[s-cars] Sticky Big Red

Tue Jun 8 10:43:36 PDT 2010

Teddy,

This is the procedure that I found yesterday:

http://p-car.com/diy/brakepads/

I did not see a retaining bolt on my calipers, could that bolt be only on
the 996 calipers?

a

On Tue, Jun 8, 2010 at 1:07 PM, Theodore Chen <tedebearp at yahoo.com> wrote:

> Abe,you might want to try a web search to see if you can find pictures of
> the pad replacement procedure.  There's a retaining bolt on top of the
> caliper.  Remove this and the anti-rattle clip.  Then you should be able to
> grab the pads with pliers and pull them out.
>
> On Mon Jun 7th, 2010 7:58 PM PDT Abe Berman wrote:
>
> >Removed caliper this evening.  On the inside of LF rotor the pad seems to
> be
> >only contacting the outer edge of the rotor surface, the inner surface is
> >rough with some light rust.  The pads seem to be jammed into the caliper
> >though and I couldn't easily figure out how to remove them.  I did not do
> >the conversion, so I am unfamiliar with this caliper design and the online
> >descriptions indicate that the pads should be easily removed.  Is there a
> >trick that I am missing?
> >
> >On Mon, Jun 7, 2010 at 8:01 PM, Tom Green <trgreen at comcast.net> wrote:
> >
> >> Abe, I mean clean the brake dust and crud off the caliper so you can see
> >> the condition of the dust boots.  You probably are going to have to
> remove
> >> the pads but not the caliper.  If one is torn it is probably best to
> bite
> >> the bullet then and have them rebuilt.  Your inspection of the lines,
> etc is
> >> time well spent.
> >>
> >> That sounds like a shop you use regularly that checked the balance.
> >>  Knowing the problem, I am sure they would also look for a leaky piston
> or
> >> other possible causes.  The shop I use will tolerate my inspection while
> >> they have the wheels off.
> >>
> >> I use Mintex red box and Hawk HPS for street pads.
> >>
> >> Tom '95 S6
> >>          '95.5 S6 avant
> >> Knoxville, TN
> >>
> >> On Jun 7, 2010, at 3:27 PM, Abe Berman wrote:
> >>
> >> Tom,
> >>
> >> Thanks for the tips.  I did not closely inspect them, no, my mechanic
> >> actually did the balancing as I do not have access to a balancer.
> >>
> >> What constitutes an "exterior cleanup"?  I usually wipe down the caliper
> >> exteriors and the surrounding with a rag and simple green when I change
> >> winter and summer wheels.  I clean the rotors with brake cleaner should
> any
> >> simple green get on them.  I do not however remove the caliper or rotor.
>  I
> >> do inspect the lines and suspension components whilst down there.
> >>
> >> Any recommendations on pads and fluid from the group?  As far as
> >> performance needs, this is a spirited daily driver only, no track use.
> >>
> >> Thanks,
> >>
> >> a
> >>
> >>
> >> On Mon, Jun 7, 2010 at 2:31 PM, Tom Green <trgreen at comcast.net> wrote:
> >>
> >>>
> >>>
> >>>
> >>> Did you have a chance to inspect the brakes while the wheels were being
> >>> checked for
> >>> balance?  You don't mention any intervening maintenance since the
> brakes
> >>> were
> >>> installed 5 yrs/30K miles ago.  It's certainly time for a fluid flush,
> >>> exterior cleanup and
> >>> inspection, and perhaps a pad change.  If they are one piece rotors,
> >>> turning them to
> >>> provide a new and true bedding surface for new pads is a good idea.  If
> >>> the pads are
> >>> worn 1/2 or more, the reposition of the piston may be all that is
> needed
> >>> along with the
> >>> new fluid, but if the pistons are out that far you might be advised to
> >>> check behind the
> >>> dust boot to make sure the pistons are clean and add a little
> plasti-lube
> >>> to insure they
> >>> retract smoothly when resetting for new pads.
> >>>
> >>> Then clean and inspect the brakes at least yearly and flush the fluid
> at
> >>> least every two
> >>> years.
> >>>
> >>>  Tom '95 S6
> >>>          '95.5 S6 avant
> >>> Knoxville, TN
> >>>
> >>>  -----Original Message-----
> >>> Date: Mon, 7 Jun 2010 10:16:42 -0700
> >>> From: Martin Kozaczek <mkozaczek at gmail.com>
> >>> Subject: Re: [s-cars] Sticky Big Red
> >>> To: Abe Berman <yellowcuda at gmail.com>
> >>> Cc: s-car list <s-car-list at audifans.com>
> >>>   Message-ID:
> >>> <AANLkTilHqJpT3apSTxEfyJ0goZq8B9FwRMlw0kiQ_1Dp at mail.gmail.com>
> >>> Content-Type: text/plain; charset=ISO-8859-1
> >>>
> >>> I've read that some have had luck with taking the caliper off (easier
> to
> >>> work this way) removing the seal or boot whatever it's called, then
> >>> cleaning
> >>> out the piston bore with liberal amounts o WD40 or equivalent, clearing
> >>> out
> >>> with compressed air and reassembling.
> >>>
> >>> My calipers were new so I didn't bother, just sent them back.
> >>>
> >>> On Mon, Jun 7, 2010 at 10:01 AM, Abe Berman <yellowcuda at gmail.com>
> wrote:
> >>>
> >>> Thanks for sharing Martin.
> >>>
> >>>
> >>> Hmm, guess I should check the archives.  I am hoping (read: praying)
> that
> >>> I
> >>>
> >>> don't need to replace the caliper(s).
> >>>
> >>>
> >>> On Mon, Jun 7, 2010 at 12:40 PM, Martin Kozaczek <mkozaczek at gmail.com
> >>> >wrote:
> >>>
> >>>
> >>>  This seems to be a common problem with the older style two piece
> >>>
> >>>  928GTS/993 big reds or blacks.  I had a brand new set that did it
> right
> >>> from
> >>>
> >>>  day 1.
> >>>
> >>>
> >>>  I tried everything and could not get it to go away, so I returned them
> >>> and
> >>>
> >>>  temporarily replaced them with 996 C4 calipers while I wait for my
> 996TT
> >>> big
> >>>
> >>>  reds.  Problem went away immediately when I put the 996 calipers on.
> >>>
> >>>
> >>>   On Mon, Jun 7, 2010 at 9:27 AM, Abe Berman <yellowcuda at gmail.com
> >wrote:
> >>>
> >>>
> >>>  Patient - 95.5 Avant mit Porsche "Big Red" front calipers
> >>>
> >>>
> >>>  Has anyone had problems with sticky Porsche calipers?
> >>>
> >>>
> >>>  I have been experiencing incidences of shuddering on the highway and
> >>> feel
> >>>
> >>>  it
> >>>
> >>>  slightly (but intermittently) around town at lower speeds.  Checked
> >>>
> >>>  balance
> >>>
> >>>  on all 4 wheels and its fine.  Tires are new and have no external
> >>>
> >>>  defects.
> >>>
> >>>
> >>>  I experienced this to a HEAVY degree whilst on the highway on Friday
> and
> >>>
> >>>  immediately pulled off at an exit.  Front Left wheel had serious heat
> >>>
> >>>  radiating off of it and a strong brake smell, all others were normal.
> >>>
> >>>
> >>>  I did some reading and it seems like the correct procedure would be to
> >>>
> >>>  clean
> >>>
> >>>  and lubricate slide pins and flush brake fluid/bleed brakes to
> eliminate
> >>>
> >>>  possible gunk/moisture in lines.
> >>>
> >>>
> >>>  The Big Reds were installed approximately 5 years/30k miles ago.
> >>>
> >>>
> >>>  Thanks in advance for any thoughts.
> >>>
> >>>
> >>>  Abe
> >>>
> >>>  Burlington, VT
> >>>
> >>>
> >>>
> >>
> >>
> >>
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