Leak inside gun?

[Lvis201]

Hey guys, i just got a new (actually used, but new to me) 68 Classic. When i screw my nitrogen tank in, a bunch of air starts escaping through the barrel and wont stop. near where the ball drops into the chamber. any suggestions? everyone on it is stock. 1 star left.

[AGDlover]

does it have a lvl10 or lvl7?

[Lvis201]

Lvl 7. the stock one.

[McMagaman]

Take the field strip screw out and remove your valve. Then use a flat object to unscrew you power tube tip. http://www.airgun.com/manual.shtml check out these diagram here for the classic valve it will help you learn about your marker. Then check the orings inside the tube there probably old and leaking air. Our you can check if there is anything preventing the bolt from cocking all the way back. My bro got an oring behind his bolt once when he first got his mag. This caused the bolt to vent air, it turned his marker into a fire extinguisher and his co2 tank froze up and he couldn't get is tank turned of and wasted a whole tank of air. Lucky we were just out testing our guns and know one seen it would have been embaracing.