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RE: Brake System Conversion TR4A to TR 6 Dual System

To: "Triumphs" <triumphs@autox.team.net>
Subject: RE: Brake System Conversion TR4A to TR 6 Dual System
From: "Randall Young" <ryoung@navcomtech.com>
Date: Sun, 8 Dec 2002 12:00:46 -0800
> I'm going to convert the
> Braking System on my TR4 A from the original single master
> cylinder system to
> the dual master cylinder system of the TR 6. I'm not concerned about the
> originality thing and think the additional piece of mind offered by a dual
> system makes sense from a safety point of view and since it's
> time to do the
> system again anyway why not upgrade it at the same time. Apart from the
> obvious changes needed to the pedals, the mounting brackets
> installation and
> clutch master cylinder changes does anybody have any "been there
> done that"
> experiences to offer? I do plan on using the power assist and piping the
> vacuum from the intake manifold PCV port as that was changed to a free
> breathing system years ago and is currently plugged. Apart from that the
> question then becomes do I need to install the dreaded ???? valve or just
> plumb the connections directly to front and back. Will removing
> the valve from
> the system do anything to the safety features of the system other than to
> remove a failure light trigger?

Jerry, I haven't tried it (yet), but removing the PDWA should not be a
problem since you're making up new lines anyway.  It's only purpose in life
is to run the dash light.

Randall

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