It was working fine until I took everything off to see how it looks like on the inside. The only problem I encountered was both of O-rings came off of the expansion chamber (I've only replaced one out of the two broken O-rings). All the screws are in the right place and all parts are in the right position. Is the spring (attaches to the expansion chamber below barrel and paintball chamber) supposed to be placed in at an exact angle... I hear no leaks, not even the sound of CO2 coming through, nothing... Can it be a problem affiliated with the hammer and how the trigger was suppose to set it...? PLEASE HELP because I really want to test out my new barrel and bolt.