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Gasoline to Diesel conversion kits?

Discussion in 'Home Power and Microgeneration' started by GeekBoy, Sep 27, 2005.

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  1. GeekBoy

    GeekBoy Guest

    With all the small gasoline engines out there available almost free or lost
    cost anyone know of a kit or way to convert these over to diesel?

    I have been searching the net without luck. Most conversions are LP, CNG, or
    ethanol.

    Thanks!
     
  2. Steve Spence

    Steve Spence Guest

    Not feasible.
     
  3. SQLit

    SQLit Guest

    Your kidding ............ right?

    I suggest that you do some library time.

    There are SERIOUS differences between gasoline and diesel engines.
     
  4. GeekBoy

    GeekBoy Guest

    Oh yeah suuuuree...that is why for the longest time the Chevy diesel v8
    engine was just a gasonline engine that had been converted to use diesel.
     
  5. GeekBoy

    GeekBoy Guest

    Well thanks for the input.
     
  6. Guest


    Much easier to do like VW and make a gas engine out of a deisel lump
    (like the old Rabbit/Golf)
     
  7. Steve Spence

    Steve Spence Guest

    factory converted ......
     
  8. Robert Bates

    Robert Bates Guest

    It is possible to run a gas engine on kerosene or diesel but it is still an
    spark ignition, not compression ignition. The engine must be warmed up on
    gas and then switched to the other fuel. Briggs and Stratton had a factory
    engine around 10 hp many years ago with a dual chamber fuel tank. Many of
    the gas tractors from the 30's to the 50's also could burn alternate fuels.
     
  9. You do not want to repeat the GM lemon diesel mistake.
    If you are talking an old farm tractor with bearings to handle diesel torque
    and compression ....yes.
    But most other gas engine conversions are doomed to failure.
     
  10. Did you notice the lack of service life on that Chevy diesel compared to
    almost anything diesel?
     
  11. To add insult to injury....they owned Cummins and Detroit.And still made
    mistakes,diesel engine designers
    can only shake thier head at.Without consulting either of them.
    They were so out of touch with diesel design.
    That did they use an engine ,that lacked of bearing area and lubrication.But
    they also dropped to a smaller transmission.
    On an engine that needed a min. of a Turbo400 heavy duty.....they install a
    Turbo 200.
    So not only, were you seeing short life engines.......but overloaded
    transmissions almost leaping out of the car or truck.
    As thier torque convertor and cluches fried.
     
  12. GeekBoy

    GeekBoy Guest

    Lets not forget the famous of all..the military Duce and a Half. Its an
    inline 6 that can run on common combustible fuel. Throw whatever is
    available into the fuel tank and go.
     
  13. GeekBoy

    GeekBoy Guest

    Well I was thinking an old Briggs and Stratton mover and turninng into
    diesel generator.
     
  14. GeekBoy

    GeekBoy Guest

    True but was hoping someone made a conversion kit..new head and an injector
    to replace the carb.
     
  15. Steve Spence

    Steve Spence Guest

    It won't hold together. Diesels are 20:1 compression, not 8:1 like a
    gas. There's not enough beef.
     
  16. Lots of misinformation in this thread.

    To answer Geekboy's original question: no Diesel conversion kits that
    I know of, and for most of the reasons other posters have mentioned.
    Even if the the bottom end of your existing engine could stand the
    guff, and in the case of Briggs and Stratton, I'd suggest not, you
    need a tougher piston, a totally different cylinder head, different
    camshaft, not to mention an injection pump.

    Kind of like making a cow into racehorse. I mean they've both got four
    feet.....

    As far as I know, the Diesel VW was a conversion from the gasoline
    motor, which was originally an Audi design. Biggest weakness is the
    belt-driven camshaft. It's an interference engine, big time.

    The 5.7 liter Oldsmobile-derived GM Diesel was indeed put in cars,
    Oldsmobiles and Cadillacs among them. I remember driving an Olds
    Diesel that friend brought to me for electrical work. Engine ran just
    fine; I think it was a '77 model.

    People like to deride the 5.7 GM Diesel, and to a lesser extent the
    6.2 which succeeded it. I think the biggest strike it had against it
    was the fact that GM had begun selling Diesel vehicles to a car-buying
    public that was for the most part really ill-informed as to the need
    of developing new driving habits such as, horror of horrors, actually
    letting the engine warm up before driving off. And maybe changing the
    oil regularly, regardless.

    I have been driving a Suburban with a 6.2 liter Diesel for five years
    now, and it has never missed a beat, and I've probably put over
    300,000 km on an engine that already was far from new. I replaced the
    water pump this Spring, as a preventive maintenance measure, and
    changed the front crankshaft seal at the same time. That is as deep as
    I've had to go into that engine.

    I bought another, 3/4 ton, Suburban 3 years ago, with a broken 6.2
    engine; the crankshaft broke in half, I think because the harmonic
    balancer was not adequately tightened. Basically destoyed the poor
    engine, though. I pulled a rust-seized 6.2 out of a parts truck, had a
    machine shop re-ring and re-bearing the bottom end, and assembled the
    remainder of the engine myself. It's on its first extended road trip
    right now. Runs like a pup, but it developed a coolant leak from one
    of the two frost-plug type block heaters I installed. And the rebuilt
    alternator up and died. Neither problem shut me down, though, and both
    are readily and inexpensively fixed.

    As far as I'm concerned, the 6.2 engine in a Suburban (for my needs)
    is very good value for the money. It has adequate, if unspectacular
    power, is frugal with fuel, and it's simple enough that I can do my
    own maintenance, all for a capital outlay of about a tenth what a
    Dodge with the Cummins engine or a Ford Powerstroke would cost me.

    Gordon Richmond
     
  17. GeekBoy

    GeekBoy Guest

    Then what about the multi-fuel military duce and a half? It can run on
    Gasoline or diesel.
     
  18. GeekBoy

    GeekBoy Guest

    Well thank you for the class on diesel engine structures and operations.
    It was quite informative

    Thanks to everyone else who posted information also!
     
  19. Steve Spence

    Steve Spence Guest

    It's designed to do so. It's built like a diesel, with spark plugs. It's
    not necessarily optimized for either.
     
  20. Dave Hinz

    Dave Hinz Guest

    You mean the engine that set back the reputation of diesel engines in
    passenger cars in the US for decades? _that_ clusterfuck of an engine?
     
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