locking brake discs!

[laurence]

so, this morning i'v rebuilt one side of the front brakes on me new van, calipers and evrything..

put them back together, bled them, and then as soon as i pushed the pedal they locked up again! (being locked up when i started!)
i don't think its just me putting them back together wrong, could it be the master cylinder?

the brakes lock when u push the pedal, and to unlock them i have to undo the bleed screw and they free up

any help would be great as its abit of a bumma all this! :roll:

 

[oneday!]

if the calipers are moving maybe it could be down to something else

 

[maybee]

hi sounds like the brake pressure regulator if it was calipers opening the bleed nipple would make no difference the regulator restricts the amount of pressure to the discs to balance them to the drums up back

 

[Araon]

collapsed flexi hose......

 

[laurence]

could anybody sugest what i could do then? i've decided it wont be the calipers (thanks maybee) and checked all the brake lines etc, replaced the used ones.. still no change, locks up righ away!

as of yet i've only rebuilt one corner, should i do the rest before i start changing things? ..or would that not change anything? ..would the faulty regulater still persist (or would the fact that the brakes are all locked mean the regulater doesn't woke properly???)

..or could it be suomething other than the regulater??

thanks for all help so far

 

[67panel]

Fit new brake hose :!: :!: If you clamped it when fitting new caliper the insides will have collapsed , turns it into a one way valve also check for free play on master cylinder push rod.Is this after market disc kit :?: check caliper moves free on sliders can twist and stick when still some times OK when moving

 

[futbus]

Have to agree sounds like the classic case of collasped flexi hose. Cheap fix but quite commonly overlooked when doing brakes.

http://www.futbus.com" onclick="window.open(this.href);return false;

 

[laurence]

hmm okay, well i'll make that tomorows job to change all the hoses then! i rebuilt all the remaining brakes today front and rear but only one of the rear works how it should :roll: the rest all lock up still! ..soo change them tomorrow and see if it sorts it! (though the flexis look new i'll change them! and have changed some of the solid ones too)

thanks for the help! i'll keep you posted !

 

[laurence]

soo hoses replaced today! ..and well it was that :roll: they all do as they should now though my T jonction at the rear leaks alot now! ...and possibly one of the front calipers i rebuilt! wtf :shock: lol will i ever see the back of these brakes!
the van was suposed to be taking us down to lacanau this weekend but geuss it'll be the boring car n a tent insted anyways, thanks for everyones help lol