I was under the car yesterday and decided to check on the condition of my cap/rotor. PO said he replaced not long ago. Spark plug wires new as well. So I take off the cap and whoa...it sure is messy under there.. It looks like he had tightened the cap down too tight so that the rotor had actually started to melt away into the cap. Interesting. I take the cap and rotor off for closer look and it looks like the cap wasn't centered over the rotor either. So there is a little groove worn into the cap that is not centered over the little carbon button in the middle of the cap. And the burn marks electrodes on the inside of the cap are all along the bottom of the electrode where it is molded into the plastic. So, i cleaned it up and will now see if it makes any difference. Damn PO!!! Is there anything I can spray on the distributor (under the cap area) to clean all the dirt and crap away with? One more thing...I checked to see if there were any sparks with car running in the dark. I saw sparks at all cylinders. Very small and faint right at where the wire clips into the plug. Is that ok?

 

Irregardless of what the "PO" says, I would replace the cap, rotor & wires with the correct AC Delco (or NAPA/Eclin) replacement parts.

 

Yes, And dont just start "pullin wires "replace them one at a time...

 

Without ever doing it, I would suggest a non-conductive electronic cleaner spray for the distributor. The stuff should do the job and not harm anything.

 

Or wd-40...best to just buy new...cheap enough.