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Evinrude 9.5hp plastic prop?

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  • Evinrude 9.5hp plastic prop?

    I picked up a super clean 9.5hp at a flea market on Saturday, to my surprise it seems to be in perfect working order. Even the impeller appears brand new.
    I've owned several of these before but I notice that this motor has a plastic prop.
    Both of my other 9.5hp motors have aluminum props.
    Did they switch to plastic in later years or is this some sort of 'spare' or temporary type prop?

  • #2
    Re: Evinrude 9.5hp plastic prop?

    I had a 1968 9.5 HP that had a plastic prop. I had no idea it was plastic until on a cold cold day I was running along and one of the blades snapped off. I replaced it with aluminum. No idea if the plastic prop was from the factory or not. It was already 28 years old when I got the motor.
    RJP
    2004 Four Winns 180 Freedom, 150 HP Evinrude Direct Injection
    1972 Chris Craft 31 Commander Sedan Bridge
    Various others at various times
    I've worked on and have access to pretty much all types of boats/motors.

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    • #3
      Re: Evinrude 9.5hp plastic prop?

      I'm used to seeing plastic props on the smaller motors but this is the first 9.5 I've seen with one here.
      I've got a 3hp, a 4hp, and a pair of 6hp motors all with white plastic props but all of my 9.5s have always had aluminum.
      I don't run in cold water with this motor, so I doubt that'll be an issue.

      Does anyone know if there is any advantage to a plastic prop?
      Were they used because they were cheap or were there other reasons?
      I would think that they would help limit gear damage if you struck a rock or stump but unlike aluminum, they're not repairable.
      Of course in 30+ years of boating I've never yet broken a plastic prop. I've dinged up a few aluminum props but that was in bigger water on a bigger boat.

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      • #4
        Re: Evinrude 9.5hp plastic prop?

        My 1964 9.5 came with a white plastic prop and today in 2012 after 48 years it is still in good working condition
        Make sure the plug is in

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        • #5
          Cam Milne,
          Toronto, Canada

          1950 Johnson 5 - TN-26
          1955 Elto 5 (Gale 5 based) - 5D11E
          1956 Eatons Viking 5 (Gale 5 based, incomplete) - 5D12V
          1958 Johnson 7½ - AD-12
          1967 Johnson 9½ - MQ-13
          1971 Evinrude Yachtwin 4 - 4136D
          1976 Johnson 15 - 15R76



          - all from freshwater and built in Peterborough

          "None of us is as smart as all of us"

          Comment


          • #6
            Re: Evinrude 9.5hp plastic prop?

            I was mostly concerned whether or not the Lexan prop was meant to be a full time prop or just a temporary spare prop like the one piece composite props you can buy for larger motors to save weight in the boat. When I bought my 19' boat it came with a graphite composite prop which was in a plastic tub, the papers with it said it was only to be used at low speed in emergencies and not to exceed 3000 rpm. I dumped it on eBay and got myself a duplicate aluminum prop to carry.

            I've got a 1990 3hp and a 1978 6hp with plastic props, but all of my 9 1/2hp motors have always had aluminum props. My 1973 9 1/2hp Evinrude came new with a three blade aluminum prop and it's still on it today. It was bought new by a neighbor who sold it to me when it was only 5 years old, as far as I know its never been changed.

            What I've been contemplating is whether this thing is really a super low hours original motor or a super nice restoration job. The paint and decals look original, there's almost no exhaust residue in the lower port, and the carb had no odor of gasoline at all. The prop is completely unmarked, the spark plugs appear brand new, and the paint on the power head is minty perfect. Even the wiring and light colored plastic looks new. I bought it for less than what the prop would sell for at the dealer.
            It even came with a super clean 3 gallon metal OMC fuel tank, and four round, red white and blue pop top cans of OMC oil. I think I'll keep the cans unopened and just run modern oil but its neat to see something so original. It even came with a factory service manual, parts list, and owner's manual.

            I've always liked these little motors, simple, light, and reliable.

            Comment


            • #7
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              Re: Evinrude 9.5hp plastic prop?

              Hey loose rivet, any chance you could share some pictures of you lovely find? It is very rare to find any motors of that vintage that are original that don't have at least some battle scars.
              Cam Milne,
              Toronto, Canada

              1950 Johnson 5 - TN-26
              1955 Elto 5 (Gale 5 based) - 5D11E
              1956 Eatons Viking 5 (Gale 5 based, incomplete) - 5D12V
              1958 Johnson 7½ - AD-12
              1967 Johnson 9½ - MQ-13
              1971 Evinrude Yachtwin 4 - 4136D
              1976 Johnson 15 - 15R76



              - all from freshwater and built in Peterborough

              "None of us is as smart as all of us"

              Comment

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