brake problem

[rocco16v at netzero.net (L F)]

If you've checked for brake fluid leaks at each of your wheels and found none....then Brian is on the right track.

Larry
  ----- Original Message ----- 
  From: Decker 
  To: scirocco-l@scirocco.org 
  Sent: Wednesday, July 09, 2003 10:13 AM
  Subject: Re: brake problem


  Hi Ryan;
      I think you need to invest in a new master cylinder. I have rescued many
  Rabbits, Sciroccos etc and almost always if you have to do much brake work
  and bleeding of the brakes the master cylinder goes south. The only time I
  would even consider using a used M/C is when I knew it had been in service
  for say less than a year. I think the bore roughs up in the area past normal
  bottom brake pedal use and when you bleed it scores the rubber in the M/C
  and then the brake fluid bypasses.
      I learned this the hard way and the second time you change the M/C and
  do a full bleed your flat rate is shot ( Not that I ever make flat rate).
  ALWAYS buy a NEW M/C.
  Brian Decker
  ----- Original Message -----
  From: "Ryan Ruggles" <ryanruggles@uniserve.com>
  To: <scirocco-l@scirocco.org>
  Sent: Wednesday, July 09, 2003 9:27 AM
  Subject: brake problem


  > I just put in a used brake master cylinder into my rabbit Gti.  I bled the
  system.  It seems to brkae normally at first but If I keep my foot on the
  peddle for more then a few seconds the peddle goes down further like it
  loses pressure.  Could I still have air in the lines?  I didn't "bench
  bleed" it and I don't exactly know what bench bleed means.  Any ideas?
  >
  >
  > Ryan
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