How do you get Pistons Out for Front Brake Calipers Options

[kbrunk1]

Haynes and Climer books say you clamp one side (one piston) then use air to push out the other side.

I have a small compressor. I am assuming you closed both bleed valves and then apply air to where the hydrolic line comes in.

When I do this I can not get the piston to come out.
Do you have to get a threaded fitting and then apply air pressure?
I was just pressing a "riggged tape tip nozzle" and most likely am not getting sufficient air pressure.

Right side caplider brakes seems to be fine (move in and out easily when clamped) and I was just going to put a kit in because it is so old. The Haynes book says to not split the caliper unless you have to.

The other front caliper seems to have a stuck piston because when clamping it it will not move. I am soaking in brake fluid and will see.....

Any help here?

[stugray]

I had a flat piece of 1" teflon laying around bigger than the caliper.
I split the caliper halves and drilled two holes into the teflon plate perpendicular to each other (one out the side, one out the top that intersected).
The hole on the side of the plate I tapped & threaded to screw in a air fitting.
The second hole was positioned where the hole was in the caliper half and clamped down with the o-ring gasket in place.

I put a wet shop towel over the caliper (and one under the piston) and turned up the pressure until - POP.

It would be a pain if you didnt have all that laying around, but took me all of 20 minutes to figure it out and pop out all 4 pistons.

Stu