NC30 rear disc removing question.

xivlia · Post by **xivlia** » Sat Dec 22, 2012 4:20 pm

but i have tried pumping the piston out, it doesnt work.. ive jammed the other piston and then i press the pedal it just makes clicking noises from the brake pedal... its not pushing the piston out.

Post by **porndoguk** » Sat Dec 22, 2012 4:29 pm

You need to shock the piston first by rotating it, if its stuck it isnt going to budge, hence why i said shock/rotate it re bleed and watch it come out.

xivlia · Post by **xivlia** » Sat Dec 22, 2012 5:55 pm

yeah i will shock it and try to rotate it and see if it will make any difference

pip · Post by **pip** » Sat Dec 22, 2012 6:11 pm

Sorry guy's but I can't see how you are going to rotate it if brake pressure won't move it.

Personally, I'd reassemble with the old seals after cleaning the seal recess, then bleed & try again with hydraulic pressure.

Pip

Post by **jetblack** » Sat Dec 22, 2012 6:53 pm

xivlia · Post by **xivlia** » Sat Dec 22, 2012 7:15 pm

like i said.. it doesnt work, ive tried it plenty of times, the brake pedal makes clicking noises and it doesnt "push" anymore. i dont know how to explain it any clearer... it just doesnt work

pip · Post by **pip** » Sat Dec 22, 2012 9:15 pm

xivlia wrote:like i said.. it doesnt work, ive tried it plenty of times, the brake pedal makes clicking noises and it doesnt "push" anymore. i dont know how to explain it any clearer... it just doesnt work

It should work unless your m/c is fukced or the system has air in it. It is THE most effective way of removing the pistons. Funny that as thats how the brakes work!

Bud977 · Post by **Bud977** » Sat Dec 22, 2012 9:36 pm

Why not try pushing the piston in further to break the "seal"?

If the seals have glued themselves to the piston, pushing the piston in is a good as rotating or pushing it out. You can use a G clamp or a vice and a sleeve.

Then, bleed the brake and use the pedal to pump it out.

Post by **Morespeedvicar** » Sat Dec 22, 2012 11:09 pm

Damn he beat me to it, but try pressing it back in with a g-clamp or something, but if it thats siezed i'd prob be looking at getting another decent one, maybe asking the really nice guys on here?
Cheers
Ian

xivlia · Post by **xivlia** » Sat Dec 22, 2012 11:36 pm

okay, i will try the g clamp method right now and see how it goes.

NC30 rear disc removing question.

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