Last night I measured the voltage at the coil with the key in the run position and the points closed, and the reading was about 6 volts. That seems a little low, but is it low enough to cause problems? The reading with the points open was about 11.75.
I also measured resistance in the coil. The primary circuit was about 1.2 ohms and the secondary about 6.7 ohms. I compared those to another coil that I think is good and the good one was 1.5 on the primary and 6.7 on the secondary, so it seems like my "bad" coil is probably OK.
I looked at the ground strap from the block to the firewall, and it is there and looks OK. Is there anything more I should do to check it?
I double checked all the coil connections, and all the ignition wire connections, then fired the car up, and it still misses. The car ran smooth and strong in late March when I first replaced the coil for the last time, so that makes me think the points, plugs, ignition wires, distributor cap and rotor are all OK. In fact, the cap, rotor and points are practically new. They are the first things I replaced when trying to fix this problem after it started last fall.
Any additional help would be appreciated.
Thanks,
Bryan
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