Doseur valve seal ring

[wesacosa]

Hi All
Does anyone know if the ring which holds the button cap/seal on the brake doseur valve on an XM (think its same as BX and Xantia) are symmetrical or if they have to go in a certain way round. I trying to put a new seal on mine and I am trying to convince myself one side looks slightly different to the other, but I am not sure !
thanks

[wesacosa]

Hi all
Does this seal and ring look like its in place properly? I am having a crazy hard time getting this back together, No matter what I try this is the best I can do but to me it doesn't look right
thanks

[white exec]

Good few pictures of complete valves on the web...
https://www.google.com/search?q=Citroen ... 55&bih=715

Jim must have worked on a good few of these...

[wesacosa]

Hmm as I thought, its not in far enough. I just don't know what I am doing wrong. I have tried lubricating it with LHM, Sillicone grease, red rubber grease. I have tried pushing on with my fingers, I have tried using a socket as a drift. I tried a two different rings, I on to my second new seal after I tore the other trying to get it all back together. aaaaaaagggrrrrrr

[white exec]

Can you get the ring (and the rubber) out again, to measure the depth available?

[wesacosa]

right I am a bit happier with that. managed to get it out and with more red rubber grease and using the dirft from the start I got it on further. now fingers crossed it doesn't leak

[white exec]

Looking better...
I was going to ask whether the circlip behind the rubber was in its correct position (a slot?).
This push-in ring is not dissimilar to a height-corrector rubber retainer.

[wesacosa]

yeah what a faff. I think I should have taken it off the car but I didn't want to disturb the HP lines, as I would then have to find the correct seals and then wait to order and collect. not sure why it was such a pig to get in though.

[wesacosa]

Hopefully thats all leak free now, as I put it back together. another fiddly job getting all those fixings one. I couldn't find a torque value in the Haynes for the 3 hex bolts which hold the bracket. I tried 20Nm like the bracket to valve bolts but the internal hex didn't like that

Is there a specific way to attach the bracket to the pedal lever? It just kind of sits there at the moment
Cheers