havin some trouble

[bigjohn]

hello everybody I got used R/T a while back, its pretty much stock other than the barrel and trigger frame, but no lvl 10, and it has worked wonderfully for a while, but lately i am having some trouble with it. It acts like my tank is empty even when it is full. I look down the feed neck and the bolt only moves about half way forward and then goes right back. I have replaced the regulator piston, I have even replaced the regulator valve pin, but I can't think of anything else to do.

any help would be greatly appreciated
thanks.

[Muzikman]

You don't happen to have a lvl 10 spring or something in there do you? Does it do this all the time, or just some times? Does it have a ULE body? If so, is the ball detent screwed in too far? If not, does it do it with the barrel off?

[bigjohn]

it doesnt have a lvl 10 spring because ive replaced the spring, its a regular RT body, not the ULE, and it does it all the time.

please help Im going crazy

[MonsterMag]

your tank might be screwed into far, it may be restricting air to the valve , did you check the on/off and all the orings?