Hi all, my one way valve (in the servo pipe) stuck open today, so boost air could be heard pissing out of, I can only assume, was the servo. Cleaned out valve but now brakes feel a bit wooden, d'ya reckon servo's shagged. If so is there an overhaul kit or am I gonna have to replace?

 

Air introduced into system? Try a proper brake bleed (after servo is properly fixed).

 

Have you fitted the one way valve back on the right way??
The servo is not actually connected/plumbed into the brake hydraulic system ( it just provides servo assistance to operate the brake master cylinder ) so no bleeding required.

Mick

 

Yeah, pipes as was, I'm not running much boost as I'm running in a rebuilt engine, so +0.7 bar may be hasn't sh****d it as it pulls -0.9 bar on vacuum so it shouldn't have split the diaphragm should it? Took it out for a run today and seemed ok-ish. I guess try it with hose on and then hose off, should show a big difference wouldn't you say? Pedals not rock hard or spongy, just feels a bit wooden.