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Re: Changing Master cylinders

To: "Jim Stuart" <vze3swyy@verizon.net>, "'mgb-v8 list'" <mgb-v8@autox.team.net>
Subject: Re: Changing Master cylinders
From: "Michael Hartwig" <mhartwig@midsouth.rr.com>
Date: Sat, 18 May 2002 17:25:47 -0500
References: <000701c1feb3$d6b8a230$210110ac@HOME>
Reply-to: "Michael Hartwig" <mhartwig@midsouth.rr.com>
Sender: owner-mgb-v8@autox.team.net
I already have a 10mm X 1.0 adapter for my brembo's and it fits perfectly.
I even took the old male fittings to a thread gauge.  1.0mm thread fits
exactly.  I've tried 28 ,27 , 26 and 24 TPI gauges.  The 26 was the only
that fit almost as nice as the 1.0, but I know of nothing that takes a 26
TPI thread.  British pipe is 28, and Whitworth doesn't come close, unless my
sources are incorrect.

My only conclusion is that it is a 10mm X 1.0mm bubble flare.

I have to go to AN due to the difference in fittings I have.  The wilwood
calipers have 1/8" pipe thread and the Brembo's have a metric flare.  AN is
the only thing I can get in common with everything.    There will be nothing
left of the standard brakes after i'm finished.

Barry: I already have a nice Rigid AN flaring tool, and stainless in small
sizes is easy to bend with a bending tool.  The fuel line will be replaced
and a return line will be run in stainless as well.  I could have gone with
regular bundy tubing, but what the heck.  I luv stainless. :)

Oh well off to autozone, looks like a Mustang 5.0 MC may do the job.  Keep
your fingers crossed.

Mike


> Those are not metric threads, at least not by intent. I believe they are
> either Whitworth or British Pipe Thread. In either case, use the original
> nut & bubble flare the line. An A & N flare will not fit any brake fitting
I
> know of on a British car. Why did you start with the A & N?
>
> Jim Stuart
>
> Reply to <jimbb88@usa.com>
>
>
> -----Original Message-----
> From: owner-mgb-v8@autox.team.net [mailto:owner-mgb-v8@autox.team.net]On
> Behalf Of Michael Hartwig
> Sent: Saturday, May 18, 2002 3:26 PM
> To: mgb-v8 list
> Subject: Changing Master cylinders
>
>
> More headaches.  Trying to replumb the brake lines with stainless tubing.
> The
> crazy Brits used a metric thread in the master cylinder, so I have to use
an
> adapter fitting to go to an AN flare.  By the time I put the adapter on,
the
> brake line will not fit between the body and cylinder.
>
> Has anyone replaced their master cylinder?  I've looked at the aftermarket
> cylinders, but their mounting flange is vertical.  Other problem is the
> brake
> booster.  Most cylinders i've seen have the rod attached to the cylinder,
> not
> separate like in the B.
>
> I remember someone converting to a dual cylinder, but I can't find the
site.
>
> Any ideas?

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