[DeTomaso] Fwd: Rear Caliper Rebuilding

Wed Apr 20 17:41:07 EDT 2016

When the new Forum is online I can, as a POCA member, access Aug 2002 POCA
that Jack refers to in the email list.  The connection of separate piles of
data to give context and meaning to the whole will be invaluable.  I do
hope we can keep the email list.

sean

---------- Forwarded message ----------
From: <JDeRyke at aol.com>
Date: Fri, Mar 23, 2007 at 2:21 AM
Subject: Re: [DeTomaso] Rear Caliper Rebuilding
To: NSakulen at aol.com, DeTomaso at realbig.com

Rebuilding our brake calipers is not difficult since all thats required is
to
remove the piston(s), clean them with scotch-brite and replace the square
rubber sealing ring in the caliper bore. All Pantera vendors sell 'rebuild
kits'.
The job is very messy, though. The Pantera's rear caliper is particularly
easy since once the caliper body is removed from the e-brake assembly, the
piston
and the self-adjusting mechanism slides out of either end of the caliper
body
intact. I suggest not messing with the self-adjusting mechanism- it's very
complex & there are no spare parts. A little Girling Brake Lube is applied
to
the new square ring before inserting it into its groove in the caliper
body. If
you have back issues of the club newsletter, in the Aug 2002 POCA News, I
went
thru the rebuilding of all the calipers in detail.

If you're doing this because its time for service, good for you! If you have
a leak though, I suggest VERY carefully examining the piston surface for
tiny
pits. European brake pistons are almost universally made of chrome or
nickel-plated mild steel, and water in old brake fluid will worm-hole thru
any plating
to rust the underlying steel. Ragged rust pits protrude and tear the rubber
seal as it slides by, eventually destroying it. Just putting a new seal in
won't fix the leak in this case. U.S brake pistons including Wilwood & other
aftermarket units are stainless steel; this leak problem does not exist.
There are
no replacement pistons for our Girling calipers, either, nor for most of the
Euro calipers made in the early '70s. When one piston in my Porsche alloy
calipers (used in our Pantera's rear) leaked & I found pits, I searched the
world
for replacements & finally made some pistons from billet stainess. Good
luck- J
deRyke<BR><BR><BR>**************************************<BR> AOL now offers
free email to everyone.  Find out more about what's free from AOL at
http://www.aol.com.</HTML>
_______________________________________________

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-- 
Sean Korb spkorb at spkorb.org http://www.spkorb.org
'65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera #1382
"The more you drive, the less intelligent you get" --Miller
"Computers are useless.  They can only give you answers." -P. Picasso
-------------- next part --------------
   When the new Forum is online I can, as a POCA member, access Aug 2002
   POCA that Jack refers to in the email list.A  The connection of
   separate piles of data to give context and meaning to the whole will be
   invaluable.A  I do hope we can keep the email list.
   sean
   ---------- Forwarded message ----------
   From: <[1]JDeRyke at aol.com>
   Date: Fri, Mar 23, 2007 at 2:21 AM
   Subject: Re: [DeTomaso] Rear Caliper Rebuilding
   To: [2]NSakulen at aol.com, [3]DeTomaso at realbig.com
   Rebuilding our brake calipers is not difficult since all thats required
   is to
   remove the piston(s), clean them with scotch-brite and replace the
   square
   rubber sealing ring in the caliper bore. All Pantera vendors sell
   'rebuild kits'.
   The job is very messy, though. The Pantera's rear caliper is
   particularly
   easy since once the caliper body is removed from the e-brake assembly,
   the piston
   and the self-adjusting mechanism slides out of either end of the
   caliper body
   intact. I suggest not messing with the self-adjusting mechanism- it's
   very
   complex & there are no spare parts. A little Girling Brake Lube is
   applied to
   the new square ring before inserting it into its groove in the caliper
   body. If
   you have back issues of the club newsletter, in the Aug 2002 POCA News,
   I went
   thru the rebuilding of all the calipers in detail.
   If you're doing this because its time for service, good for you! If you
   have
   a leak though, I suggest VERY carefully examining the piston surface
   for tiny
   pits. European brake pistons are almost universally made of chrome or
   nickel-plated mild steel, and water in old brake fluid will worm-hole
   thru any plating
   to rust the underlying steel. Ragged rust pits protrude and tear the
   rubber
   seal as it slides by, eventually destroying it. Just putting a new seal
   in
   won't fix the leak in this case. U.S brake pistons including Wilwood &
   other
   aftermarket units are stainless steel; this leak problem does not
   exist. There are
   no replacement pistons for our Girling calipers, either, nor for most
   of the
   Euro calipers made in the early '70s. When one piston in my Porsche
   alloy
   calipers (used in our Pantera's rear) leaked & I found pits, I searched
   the world
   for replacements & finally made some pistons from billet stainess. Good
   luck- J
   deRyke<BR><BR><BR>**************************************<BR> AOL now
   offers
   free email to everyone.A  Find out more about what's free from AOL at
   [4]http://www.aol.com.</HTML>
   _______________________________________________
   Detomaso Forum Managed by POCA
   Archive Search Engine Now Available at
   [5]http://www.realbig.com/detomaso/
   DeTomaso mailing list
   [6]DeTomaso at list.realbig.com
   [7]http://list.realbig.com/mailman/listinfo/detomaso
   --
   Sean Korb [8]spkorb at spkorb.org [9]http://www.spkorb.org
   '65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera
   #1382
   "The more you drive, the less intelligent you get" --Miller
   "Computers are useless.A  They can only give you answers." -P. Picasso

References

   1. mailto:JDeRyke at aol.com
   2. mailto:NSakulen at aol.com
   3. mailto:DeTomaso at realbig.com
   4. http://www.aol.com/
   5. http://www.realbig.com/detomaso/
   6. mailto:DeTomaso at list.realbig.com
   7. http://list.realbig.com/mailman/listinfo/detomaso
   8. mailto:spkorb at spkorb.org
   9. http://www.spkorb.org/