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L H Spareys 0.63 Aero Diesel engine

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L H Spareys 0.63 Aero Diesel engine

Home › Forums › Work In Progress and completed items › L H Spareys 0.63 Aero Diesel engine

Viewing 8 posts - 1 through 8 (of 8 total)
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  • 30 October 2019 at 15:45 #31274
    KEITH BEAUMONT
    Participant
      @keithbeaumont45476
      30 October 2019 at 15:45 #435267
      KEITH BEAUMONT
      Participant
        @keithbeaumont45476

        dsc03865.jpgdsc03862.jpgHave just completed and run this engine. Casting and drawings from Hemingway Kits. It started easily ,once I had the settings correct and has had four runs of three minutes each, so far at 5600 RPM with an 8×6 inch nylon prop. I have differed from original design with the cooling fins and made a collet type prop driver. The original had a steel driver locating on an 0.020"step in the crankshaft. Crankcase has been bead blasted plus red anodising for the other external aluminium parts . Working this small has been quite interesting.

        Keithdsc03852.jpg

        30 October 2019 at 15:48 #435268
        Neil Wyatt
        Moderator
          @neilwyatt

          Lovely. Perhaps I'll revisit the one I started about 16 years ago…

          Neil

          30 October 2019 at 16:10 #435270
          ega
          Participant
            @ega

            I see that Hemingway Kits have "L W Sparey"; L H is, of course, the author of the excellent "The Amateur's Lathe". Were there two and, if so, were they related?

            30 October 2019 at 16:47 #435280
            KEITH BEAUMONT
            Participant
              @keithbeaumont45476

              Thanks Neil. That sounds like a good idea while we can still buy fuel.

              ega, they are one and the same. My Hemingway catalogue quotes LH Sparey.

              Keith

              30 October 2019 at 16:53 #435284
              ega
              Participant
                @ega
                Posted by KEITH BEAUMONT on 30/10/2019 16:47:41:

                Thanks Neil. That sounds like a good idea while we can still buy fuel.

                ega, they are one and the same. My Hemingway catalogue quotes LH Sparey.

                Keith

                Thanks. I was looking at the interesting website entry.

                30 October 2019 at 17:09 #435288
                Emgee
                Participant
                  @emgee

                  Hi Keith

                  Nice looking work, the anodising certainly brightens the engine up.

                  Is the piston the wrong way around in the picture, if not there's a lot above the pin.
                  Did you leave the back of the crankcase out, I see a retaining ring.

                  Emgee

                  30 October 2019 at 17:14 #435292
                  KEITH BEAUMONT
                  Participant
                    @keithbeaumont45476

                    Hi Emgee,

                    The piston is the correct way up. This is typical Sparey.

                    The matt surface of the backplate makes it look like a ring in the photo.

                    Keith

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