I'm a pilot & aircraft mechanic. Mags are alive and well on aviation engines still. Usually, they're 2 Mags, and 2 plugs per cylinder. Both mags fire all cylinders and are independent of one another. This is for safety and performance. Usually only one mag has an impulse coupling. It does 2 jobs, increase the power of the spark while starting and retards timing to accomplish this. That also aids in starting. An impulse coupling should never be operating at idle, its a starting aid only.
That most likely came out of a Wisconsin. Not all of their mag mounting used gears, in fact, the one you have looks like it came off of the "A" series because of the bottom mounting.
Thanks for the video,
Steve
Georgetown, Texas
Ap0ll010 3 months ago
Good video. You are correct about the price of them. I have purchased several complete engines just to get hold of a good or even salvagable Mag.
MakeDoAndMend1 1 year ago
Like the little test stand you made
Jason1Pa 1 year ago
I'm a pilot & aircraft mechanic. Mags are alive and well on aviation engines still. Usually, they're 2 Mags, and 2 plugs per cylinder. Both mags fire all cylinders and are independent of one another. This is for safety and performance. Usually only one mag has an impulse coupling. It does 2 jobs, increase the power of the spark while starting and retards timing to accomplish this. That also aids in starting. An impulse coupling should never be operating at idle, its a starting aid only.
Lov2tinker 1 year ago
Hey Pop, Magnetos are still industry standard in aircraft engines, right?
ushouldntjudgeme 1 year ago
That most likely came out of a Wisconsin. Not all of their mag mounting used gears, in fact, the one you have looks like it came off of the "A" series because of the bottom mounting.
radicalnegative1 2 years ago
Mags like that are still used on basically all piston powered light aircraft, two for redundancy.
They're just a good old rugged ignition system.
tonytiger75 2 years ago