Row Boat Motor Magnetos

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  • Buccaneer
    Buccaneer
    US Member - 1 Year
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    #11522

    I haven’t had much luck with replies regarding the magneto (base mount, tractor style)
    for the Wisconsin M, but will try again.
    The original mag was not included with the Wisconsin, nor any mag for that matter.
    (Kind of like when you were a kid Christmas morning with a new toy and no batteries
    for it!)
    Anyway, I got a Bendix Scintilla H1-4 magneto to play around with.
    It shouldn’t be too hard to adapt a plate to the bottom to mount
    it to the mount holes in the Wisconsin. Figuring out how to
    couple the magneto to the Wisconsin’s magneto drive shaft will be
    trickier. The magneto has an impulse coupling, which I’m not sure
    can be used. No idea how the original missing Elkhart magneto was
    built, or if it was designed to run in either direction. The Bendix
    definitely won’t run CCW with the impulse mag on it.
    I might have to turn the magneto into a distributor and hook
    it up to a battery if all else fails.
    Any thoughts on using the impulse coupling, or suggestions in general
    most appreciated.
    Thanks.


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    Buccaneer
    Buccaneer
    US Member - 1 Year
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    #84354

    I tore apart the magneto today, cleaned it all up, tested
    the coil on the Stevens, and put it back together, less the impulse dog,
    coil spring and coupler. It "sparks" a plug just by spinning the armature
    by hand, so that’s a good start. It’s designed for CW rotation, and
    It does "not" spark when spinning CCW. I presume that’s because of
    the point’s cam, which is ground into the armature shaft.

    I’ve never started a RBM before, but assume as others that I have
    watched being started, that my Wisconsin would be started by
    bouncing it off compression. Therefore, I will leave the impulse
    "guts" off the magneto, as I don’t think the mag will spin backwards
    with that on. Hopefully it will have a hot enough spark as starting
    speed to "fire off".

    Not sure how I’ll couple the magneto to the Wisconsin yet.
    I won’t be able to advance the spark on this magneto while the
    engine is running. What would be a good "compromise" on the
    spark timing, so it idles decent and will go putt putt fast?
    A little before TDC?

    The condenser that came with the Bendix magneto tested at .48 mfd’s.
    The parts list shows the condenser as part # 10-58224Y.
    I find no reference to it on the Net. Could .48 mfd’s be normal????
    Thanks!

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    chris-p
    Canada Member - 1 Year
    Replies: 2461
    Topics: 157
    #84356

    I think you are in such unfamiliar waters you may have to plug your nose and go under!

    Sorry I cannot help, I am following along with interest though. Far out of my wheelhouse. Hopefully someone else has been down this path that can guide you.

    Good luck.

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    wbeaton
    Canada Member - 1 Year
    Replies: 607
    Topics: 66
    #84357

    Wish I could help, as well. I’m following along intently. Sadly, most of the RBM knowledge has either left this world or doesn’t post much (or at all) on this board.

    Wayne
    Upper Canada Chapter

    uccaomci.com

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    chris-p
    Canada Member - 1 Year
    Replies: 2461
    Topics: 157
    #84358

    I believe the set up is very similar to my 1914 Ferro? Perhaps a more suitable donor would be best? Not sure.

    Buccaneer
    Buccaneer
    US Member - 1 Year
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    #84359

    Thanks guys, guess I’ll just be a guinea pig and try to
    get the mag mounted and see what happens.

    I was also wondering about a "spark plug" for the Wisconsin.
    It takes a 1/2" pipe thread. They’re still available for
    Maytags and Model T’s, but not sure if it matters what
    I get. I also see advertised 1/2" NPT to 14 mm thread
    conversion pipe fittings for sale. That’s an option,
    but I still wouldn’t know what heat range.
    Thoughts?

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    Buccaneer
    Buccaneer
    US Member - 1 Year
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    #84360
    quote Chris_P:

    I believe the set up is very similar to my 1914 Ferro? Perhaps a more suitable donor would be best? Not sure.

    Chris, curious, but does your Ferro run in either direction?

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    cajuncook1
    US Member - 1 Year
    Replies: 681
    Topics: 62
    #84361

    Buc, I think Chris and Wayne have offer some good advice. Seek out the RBM special interests captains. I believe they are located in the inner sanctum. Jack Crabb has some good information on his site. Art D has some literature for sale as well. I starterd on my 1916 Evinrude RBM a couple of years back, but life got in the way. Hope to get back to it soon.

    I do wish our inner sanctum had more information about RBM’S

    You can join the RBM AOMCI chapter/group. I’m sorry, I forgot who leads that group. Maybe someone will know and contact you.

    Cheers and enjoying your enthusiasm.

    Cajun

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    wbeaton
    Canada Member - 1 Year
    Replies: 607
    Topics: 66
    #84362

    I believe Chris Scratch is the Prime Minister of the Southern Ontario Rowboat Motor Chapter.

    Wayne
    Upper Canada Chapter

    uccaomci.com

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    david-bartlett

    Replies: 1228
    Topics: 105
    #84364

    Tom,

    I wish I could contribute to this thread, but like others, this one is over my pay grade!

    I admire your perseverance with these cool motors you come up with. You do great work and add a lot to this hobby. Keep it up.

    bobw
    bobw
    US Member - 1 Year
    Replies: 517
    Topics: 24
    #84366

    I’m same as David B – I can’t help figure out this magneto setup but I admire your tenacity in restoring/re-creating the history of these old motors. You really do some fine work.

    Bob

    1954 Johnson CD-11
    1956 Johnson RD-18
    1958 Johnson QD-19

    Buccaneer
    Buccaneer
    US Member - 1 Year
    Replies: 2992
    Topics: 835
    #84367

    Thanks all for your support, encouragement and tips. Jack Craib has a great site,
    and no doubt a wealth of knowledge, but unfortunately, he’s unable to
    help out right now.
    I try contacting the Prime Minister, but I’m not too savy on
    Royal etiquette!

    quote cajuncook1:

    Buc, I think Chris and Wayne have offer some good advice. Seek out the RBM special interests captains. I believe they are located in the inner sanctum. Jack Crabb has some good information on his site. Art D has some literature for sale as well. I starterd on my 1916 Evinrude RBM a couple of years back, but life got in the way. Hope to get back to it soon.

    I do wish our inner sanctum had more information about RBM’S

    You can join the RBM AOMCI chapter/group. I’m sorry, I forgot who leads that group. Maybe someone will know and contact you.

    Cheers and enjoying your enthusiasm.

    Cajun

    Prepare to be boarded!

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    jimparrott
    US Member - 1 Year
    Replies: 23
    Topics: 2
    #84368

    Buccaneer,

    Ferro RBM advertisements stated the magnetos were reversible. Try Autolite 3095 or Champion 25 spark plugs. Hope this helps.

    Jim

    Buccaneer
    Buccaneer
    US Member - 1 Year
    Replies: 2992
    Topics: 835
    #84377
    quote JimParrott:

    Buccaneer,

    Ferro RBM advertisements stated the magnetos were reversible. Try Autolite 3095 or Champion 25 spark plugs. Hope this helps.

    Jim

    Thanks Jim. I believe I might have used the Autolite 3095 on a Maytag engine
    once upon a time.
    I received an email reply from the Prime Minister regarding some of my question on
    RBM magnetos. He believes that all the magneto’s he’s seen on RBM’s had some
    type of spark advance. Also, as you mentioned, he says that Ferro’s mags
    were advertised to run in either direction. Furthermore, he does not
    believe any RBM mags used an impulse coupling.

    Not sure if I could "build-in" a spark advance somehow, using a points plate
    that swivels. If so, it would have to be so the 70 year old coil wires
    didn’t move back and forth each time.
    First I’ll figure out how to mount and couple the mag, then ponder lack
    of spark advance.

    Does it look like this original Elkhart magneto had any kind of spark advance?


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    stanley
    US Member - 1 Year
    Replies: 284
    Topics: 96
    #84378

    Found this tidbit on line.https://books.google.com/books?id=K3MoN … or&f=false Seems to imply there was an advance

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