distributor rotor, grease?

[TomInCologne]

Good Morning, FordBarner...


i was watching the rotor on my distributor through the transparent cover the other day in the dark whilst the engine was running and noticed not only the sparks on the four connections to the electrodes, but also sparks in the middle, where the rotor connects to the contact from the coil.


After opening the cover, i saw that the rotor was darkened (which may be totally fine), but also the contact within the cover was very pitted. I assume that that is not good for the contact, as evidenced by the sparks when the engine is running.


I put some graphite paste onto the rotor and that stopped the sparks.


I did not find any recommendations regarding that contact. Graphite paste? Copper paste? Nothing at all? What do you guys do?


Tom