Brake master cylinder

[jlagnese at massed.net]

I have one that was suffering from the brake freeze
up. Its just been sitting in my garage for a couple
of years.

John
---- Original message ----

  Date: Thu, 1 Dec 2011 10:17:50 -0500
  From: "Jay Kempf" <jkempf at madriver.com>
  Subject: RE: Brake master cylinder
  To: "'Bernie Benz'" <b.benz at charter.net>
  Cc: PeterBergin at aol.com, 200q20v at audifans.com
  >
  >Gotta find a used master cylinder to rebuild. The
  only one I have found so
  >far is in Germany. Got nothing to measure right
  now without disabling the
  >car.
  >
  >
  >
  >
  >jfk
  >
  >
  >-------------------------
  >Jay Kempf
  >jkempf at madriver.com
  >802 272 5868
  >
  >
  >
  > _____
  >
  >From: Bernie Benz [mailto:b.benz at charter.net]
  >Sent: Thursday, December 01, 2011 10:15 AM
  >To: jkempf at madriver.com
  >Cc: PeterBergin at aol.com; auditony at gmail.com;
  200q20v at audifans.com
  >Subject: Re: Brake master cylinder
  >
  >
  >So, just go do it! Talk won't do it.
  >
  >On Dec 1, 2011, at 6:14 AM, Jay Kempf wrote:
  >
  >
  >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.
  >
  >
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