Front master cylinder cup set stuck

[wan3417]

My cup set piston has got jammed inside the front master cylinder. Anyone experienced this and have any idea of extracting it without damaging the interior?

[pete]

Only way I know is a compressor to blow it out, but make sure you got towels or something in front to catch it.

[Adler]

Only way I know is a compressor to blow it out, but make sure you got towels or something in front to catch it.

Are you thinking of the caliper?

You can stick a dowel in the other end to push it out.

[pete]

I did that for my caliper, but I figured the same would apply for the master cylinder...

It didn't work for mine mind you, but that's a whole different story and it was shagged completely...

[cowboyup3371]

Soak it in pb blaster and just work at pulling it out. Maybe put the system in a vise, protected of course.

[wan3417]

putting it through a compressor might damage the oil eye port wouldn't it?

[cowboyup3371]

No, it's just pretty good air and it will help clean some of the big junk before you start working the brake cleaner on it.