Got a navy here that broke a hammer hand. replaced it but it wouldn't cock. I replaced triggerbolt spring and sear and still would not cock. Just hammer hand spinning cylinder. Figured since trigger was wobbly, I replaced it. No go. Finally I took hammer out of good one and set it in--no cigar. The trigger and hammer are not catching. Is the frame too wide---? but screws go threw it. What's wrong here?