stuck piston

[saxo-paddy]

hi there
i have recently got a 106 ( still have the sax lol ) but im having a problem with the brakes.
i have put new discs and pads on the front but i have noticed the piston is not coming out to push the pads there is no braking at all. any ideas?
i have bled the system
pug 106 1998

[Gandi699]

Calipers strip down might be needed could be seized. Does it return?


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[saxo-paddy]

just wont push out never had this problem when i did my saxo brakes

[Gandi699]

Strip down. Or buy a replacement second hand might be easier


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[saxo-paddy]

thinking if i push it in a bit might work it loose?
cars been sat for a few years

[Mickswan]

I'd strip them down. More than likely the dust seals gone and a load of shit (road salt and carbon) has got it.

Just had to do some rears and now they've been cleaned the piston and slider movement is as smooth as a Thai whores snatch.

[saxo-paddy]

was thinking that myself....easy enough to do? never done it before

[Mickswan]

Real easy, take the calipers off the bracket and pump the pedal as much as possible and the pistons will push right out. Then remove the calipers and get cleaning. When you push the piston back in lube the seal up with some brake fluid and it'll slide back in.

Remove the sliders, clean them and put them back together with some grease. They'll move freely. If you need dust seals you can get them cheap enough.

[saxo-paddy]

had the caliper off the bracket earlier and the piston only moved a little bit out but no further will give it a good check over tomorrow though

[Mickswan]

I'd remove it from the bracket, take the pads out and try and clear anything from around the piston. Crystallised salt sets really solid, if you can shift some of it you'll have a step in the right direction.

[saxo-paddy]

yeah i will give it a go tomorrow clean as much as possible and then pump the brake like a mad man lol cheers bud

[saxo-paddy]

Can not get the other bolt out to get calliper fully off the piston still won't move but when I apply the brake it sounds like the servo is whining there is a little dribble of fluid that comes out of the bleed nipple.... Any ideas stressed out with these brakes lol

[chompy]

If fluid is coming out of the bleed nipple then you need to tighten it up/replace it. If it leaks, you don't get the required pressure to move the piston.

[saxo-paddy]

I meant when I was bleeding it it was coming out as normal but the piston wont love what am I best checking?

[saxo-paddy]

Got it sorted now thanks all

[chompy]

What was it?

[saxo-paddy]

Not sure lol I cleaned around the dust seal and tapped it in a bit cleaned bleed nipple again think it just managed to free itself a little to get it going again