Woodrunner tractor

Yes, i’ve seen that video. And done that too, many times, welded with only sunglasses, using a green glass bottle, used a cracked glass welding helmet that gave my nose a VERY painful sun-burn (i looked like Rudolph reindeer after a week of boozing), and, just “look away” that gives a painful burn on the SIDE of the eyeball.
Seems to never learn… once up in the night with horrible pain in the eyes, tried to find the bathroom to take a leak, and find some painkillers and a wet, cold towel, tried to feel my way, find the front door instead, ok i can take a leak in the garden, and the cold summer night air will help some.
BUT, how to find my way back inside with temporary blindness? I wonder what the guy in the car, delivering the morning paper was thinking about the zombie-sleepwalker in only underpants, trying to feel his way through the garden bushes?

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As a student of well learned flashburn SUCKS, a potatoe cut in half layed over the eyes and wrapped in a ace bandage in a night will clear up the sand grittyness and temporary blindness, potassium draws out the burn somehow grandad taught me, works a absolute treat for the “tough guy” that doesnt need a hood for those quick couple tacks.

Here in the states a harbor freight auto darkening hood can be had for sub 50$ with a coupon and worth every last penny. I have about 3 laying around and even when working in a shop welding exhaust all day i would still get 2 years out of one easily at one third the cost of the same helmet on the MAC tools truck.

Public service announcement

Protect your eyes, dont be dumb like me. I have flash burned my self probably 20 times seriosly before i learned my lesson and i am sure i will pay for it down the road. Vision is already not near as good as it were in my 20’s. Used to be able to spot a elk on a hillside 400 yards away in the brush, not anymore

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Same goes for your hearing. Don’t ask me how I know this

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Eyes and ears, wish I had been more careful in my youth. Although my eyes aren’t too bad and only need glasses for reading and close up work like welding, my ears have suffered from not wearing protection when:

Playing with loud engines
Shooting pheasants
Practicing shooting pheasants
Shooting deer
Practicing shooting deer
Practicing shooting
Grinding metal
Sawing metal with a cut off saw
Porting heads with a die grinder
Using an air hammer
Sanding with an air DA
Many other stupid things I am too old to remember

Hearing aids from Costco have helped a lot, but I now wear ear muffs most of the time in the shop.

Garry C

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I posted this before. After welding for 40 years this became my favorite https://www.accustrike.com/

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That Mig-It welding shield looks handy, close to the weld so you can just tack away.

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We visited my wifes aunt the other week, her husband showed his small carpentry shop, there! on a shelf with wood-dowels i saw it: a roll of fine metal mesh, just like the mesh i bought for my chevys filter :astonished:



He thought i needed it better and gave it to me, it came from a closed company that used to do screen-printing, what i can estimate, it’s stainless, non-magnetic, no rust, heavy and very strong, seems i got filter material for my tractor :smiley:
(It seems to work satisfactory on the Chevrolet, the pressure-drop after filter tells me a soot-cake builds up, and condensate after cooler seems clearer and clearer)

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Hey Goran. I’ve had a few of your videos pop up on youtube. Did you post them here and I missed them? I enjoyed them anyway. I wish you wouldn’t have had to demonstrate your antique matches. Anyway the gasifier you were striking them on is the one from this thread so I stuck this post here. You can run but you can’t hide at least from subscribers. I watch youtube on my giant ass TV so I can’t do likes on it, but I do enjoy your posts.

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Hi Tom, as i said to Tone in the other thread the tractor project goes slow, but things going to happen, sooner or later.
As for now i use the tractor as original, the gasifier is just extra load at the moment.
As for youtube i try to post videos here if they are woodgas related, sometimes i just forgot, and other times i think: na, no one wants to see this anyway :blush:
And yeah: about the matches, no harm done, i have enough of them saved so i can do a demonstration once in a while, pretty “showy” are’nt they?

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Makes me think that the sparklers kids use here on Independence Day would be a good prep for starting a gasifier. At least bring a little dazzle to the process. :joy:
You are a very likeable dude. Always fun to see your videos regardless of the subject.

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Goran, I don’t know if this contribution will be of any use to you, but I will still list some of my experiences. As I said before, I reduced the compression ratio on my Fergi to approx. 1:13, which is very good for running on wood gas, but I can say that at full load, minor detonations are still felt. When you have strong dry gas, even a low compression ratio will give good power on the crankshaft, I don’t think there will be much difference compared to running on gasoline, I can say that my Fergie achieves similar power on wood as on diesel fuel. But it has another advantage of low CR, ignition of the mixture is easier, high CR requires a very strong spark. It pays to work around the gas mixer so that you get a well mixed mixture into the engine, I think this gives more power than the resistance from the mixer takes away.

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Tone, you’re right, and your contributions is always of use :smiley:
Problem with my fergie is it is built for kerosene, very low cr (around 5:1) and with a very strongly preheated inlet manifold- the engine feels “dull” on gasoline even.
You are correct about the mixing of air and gas, a pressure drop over a mixer is often compensated for by a better burning mixture.

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Regarding the turbocharger, it is good to consider the principle of power at which the engine should work, because we are talking about 30 hp power here, the turbocharger must be very small in order to get the desired effect. My son Domen has a Fiat Punto 1.3 JTD, this engine develops 90 hp and has a turbine with variable geometry, it is interesting to see the pressure pipe from the turbine that compresses the air, it is only 1/2" in diameter. Probably such a turbine would work well in Fergi The smallest turbines are in Smart cars. An even better charging effect would be achieved with a compressor, which is installed in some Mercedes vehicles, and here a constant charging is guaranteed regardless of the revolutions, and you can set the desired pre-pressure with the diameter of the pulleys.

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Haha, Tone, we think alike :smiley:
I have a turbocharger im thinking about, going to post a pic soon. VW 1liters engine, double/series turbo.
My thoughts has also been into superchargers, i got a cabin pressure compressor from, i think Saab j29, military aircraft, that may work, i’ve heard about people use them to supercharge smaller cars.

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It will be interesting to see how this is all setup to run on woodgas. Looking forward to this build.

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tone and göran…tone´s and my fiat tractors with petrol engine have compression 4,2,
while the same motor in gasoline version has 5,5 compression…the difference was another motorhead ecc…
tone, you have given to your fiat woodgas from fergie, when i remember right?
what impression you have had? lazy or not?

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Here is the turbocharger i considering use, looks overly complicated, but no problem make it work, going to add a separate oil filter for the turbos, and maybe their own pump.
As im going to use a fabric filter, and use a very low boost pressure, i believe this may work.


Piping, and big “one way valve”.

Very small turbine on the “secondary” low rev turbocharger.

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Giorgio, when I tested the Fiat on wood gas I had a very good feeling, the engine ran very smoothly and was very responsive, I think it would develop decent power, here is a video.

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Goran, this turbine will probably work quite well, but a variable turbine with mechanical pressure control via a diaphragm that changes the position of the stator vanes would be a better choice, but use what you have at hand. I wouldn’t bother with an additional oil pump and filter, I would install an oil extraction from the existing installation, a fairly small amount of oil is enough to keep the sliding bearings lubricated and the turbine housing cooled, Fergie also has a fairly large amount of oil and a large massive sump where the oil it cools well, there is no need to waste time with additional things, this is my opinion.

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Tone, that are good thinking all of it, if you look at the first pic i posted, you can see there are double turbochargers, the smallest one only helps the bigger one at low rev’s, the bigger is a vgt, variable geometry.
Unnecessary complex, but i have the stuff laying around, almost new, guarantee replacement at vw, only because they could make a “disturbing noise”.
Maybe the fergie has a good enough oil pump, i can tap oil pressure easily from a plug in the oil channels. A extra inline filter im going to use though, i have the filter stuff, and those small turbochargers could be a bit sensitive, the standard oil filter maybe let some nasty stuff through.

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