RE: need suggestions for a 'maintinence' brake problem :)

["Neal Tovsen" <ntovsen@piper.hamline.edu>]

Yup. DEFINITELY it, especially considering that you've replaced the wheel
cylinders. I haven't done a master cylinder on a VW, but I'd think you
should be able to get a rebuild kit for it that will have new o-rings and
maybe a new piston. You should also be able to get the cylinder wall honed
to remove any scratches. Do it soon before the cylinder wall becomes too
scratched-up and you need a new one. You might have contaminated brake
fluid.

Neal

> -----Original Message-----
> From: Majordomo [mailto:majord@neubayern.net]On Behalf Of Anthony
> Pelletier
> Sent: Monday, December 21, 1998 11:24 AM
> To: Kevin
> Cc: scirocco-l@scirocco.org
> Subject: Re: need suggestions for a 'maintinence' brake problem :)
>
>
> Date:          Wed, 23 Dec 1998 22:56:48 -0800
> To:            scirocco-l@scirocco.org, sales@parts4vws.com
> From:          Kevin <aventari@cts.com>
> Subject:       need suggestions for a 'maintinence' brake problem :)
>
> Sounds like a master to me.  My car does the exact same thing too.
> Most of the time the brakes work mint, then onece in a while it will
> sink almost to the floor, but if you lift and reapply then they are
> fine..  While parked try pressing the brake pedal slowly.  don't use
> a lot of pressure.  see if it will slow fall to the floor.  The
> object of this is not to press with all your strength just see if it
> will sink.  You might be suprised.  if you come on them real hard
> they are fine.  But if you press light and evenly it will slowly sink
> to the floor.  sounds like bad master cyl seals.  (I have also put
> new calipers rotors pads drums wheel cyl shoes etc)
> hth
> Tony
>
>
> 	Since my Scirocco has been long overdue for some
> maintinence a problem has
> fittingly surfaced. I cant believe i went 3 months with almost no
> problems! :)
>
> 	Its has to do with my brakes. I've had a good firm pedal
> for 6 months, but
> now SOMETIMES when I push the pedal it takes about 2-3 inches more travel
> than normal to 'catch', but sometimes it works normal! Very disconcerting
> as you can imagine. I can pump it up once and it will feel good when it's
> happening, but usually after I haven't used them for a bit if I apply the
> brakes, the problem occurs. It still feels good and solid, I can lock my
> 15's up, but the pedal is just almost at the floor. If I hold it at the
> bottom the pedal doesn't sink no matter how much pressure I put on it.
> 	It feels to me like all the wheels are braking (both
> circuits working) but
> i'm not positive. I felt the brakes when I got home, and the fronts were
> warm (same on both sides) and the drums were both cold.
>
> 	Keep in mind I have new pads, rotors, I rebuilt the
> calipers 6 mos ago,
> good shoes, good drums, new wheel cylinders (8mos), fairly new rear brake
> hardware, new parking brake cables(8mos) properly adjusted. And of course
> the whole thing has topped off and recently flushed fluid,
> castrol GT/LMA..
>
> 	I'm leaning towards master cyl, but i want suggestions. There is no
> leakage around the m/c.
>
> Please help me! I dont want to suddely lose the brakes and have some damn
> SUV total my car!
>
>
> Kevin Fry roccin '81 S 1.8
> "You are what you drive- Buick Riviera: I like to make a statement by
> driving an ugly car, and the Toyota Supra is too small.
>
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