FX dreamlite bottle- this fell out while adding power plenum,help!

[starlingassassin]

recieved the power plenum today for my fx dream lite bottle,

removed the bottle/grip/trigger guard/ barrel /etc...
screwed off the bottle adapter and started to screw on the power plenum and these 2 pieces fell out.

cant for the life of me figure out how to get the silver piece to screw back in,
the spring fits over a pin,
and the silver piece is hollow and captures the spring,
the silver piece has threads but will not screw in.

can anyone help me out?
its driving me crazy 

[Rat Sniper (AKA: PaulT58)]

That looks like the valve holder and spring for the valve pin.  If there is no air left in the breech, the valve pin should move freely.  If there is still air in the breech, it may be holding the valve pin closed, which is making it difficult to get the valve pin holder to start.  Loosen the regulator gauge to ensure there is no pressure holding the valve against the block.  It looks like the 2 parts that came out are #8 and #9.  Here is a parts diagram that might help:

 

[starlingassassin]

well, i figured it out lol

 I had been using my pinky to try and get it lined up inside and threaded,
but that wasn't working,
so I looked over at my new superior liner that came today and noticed that it was in a plastic tube with flat rubber endcaps,
grabbed the plastic tube and used it to push the screw in part down and get it threaded properly,

AND....... I got it on the 1st try WOOOOOOO