Short exhaust gas connection to the gasifier, I also used a flexible piece to prevent the pipe from bursting due to vibrations
this design still allows access to the spark plugs
Exhaust pipe from a gasifier? Where did you see that?
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Tone, true work of art. Will tomorow be the first Sunday drive?
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Kristjan, if I don’t type on the phone and get to work, I might be able to connect the gas and cooling water pipes… so I can do the first start-up on Sunday… 
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“Exhaust pipe for a (wood) gasifier . . . where you see?” Well now that you point out the engine routed exhaust; I see two Tone.
Your upper hopper steam releasing exhaust as the #1.
Regards
Steve Unruh
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Things are slowly coming together, … the water cooler and the electric pump underneath, I had to adjust the copper pipes and connections because it really fits the engine cover . There is a water drain pipe below.
small expansion tank, the lid has a small hole
finally in one piece again…
I briefly ran the engine on propane because I was curious about what it sounded like with the “muffler” in the wall of the gasifier, well, it runs pretty quietly, but the interior heats up quickly…
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Sooo close, Tone.
I’m excited to see, how much extra power and how small amount of condensation this setup will produce with all the heat recovery.
Can’t wait to wake up tomorrow - to see the results - because you don’t sleep, do you? 
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Friends, I think I owe you a short report. I don’t know how to start,… first I filled the space in the lower part with ash, then poured 20 l of charcoal into the central part and lit it,… then I poured about 100 liters of wood chips inside, for quite some time I blew air through the nozzles and released moist gases through the lid and then through the chimney on the lid,… Cold weather and a lot of humidity - tiny droplets of tar juice formed, which showered the lid of the gasifier and the tractor. I closed the chimney and tried to light the gas on the pipe behind the refrigerator, it was a bit damp but it burned. Starting the engine was difficult, because the “standard” settings did not work, well, soon the engine started working. The power is good, I can say, very good, the operation is stable, even when operating for a long time at low load, the water cooling works well - a lot of condensation is removed,… there is plenty of gas… this gasifier is a few steps ahead of the previous one, but let’s wait for longer tests in use.
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Wow Tone, you did it again!
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It looks great!!
Do you happen to have any white paint?
I am thinking this one needs a Jolly Roger on the tanks. But maybe instead of bones, make it look like branches or logs. 
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tone, a new masterpiece in functionality and also esthetics…the tractor sounds like a bell!
a pitty the distances also here in europe are large, otherwise you would have us and a lot of other visitors…
big gratulation, all best calculated…high engineering school
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After yesterday’s first start-up of the new gasifier, 75% of the remaining work begins with getting to know its operation and learning how to operate it. Yesterday it worked for about 3 hours, what can I highlight:
- small resistance through the gasifier (maybe it will increase over time)
- obvious heating of the interior with exhaust gases has a beneficial effect on long-term operation on the spot and also, when I suddenly start and need full power, it is available very quickly, it is obvious that it is very hot inside, which is a condition for gas formation. The top cover does not seal 100% and smoke can be seen coming out when I stop the tractor after driving uphill and it is idling, which means overpressure inside.
-water cooling is obviously mandatory for this type of gasifier, good cooling effect, small negative pressure inside, a lot of condensation is eliminated
-the outlet gas temperature is slightly higher than in the previous variant, which is understandable due to the influence of the exhaust gas temperature, water cooling of the jacket would be very useful here (if I had thought a little more about it earlier, I could have easily done this). - I am only worried about the joints of the exhaust pipe through the outer jacket, because there are different expansions of the inner part and the outer part, I hope not too much and the joints will hold
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You could cover those outside connections with Header Wrap to cut down on the metal expansion and contraction. Over time I believe you could get some metal fatigue from that.
https://www.google.com/search?client=firefox-b-1-d&q=header+wrap+tape&sei=JxtyaYmJGKr-ptQP8JzdkQo
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Fantastic news so far Tone. Congratulations to another super build.
As long as it’s not enough positive pressure to throw off the air-mix and stall the tractor it shouldn’t be a problem. I notice the same sympthome on the Volvo gasifier after running hard - the mix gets rich for a little while, but not enough to stall the engine.
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Thanks to everyone for the support!
Today I drove the tractor again, I was interested in how the gasifier would start up, when the fuel was distributed in height. I can say that everything went according to the standards, lighting according to the “Wayne” system through the pipe in the middle, blowing back and forth, then through the nozzles with the chimney open, then I close the chimney and soon I get gas for operation. Today the gas was like a light mist with a little moisture, the wood has dried well since yesterday and there is clearly a lot of charcoal underneath. The tractor worked for about 2 hours under different loads, practically without problems. After the drive, I let out a lot of condensation from the funnel, and there was very little water in the refrigerator. I use wood chips of different sizes and shapes as fuel, everything collapses evenly without problems, … 
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I made a larger cross-section of the air supply pipeline to the mixer so that it is now the same cross-section as the gas pipeline.
I installed a throttle valve lubrication system some time ago, which has proven to be good, so the centrifugal governor maintains the rpm quite accurately.
My curiosity got the better of me and I opened the ash cleaning cover to check the condition, well, there was a lot of charcoal underneath, which the gas flow had removed from the process, I wasn’t used to that with my previous gasifier. I decided to modify the bottom plate a bit to better hold the charcoal, and install a nozzle in the middle,…
Everything looks fine inside, plenty of charcoal of a suitable size
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Initially I had no intention of installing a central nozzle, well, I have to thank Mr. Bob for preparing the air connection, now it is easy to use and test the operation by supplying additional air directly above the restriction opening.
I adjusted the bottom plate slightly so that it will hold the charcoal, and the additional oxygen will enable gasification to the point of ash. The nozzle will extend about 5 cm above the restriction opening, but there are short distances here, I hope that its influence will also extend into the forbidden space. The cross-section for the air inlet is only 7 mm, but it is located in the area of strong negative pressure.
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Wow Tone, and you are preheating the air too, even to higher temps. Does this have moisture in the air going through the lower center nozzles holes? I like the charcoal hold back fence you have. If it works, you will just have ashes and more hydrogen gases.
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Mr. Wayne once said “if you have wood, you will travel” and I say if you have wood, you will work,…
Today 2 hours of useful work and half an hour drive to a friend, … works according to the norms,…
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a masterpiece of art and science, how always…greetings to ratzinger and fergie!
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