1945 evinrude lightfour

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  • tinkerman

    US Member - 1 Year
    Replies: 272
    Topics: 46
    #262128

    I’ve got a couple easy questions. The coils on this motor check out good. Wires are crumbly so I’m gonna put new plug wires and wires to the points/kill switch. First off would it be ok to LIGHTLY coat the coils themselves with epoxy just to give them a little more protection than the electric tape type covering they now have? Also I’ve noticed that one of our mbers (buccaneer) religiously replaces the condensers when he’s getting an old one up and running. Is this due to the fact that if there bad you could destroy an old hard to find coil or just superstition lol. What type/size condenser would this motor take and are they available? When I got this thing it was stuck and I managed to get it freed up pretty easy. The top cylinders seemed low on compression compared to the bottom and I could tell I had a stuck ring on one top side, so I took the cylinder off and freed the ring up and all seemed ok with compression so ive kept going. It’s actually a pretty solid survivor. Thanks for any input

    It's a jungle out there.


    tinkerman

    US Member - 1 Year
    Replies: 272
    Topics: 46
    #262134

    I may need a carb diagram for this motor also. I’ve got some parts soaking now (not the rubber ones) are there still rebuild kits for these? Man it’s gummed up!!

    It's a jungle out there.


    Buccaneer

    US Member - 1 Year
    Replies: 5905
    Topics: 906
    #262138

    I don’t think I’d use epoxy on the coils. It may cause problems down the road (or lake).
    There is a special product, kind of an electrical varnish that’s an electrical insulator.
    I can’t remember the name now, but it could be used on suspect areas if needed.
    They’re probably okay as is, but a coil tester, using the probe, would tell for sure.

    I rather replace antique condensers than presume the old ones don’t have leakage
    or are still within specs. Often when I check the capacitance on the old condensers,
    they read higher than what they are suppose to. The electronic capacitors seem
    to bring new life to old motors.

    According to the condenser charts, the Lightfours, depending on year made, use
    either a .1 or .2 mfd condenser.

    Prepare to be boarded!


    Buccaneer

    US Member - 1 Year
    Replies: 5905
    Topics: 906
    #262139

    I’m not aware of a good diagram for a Lightfour carb. The Zephyr carb is very similar,
    and there may be better diagrams of those.
    This is the best I have…….
    49_9.7HPpg7

    Prepare to be boarded!


    tinkerman

    US Member - 1 Year
    Replies: 272
    Topics: 46
    #262142

    Thanks buc. Are there special tools required to check the condensers? I’ve got a needle type circuit/ohms tester. I still can never remember which settings for testing the coils. I usually keep playing with it till I get a reading then check the other one to see if it’s the same. If it is then usually their both ok lol

    It's a jungle out there.


    Buccaneer

    US Member - 1 Year
    Replies: 5905
    Topics: 906
    #262143

    I have a capacitance meter that only checks the mfd value.
    Mainly I use it for curiosity when working on antiques.
    I don’t bother checking condensers for leakage on my Steven’s tester,
    as that function doesn’t work too good anymore on my machine.
    I usually use an auto function ohm meter, so I don’t have to select a certain
    range, but all the coils I’ve checked are under 10k ohms on the secondary windings.
    I like to install new condensers or capacitors on every motor.

    Prepare to be boarded!


    bobw

    US Member - 1 Year
    Replies: 1883
    Topics: 49
    #262144

    Corona Dope might be the best option for coating the coils.

    Bob

    1937 Champion D2C Deluxe Lite Twin
    1954 Johnson CD-11
    1957 Evinrude Fastwin 18
    1958 Johnson QD-19
    1959 Johnson QD-20

    “Every 20 minute job is only a broken bolt away from a 3-day project.”


    tinkerman

    US Member - 1 Year
    Replies: 272
    Topics: 46
    #262155

    ill check it out thanks bob

    It's a jungle out there.


    Buccaneer

    US Member - 1 Year
    Replies: 5905
    Topics: 906
    #262157

    BTW, That’s the name of the product I was trying to think of!

     

    Prepare to be boarded!


    2fast4me

    US Member - 2 Years
    Replies: 274
    Topics: 21
    #262182

    Ok Tinker, the coils check good, i would caution you on removal of that old wire. I ruined a set of Good coils by desoldering the wire. I use a dremel with a cut off wheel to slice the wire off of the terminal, no heat or flexing involved until time to reattach the wire.

    2Fast4Me


    tinkerman

    US Member - 1 Year
    Replies: 272
    Topics: 46
    #262217

    Ugh oh too late! I think it’s ok though. Good idea for future reference for sure

    It's a jungle out there.


    dave-bernard

    US Member - 2 Years
    Replies: 1851
    Topics: 28
    #262218

    why not cut the wire about 1/4in from coil and solder the new wire to the old stub? just asking.


    2fast4me

    US Member - 2 Years
    Replies: 274
    Topics: 21
    #262256

    THANKS

    Done that also Dave… Good point.

    2Fast4Me


    tinkerman

    US Member - 1 Year
    Replies: 272
    Topics: 46
    #262394

    Ok I’ve rewired the mag with new plug wires and secondary wires. Got the carb cleaned up pretty good. Haven’t doped the coils yet. On the carb, there was a black plastic piece with a hexagon lip to accept a nut from the linkage. This was broke. I somewhat rebuilt it with epoxy, we will see if it holds up. So far so good on bonding strength as there is quite a bit of resistance to turn the baffle but it engages properly

    It's a jungle out there.


    tinkerman

    US Member - 1 Year
    Replies: 272
    Topics: 46
    #262399

    Ok any idea where this bushing goes? Magneto related I’m thinking. Also do the wires from points, condensers, small coil wire and one side of kill switch just wire together in a bundle? I thought I took better pictures

    It's a jungle out there.

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