You have in hand, perhaps one of the rarer
pieces of late model Triumph GT6 rear swing-arm
and rear brake system. Vintage 10/72-11/73
The brake drums are larger and wider as well on
some. This was the setup with the vacuum booster
on the front brakes.
You can see a whole setup, and perhaps the only
documents on the web, (even the owners handbooks
don't show these brake setups )
http://www.teglerizer.com/triumphstuff/73gt6br_selfadjust.htm
It's what I have on the rear of Big Red, built date 11/72.
Paul Tegler
ptegler@cablespeed.com
www.teglerizer.com
----- Original Message -----
From: "Daniel Parrott" <parrotthead01@comcast.net>
To: "spit" <spitfires@autox.team.net>
Sent: Tuesday, April 22, 2003 6:38 PM
Subject: Auto Brake Adjusters?
> I was stripping down a spare set of half-axels today and found something
> curious. Apparently, Triumph included some automatic brake adjusters in
> their rear drums. I found a different sort of wheel cylinder, one with a
> removable wheel with teeth. The teeth apparently were moved by an
extension
> of the parking brake lever, rotating a wheel, which extended one side of
the
> brake cylinder, moving the break shoes outward. It appears that every
time
> the parking brake was enacted, the teeth were moved, and the brakes were
> automatically adjusted. The panel on the lower area of the Brake backing
> plat has two very sturdy rivets holding a closing plate. I've looked and
> several catalogs, and can't find anything like it. All I know is that the
> half axels came from a late 1500 Spit.
>
> With my Spit being a 1980 model, mine has the standard lower adjuster.
Just
> when this feature appear (and disappear)? Is it a good feature to
maintain?
> I could rebuild with the new assembly with little problems.
>
> Anybody else hear of this feature? Should I keep it with the rebuilt
> half-axels? (I would refer to a picture, but my wife left with the
digital
> camera) ;-(
>
> Dan Parrott
> Savannah, Ga
> 1980 Spitfire "PJ"
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