[s-cars] Clutch Master Cylinder Replacement Procedure

Tue Nov 18 06:44:14 PST 2008

Tom-

I have not even thought about the flex line‹ I assume you mean the supply
line.  In a pinch I go to a BMW shop and buy the blue core rubber brake hose
that was used on the K series bikes.  They are about 12-13² long.  Would
this be long enough?

On 11/18/08 9:26 AM, "Tom Green" <trgreen at comcast.net> wrote:

> Cozy up to your neighbor with a warm garage, Mark.  It could be worth it, even
> if you can't stand him.  : > )  The standing on your head part is pain enough
> for
> this job, especially when my ancient body doesn't recover from the contortions
> as quickly anymore.  The slave cylinder and line might have to wait for better
> conditions if they would have to be done in the cold.
> 
> Anybody parting out a car have this flexible clutch line available to have
> rebuilt for a spare?  The little s-loop in the hard line at the slave is a
> little difficult to
> duplicate because of the tight bends.
> 
> Shortly after replacing my neighbors clutch and flywheel with concurrent
> master and slave cylinder replacement, he called to say the clutch didn't
> work.  I 
> got him to nurse it home about 15 miles without clutch (avoid stoplights where
> possible) to find that with every clutch depression a fine stream of fluid
> sprayed from the flexible hose.  Amazing that there was still plenty in the
> master cylinder.  Since a replacement hose was not in stock at the dealer and
> two
> days away, we removed the hose and had the local hydraulic shop replace the
> rubber line for $16.  The dealer part is about $80.  It made me think  that I
> am
> always checking rubber brake lines for deterioration and this line was ignored
> for 14 years.  
> 
> You want to minimize the brake fluid loss and protect the carpet, and IIRC,
> you can push the clip off with a small flat blade screwdriver as long as you
> don't 
> push it off into parts unknown.  There are lots of hiding places for small
> parts down there even when well lit.
> 
> Tom
> 
> On Nov 18, 2008, at 7:22 AM, Mark Turczyn wrote:
> 
>>  
>>  Tom-
>>  
>>  I just went and ordered a new MC.  When I got home of course I found that I
>> had a new one on  the shelf since I have always bought  and shelved all of
>> the suspect parts that anyone talks about on the list.  Interest for me‹the
>> NOS A90 slave cylinder I have on the self is the same one used in the S6-
>>  
>>  So I am not going to rebuild- although if it is cheap I may try it with the
>> one I take out.   I think the only hesitation I would have is that if it is a
>> pain to replace the MC I would not like to take a chance that the rebuild kit
>> may not work.  If I do it this time and it goes fast (in this freezing
>> weather) I may try it in the future since my bolt is still good on the one
>> that is leaking‹cannot have too many spares.
>>  
>>  
>>  I pulled the lower bolster and the plastic heat distribution pipe out last
>> night to take a look.  Still not sure how you pull the clip on the pin on the
>> left side.  I guess once you pull out the vacuum switch you have the room to
>> pull the clip---pretty tight down there.
>>  
>>  I got the super glue to tack the clevis pin to a long bolt for the
>> reinsertion.  Any other tricks come to mind?
>>  
>>  
>>  
>>  
>>  
>>  On 11/17/08 3:55 PM, "Tom Green" <trgreen at comcast.net> wrote:
>>  
>>  
>>>> 
>>>>  
>>> Mark,
>>>  I've been intrigued by this offer for a rebuild kit.  I wish someone would
>>> verify it.  I 
>>>  may have to do so since it is cheap.  I have no faith in this catalog
>>> without being able to
>>>  see and touch the actual part.
>>>  
>>>  1995 AUDI S6 Clutch Master Cylinder Repair Kit
>>> <http://www.rockauto.com/catalog/raframecatalog.php?carcode=1009370&amp;part
>>> type=2000> 
>>>  
>>>  These guys seem to have the cheapest price for a cylinder showing the
>>> correct part. 
>>>  It depends on when you intend to change the cylinder.  Some free shipping
>>> offers 
>>>  might result in a lower total price, or express costs vary a lot.
>>>  
>>>  
>>> http://www.stopshopanddrive.com/products/1995/audi/s6/clutch/clutch_master_c
>>> ylinder.html
>>>  
>>>  http://www.epmtuned.com/id200.html
>>>  
>>>  I wouldn't  worry about the rod if the clutch is not getting stiff.  It is
>>> not too difficult to change
>>>  if you are good at working under the dash.  : > )
>>>  
>>>  Changing the slave and the flexible line between the two is a good idea.
>>> If you have the
>>>  time, rebuilding the line is much cheaper ( it uses brake line parts).
>>>  
>>>  Getting the brake fluid out of the carpet may be the hardest part.  Don't
>>> wear your best 
>>>  shoes if you continue to drive with it leaking, and watch for slippery
>>> soles on the pedals.
>>>  
>>>  Tom
>>>  
>>>  
>>>  
>>>> Date: Mon, 17 Nov 2008
>>>>  From: Mark Turczyn <mkturczyn at verizon.net>
>>>>  Subject: Re: [s-cars] Clutch Master Cylinder Replacement Procedure
>>>>  To: David Forgie <forgied at shaw.ca>, s-car-list
>>>>  <s-car-list at audifans.com>
>>>>  Message-ID: <C547045A.8BE4%mkturczyn at verizon.net>
>>>>  Content-Type: text/plain; charset="ISO-8859-1"
>>>>  
>>>>  Dave and all-
>>>>  
>>>>  Most parts places seem to offer four brands?Sachs, ATE, FTE, and BA  at
>>>> $95.
>>>>  Blau just has ?German supplier? for $135
>>>>  
>>>>  I know many are built in China- I just do not want a leaker so do anyone
>>>>  have advice on which is my best bet for being as good as my original that
>>>>  lasted all these years?
>>>>  
>>>>  
>>>>  
>>>>  
>>>>  
>>>>  On 11/17/08 9:58 AM, "David Forgie" <forgied at shaw.ca> wrote:
>>>>  
>>>>  
>>>>> Fred Munro's excellent procedure is available as a pdf at S-cars.org:
>>>>>  
>>>>>  
>>>>> http://s-cars.org/postnuke/downloads/pdf/AudiUrS4ClutchMasterCylinderRepla
>>>>> ceme
>>>>>  nt.pdf
>>>>>  
>>>>>  (Found by looking through the AudiWorld FAQ for the S-cars.org DIY link):
>>>>>  
>>>>>  http://forums.audiworld.com/s4s6/msgs/149966.phtml
>>>>>  
>>>>>  Dave F. 
>>>>>  
>>> 
>>>  
>>>  
>> 
>>   
>>   
> 
> 