Share your craft projects
Make new craft buddies
Ask craft questions
Blog your craft journey
Oh, and from my electronics days:
Coils hate change. They fight it. They do it by increasing output voltage to stay off death (so to speak). That's how they work for firing plugs. So, when the points open, voltage keeps increasing until it gets to a point a spark can jump that gap (hopefully at the right time).
Removing a coil wire can be another approach to convincing the coil to keep raising voltage, until it gets to a point it jumps a gap and ends the process. In this case, pulling the coil on a high energy ignition would make me the gap.
SIDE NOTE: The above is why rigs with a lot of miles on them start eating rotors and rotor caps.
That's caused by the teeth of the distributor wearing, so the position of the rotor no longer aligns with the cap contacts and, instead, that voltage builds until it jumps a gap past the contact (the point where it should have fired), beating on the components so they have to be replaced in a fraction of the time they would have to be when all the gears meshed tight.
That short rotor and cap life can be, instead of, say, 70k miles, a couple thousand, or even hundreds.
Other interesting things happen when distributor gears wear and cause coil voltages to climb higher than normal. Things like, those expensive plug wires not being able to contain the voltage, creating a very visible corona effect under the hood, when the light is low.
Too, that corona effect can even show around later coil types, indicating they are taking a hit too.
Coils hate change. They fight it. They do it by increasing output voltage to stay off death (so to speak). That's how they work for firing plugs. So, when the points open, voltage keeps increasing until it gets to a point a spark can jump that gap (hopefully at the right time).
Removing a coil wire can be another approach to convincing the coil to keep raising voltage, until it gets to a point it jumps a gap and ends the process. In this case, pulling the coil on a high energy ignition would make me the gap.
SIDE NOTE: The above is why rigs with a lot of miles on them start eating rotors and rotor caps.
That's caused by the teeth of the distributor wearing, so the position of the rotor no longer aligns with the cap contacts and, instead, that voltage builds until it jumps a gap past the contact (the point where it should have fired), beating on the components so they have to be replaced in a fraction of the time they would have to be when all the gears meshed tight.
That short rotor and cap life can be, instead of, say, 70k miles, a couple thousand, or even hundreds.
Other interesting things happen when distributor gears wear and cause coil voltages to climb higher than normal. Things like, those expensive plug wires not being able to contain the voltage, creating a very visible corona effect under the hood, when the light is low.
Too, that corona effect can even show around later coil types, indicating they are taking a hit too.
