All other plugs had a brownish tint at the end. except for one and 3 which had an oil film ond not working. If I cleaned the oil off they would appear new. No discoloration of porcelin at all on any plugs externally. Insde some slight cooked oil buildup. 2468 no oil buildup at all.

I know my timing light doesen't work I tried it on all the wires. If I jiggle the pickp wire it's work momentarily. Not long enough to get a reading.