normally aspirated diesel?

Discussion in 'Diesel Engines' started by SuzieWong, May 1, 2016.

  1. SuzieWong
    Joined: May 2016
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    Location: Asia

    SuzieWong New Member

    I am searching for a normally aspirated diesel engine, in the 150HP to 200HP range.
    For those who know better, please do not ask why...
    Is any factory still producing normally aspirated diesel engine with mechanical injection?
    Means no high rotating turbo, no DC power needed once it is running.
    The higher volume and the lower revs the better.

    I've seen rebuild Gardner which look suitable, but are there any new engines on the market?
  2. 7228sedan
    Joined: Nov 2009
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    Location: New Jersey USA

    7228sedan Senior Member

    How about a rebuilt 6BT Cummins. The older 12V variety were naturally aspirated & all mechanical. Very tried & true in marine applications.
  3. daiquiri
    Joined: May 2004
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    Location: Italy (Garda Lake) and Croatia (Istria)

    daiquiri Engineering and Design

    Back in this thread: it came out that there is an engine factory in Serbia which makes mechanical aspirated diesels under Perkin's license:
    They have models up to 150 HP, perhaps you can contact them and see if they have marinized versions which you need (if you need a marinized version).

  4. MikeJohns
    Joined: Aug 2004
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    Location: Australia

    MikeJohns Senior Member

    You can get new engines from the John Deere agency in Australia (Brisbane). Marinized or not. They build a marinized unit to order based on the 6068. Really good high torque heavy engines. I can email or PM you contact details if you want.
  5. Lepke
    Joined: Sep 2015
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    Location: Oregon to Alaska

    Lepke Junior Member

    There should be many Detroit Diesels war surplus in Vietnam. All mechanical, parts available worldwide, rebuildable forever.
    Joined: Oct 2002
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    FAST FRED Senior Member

    You bet a 6-71 in good condition will outlive most boaters.

    The ability to set up the engine , exhaust on either side allows you the most latitude in setting up the engine room.

    Chose injectors that will allow at least 60% of rated HP at cruise for best fuel burn

    Set up right you will see 16HP per gallon , modern turboed electronic engines claim more , but seldom perform that well, and are basically NOT BULLETPROOF , and notb easy to repair.
  7. gon2sea
    Joined: May 2016
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    Location: United States

    gon2sea New Member

    The 6by is only 130 hp without turbo, the ve44 injection pump does require electricity to turn fuel solenoid on and stay on, the p7100 pump has a fuel shut off lever, if maximizing a dodge cummins 6bt, bowman makes a nice exhaust manifold, there is an adapter plate to adapt dodge bellhousing to a sae 3. Or cummins sae 3 housings are readily available as well..
  8. serow
    Joined: Mar 2016
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    Location: UK

    serow Junior Member

  9. whitepointer23

    whitepointer23 Previous Member

    Get a gardner and with good fuel filtration . You will never have a problem and the fuel economy is terrific. . You might have to rebuild it again at 70,or 80.000 hrs but they usually outlast the boat even in commercial service. There are still a lot of gardner specialists around and parts are still available.

  10. whitepointer23

    whitepointer23 Previous Member

    What size is the boat .
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