FORUM RULES UPDATED - The forum rules have been updated to continue to provide a friendly and safe environment for our member community. Please take a moment to review the updated rules and our terms of use and privacy policy. Click here for Forum Rules which has links to the 'terms of use' and 'privacy policy'.
Mikey, The last Merc with a distributor was a 1979 inline six. It had one coil. Where exactly did the arcing come from? Wires can go bad, but if you have spark, the coil and switchbox are working.