To: LarryT
Cc: Mercedes Discussion List
Subject: Re: [MBZ] rebuilding a W123 front caliper..
Hey Larry,
thanks for the warning. As it turns out I didn't have a fitting that would
allow me to connect the air compressor to the caliper. So I took a finger
of a disposable rubber mechanics glove
What I do is rebuild the one side and then put piston back in. Use a C
clamp
to hold that piston in and do the same trick for the other side.
I don't like to do it this way because it prevents a thorough cleaning
and drying before reassembly. I use a big washer with a rubber sheet
to seal the
I will admit to having violated the manual's stricture
against splitting the halves of the calipers now on more than one
occasion without apparent adverse consequence. Makes inspection/cleaning a
bit easier and reinstallation of the pucks a lot easier. Last time on
my V'gon following a sudden
DO NOT, EVER sand either bore or piston with ANYTHING. If it won't
clean up with brake parts cleaner, you need to replace the caliper.
Sanding either bore or piston is going to cause them to be out of round
and/or too large (or small), and the piston will surely bind and stick.
The piston
DO NOT, EVER sand either bore or piston with ANYTHING. If it won't
clean up with brake parts cleaner, you need to replace the caliper.
I don't mean to imply that you're cutting metal with this stuff,
it's just a gentle buffing to cut the gunk, which is aggressively
tenacious in some cases.
Jim:
Not to be picky, but the o in o-ring refers to the cross section --
if it isn't round, it's not an o-ring, it's a seal. The piston seal in
a caliper doesn't act like one, either, it is square not to seal the
fluid in, but to pull the piston back slightly when the pressure is
relived (a
Road Test http://members.rennlist.com/roadtest/
.
- Original Message -
From: Kevin J. Slater [EMAIL PROTECTED]
Cc: Mercedes Discussion List mercedes@okiebenz.com
Sent: Friday, August 25, 2006 2:05 PM
Subject: Re: [MBZ] rebuilding a W123 front caliper..
Jim and Sunil,
thanks
wondering if there is a procedure for it in the shop manuals (I'm
doubting
it since they expect the mechanics using those manuals are
experienced) or
maybe in the Haynes manual. I'm great a disassembly, but a procedure is
always welcome to cover the things that experience teaches.
My
mercedes@okiebenz.com
Sent: Friday, August 25, 2006 2:05 PM
Subject: Re: [MBZ] rebuilding a W123 front caliper..
Jim and Sunil,
thanks for the responses. Since I don't have experience doing this, I'm
wondering if there is a procedure for it in the shop manuals (I'm doubting
it since they expect
The '79 240D project car for my son has a leaking left front caliper.
Bought a rebuild kit from Rusty. Any tips or pitfalls that I need to be
aware of? This is my first time rebuilding a caliper so any tips
appreciated.
...Kevin
87 300TD 285k mi
79 240D 161k mi
--
Thank God for Microsoft --
make sure you have an air compressor to blow out the pistons. doing it any
other way is hard. Also, fit the rubber boots to the pistons BEFORE you
slide the pistons into the cylinders. Once the pistons are totally seated,
it's really hard to fit the boots on.
On 8/22/06, Kevin J. Slater
The '79 240D project car for my son has a leaking left front caliper.
Bought a rebuild kit from Rusty. Any tips or pitfalls that I need to be
aware of? This is my first time rebuilding a caliper so any tips
appreciated.
It's easy and fun! No real pitfalls, I use 600-grit wet-and-dry
sandpaper
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