[Y-Blockhead]

Originally Posted by Purdy Swoft

Carbon tracks from the tower area up to the metal housing of the coil will cause a short . Carbon tracks can be scraped off with a pocket knife and the coil should work again / This is mentioned in the service bulletins .

I agree. Carbon tracking causes a lot more problems with ignition systems than people realize. It helps to occasionally wipe off coils, distributor bodies and caps (inside & out) as a preventive measure.