That's my method, too Karl!
Jim
----- Original Message -----
From: "Karl Vacek" <KVacek@Ameritech.net>
To: <6pack-digest@autox.team.net>; <StuBeatty@aol.com>
Sent: Wednesday, March 13, 2002 10:30 AM
Subject: Re: Brake Caliper Pistons
> StuBeatty@aol.com wrote...
> > Subject: Brake Caliper Pistons
>
> I've been busy and let list messages pile up, so this is a bit late.
Glad Stu
> got his pistons out OK and didn't get hurt. I too have used
compressed air
> when in a hurry, and have been lucky too. Mostly ;-)
>
> However, there's a safer and simple way to remove pistons from
calipers or
> wheel cylinders. Rather than use compressed air, use a liquid. Air
is
> compressible, and when the piston comes out the air continues to
expand and
> propels the piston like a missile - maybe right into someone or
something.
> Liquids are generally not compressible, so when the piston comes out
the
> pressure is immediately relieved and the piston just sits there
waiting for
> you to lift it off. Way safer.
>
> The simplest way is to use a grease gun. Adapt an old brake hose to
your
> grease gun and pump away. You can use cheap grease, or perhaps oil.
The
> piston will come right out. When the first piston is nearly out, hold
it in
> place with a "C" clamp or something similar, and keep pumping till the
other
> one comes out. Then lift them both out, remove the grease or oil with
> solvent, and the caliper is ready for rebuilding.
>
> Karl Vacek
> '66 TR4A
> '68 TR250
> '64 Amphicar
> '16 Ford Model T
> '46 Piper J-3 Cub
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