Since it is de-gased, id you inspect to see if something is simply stuck in valve? I though I remember a member here finding file shavings in his new MROD.Mike
I am using the Crosman check valve/fill nipple on the bottle project. It is a remarkably inexpensive bit. It screws into the end cap on the muzzle end of the air tube. What you describe certainly sounds like a check valve malfunction.cheers,Douglas
What are you getting Bob? or considering anyway?cheers,Douglas
i also had the same issue and i spoke with Matt, Gene and Dave in the chat about it and i also told the i replaced all the o rings in the gun, from the valve down to the muzzle end, but i was still having a leak, well the guys recommended that i check the o ring inside the filling nipple and what do you know... the problem was right the, i must say to get that fill nipple off is a bit of work, it was very corroded on the inside i cleaned it and try to get as much as possible corrosion off the parts and applied a bit of silicon grease to the o ring and the other parts, put it back and there you go, problem solved.Thanks MATT, GENE and DAVE. RegardsMarno