The engine in my 62 Falcon 170 has an unsteady idle and it feels like it is missing even at cruising speeds. I checked the dwell angle variation of the distributor, and it seems like it is within spec.
I connected my Heathkit Ignition Oscilloscope and observed the spark waveforms. Cylinders 1 and 6 intermittently have a strange waveform that is not shown in any of the reference materials. Here are drawings of a good waveform and of the one that I'm seeing. The bad waveform only shows up...
Rough idle and strange waveform on oscilloscope
I connected my Heathkit Ignition Oscilloscope and observed the spark waveforms. Cylinders 1 and 6 intermittently have a strange waveform that is not shown in any of the reference materials. Here are drawings of a good waveform and of the one that I'm seeing. The bad waveform only shows up...
Rough idle and strange waveform on oscilloscope
