[Jim/GA]

Thanks, Tom.

The one I am thinking about looks like it started out as a conventional flat black disc, but you took a saw and cut it twice, once on each side of the places where the clips snap on to hold the cap tight.

This provides a strip to hold the wire from the coil in place over the top of the rotor, but leaves both sides of that open to see the inner workings. Just temporary, for diagnostics.

I made one long ago for myself. Now trying to find a source to be able to advise others (if they don't want to make one, like I did).