Stuck rear calipers

Richard Tanimura Richard at
Fri Oct 11 18:30:41 EDT 2002


I did my e-brakes this spring. I think I opened the bleed valve to make it
easier to turn the pistons. But if 15" channel locks won't budge the pistons
then they sound pretty bad.


PS - if you find the miracle solution for keeping the shaft from binding up,
let me know. Otherwise I see doing this every spring and I have better
things to do.

-----Original Message-----
From: 200q20v-admin at [mailto:200q20v-admin at]On

Searching the archives, I found little on this subject.  Did a Google search
on the mother list as well.
I'm replacing rear rotors/pads since they are down to minimum.  I'm changing
fluid and fixing stuck e-brake cable/rusted shaft
as well.   (Just got done with suspension bushings).
Pistons will not retract at all, I don't have a special tool to fit into the
piston grooves.  15" Channel Lock is doing nothing.
Caliper rebuild time?   I can take the calipers off and stick in the vise if
that will help.  Do I need to crack bleeder valve to
relieve pressure, never had to do that so I suspect calipers are really
frozen.   Need to pass inspection so I can get 20V
back on the road and tuck the 28 year old daily-driver 911 into garage for
If I have to rebuild calipers, do I need special tool to get them out?
Home-brew solution?

Advice welcome.

Steve Jagernauth - Easton, PA

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