The use of a fish scale may help quantify the before and after pull strength to determine the effectiveness and also small changes in your process can be measured to show what little things improve your process. THANKS FOR THE VIDEO, VERY INTERESTING!
you are correct with the tapping. it does indeed help with realigning the molecular position. it is possible to magnetize steel by just pounding on it.
Interesting , t say the least. Way back in the 70's when I was a Wisconsin Air Cooled Engine dealer, we used lots of those magnetos, makers such as Wico and Fairbanks Morse were the most common.. Most ( not all ) of the Wisconsin engines used them as their ignition source. I remember when we used the condensers to play dirty tricks on guys who didn't know about the voltage stored in them.
We used to magnetize tools, large screwdrivers., etc.. by winding the negative lead of a welding cable around them, using reverse polarity, while welding. Easy way to magnetize a piece of round stock to pick up something out of reach. Like bolts or nuts dropped into belly pan on dozers, etc..
I like this video alot never knew how to do this but I would like to know more about the "tool" or device or whatever it's called that you are using to charge the magnets. How did you build it? what's it called? What are the parts? I want one.
Quite inspiring, thank you . I may have to recharge the mag on my old D2 Cat starting engine and have a much better idea of how to go about it with your video and design and opp. instructions from other pages. Thank you much.
Thanks for the video I have been wanting to make one of those magnet chargers for my Magneto but I am unsure of how to make the wire connection could you show me or make a video showing the connections thank you
Wrap 2 cores, equal number of turns, same wire, same winding direction. You end up with 2 pigtails per core, inner (against the core, first turn), outer (away from the core, final turn). The idea is the current flows opposite directions in both coils. So, let's start at B+ (positive terminal of power source), and label our coils 1 and 2 (for convenience). B+ to switch input. Switch out to inner pigtail coil 1. Outer pigtail coil 1 to outer pigtail coil 2. Inner pigtail coil 2 to power source negative. Voila, it's done. (Series wiring) Wanna get fancy? You can wire them in parallel too. Coil 1 inner and coil 2 outer to switch output term, coil 1 outer and coil 2 inner to power source negative. You just have to make sure your 2 coils are pointed the same way (inner pigtail down, or up, for both). Heavier wire, and more wraps are better than thinner and less. Make sense now?
I never considered the possibility that the flywheel magnets would get weak over time, but it appears to have happened to the Kohler K241 on my wood chipper. It wouldn't produce a good spark anymore and became hard to start. I tried a new coil, points and condenser with no improvement. I had to resort to a battery and car ignition coil in order to run the engine. Too bad I didn't see this video first, although the setup Mike has won't physically accommodate the flywheel. Constructing a fixture for a single job is hardly worth it. Dang. The Kohler K series engines were designed to last generations and mine is pristine after 50 years only to be disabled by a weak magnet. Who woulda thunk.
@@805ROADKING I saw videos about using very strong neodymium N52 magnets to remagnetize an alnico magnet. Of course the hard part is attaching and then removing them. I'll let you know how it works out. Yes, flywheels are available but most have alternator magnets and/or starter ring gears and won't fit. Rare is the 10hp pull-start only with a Repco magneto.
Say 805, Some pointers Mike might try while charging magnets. Try laying the magnet ends over on their edges first one way then the other instead of just doing the ends. When he's ready to remove the magnet, flip it on its edge again with the poles ends hanging over the top of the charger and put the keeper on. Then turn off the power to the charger. These things might help you notice a better charge.
Would it not be easier .....unless you have lots to do ..... to simply wrap wire around the magnet itself because the field would then be exactly where you need it.
