All the o rings have been replaced, but from the looks the striker o ring looks a little too small to be on there maybe i am wrong, it is the RED O-Ring that is on there though. Manuel states it needs to be a different size one than the other red's.
I have taken it apart again i feel i may have missed a few things. for one the valve body has two different colored O-Rings and one of them is dry and brittle. From the picture you can see I broke it trying to get it off. those will both be replaced with fresh ones.
there also seems to be a Striker Buffer in between the striker and valve body...i don't know how no one in the shop caught this, I also don't know how I didn't catch this. not only that! I had two as you can see in the picture there is one black one on the spring and one blue one that was sitting in front of the value body. between the the valve body and striker...
i think it is clear where the problem was coming from...would you agree?
i will naturally be fixing all of this and as soon as i do i will report back, if you see anything else in the photos that looks like it needs fixing don't hesitate to shout it out.