Brake load sensing valve linkage seized?? Mot failure

[Aaron]

failed my mot on this??

Brake load sensing valve linkage seized??

Only one side(passenger near rear beam)

what is it???

[LScottBell]

http://img510.imageshack.us/img510/4498/biasdiagramdisp640cv8.jpg

Take the passenger back wheel off mate and just under the arch you will see the brake linkage valve. I had the exact same on my mot fail and i sorted it myself no problem.

Soak all around the valve with wd40 and let soak and i used pliers and just worked the metal plate and eventually it loosened or try get a hammer and give it a few hits should hopefully start moving it only needs to move up and down a few cm's and thats it :y:

Hope that helps. Just message me if you need any more help :cool:

[Aaron]

thanks dude
so where the bolt goes in (number 3) bash there??
so it moves up and down yea??

[LScottBell]

The bolt doesnt move mate. See the part where the arrow points to ? The part the 3 bolt goes through? You move that up & down its a little flat metal peice that sticks out and that moves and you just work that until it comes loose and thats you

[Aaron]

so were do i spray the wd40?
on number one?

[LScottBell]

Yes everywhere about the number 1 part i just soaked it all and let it sit for a half hour then just worked at it

[Aaron]

i can move it with a set of forsips just not with my hand
can only move it about half a cm with forsips tho??

what else could i try??

[Aaron]

Bumpe as above?
i can move with forsips about a cm and when i press break down it does slightly move...

is it suppose to move by your hand???
what size spanner will i need to remove brake pipes?
should i drop beam and give it a good go?

[vtcarl]

there is no need to remove it. i had the same prob awhile back. and as explained, just soak with wd40, leave for a bit and use some mole grips and wiggle back and fourth. this will work it loose enough so it will start working again.

[Aaron]

ive worked it loose but i carnt move with my hands.

should i go for a drive and do some nice braking(with some weight in the back)

[Dan-Jnr]

Soak it up and get it moving. I dont know why Peugeot/Citroen didnt cover these in some sort of box to stop them corroding.