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Eart magnets for magneto repair?

A

Anonymous-0

Well-known Member
Often magnetos get weak due to weak magnets. Perhaps not real often, but anyway I was wondering if a person could just stick a few on the sides and get a quick fix without a tear down?

In case a few don't know what earth magnets are ....well lets just say you ain't seen nuttin yet. If you take about three or four smaller than a dime and hook them together in one hand and three or four in the other you can't push them together one way. Yet if you turn one stack around you will get a finger tip blood blister faster than the cuss words can come out of any humans mouth. Very very powerfull little things.

Never tried it but who knowns what a idle brain can think of?
 
It would be easier just to convert the mag to a distributor by using just the points in the mag and an auto type coil and battery voltage. Hal
 
To wire the mag to an outside coil, you have to disconnect the internal coil from the points, but leave the wire to the outside terminal connected. Hook up your outside coil with the + side to switched battery positive and the - side to the terminal on your mag (if it has a + ground, then reverse). If you have a mag with an external coil wire, you can run your secondary coil wire to the center tower on the "distributor cap" on the mag, and you're set! Just be sure your external coil is set up for the correct battery voltage (use a 12V coil for a 12v system or a 6V coil for 6V system). also be sure to observe the proper + or - ground. HTH
Good Luck and God Bless.
 
The wiring has been well covered by Revredneck and here's a pic of a mag theats been converted. Hal
a918.jpg
 
The north and south poles of the magnet have to positioned correctly so that voltage is produced in the rotor as it moves in the magnetic field. I doubt just sticking a magnet on the side will accomplish anything.
 
Works fine as long as the impulse is still working. If not, you've got don't get proper timing throughout the range.
 
Seems it's pretty easy just to recharge the magnets when needed. I've got a large magnet charger here that came out of an old magneto repair shop. Just takes a few seconds to charge a magnet unless the mag is taken apart first. Usually, magnets hang on to their magnetism pretty well as long as they are near another piece of metal. When in a mag, they are always near. But, take them out and they go dead quickly unless you stick a scrap piece of metal on them. When magnets sold new, by Wico, Fairbanks, etc. they came with a "keeper" stuck to them so they wouldn't lose their charge while sitting in the box.
I've found very few magnetos that weren't getting spark due to dead magnets. More often is a stuck or broken impulse spring, coil, points, condensor, etc.
 
I you put magnets on the outside they would have to be reversed to stick on, this would ruin the magnetism in the whole setup.
In other words it won't work.
Walt
 
Don't think it will work like you think. If it's a modern internal alnico magnet probably still has all it needs for the rest of your life unless it's been dragging but for those and horseshoe nickle colbalt magnets a good recharging on a magnet charger made for such will be enough. Custom made Vertex racing mags are now set up with internal rare earth magnets in the rotor but you can hardly turn them by hand and they run higher amps coils and condensers putting out so much fire the darn points are done burnt up from one pass down the track. More money than brains when points cost $120 a set too.
magneto service
 
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