[s-cars] Sticky Big Red

[Martin Kozaczek]

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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>>>
>>
>>
>>
>> --
>> -Martin
>>
>
>


-- 
-Martin