Non Working Rear Caliper

[Huw Powell]

Alexander van Gerbig wrote:
> 
>     Since I am waiting for a little oil line adapter and exhaust outlet I
> decided to solve any other issues with the car since it is in the air.
> Finally got the downpipe out and modified it to fit the flexible temporary
> downpipe for the turbo.  Then I went over to the driver's rear caliper
> because it seemed to be sticking.  I sprayed the return spring and worked
> it, no problem, but it didn't seem to do anything to the caliper when I hand
> cranked it, though when I yanked on the e-brake handle it did lock the
> wheel.  So I pulled the caliper off and checked the guide pins, working
> fine.  I played with the spring again and it had no visible effect on the
> piston.  Turned the piston clockwise and pushed it in a bit.  Reinstalled
> and stomped on the brake pedal to get it to sit.  The pedal sank a bit and
> then came back brick hard.  Checked the rear caliper and noticed the pads
> are no where near the rotor anymore, the pistons hasn't pushed back out at
> all it seems.  Cranked the e-brake and it does nothing on that side now, not
> sticking, just does nothing and goes much higher.  What's going on here?

I think you have to drive and brake a bit to get the piston to readjust
itself close to the rotor so the ebrake will be able to grab.

-- 
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/