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24cc DIESEL ENGINE FROM SOLID

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24cc DIESEL ENGINE FROM SOLID

Home › Forums › I/C Engines › 24cc DIESEL ENGINE FROM SOLID

Viewing 11 posts - 1 through 11 (of 11 total)
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  • 24 April 2024 at 00:17 #727176
    dean clarke 2
    Participant
      @deanclarke2

      Here’s the start point for this project, a lump of 6061 T6 ally, 4″square by 5″ long.

      big boy pep 23 case start

      Next step is to machine the rear face to establish a fixed point datum and machine the inside of the case from the rear to give me a finished case internal and the ability to hold the case for the next machining operations. This also makes sure that everything done from here on in is true and square to the crankshaft centerline.

      big boy pep 23 case first op finished

      Next step is to manufacture a purpose made mandril to mount the case block on so I can then machine the front portion of the case and the front bearing housing. Photo below shows progress to date.

      big boy pep 23 2nd op done

      big boy pep 23 milling op 1

      Now it’s off to the milling machine to start the profiling operations.

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      24 April 2024 at 06:58 #727181
      Diogenes
      Participant
        @diogenes

        This looks great fun.

        ..rather your fingers than mine..😀

        24 April 2024 at 12:09 #727229
        bernard towers
        Participant
          @bernardtowers37738

          Just what I was thinking!!!

          24 April 2024 at 17:03 #727278
          Roger B
          Participant
            @rogerb61624

            A carburated ‘model aircraft’ style diesel or with fuel injection ?

            25 April 2024 at 03:00 #727347
            dean clarke 2
            Participant
              @deanclarke2

              This project is a “standard” model aeroplane control line engine. Yes, the plan is to also build and fly an enlarged version of the aircraft ,that the original engine flew,  and fly it control line. Let’s see how we get on.

              Cheers

              Dean

              25 April 2024 at 06:59 #727366
              JasonB
              Moderator
                @jasonb

                Looks good so far, hope you can hang onto the larger version!

                25 April 2024 at 09:23 #727485
                bernard towers
                Participant
                  @bernardtowers37738

                  I would think you would need a centre post or an assistant to hang on to when you fly that. Lokking forward to it!

                  25 April 2024 at 22:08 #727582
                  Roy Vaughn
                  Participant
                    @royvaughn26060

                    Looks like it could be a rear induction team race motor.  Or maybe a giant Comp Special for a ten foot Kandoo?

                    26 April 2024 at 10:00 #727624
                    noel shelley
                    Participant
                      @noelshelley55608

                      When you come to the compression ratio you could drop it from the original as there will be less heat loss to the cylinder walls and chamber. This in turn will reduce the load on the crank and other components. Starting could be interesting. Good Luck Noel.

                      18 May 2024 at 02:41 #731241
                      dean clarke 2
                      Participant
                        @deanclarke2

                        Hi Noel, the engine is variable compression. should be a doddle to handle.

                        Dean

                        18 May 2024 at 02:45 #731243
                        dean clarke 2
                        Participant
                          @deanclarke2

                          Here’s a couple of pics of the original sized replica I’ve already built. These also were machined from solid, no castings.

                          pep 23 1

                           

                          pep 23 2

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