[s-cars] Front Brake calipers not releasing.....Master Cylinder?

[Jim Fleischer]

Definitely lots of drag.......to the point of real hot and smoking on a trip 
up the block......fluid doesn't necessarily shoot out the bleeder, but 
doesn't just ooze either....

Another thought.......I've had two or three instances where the clutch has 
"stuck" against the pressure plate, and have had to start it in gear to free 
it up.  The most recent time was this morning when I went to test drive the 
car after doing my brakes.  Car sat, in gear, for a week and a half while 
waiting for parts, etc.  Could there be any relation?  There was mention of 
the slave cylinder? then I think......Clutch works fine now, BTW.  Does the 
MC have something to do with the clutch as well?

Anyway, I found an old post from Chris Chambers who had a source for a new 
MC at Rockauto.com for $150.  Got the last one and will ship tomorrow for 
Friday delivery.....at least I'll have the weekend to try it out before my 
trip next week.....

Thanks to all for the info and ideas......still open to other suggestions, 
but at this point I'm going to replace the MC and see what happens.

Best regards,

Jim Fleischer




----- Original Message ----- 
From: "Mark Strangways" <MarkS1234 at spamarrest.com>
To: "Jim Fleischer" <jim at almgt.com>
Cc: <s-car-list at audifans.com>
Sent: Tuesday, April 21, 2009 4:30 PM
Subject: Re: [s-cars] Front Brake calipers not releasing.....Master 
Cylinder?


> Are we talking about any real drag here ?
> The pads will always touch the rotors and that is normal.
> There is gonna be some drag on the rotors, but should be easily  turnable.
>
> Apply the brakes hard a few times and let go. If, when you open the 
> bleeder, brake fluids jets out then you have a problem. If it just  comes 
> out slowly or not at all I would think you have no problems.
>
> Mark
> On 21-Apr-09, at 5:52 PM, Jim Fleischer wrote:
>
>> Okay guys......the brake saga continues.....
>>
>> Thanks to Ian, Peter and Stott for the quick replies.....I have re- bled 
>> the system, and although I seemed to squeak out a few more tiny  bubbles, 
>> I've still got my caliper issues.....it seems like they  retract ever so 
>> slightly, but still make contact with the rotor.  It  was said that it 
>> may be the Master Cylinder that is keeping the  fluid from 
>> returning.....any way to test this theory besides  throwing a new MC at 
>> it?  Any way of freeing up what may be stuck in  the MC?  If I do need a 
>> new MC, any sources?  Unfortunately I am  running out of time before a 
>> big road trip next week and I need my  car......thanks for all the help!
>>
>> BTW, the CV boot r&r went fantastic!  thanks to those who advised!
>>
>> Best regards,
>>
>> Jim Fleischer
>> running out of time......
>> _______________________________________________
>> S-CAR-List mailing list
>> S-CAR-List at audifans.com
>> http://audifans.com/mailman/listinfo/s-car-list
>>
>
>
>