[urq] Brake servo overhaul

[Patrick Carlier]

One thing I can tell you .
Don't bother to contact ATE .
I recently tried to obtain some seals for an ATE
master cylinder .
I had the part numbers and all .
No avail . The only thing i coud do was buy a whole
new one .

But I think if you take that broken part to a
decent machine shop , they ought to be able to reproduce it in aluminium .

I have a lathe , and I could give it a go , but I'm in europe .
I'll take a look later on to see if I have a spare that I can use as a model
;

Patrick


----- Original Message ----- 
From: "Eric Renneisen" <racingiron at comcast.net>
To: "'Urq'" <urq at audifans.com>
Sent: Thursday, March 03, 2005 4:01 AM
Subject: [urq] Brake servo overhaul


> Hoping to fix both the hemorrhaging brake booster and replace the leaky
> proportioning valve, I dove under the hood this evening.  For the
> booster, I was armed with Sean's instructions
> (http://www.quattro.ca/Urq/Brake_servo_guide.pdf) and a seal kit from
> Sport Wheels.
>
> Things went great until the very end.  I had cleaned everything and put
> on all the new o-rings.  The final piece was the tiny oil seal in the
> end of the plastic cap.  While pressing the old seal out, the cap broke.
> See results here:
> http://home.comcast.net/~racingiron/booster1.jpg
> http://home.comcast.net/~racingiron/booster2.jpg
> The seal is a tight fit, and getting it past the tapered end of the cap
> took too much force.  Even if it hadn't broken, I'm not sure if the new
> one would've gone in cleanly.  Maybe the freezer trick would've done it?
> Anyone got any BTDT tips for R&R of this thing?
>
> The cap has an Ate number on it, but I'm not expecting to be able to
> find a replacement.  I don't really feel good about spending $500 on a
> new servo.  Does anyone have an old booster they'd like to get rid of?
> I'd prefer an aluminum one so I can use the same seal kit I've already
> got, but I really just need an identical end cap (provided I can replace
> the seal without breaking it again).
>
> After finishing my stream of obscenities I was in no mood to replace the
> prop valve.  I was really looking forward to getting her back on the
> road...
>
> Eric Renneisen
> '93 S4
> '90 CQ 20V
> '86 garage art
> '85 urq
> Chattanooga, TN
>
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