Help getting my 67 Evinrude 3hp started

Home Forum Ask A Member Help getting my 67 Evinrude 3hp started

Currently, there are 0 users and 2 guests visiting this topic.
Viewing 15 posts - 61 through 75 (of 85 total)
  • Avatar
    crosbyman

    Canada Member - 1 Year
    Replies: 1610
    Topics: 196
    #196087

    put a piece of Tye wrap on the top plug wire so you won’t mix them up ! the old wires had a tag crimped over the top wire showing “TOP”

    Joining AOMCI has priviledges πŸ™‚

    lindy46
    lindy46

    US Member - 1 Year
    Replies: 338
    Topics: 24
    #196093

    Get a genuine OMC/BRP carb kit with float. You probably just need a new gasket on the gas cap. Once you run it awhile at faster speeds, the smoking won’t be so bad.

    Avatar
    Elecmuso


    Replies: 38
    Topics: 1
    #196153

    Next challenge will e the cooling system. Gather this is where the water should be exiting? It isn’t!

    Impeller looked good.

    Water_outlet

    • This reply was modified 5 months, 1 week ago by AvatarElecmuso.
    • This reply was modified 5 months, 1 week ago by AvatarElecmuso.
    • This reply was modified 5 months, 1 week ago by AvatarElecmuso.
    Attachments:
    Avatar
    crosbyman

    Canada Member - 1 Year
    Replies: 1610
    Topics: 196
    #196163

    looks isn’t a reliable test …. change the impeller !

    Joining AOMCI has priviledges πŸ™‚

    Avatar
    Elecmuso


    Replies: 38
    Topics: 1
    #196166

    I’ve been looking at a ot of youtube videos and none of them show much on the way of water coming out of those holes. Perhaps it is ‘normal’ and I should look for even a small flow (I’ll only run it for a minima time). Is there a way to tell if the engine is staying cool without actually observing a particular rate of water exiting the exhaust? Are these typical of ‘normal flow’?


    • This reply was modified 5 months, 1 week ago by AvatarElecmuso.
    lindy46
    lindy46

    US Member - 1 Year
    Replies: 338
    Topics: 24
    #196177

    You won’t see a lot of water coming out – only a “mist” or “weeping”. Those little engines run a little on the hot side. You can check the block while running. Splash a little water on it. It shouldn’t boil off. Temp should be 145-160 degrees. I agree, always put in a new impeller on a new-to-you motor.

    frankr
    frankr


    Replies: 5234
    Topics: 48
    #196178

    You will see only droplets of water which just happen to blow out by the exhaust. The flat plate on the side of the powerhead gets blazingly hot. There is fire on the other side of that plate. They also get pretty hot right around the spark plugs, but further out should be cooler.

    Congrats on getting that folding Lightwin.

    Avatar
    Elecmuso


    Replies: 38
    Topics: 1
    #196217

    Thanks for the help. Yes I will put in new impeller but I don’t have iit yet.

    Are the folding lightwins particularly desirable at least from a collector’s point of view?

    frankr
    frankr


    Replies: 5234
    Topics: 48
    #196221

    A matter of personal interest, I suppose. Non-folders are plentiful. Not so many folders. Un-broken cases are hard to find.

    Avatar
    Elecmuso


    Replies: 38
    Topics: 1
    #196284

    So I had another look and that 2nd video above is pretty much exactly what I get – so I guess it is in fact running normally.
    I have one of these at work so I’ll take some measurements.
    Non-Contact Thermometer with Dual Laser Targeting – QM7221
    I have a feeling those temperatures are going to be scarily high though – you are right that flat plate on the side of the powerhead gets real hot.

    • This reply was modified 5 months, 1 week ago by AvatarElecmuso.
    Avatar
    Elecmuso


    Replies: 38
    Topics: 1
    #196295

    Exhaust

    plugs_side

    Attachments:
    Avatar
    Elecmuso


    Replies: 38
    Topics: 1
    #196299

    Here’s what I measured:
    1 and 2: 230 F (at one stage I was getting 300 F!)
    3 and 4: 170 F
    5 and 6: 170 F

    frankr
    frankr


    Replies: 5234
    Topics: 48
    #196304

    I never had one of those thermometers, in fact they probably hadn’t even been invented yet when I was doing this for a living, So I can’t comment too much on your readings. But I will say that the only ones I find surprising are 5 & 6. On the other hand, you are running in a can at unknown speed and time and with air bubbles mixed with the water So I’m not too alarmed — yet. Service the pump and get it on a boat and see what happens. And try not to worry so much.

    The motor hasn’t been used in salt water has it? Or has it?

    Avatar
    Elecmuso


    Replies: 38
    Topics: 1
    #196341

    I was given the motor by my father in law 20 years ago and it has been in storage since then, prior to that don’t know what use it had though I suspect it was freshwater use. Are they not compatible with saltwater usage? Or is it just not advisable on an old vintage.ouyboard like this one?

    Avatar
    crosbyman

    Canada Member - 1 Year
    Replies: 1610
    Topics: 196
    #196345

    salt is only useful for potato chips, salad and steaks ….and melting ice

    Joining AOMCI has priviledges πŸ™‚

Viewing 15 posts - 61 through 75 (of 85 total)
  • You must be logged in to reply to this topic.