when i got under there it looked to me that someone had bin playing around with the compensator, the valve arm was fully pushed against the valve body, and a cable tie had been fitted around the push rod at the valve side of the actuator arm, this appears to have been stopping the push rod coming out of the arm,
i purchased a new valve from Peugeot at best part of £200 squid

it comes complete with the push rod, springs, push rod mounting bracket that mounts on rear axle and a large red plastic thing wedged on the push rod at the valve side of the actuator arm, this looks like a setting up gauge/tool,
at the axle braket end of the push rod there is a sliding collar withy a grub screw with a 10mm hex head to clamp it to the push rod at the right point
has anyone got any idea on how to set this thing up,
i have spoken the my local dealers technician who is going to email me with set up details, as he said he thinks they have never fitted one,