Brake piston removal
 

These are curvy front brake, it has been taken off for rebuild.

I'm wondering how the pistons can be removed without expensive special tools.

cheers,

Lucas

Re: Brake piston removal
 

Connect them back to the brake hose and squeeze the brake lever until they pop out ? ...

Alternatively connect the brake calliper to an air compressor and let the pressure do the work for you

Re: Brake piston removal
 

cheers, but I don't have a compressor.

Re: Brake piston removal
 

I tend to use a thick rag or T-shirt folded over a few times (so to not score the piston at all) and clamp and pull with a set of Mole grips.

There is probably a better safer way than this though. I know nothing.

Re: Brake piston removal
 

I did it like this on my gsxr calipers but was careful. I'm sure it's not the proper way to do it but no harm was caused.

Nick

Re: Brake piston removal
 

These aren't too expensive are they?

http://cgi.ebay.co.uk/Motorcycle-Bra...item25557c88a3

Re: Brake piston removal
 

+ 1 the first line of martianskippy's reply, but DON'T use air!
If the piston is really stuck, when it finally lets go under air pressure it will literally be a missile. Hydraulic is far safer.

Re: Brake piston removal
 

seems good, it's the first time I believe the claim of 'added pulling power' :D

£18 is not a lot, but it'll be a tool used once in a few years if that...

i'll give the mole grips a careful try first.

thanks everyone for the tips.

lucas

Re: Brake piston removal
 

I would be afraid that the piston could get deformed this way, even though no scouring can be observed..

I think using the hydraulic pressure of your brake system is the safest and easiest way forward - you don't need any additional tools and you can be 100% sure you don't damage the piston in any way.

Anyways, I know nothing so please feel free to disregard my posts in this thread :)

Re: Brake piston removal
 

Both the molegrips & compressor ways are a bit risky, I had to do this on friday night and just did it the hydrolic way.

The tools unnecesary unless you rebuild calipers that aren't attached to a bike often. Takes literally 10 minutes to put the calipers on a bike, bleed up and pop out.