1946 Scott Atwater info pls

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  • September 14, 2016 at 8:39 pm #5255
    square
    Participant

      Hi everyone,
      I am new here and new to vintage outboards.
      I have what was sold to me as a Scott Atwater 7.5hp.
      Cylinder case number is 463, no other I’d tags and the cylinder mite have been swapped in it looks newer no rust of scale..

      Bad stuff first
      – missing choke (I can fad this with some good photos)
      – one half of the swiveled/lift is cracked right through
      – the spark end of the cylinder looks wired (maybe installed upside down)
      Lower engine covers missing and pull
      – bottom end seals shot

      The good it’s old! Turns free :mrgreen:

      So what I’m looking for is an engine schematic, good info on points rebuild (I have found a site link coming)

      Thanks in advance!!

      Photos attached
      top pull, missing stuff-not sure what
      Choke or lack of
      Side photo (spark plug points down??)
      Case number

      Oh lower engine covers are missing, mite try to form a pair

      Attachments:

      September 14, 2016 at 8:53 pm #44033
      frankr
      Participant

        US MEMBER PAY BY CHECK

        If it really is a model 463, that would be a 3.5hp single cylinder Firestone, made by Scott-Atwater. But it could also be a part number, not a model number.

        I see it is a single cylinder with 4-bolt cylinder head. That would be a 3.5hp

        September 14, 2016 at 9:15 pm #44036
        square
        Participant

          Thanks Frank, it’s going on a seaflea so not a dream crusher!

          September 14, 2016 at 10:34 pm #44039
          frankr
          Participant

            US MEMBER PAY BY CHECK

            PM me your e-mail address for a parts list.

            September 15, 2016 at 1:30 am #44050
            retiredoz
            Participant

              Your carb should look like this :
              https://s16.postimg.org/fctuctt45/IMG_1250.jpg
              https://s13.postimg.org/ynnqhkglz/IMG_1251.jpg

              Looks like, in addition to the choke mechanism being gone, the supporting bracket for and the low-speed adjustment needle are gone too.

              September 15, 2016 at 7:04 pm #44096
              jim-moffatt
              Participant

                US Member

                The 4 bolt cylinder head is installed upside down.

                September 15, 2016 at 7:16 pm #44097
                square
                Participant

                  Thanks all, I have the head in the right way, with the head off it was very obvious it was in the wrong way due to the piston dish/deflection
                  I bought a rebuild manual online and should have time in November to do a full tar down.

                  September 16, 2016 at 12:08 am #44116
                  square
                  Participant

                    @retiredoz the unit I have is a turn style choke

                    See pic below

                    September 16, 2016 at 1:24 am #44125
                    retiredoz
                    Participant

                      Mine’s just a straight push to choke. Spring-loaded valve. Apparently there were variations..

                      September 16, 2016 at 4:52 am #44133
                      retiredoz
                      Participant

                        That drawing is of an AJ16A, not the AJ17A in your picture. I don’t think it matters much one way or the other. The manual says the AJ16A was used on the ’46 and ’47 Scott singles, but the Tillotson ‘where-used’ catalog says those motors take AJ17A. By now I don’t remember if the one I have came off a Scott or a Firestone..

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