Blake,
Am I missing something here? Doesn't the cylinder, during its normal
operation, allow the contact of brake fluid with the piston and the walls of
the cylinder? Why on earth would coating those surfaces with brake fluid
during assembly of the cylinder cause corrosion if the subsequent filling of
the cylinder with fluid during its operation does not do so?
Lawrie
British Sportscar Center
----- Original Message -----
From: Bullwinkle <yd3@nvc.net>
To: <mgs@autox.team.net>
Sent: Tuesday, July 25, 2000 12:55 PM
Subject: Re: Pt. 2: Next lesson: a blown clutch master-cylinder
> The shop manual proceecure for replacing cylinder cups, be it master,
brake, or
> clutch, is to lubricate the seal with brake fluid. I try to avoid this as
it
> leaves brake fluid on the top of the seal where the steel piston touches
and
> also leaves some on the walls of the cylinder which also corrodes the
sides of
> the pistons. I can sometimes assemble the pistons dry, or if necessary I
use a
> dab of rubber grease supplied with the seals or by Castrol. I have
rebuilt over
> two dozen cylinders using the grease without any problems.
>
> Blake
>
>
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