My Piston on my SuperBolt II was came off the bolt. It got stuck down in my valve were i had to take everything out and redo everything. Now I tried to put it back on by pushin it but it statied on for like 3 shots and come off again and took it a oart to get it out now it is lyin next to me and i have no idea what to do because i can't get the piston to go all the way into the bolt. i need help, please respond.