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Re: Brake master cylinder rebuild or buy new?

To: "Max Heim" <>, "MG List" <>
Subject: Re: Brake master cylinder rebuild or buy new?
From: "Hans Duinhoven" <>
Date: Thu, 28 Feb 2002 19:24:12 +0100
I bought a new one in order to avoid any safety risk, but had the original
repaired in a brake specialist shop. This gives me a initial spare when
The shop tested the unit before returning it to me.



'71 BGT

----- Original Message -----
From: Max Heim <>
To: MG List <>
Sent: Thursday, February 28, 2002 7:11 PM
Subject: Re: Brake master cylinder rebuild or buy new?

> If it's really the original MC the inside is doubtless a gooey mess. For
> amount of trouble involved and considering the possibility of overhoning
> creating a poor seal, I would just get a new one. As I recall it is
> particularly difficult to disassemble this MC -- there is a plastic
> piston-thingie (technical term) that tends to get stuck deep in the bore,
> and often has to be drilled or chiseled out.
> on 2/28/02 9:25 AM, Tim Economu at wrote:
> > Hello wise friends.....
> > what do you think? My 1969 probably original brake master cyl has
decided to
> > go "pedal to the medal" and lose braking power. The pedal will go to the
> > floor in about 5-6 seconds after a hard push. Fluid was changed
> > was/is Castrol GMA. No fluid is being lost.
> >
> > Is current wisdom to repair or replace with new? I intend to drive the
> > for the next 30 years so I do not want  a short term fix. Of course
there is
> > a chance the cylinder has already been rebuilt. Is it possible to get a
> > to seal after a couple of rehones? Do you think I should repair, or
> >
> > Is either one a very difficult job, and besides the obvious task of
> > which has been well covered, are there any gotchas?
> >
> > Kind regards,
> >
> > Tim Economu
> > 1969 MGB/GT will slowly fading brakes!!

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