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Old 11-14-2021, 03:30 PM   #13
eagle
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Join Date: Aug 2011
Location: Eagle Bend, MN
Posts: 2,026
Default Re: My 1st Model A (non Hotrod) - Starting....

If you want a real mess start throwing parts at the car. For no or weak spark condition: 1. lift spark plug straps a quarter inch, turn on ignition then run the starter by activating the starter switch from under the hood. Watch for spark. Should be hot blue and consistent, if not: 2. pull coil wire out of distributor and again run starter, is it hot, blue, and consistent? if not: 3. use a voltmeter and check the voltage on the hot side of the coil. It should be around 6 volts, then up to 12volts when points open. 3. then watch the distributor primary side of the coil as you slowly turn the engine over by hand crank with ignition on. Should alternate between battery voltage and 0 volts. If it is not going to zero or very close to it, then you have a point issue. 4. Clean points carefully and adjust. If the points are wore out or dirty the contact surface won't do a good job of supplying a good ground for the coil. 5. if the ignition switch is bad it also won't supply a good ground, check that with a voltmeter and points closed as well, should maintain 0V.
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