Many thanks to all who responded. Paul A. gets the prize for the most workable
solution with the equipment I have on hand. See below.
A few of you mentioned the grease gun. While I believe it'd work well (the
grease would lube the piston allowing it to slide out easily), unfortunately
without a parts washer I'd end up with calipers full of grease and no easy way
to clean 'em! :)
Thanks again!
-=Chris
Chris King - cbking@alum.rpi.edu
http://mywebpages.comcast.net/kvcbk/
---------- Original Message ----------------------------------
From "Paul A. Asgeirsson" <Pasgeirsson at worldnet.att.net>
Date: Wed, 07 May 2003 08:10:42 -0700
Hi Chris,
I just use the stuff in my circulating degreaser, which is Stoddard Solvent. I
suspect that paint thinner would work about as well. Apparently what happens
is it gets to the dust seal and lubes it enough so
it will get loose. Beware of flying pistons, though!!! They can really shoot
with air pressure behind them!!!
Later, Paul A
Chris King wrote:
> Ah, sounds like a plan! Any particular solvent you prefer?
>
> Thanks!
>
> -=Chris
>
> Chris King - cbking@alum.rpi.edu
> http://mywebpages.comcast.net/kvcbk/
>
>
> ---------- Original Message ----------------------------------
> From: "Paul A. Asgeirsson" <Pasgeirsson@worldnet.att.net>
> Date: Wed, 07 May 2003 07:45:55 -0700
>
> >Hi Chris,
> >
> >On stuck pistons, I do this: Paint the perimeter of the piston at the dust
>seal with solvent and retract the piston with a C-clamp. Then apply air
>pressure from your blow gun. If it moves a bit, great,
> >then repeat the above steps above until it comes out. I've never had a
>piston stay totally stuck using this method.
> >
> >Regards, Paul A
> >
> >Chris King wrote:
> >
> >> 2 calipers, 4 pistons. Only 1 came out under 90 psi air pressure. 3 others
>moved, but are still stuck in the bores. Of the 3, 2 I can probably whack out
>with a tool inserted in the banjo connection hole.
> >>
> >> Any good ways to get the last one out? I'm replacing all 4, since they're
>only about $10 each, so destructive methods (to the pistons) are also welcome.
> >>
> >> -=Chris
> >>
> >> Chris King - cbking@alum.rpi.edu
> >> http://mywebpages.comcast.net/kvcbk/
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