recharging magnets

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    seahuntboater

    US Member - 2 Years
    Replies: 58
    Topics: 42
    #203525

    Greetings. Does anybody know an easy way to strengthen flywheel magnets? For example is it possible to mark north south poles using a compass and then use another magnet somehow to increase their strength. I have spark but think magnets on Scott Atwater 3.6hp are weak. I have seen a video on youtube of some kind of tool that is out there and guys doing stuff with coils but there are also super strong magnets I am hoping you can hold or rub on the flywheel magnets. Just don’t want to do that wrong and get no magnetism.

    thanks Ralph

    frankr
    frankr

    US Member - 1 Year
    Replies: 5016
    Topics: 48
    #203533

    There are magnet chargers still in existence which plug into a regular wall outlet. BUT, you probably don’t need it. Magnets made since WWII simply don’t ever go bad. The story goes, they were invented for use in gyroscopes for the war effort.

    Tubs
    Tubs

    US Member - 1 Year
    Replies: 2932
    Topics: 167
    #203542

    Mumbles
    Mumbles

    Canada Member - 2 Years
    Replies: 4480
    Topics: 432
    #203552

    Most post war flywheel magnets were made of Alnico alloy which maintains its original magnetism much better than the pre war iron magnets which can lose theirs over time or from shock and will then require a recharge. Early flywheels should have a piece of steel or iron placed across the magnets poles to help retain the magnetism whenever the flywheel is removed. Not so much with the Alnico magnets. No flywheel should ever suffer shock, as when being struck with a hammer.

    I tried for several years to find a Stevens brand magnet charger but gave up and built my own. It’s a Gingery design but is similar to a Stevens unit.

    Here’s a link to an older post here about magnet chargers and it also includes a YouTube vid of a Stevens charger being used.

    Recharge Magnets on Fly Wheel

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    wbeaton

    Canada Member - 2 Years
    Replies: 815
    Topics: 81
    #203568

    Mumbles I must say that every time I see your magnet charger I become envious of your talents. Such a nice machine you made.

    Wayne
    Upper Canada Chapter

    uccaomci.com

    1 user thanked author for this post.
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    Tony Fain

    US Member - 1 Year
    Replies: 4
    Topics: 2
    #203828

    I don’t
    know about fly wheel magnets, I used to get magnets for old tractor magnetos recharged at industrial magneto shops. Might be worth looking into.

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    amuller

    US Member - 2 Years
    Replies: 915
    Topics: 144
    #204029

    Me too. But magneto shops are getting scarce. Some auto elecric places (also getting scarce) will have a magnet charger but it’s hit or miss.

    Seriously, unless you have a large horseshoe-shaped steel magnet in your flywheel you are not likely to have a weak magnet problem. How are you evaluating your situation?

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