Burned distributor plug wire terminals.
Trying to run down a rough running engine. Changed plug wires..No help.
Pulled the cap and noticed 2 things.
1) Black gease on rotor center
2) one or two brass terminals have a rough burned look
I'm assuming the black looking grease is a lube for the rotor contact? I should know since I'd be the one who put it there..but that was 15 years ago..grease looked filthy...
Is it normal to have only some terminals burned looking? If not what causes it? Too much play in distributor?