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?

[IronHillRestorations]

That is the correct procedure. If you have some extra fittings you can make an adapter that won't leak air. A small compressor may not have enough PSI to pop the piston out. Be careful doing that as it can come out of there with enough force to remove a finger.

If you think it's corroded in there, brake fluid won't cut it. You need a penetrating oil like PB Blaster or WD40.