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Two stroke compression ignition engine

Discussion in 'INTERNAL COMBUSTION ENGINES' started by ybyo, Feb 12, 2017.

  1. ybyo

    ybyo Turkey Iron Registered Member

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    Dear all,

    I started to this project literally in 2011. But that was searching, reading and gathering info phase. I came across with mini diesels or more right definition "compression ignition" engines on web, got very excited.
    Then military service, marriying etc phase 1.5 year lag :)
    Anyway, basically my engine is modified bollaero 1.8 which is a very known free design. I changed it to metric, made CAD assembly and started machining 3 years ago, 2014.

    This was my first IC engine, i have made steams before but i reached another area and found that i've read just a little about these new stuff... Too many tryings, bended pins, conrods, leakings.... I even don't have to mention about finding ETHER ! I was just to getting in depression. And more read about "lapping". I knew it but not sure about its importance. Thanks to modelenginenews.org , valic000 on youtube and more other guys, forums, postings, i have managed it stabilized at last.

    This is my little guy people ;
    www.youtube.com/watch?v=uL7K9EgrIx8

    One more compression ignition engine? Ermm i have to think about it :)
     
    Armourer, fixit, JimDawson and 9 others like this.
  2. royesses

    royesses United States H-M Supporter - Premium Content H-M Supporter-Premium

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    Very nice project.
     
  3. terrywerm

    terrywerm New Member Liaison Staff Member H-M Supporter-Premium

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    Nice engine, it runs very well.
     
  4. ybyo

    ybyo Turkey Iron Registered Member

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    Dear all;

    I added ball bearings to crankcase and made another crankshaft + dynamic balancing (not perfect but as close as i can get),
    I used oil sealed ball bearing for inner one to reduce pressure leakage in the crankcase, i'm very satisfied with results so far i did.
    I will measure revolution with a propeller next.

     
    Fitter Bill, cascao and royesses like this.
  5. larry4406

    larry4406 United States Iron Registered Member

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    Neat! sounds much better with the crank and bearing upgrade.
     
  6. ybyo

    ybyo Turkey Iron Registered Member

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    Here with the prop 9x6 @4600 rpm ;




    I wrote few notes in the description, it is basically slower then my previous video because i downgraded kerosene ratio to ~%30. I will use this 200mL mix to adjust joints to each other, dont want to take risk , it is getting hotter after :)
     
    Fitter Bill likes this.

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