Hey Tony - Thanks for the info/experience. The attempted adjustment I
reference was done with the brake booster off the car (booster in/out lines
are hooked together with tubing/fittings), but I didn't drive it, just spun
the wheels and applied the brakes with the car off the ground. The booster
is off the car due to the fact that it went out and all the fluid was sucked
out of the master cylinder into the manifold (or the booster vacuum chamber)
and I had no brakes (no duh). I sent the booster to CA this week for a
rebuild. Maybe the booster problem caused the rear brakes to stay engaged,
but if so I'm confused by the following 1) why didn't/doesn't the issue show
up with the front calipers as well, and 2) why does the issue continue with
the back shoes after bleeding and adjustment with the booster off the car.
I'm copying the list again with this add'l info.
Thanks again,
Brad Hall
B382000609LRXFE
From: Tony Somebody [mailto:achd73@yahoo.com]
Sent: Friday, April 16, 2010 10:50 PM
To: Hall Motors
Subject: Re: [Tigers] Rear Brake Shoe Drag
Brad- one thing the brake booster does is not release the brakes after using
them or it sucks the brake fluid thru the vaccum hose and into the engine.
You can disconnect the brake booster from the vaccum and the prolem will go
away- to do it properly they sell a by pass hose. I have a S6 which hasnt
been dive much since I bought it and the first thing it did was the booster
started holdin the brakes on- You can kill the vaccum, so the brakes release
by pumping the brakes with the engine off- so IF I have to stop, I use the
e-brake and downshit OR if I have to use the brakes in addition, I kill the
engine, pump like hell, restart and go again- I have used them at road speed
and killed the engine- put it in neutral and pump the brakes- restart-
downshift to proper gear and drive BUT the car hasnt been drivien in a long
time- that needs fixed as I paid big bucks for this S5- its tha nice-
orginally a Ca. car. Just have to many beams and medical problems - do good
just keeping the Tiger going BUT Im going to win the lotto and my $$$
probelms will be over and someone else can fix my toys. LOL
Of course if you dot have a booster than this is all moot but thats how my
stuck brakes on more than one beam have reacted etc.
Cheers, TonytheTiger
--- On Fri, 4/16/10, Hall Motors <hallmotors@cox.net> wrote:
From: Hall Motors <hallmotors@cox.net>
Subject: [Tigers] Rear Brake Shoe Drag
To: tigers@autox.team.net
Date: Friday, April 16, 2010, 9:34 PM
Rear shoes (especially driver side) stay engaged against drum (i.e.
drag/lock) after engaging the brakes with the brake pedal. Even after
adjusting the shoes off the drum via the square head brake adjuster bolt on
the vacuum plate, engaging brakes with pedal will reintroduce the drag/lock
condition. The brake system (actually the whole car) is original
configuration. The car has sit for several months at a time over the last
two years. I've inspected the shoes (fine) and bled the system. I'm
thinking there may be some crystallized fluid (due to moisture absorption)
in the wheel cylinders, but wanted to know if any of you guys have had the
same problem or have other ideas before I tear into the cylinders.
Thanks,
Brad Hall
B382000609LRXFE
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