Brake Master Cylinder

[Scott DeWitt]

I'm not sure.. From memory I do recall seeing master cylinders with ports
plugged, but not terribly certain the differences. I do know the ABS
system and the braking hydraulics are different from FWD to AWD, the FWD
having four corner ABS and the AWD cars having front/rear abs.

Scott



On Tue, March 4, 2014 1:40 pm, SAJanesick - Bellsouth wrote:
> Scott,
>
> The bottom link from AutohausAZ lists an ATE OEM part for the TQ20V. That
> is
> the best example I can provide for you although I also found it referenced
> in the ATE web catalog as:03.2125-3610.3 010214, found on this link:
> http://outcat-cs.tecdoc.net/ows/en/CB4BA8AD2CDA5863BDF349DD8C22D2EE.ows_cs1.srv;jsessionid=CB4BA8AD2CDA5863BDF349DD8C22D2EE.ows_cs1?view=VIndexFramesetJsp
>
> After reading your information about rebuilder reluctance on aluminum
> parts,
> I looked back at the RockAuto CENTRIC part that I purchased and it is NOT
> listed as a rebuilt unit.  I mistook it for a Cardone rebuilt unit below
> it.
> Make sense as there also was no core charge on it.
>
> The question still remains as to whether or not I could simply plug the
> unneeded holes and carry on from there.
>
>             - Steve
>
>
> ----- Original Message -----
> From: "Scott DeWitt" <scotty at advancedautomotion.com>
> To: "SAJanesick - Bellsouth" <sajanesick at bellsouth.net>
> Cc: <200q20v at audifans.com>
> Sent: Tuesday, March 04, 2014 2:05 PM
> Subject: Re: Brake Master Cylinder
>
>
>> What part number do you need?
>>
>> I had a conversation at AAPEX with a guy who was working a booth for a
>> reman company and he said that they do not rebuild any brake components
>> that have aluminium housings, as often people never change the fluid and
>> it gets slightly corrosive and pits the surface. The only correct way to
>> rebuild those would be to sleeve it and they couldn't compete with the
>> companies that just replace the seals.
>>
>> Scott
>>
>> On Tue, March 4, 2014 12:49 pm, SAJanesick - Bellsouth wrote:
>>> Chipping down the list of things to fix a binding RF caliper, the next
>>> item to change is the brake master cylinder.  AutohausAZ has one at
>>> $300+,
>>> but since the car is so old and this is something of an experiment, I
>>> opted for a cheaper rebuilt unit from RockAuto - CENTRIC Part #
>>> 13033110 -
>>> for $103.  The unit I received is apparently similar but not identical
>>> to
>>> the original.
>>>
>>> The rebuilt CENTRIC looks like the BMC for the standard 200 Quattro as
>>> illustrated by AutohausAZ.
>>> http://www.autohausaz.com/search/product.aspx?sid=5lqoz045vymflc45bhb1fg2p&makeid=800002@Audi&modelid=1007277@200%20QUATTRO%20TURBO&year=1991&cid=14@Brake%20%26%20Wheel%20Hub&gid=1836@Brake%20Master%20Cylinder
>>>
>>> The BMC for the TQ20V appears identical except it only has two ports
>>> vs.
>>> the four ports above.
>>> http://www.autohausaz.com/search/product.aspx?sid=5lqoz045vymflc45bhb1fg2p&makeid=800002@Audi&modelid=1007288@200%20QUATTRO%20TURBO&year=1991&cid=14@Brake%20%26%20Wheel%20Hub&gid=1836@Brake%20Master%20Cylinder
>>>
>>> According to an ATE cross-reference site, the internal specs are the
>>> same
>>> in terms of bore.  Externally they appear identical save the two
>>> additional ports.
>>>
>>> I have not fitted it yet in case I need to send it back.
>>>
>>> The question is has anyone used the unit for the standard 200 and
>>> capped
>>> the two additional brake line feed holes with a threaded plug and then
>>> successfully used that BMC in the TQ20V, or are there internal
>>> differences
>>> that require the original 2 port version?
>>>
>>> If I can save $230 by altering the 4 port BMC to a 2 port, then I'll be
>>> satisfied to drive around town.  No track time intended.
>>>
>>> Thanks,
>>>
>>>     - Steve Janesick
>>> _______________________________________________
>>> 200q20v mailing list http://www.audifans.com/mailman/listinfo/200q20v
>>>
>>
>>
>> --
>> Thanks!
>> Scott DeWitt
>> Advanced Automotion
>> Ph:  720.4.GEARS.1 (720.443.2771)
>> Fax: 361.288.8030
>> Any price quoted in this email is valid for 15 days, and subject to
>> availability.
>> Http://www.advancedautomotion.com
>> Shipping, Return, and Warranty policies
>> http://www.advancedautomotion.com/shipping.php
>> http://www.advancedautomotion.com/warranty.php
>>
>
>


-- 
Thanks!
Scott DeWitt
Advanced Automotion
Ph:  720.4.GEARS.1 (720.443.2771)
Fax: 361.288.8030
Any price quoted in this email is valid for 15 days, and subject to
availability.
Http://www.advancedautomotion.com
Shipping, Return, and Warranty policies
http://www.advancedautomotion.com/shipping.php
http://www.advancedautomotion.com/warranty.php