Converting engines, maybe to wood gas?

some useful work… :smile:

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your motor will also give a nice tractor…

and the robust front axle would be ideal for gasifier positioning, much space!!
when i was around 25 years old, i drove once the kramer 12 k, the model after this.(lended to me by a neighbour)…
exiting to start by hand crank, must be screwed in a glow cartridge, a lot of smoke , the whole street in the village with a smoke cloud…(at cold engine only)

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Yesterday I was visiting a relative, and among other things I saw this…





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Other than it was made by International Harvester out of Chicago U.S.A. I can only guess. I would guess some kind of hit or miss engine, but this seems more complicated than a Lister.

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What a wonderful engine Tone, i love it!
Low tension, “make-and-break” ignition, really old one. :star_struck:

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Did it accidentally follow you home?

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It is a Nonpareil Famous engine manufactured by interational harvester. around the early 1900s. It can be worth 1000s to 10,000s depending on model and condition. I can’t read the model number on it, but it might be the 4hp variant.

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Mr. Bob, unfortunately it is not for sale yet, but as I mentioned it is at a relative’s, maybe it will accompany me home sometime in the future. :grinning:
It has an interesting Bosch ignition system, where a mechanical lever rotates the rotor by about 60° and at the same time a spring is tensioned, which is released at the time of ignition, which causes a rapid rotation and an electric spark. The spark plug is also of a special design, I think that the revolutions are maintained by interrupting the ignition. The engine has only one mechanically controlled valve - exhaust, the intake valve acts as a check valve, it only has a gentle spring that closes it.

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Hi Tone, yes the ignition is very special, as i called it “make-and-break” when the magneto is in exactly the correct angle, the rod should hit the lever for the points, placed inside combustion chamber, cutting the circuit, this gives a really “fat” hot spark.


Low tension magneto system.

In position D is where the current is higest, here should the rod hit the points, open them.
Fast opening of the points is beneficial, many systems also has a special “trip” mechanism, that lets the points close Hard, to keep them clean for good contact.
But you probably know this already. :blush:

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In Goran’s topic we talked about engine torque, I’m attaching pictures of data from some older engines, I couldn’t find the data for my IMT 533 2.4 l engine, but there is data for an identical 2.5 l engine, so I can calculate that the IMT 533 with a 2.4 l engine has a torque of 147 Nm.
The pictures also show that gasoline engines have higher torque than diesel engines.
Let me summarize the real data once again:

  • diesel …60-70 Nm / 1 l of working volume

  • Otto engine… 80-100 Nm / 1 l of working volume

  • Otto engine on wood gas …40-50 Nm / 1 liter of working volume

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Wood gas engine:
-displacement 1liter
-torque 48 Nm
-power at 1000 rpm 5kW

These are the basic characteristics of a good wood gas engine, from this data you can easily calculate the potential power of your engine at certain revolutions per minute, you can also determine the gear ratio when driving a certain machine (chopper, generator, saw,…)

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Hi Tone, I see you use the tractordata website but which one are you using to see the cars data? I don’t recognize the layout on the pics you posted.

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Johan I use https://www.cars-data.com/ , well , I cut out certain data and images from that website and edited it in the “painter” program

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Thanks Tone. I guess I know what I will be doing tonight :smile:

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Funny, l was also in this rabbithole these days. Calculating and comparing diesels vs ottos. I aquired a new vehicle recently and the urge to get back in the woodgas buisness is strong. Thats all l can say for now

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You can not stop a good DOW or DOC from being a doer of what they love to do.

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You probably already know this engine, it is identical to the one on my Fergi. I bought it some time ago and completely rebuilt it, so it will be on reserve or I will install it on the Fergi, which I bought without the engine. The original pre-chamber covers (CR 1:16.5) are currently installed, but I will make others with a larger volume, where the CR will be 1:13, the ignition distributor will also be installed slightly differently …

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