Built my Shocker, need Help..

[Skeet]

I dint put tehm in, they were allready in..one was loose however..im not quite sure which side would affect what, tbh.
I read on the tech site, that they should be fluch with teh back...exactly how flush tho?

 

[robof9]

Taken from ZDS Paintball
If you are unsure about the depth, you can hold the solenoid inserts up to the bottom of the body and line up the o-rings on the inserts to the set screws on the bottom. The following picture is a CAD rendering of the a transparent body, so you can see the air ports and set screw holes (red). The blue marks the o-rings