Robinson Hot Aire engine running

Discussion in 'Engines From Castings' started by Tom Jamboretz, Feb 21, 2018.

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  1. Feb 21, 2018 #1

    Tom Jamboretz

    Tom Jamboretz

    Tom Jamboretz

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    I have just finished making a Robinson hot aire engine from castings I bought from Polly Model Engineering in the UK. It was touch an go trying to get it running. Mostly from air leaks I could not find easily. It runs very nice now. Attached is a recent photo. The thermo siphon tank is 4" x 4" . It is running on propane made form a torch. TJ

    DSCN9772.jpg
     
    Cogsy, pjpickard and gld like this.
  2. Feb 22, 2018 #2

    Longboy

    Longboy

    Longboy

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    I find that pressurizing the cylinders through the transfer port between hot and cold sides with a blow off nozzle from a compressor set at low psi reveals the internal leakage area.
     
  3. Feb 22, 2018 #3

    deverett

    deverett

    deverett

    deverett

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    Good job, Tom. Now to get back to mine!

    Dave
    The Emerald Isle
     
  4. Feb 22, 2018 #4

    Hopper

    Hopper

    Hopper

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    Good job indeed. You've done well - they are notoriously "testing" to get running right.
     
  5. Feb 22, 2018 #5

    Tom Jamboretz

    Tom Jamboretz

    Tom Jamboretz

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    Good idea about pressurizing to find leaks. I'll try that when it stops performing. TJ
     

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