I suspect that Jim is repeating what he has
> > heard from someone else.
>
> Absolutely right, which is why I used the word "supposed" and its
> derivatives, and why I hedged the claim asbestos I could. :-)
>
> > The proper rubber seals do not swell when in
> > contact with brake fluid.
>
> However, my experiene with new rubber parts for hydraulic stuff
> (brakes, clutch) has always been that they "work better" after a few
> weeks than when immediately installed. The supposed cause has been
> stated here by others with far more experience than I have, that
> swelling of the seals is the reason.
>
>
> --
> Jim Muller
> jimmuller@pop.rcn.com
> '80 Spitfire, '70 GT6+
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