Home › Forum › Ask A Member › evinrude rbm coil test and repair › Re: evinrude rbm coil test and repair

#68079
Tubs
Participant
    quote kees:

    quote Tubs:

    what a solution, WOW !
    hats off, a great compliment for your work here
    and that you share it with us
    including the attached photos
    😀 😀
    .

    Well Kees I haven’t gotten it to
    work as the coil is too tall and hits the
    top of the flywheel. The pictures show
    what challenges I face as to getting more
    room. Still no solution as yet.

    The faster a magneto spins the stronger
    the spark. If I can get this worked out I’m
    sure it will make a spark and the motor
    would run but will it be strong enough for
    it to start pulling the motor over by hand.
    The original configuration is essentially 2
    coils. It may turn out to be a waste of time.

    quote George Emmanuel:

    the raised ridge that is the reservoir for the tar is the complicating factor,


    The raised wall that holds the tar could be
    removed for more width if you needed it.
    My issue is the height.

    quote Jim Moffatt:

    very thin gauge wire wasn’t available in those early days.

    The coil can be placed anywhere on the laminate. And its likely
    that grinding down the laminate to fit a modern coil would cause no problems.

    What Tubs has done using a tight fitting butt joint between the
    old laminates and the coil laminates should also work.

    The wire looked awful fine to me Jim and
    there seemed to be a ton of it.

    My attempt to file down the laments and just
    put a coil on one side ended when I couldn’t
    the laments out of the coil without damaging
    the cover. I didn’t know if having the coil off
    center would work. You have answered that
    question for me but I was using the same coil
    so it wouldn’t have fit anyway.

    I did make an effort to have the laments I
    shortened touch Jim but I don’t know if its
    necessary. Some coils just have one lament
    inserted into the rest. So my thinking
    was if the centers didn’t touch the over and
    under contact should work. What do you
    think?

    The wife was sneezing and coughing all
    last week and now I got it. Hard to be
    creative when you feel like crap.

    A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.