Since over 15 years I use silicone brake fluid in my BGT's brake system.
Works well with the combination disks / drums.
Never failed and the advantage is, that this fluid is not hygroscopic - i.e.
does not attract water.
Cheers,
Hans
71 BGT - soon to see it's country of origin
----- Original Message -----
From: <mgbob at juno.com>
To: <daybell7 at aol.com>
Cc: <mgs at autox.team.net>
Sent: Friday, June 10, 2011 3:58 PM
Subject: Re: [Mgs] Hydraulics
> Hi Steve,
> The '68 and '72 MGBs have brake master cylinders that are difficult to
> rebuild and not continue leaking. Several in my '72 have leaked, rebuilt,
> new,
> new and rebuilt new. Finally I had White Post sleeve a new one. There is
> not
> much paint around the MCs.
> The sleeved new MC does not leak during warm weather, when I drive the
> car
> regularly. During the snow and salt season, it does leak a little.
> My experience with my TD is that DOT 5 leaked whereas the DOT 3 that it
> replaced did not leak. Having spoiled several sets of brake shoes, I had
> White
> Post sleeve all wheel cylinders, and leaks stopped.
> I also think that the answer is to drive the cars more, and to change
> fluid
> every couple of years.
> Bob
>
>
>
> ---------- Original Message ----------
> From: daybell7 at aol.com
> To: mgs at autox.team.net
> Subject: [Mgs] Hydraulics
> Date: Thu, 9 Jun 2011 15:27:43 -0400 (EDT)
>
> MG'ers,
>
> My cars will leak (and sometimes dump) hydraulic fluid from the brake,
> clutch
> master cylinders, and clutch slave cylinders when sitting in the garage
> regardless of the age of the component. It seems I am always rebuiding or
> replacing the units. Many times if I pump the pedal and drive the problem
> disappears.
>
> I use DOT 3/4 brake fluid, and was wondering if a switch to DOT 5 would
> minimize the leaking? I think the real answer is to drive the cars more.
> Thanks in advance.
>
> Steve Hughes
> Gainesville, FL
> 68 BGT
> 72 MGB
> 73 TR6
> 59 Morris Minor
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