The one thing with the tandem master system that I sort of like and wish I
could have with my single line braking system is the hydraulic pressure
warning lamp that lets you know that unless your emergency brake is in great
shape and you've got a strong arm, you're about to die.
It would be nice to know that there was a problem looming. Even five
seconds of warning could make all the difference in the world. Too bad
there isn't some sort of sensor that could be attached inside the M/C
reservoir that lets you know when the fluid drops below a certain level.
Best wishes,
Jeff in San Diego
'67 RHD Spitfire Mk3 aka "Mrs. Jones"
Jeff's Classic '67 Spitfire Mk3 site
http://www.ohms.com/spitfire/spitfire.shtml
home of the NEW Totally Triumph Auction
"By Triumph enthusiasts, for Triumph enthusiasts"
http://www.ohms.com/cgi-bin/TRauction.cgi
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----- Original Message -----
From: Barry Schwartz <bschwart@pacbell.net>
To: <triumphs@autox.team.net>
Cc: <spitfires@autox.team.net>
Sent: Thursday, April 27, 2000 6:16 AM
Subject: Re: Dual master cylinder
>
> While it's admirable to want to upgrade braking, especially for safety
> reasons, I for one don't see why one would want to convert to a more
> complex system. ESPECIALLY one that in my own experience is shown to not
> work reliably. And one with THREE cylinders. Whew, just something else
to
> leak!
> Seriously, I've had a couple of failures of the tandem master system and
In
> EVERY case the pedal went to the floor. No reserve braking, no half
pedal,
> just complete loss of braking (thank god for the parking brake, however
> limited it is in braking force)
> Frankly I understand the principle of operation, but in practise it would
> appear to not work as claimed. Whenever I've had to bleed the brakes,
> cracking only one bleeder at a time (which would seem to be a classic case
> of one system failure), the pedal, again, goes to the floor. This to me
> indicates NO braking not just partial braking.
> So I've always had serious doubts about the actual effectiveness of the
> tandem master/(supposably) separate braking systems. The completely
> separate twin cylinder setup would in my opinion, be a much more reliable
> system (a little more costly, slightly more complex and probably why
> manufacturers didn't go with them) as far as safety failure modes go, but
I
> don't think I go with three - If you had a failure of the main cylinder
you
> are basically back to a single system and there are a plethora of orifices
> to leak from!
>
> Barry Schwartz (San Diego) bschwart@pacbell.net
>
> 72 PI, V6 Spitfire (daily driver)
> 70 GT6+ (when I don't drive the Spit)
> 70 Spitfire (long term project)
>
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