Basic Pneumatic Cannon Queetions

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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BeaverRat
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Joined: Wed May 05, 2010 9:15 pm

Ok, strange thing going on. I pump up the valve and it holds, but I can hear a small amount of air flowing out of the tiny hole on the top of the inside of the echaust port. When I reach inside and plug it with my finger, it stops leaking. Air is not actually leaking out of the main diaphram, just a little bit out of the the pilot hole (not enough to fire it).

What could be causing this?
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