Early Stuart I.C. engine

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Early Stuart I.C. engine

Home Forums I/C Engines Early Stuart I.C. engine

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  • #620141
    Roderick Jenkins
    Participant
      @roderickjenkins93242

      I came across this in the tea room of the Sammy MIller motorcycle museum:

      stuart 4.jpg

      Although described as an apprentice piece (they obviously want it to be a motorcycle engine), I noticed that "STUART" was stamped on a couple of the items.

      stuart 3.jpg

      stuart 1.jpg

      stuart 2.jpg

      It looks like one half of this air cooled AE twin (image from MEN)

      stuart 5.jpg

      It seems they were produced as singles or twins, water or air cooled.

      Rod

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      #2641
      Roderick Jenkins
      Participant
        @roderickjenkins93242
        #620150
        JasonB
        Moderator
          @jasonb

          The AE30 and AE 60 were the single and twin variants of that one but the engine does not look like the AE30. it's quite different to that

          What parts had Stuart on them? The one you show is the cover to the carb float chamber so could just be a bought in carb.

          This is the other catalogue page and some photos of an aircooled AE30

          ae 3.jpg

          ae30 1.jpg

          ae30 2.jpg

          ae30 3.jpg

          Edited By JasonB on 08/11/2022 06:58:23

          #620177
          Roderick Jenkins
          Participant
            @roderickjenkins93242

            On the Miller engine, the plate on the side of the crankcase with the oiler attached is also stamped "STUART". It looks like the AE evolved. My copy of the TEE reproduction of Caunter's " Model Petrol Engines" shows a twin AE with top end similar to the single pics that Jason has posted

            stuart 6.jpg

            However, the " On the Wire" website has a picture of an earlier air cooled AE twin which shows an automatic inlet valve and the same cylinder head and cooling fans as the MIller example

            stuart 6 c4s-stuart-ae-1-1910.jpg

            The image data suggests this is from 1910. The picture below seems to be an early water cooled AE single with the same cylinder head and auto inlet valve

            stuart 8 c4s-stuart-ae-2.jpg

            The next question is: Did Stuart actually make any or were they all supplied as kits? I guess early issues of ME may supply some adverts but my collection only goes back to the mid 30s sad

            Rod

            #620208
            Hopper
            Participant
              @hopper

              Quite possibly apprentice built but seems unlikely as an exam piece. Far too much work in it for a one-day exam etc. More likely as a combined term project etc.

              #620211
              Hacksaw
              Participant
                @hacksaw

                Is that 4 cylinder 50cc engine still on display at the museum ?

                #620247
                JasonB
                Moderator
                  @jasonb

                  I think it may be the 43cc engine of 1910 vuntage shown at the bottom of this page which apart from being a water cooled version looks almost identical

                  I wonder if the earlier engines were of a larger capacity which was reduced at some time to get them within the 30cc class limit but I'm not sure when that came into use.

                   

                  Edited By JasonB on 08/11/2022 16:50:11

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