Home › Forum › Ask A Member › 1975 Merc 650 running issues › Reply To: 1975 Merc 650 running issues
When we used that type CD ignition with the plate with timing slots on our Quincy Loopers,the disc acted as a pump & inducted moisture resulting in erractic firing. (missing). The fix from Quincy was to drill a 1/8″ hole in the bottom of the distributor cap. I attempted to race my 4 cylinder C that Quincy build 3 times with the ignition mis-firing & never knew what the issue was. It was our first time using that ignition. While testing at the Nationals it happened again. Took my distributor cap to the Quincy trailer & was promptly told about the fix by them & Gerry Waldman. Geez, why didn’t Quincy do it prior to shipping to me. The fix worked & I finished 4th in the championship ahead of the Quincy entry.