[s-cars] abs purge procedure

[Keith Maddock]

Mike, Bob:

I was talking to one of our foundation brake engineers the other day
who also has a 95.5 S6, after he drove mine.   We started talking
about the stock brakes and the Porsche upgrade options.

It was interesting to hear him counter my comments that the G60's were
very flexible.  The idea offered was that the G60's tend to wear the
pads/rotors in a slightly uneven fashion - which causes more pad
"kickback" than normal.  This results in increased pedal travel as you
have to move the pistons that much further before you actually start
getting clamping.

Anyway - this would support Bob's suggestion that new pads/rotors
would firm things up.

Cheers,
Keith

On 12/17/06, Robert Rossato <bob.rossato_af at cox.net> wrote:
> Well, as we all know the North American models of the UrS4/6 have fairly
> soft brakes to begin with.  However, one thing I've noticed that will
> dramatically improve the feel of the brakes is new rear rotors and pads.
> What shape are your rear brakes in?  Even if they have a decent amount
> of pad material left, they will feel much better with new pads & rotors.
> For whatever reason they definitely do not stay firm throughout their
> pad life.  It may be due to corrosion build-up on the caliper carrier
> where the pads slide.  It might have a tendency to push the pads back
> when they're thinner.  I always wire brush that area to get rid of all
> scale and add a little anti-seize.
>
> And then of course there is the flexure of the front G60s, which it
> sounds like you're already planning on replacing.
>
> bob