When she settin there not running with the ignition on (battery powered coil ignition NOT a Magneto) theres voltage on the coils input (from ign switch) but usually NO VOLTAGE (with respect to frame ground) on the coils output to distributor terminal because if the points are good and closed thats a direct to ground.
With ignition on and a test lamp on the coils output (to distributor) if you crank the engine over the light should flash on (points open) and off (points closed)
If theres always voltage on the coils output the points are badly burned or not fully closing
FIRST THING TO CHECK IS THE POINTS FOR CLOSING AND NOT ALL BURNED AND CARBONED UP
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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