Originally Posted by uranjack
I have replace the #17 inside the cylinder, with both black and colored orings.
I have also replaced the #20 on the outside of the cylinder a few times.
I cannot feel any air escaping through the front of the bolt.
The bolt has no scratches. That's why i'm scratching my head.
What should I look at in the LPR?
Check your reg pressure make sure it's set at about 150 PSI, if you don't have a reg tester.. then, it's approx 4.5 turns out on the HPR, I Believe, make sure the LPR is adjusted correctly, 3.5 - 4 turns.
As far as the LPR leaking, take it out and check the 012 orings, and then on the inside of the LPR housing, the small 007. (I've only once had 1 LPR cause a bolt leak)
Other then that.. if none of that works, I'd see about calling dye and getting a urethane o'ring for the CAN. or see if you can take a CAN off a DM8,9,10,11,12 or M8. and see if it works you could need a new one