"But - I still can't figure . . . if the spark path is basically in series with two spark plugs - how can one can fire and one fail to fire"
My response:
If theres an arcing path on the bad side of the coil (i.e. the side where the plug is that doesnt fire) the other (good side) can still fire its plug since on the side with the short (HV breakdown fault) the short provides the path instead of current arcing across the plugs gap. If you short out one plug wire the other still fires, and the same thing can happen if on one side of the coil a breakdown is allowing arcing current to flow at a place OTEHR THEN the plug.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
... [Read Article]
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