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Re: Trick for removing stuck brake caliper pistons

To: dmallin@attglobal.net
Subject: Re: Trick for removing stuck brake caliper pistons
From: acekraut11@aol.com
Date: Mon, 28 Mar 2005 12:13:02 -0500
Don,

  I did mine the old fashioned way. Elbow grease. I used a wire wheel 
for the outside. But the wire wheel wouldn't get everywhere so I 
scraped with a small flat blade screwdriver, used emery cloth, sand 
paper, naval jelly, whatever else I had at hand and hours later I was 
able to get them about as free of rust as I was going to get them. You 
wont know how much work you have until you get them apart and inspect 
them. The insides could be pretty clean, or could be pretty bad. My 
site below shows before and after pics but I have quite a few more I 
could send to you if you are interested.

 Aaron

 Aaron Cropley
 71 TR6 (Throttle Body Injection!)
 http://www.triumphowners.com/108
 Topsham, Maine

 -----Original Message-----
 From: Don Malling <dmallin@attglobal.net>
  To: triumphs@autox.team.net <triumphs@autox.team.net>; 6 Pack 
<6pack@autox.team.net>
 Sent: Mon, 28 Mar 2005 08:09:29 -0500
 Subject: Re: Trick for removing stuck brake caliper pistons

  I should probably wait to take my calipers apart before asking this 
question, but I thought I'd ask now before the discussion goes stale. I 
hope this isn't a dumb question....

  If the pistons are stuck in the calipers doesn't that mean that the 
caliper cylinders are rusty too. I never hear anything about how to 
clean up the caliper cylinders. I don't think Nelson addresses it at 
Buckeye either. Bead blast, hone, resleeve ...???

 Confused... feels like it must be a dumb question... Oh well.

 Don Malling

 apackard68@comcast.net wrote:
 > List:
  > I had success by having my shop weld a large nut to the piston and 
then torque it with a socket and breaker bar. Your approach was similar 
and I'm glad you had success.
 > Andy > TR250
 > Mini Cooper S Convertible on May 15!
  > > -------------- Original message -------------- > > >>Not sure if 
anyone has had this difficulty removing brake pistons, but since >>TRF 
can't seem to rebuild my rt caliper after 2 FAILED attempts, I've been 
 >>trying to break down an extra 16P caliper. Well the piston was stuck 
tighter >>than a drum, so after unbolting the two halves and trying to 
free it up with a >>hammer with no success another method was tried. 
Now this will ruin the piston >>of course, but that didn't matter since 
it was so rusty. A piece of flat stock >>18" long was welded to the 
edge of the piston, then two bolts were put through >>the caliper half 
which was clamped in a vice by the bolts. The the flat stock >>was 
tapped with a hammer till loose then rotated back and forth by hand 
until >>it was pulled free. >>Wow you should have seen the crap that 
was behind the pistons, more reason >>to replace seals in the complete 
brake system when replacing the master >>cylinder as Kai has mentioned. 
 >>The reason I'm not rebuilding the caliper TRF "rebuilt" is because 
it's a >>16BP and the other side is a 16P the correct caliper for my 
car. Don't know >>how the mismatched pair ended up on the car. >>
 >>Oh well just thought someone might find this trick useful. >>
 >>
  >>Richard Seaton >>RSH17@msn.com >>View My 1969 TR6 restoration 
>>http://www.triumphowners.com/registry.cgi?




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