Here is a picture of the rotor in my 3.0 six. It is coming apart. I have a Crane Hi-6 with a Crane PS 92 coil. Am I getting too much voltage for the stock rotor to handle?
Thanks
Van

I can't see shit in that photo.

Yeah, need more photo, but that looks like an epoxy fill. If it's a stock rotor that usually means there's a resistor embedded in the epoxy, which could be heating and raising the epoxy. You should have seen instructions in the Crane installation instructions to use a non-resistor rotor. But hard to tell what's happening in that photo.

If you are the DIY type you can Dremel out the epoxy and resistor, replace with a solid piece of wire (like from home wiring), and then fill with epoxy again. Or you can buy one from aircooled.net or the like...

way too much work for a cheap part... I change the rotor with any distributor cap/sparkplug/wire set change...

The modified rotors aren't that cheap... I may even have a used one. I stepped up to a mallory.