[urq] Brake Booster

[Pasqualoni, James E]

Had the same experience.  Moved to G60's up front and urS4/S6 vented rotors
in back, and that left me with much greater pedal travel than the stock
setup.  A switch to the MC used in European UrQ's equipped with G60's did
the trick.  Don't have the p/n handy, but let me know if you need it.

Jim

-----Original Message-----
From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On Behalf
Of Thatcher Hubbard
Sent: Thursday, May 12, 2005 6:07 PM
To: Urq List
Subject: Re: [urq] Brake Booster


Eric has become wise in the ways of Urq-dom in only a few months.

Someone on this list told me that he went to stainless steel brake lines to
firm up the pedal feel after a G60 conversion.  It would make sense that
they would feel spongy without a master cylinder change as well.

On 5/12/05, Eric Renneisen <racingiron at comcast.net> wrote:
> Mike wrote:
> > ETKA shows two part numbers for the Brake
> > Booster, 857612107A and 859612107. I was
> > told that the 107A unit is available. Will
> > that work in my early build 83 #459?
> 
> Careful reading of the Family Album will reveal that the 859- P/N is 
> for the '88+ urqs with a different hydraulic system.  The first number 
> you list is correct for the USA.  Hold on to your hat before 
> requesting a price quote, though.  You're not gonna want to spend that 
> kind of dough without a good reason.
> 
> > I've replaced the parts a a preventative
> > measure, and the brakes work ok, but they
> > feel a bit spongey even after bleeding and
> > replacing the brake fluid.
> 
> Spongy compared to what?  If you're used to the stock calipers, the 
> slightly more pedal travel with the G60s might be what you sense.  If 
> not, how did you bleed?  I'd be certain all the air is out before 
> going further.
> 
> > What tells me that the Booster could be on
> > it's way out is that I see a small amount
> > of ATF leaking on the screw/stop located on
> > the bottom of the booster. Any suggestions?
> 
> That ATF leak is simply telling you that you own an urq (they all do 
> it eventually).  The booster isn't dead, it just needs a rebuild 
> (1/10th the price of replacement).  Check archives from a couple of 
> weeks ago.
> 
> Eric Renneisen
> '93 S4
> '86 urq
> Chattanooga, TN
> 
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