Jim wrote:
Inspect the protrusion on the rotor to see if its gap to the SG is about the same as the other two, and that it's not mangled.
You could also put a spark plug on the wire from the coil output, grounded on something of course, and listen for even snapping sounds. It's pretty obvious if one out of three is missing.
Air gap is supposed to be .016 to. 024. One protusion is at .016 the other two are over .024.
I didn't try the plug on the coil output test today.
I also guess I need to examine the distributor cap closer. It looks in good shape visually with little wear on the contacts.