Brake master cylinder

[PeterBergin at aol.com]

Can't argue with you on that point, rebuilt a turbo along time ago with the 
 help of a friend. $30.
Always tend to stay away from chicom junk.
 
Kind of depends on how much spare time you have and the amount of down time 
 you can afford.
 
Pete
 
 
In a message dated 12/1/2011 8:15:16 A.M. Central Standard Time,  
jkempf at madriver.com writes:

Depends on what your  tolerance is for cheap chinese rebuilds. Anywhere 
from $100-150 for rebuilds  and $300-$500 for supposed new original parts.
 
Seals are basically  free and the only thing that ever goes bad. I rebuild 
stuff all the time that  supposedly you can't rebuild. I trust my own work 
more than rebuilders. I  rebuilt every hydrualic unit and all of the CIS fuel 
injection stuff in my  928. The fuel distributor was selling for something 
like $1100 new. I rebuilt  it for a handful of free orings from an autoparts 
store near where I live.  Took an hour of measuring.
 


jfk


-------------------------
Jay  Kempf
jkempf at madriver.com
802 272 5868  


 
____________________________________
 From: PeterBergin at aol.com  [mailto:PeterBergin at aol.com] 
Sent: Thursday, December 01, 2011 9:09  AM
To: jkempf at madriver.com; auditony at gmail.com
Cc:  b.benz at charter.net; 200q20v at audifans.com
Subject: Re: Brake master  cylinder



Hate to ask, but how much is a new one.  I bought one from a local  auto 
parts store 12 years ago for an old 5000 avant that preceded my 200 which  
preceded my S6.
 
I was only $75
 
Pete
 
 
In a message dated 12/1/2011 8:05:44 A.M. Central Standard Time,  
jkempf at madriver.com writes:

That has not been my experience with 20 year old seals. They turn  to hard 
plastic and stop working like a seal eventually. There are a few  Dorman 
part numbers for kits for different bore diameters for VWs of the  same 
vintage. I just need a MC off the car. For me sourcing seals is not a  problem. I 
have been in the trenches in engineering for decades so I know  how to 
measure and find the right seal even if I don't have a part number.  So back to 
anyone got a dead one they would like to donate to the  experiment? Boils down 
to two lip seals normally in Nitrile Rubber for DOT  3/4. 
 


jfk


-------------------------
Jay  Kempf
jkempf at madriver.com
802 272 5868  


 
____________________________________
 From: Tony Hoffman [mailto:auditony at gmail.com]  
Sent: Thursday, December 01, 2011 8:25 AM
To:  jkempf at madriver.com
Cc: PeterBergin at aol.com; b.benz at charter.net;  200q20v at audifans.com
Subject: Re: Brake master  cylinder



Jay,
 
I'm one that agrees with Bernie on this. Take it apart and clean  
everything, inspect closely. If the rubber is not torn, no reason to replace  it. It 
will seal well, not intermittently. If you can get a rebuild kit, by  all 
means replace everything if you wish. However, they are not available  for any 
of these older Audi's that I'm aware of, and therefore a real PITA  to 
source each little piece. So, I jsut dissassemble, clean out all the gunk  
(which is what is giving you problems IME) and reassemble. 
 
Tony




Jay, DFWAB!
Your MC is probably OK if the pedal  does not go to the floor, however
slowly.
And one does not need  rebuild kits for MC or calipers unless a boot is torn
and needs  replacement.
Just clean the parts well and  reassemble.