ORIGINAL: arapoda

Bare with me on this problem, but it's a continuation on my clutch bell saga that some of you are aware of.

Okay, so after buying a new clutch bell, attaching it and sorting out the mesh with the spur gear, I now face a new problem. Today I went to give the car a test run, so I pulled the pull start but the clutch bell gear locked up.

Now, a few days ago I realised that if the screw on the clutch bell is tightened too much, the clutch bell cannot spin. Because of this, I leave the screw slightly slack to allow it to spin. Today, much to my frustration, I found that as the clutch bell gear meshes with the spur gear (and when the pull start is tugged) that the screw tightens itself into the thread (thus locking up the gear). I'm baffled as to how to find a way around this?

I've got thread lock, but surely this must only work for screws that are tightly threaded and not slack screws?

Here's a picture of the afore mentioned gear and the problem screw in question:



Any suggestions folks?

I'll be offline for a few hours, but I'll check back later.