Board Thread:General Nerf discussion/@comment-30049823-20200112095504

So during the course of my Xventure Shorce project, I decided to try fixing the Turbo Advance that wouldn't rotate reliably and only fired intermittently. It wasn't working when I bought it, and the internals looked perfectly fine during disassembly and reassembly with swapped panels.

Fortunately I had a working one to compare side-by-side. The symptom was that sometimes priming it wouldn't rotate the drum far enough, and when there was a dart, it would only get dislodged but not really go anywhere. Also noteworthy: If there was no dart, the AR was wide open anyway and would dry-fire noisily.

The root of the problem was clearly the channeled rotator cylinder. The priming bar running down the top center of the blaster would rock a lever that slid an orange block with a peg that rode through the rotator cylinder's channels.

 