I just bought a classic valve from this forum. It was leaking down the barrel so I took off the powertube tip and then there was a black O ring then the spacer .230. I put in a new O ring first then a .220 spacer then aired it up. I gradually increased the velocity then all of a sudden it leak down the barrel. If I held the trigger it would stop. So, sounds like a power tube O ring. Took off the powertube tip and the O ring was on the bolt stem? Every time I put the O ring back it continues to pull the O ring through the spacer and power tip and gets stuck on the top of the stem of the bolt. It is a level 7 bolt. Anyone have any ideas?
Thanks, Paul