Xvalve Retaining Air After Degas

[alpha_q_up23]

What would be the cause of an X valve retaining air after I degas?
I was playing yesterday and when I went to service my mag, I degased my marker, took the macro line off, I took the valve out of the body and then the on/off shot out and flew right past my head.
I've tried looking up threads as to why this would happen, but have came up with nothing, anything advice would help.

[athomas]

If there is a check valve or on-off in the air line holding air against the valve, the valve can't release the air pressure. I assume by degassing, that you took the air away from the input to the valve. With no air in the front chamber, degassing should allow the regulator to release air past the regulator seat and out the inlet. If this does not happen, it means the regulator piston assembly isn't pushing the regulator valve pin assembly forward under static conditions. This could be caused by a stuck piston assembly or stuck valve pin assembly. Try cleaning those areas and make sure they are moving freely without restriction. Usually it is a stuck valve pin assembly, because the air in the valve puts forward force on the valve pin even if the regulator piston assembly doesn't.

[lordgore66]

That should be normal given that the x valve's regulator is similar in design to a CP reg or an ion reg. Once both sides of the reg are equalized, the air is sealed off and the trapped air is holding the valve sealed until the pressure drops inside the chamber.

[athomas]

As you move the valve back, the bolt will move away from the valve if any air is left in the front chamber. Any movement of the bolt will allow the level 10 vent hole to be exposed and the air will escape out the front. Once the front chamber air pressure is low enough that the force pushing back on the regulator piston assembly is less than the combined forward force exerted by the trapped air and the spring pack, the air should release out the air inlet.