Sorry Tom, Al = Aluminum
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Nope! You donât want a vacuum on the hopper. Imagine trying to get water out of a hose by sucking on both ends at the same time.
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Hi Kristijan, The AL lid was in May of 2015. Still looking good, and on itâs second wood hopper having outlasted the steel barrel.
http://forum.driveonwood.com/t/carls-gasifier/371/1104?u=carl
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Made a short video showing the amount of offgas l have when l shut the engine off. Not much less when it idles.
And that is not eaven pushing the gasifier to extremes!
Ps the flame was lit at the ait intake of the engine, at the automixer valve.
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JO did the YouTube play for you?? I canât watch it. It appears that the word âplaneâ is spelled âplameâ Either way it wonât come up. TomC
Wonât play for me either.
I finally got it. Had to type in âYouTube.com offgasing plane at nightâ
Now-- what is that. The gas is just belching out in spurts after shut down?? Could that be air coming in the nozzles and igniting gases above the nozzles then going out until more air comes in. The burning gases would force the gases below the restriction to be pushed out to the air intake. ??? That is my WAG ( wild ass guess) TomC
The new thingy doesnât work either. TomC
Try this ;
Help help. I canât make that a URL ( Geese I hate being computer handicapped)
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No Tom, the pulsating is of my doeing. Opening and closeing the twin throtle to alow gas comeing out and not alowing it to burn anything. I just wanted to show how much offgas the engine has to deal with.
Sorry dont know how to post a link by smartphoneâŚ
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I see them both just fine???
Kristijan,
I suspect your hopper beeing so hot you are gasifing the whole hopper content.
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Exactly! It gives me good power but at a high price! I have to find a optimal way to take the good characteristics of this and take out the bad ones. Thanks to you guys l have some ideas now.
Edit; thanks Chris 
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Fixed some video links in this thread. Just a reminder, put the link on itâs own line with no leading spaces or words. Like this:
https://www.youtube.com/watch?v=KaZJj58U0GA
And it will make this:
@KristijanL has been posting links to Youtube search results, if you go to the video itself and click on âshareâ you should get a direct link to the video.
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Some update on the auromixer topic. Things l noticed that have chanded:
The heating up the gasifier via engine sucking procedure is a bit longer now since l cant close the air mixing valve manualy. This means l cant go wot downhill becouse l wuld fly of the road when the gas starts being combustable. But not a big problem.
The max power is about the same, wich indicates to me the automixer does its job well.
Hibriding is a topic l wuld like to touch becouse l am a bit comfused. When l drive with a well warmed gasifier mekeing good gas, and hit the 25% petrol swich, the power increases notibly. Has anyone got a idea how is that possible? A sound of reason wuld say there is an airleak somewhere but l tested the asembly and l wuld say its 99% leakproof now. So has anyone got a idea what is happening? My thods are petrol is stealing oxigen for woodgas/air mix.
Dont get me wrong, l like this, l am just curious whats behind this.
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Hello Kristijan.
It seems on my trucks if the fuel / air ratio is in the correct range running on wood gas and I turn on the gasoline switch ( fuel pump ) it has little effect on the motor. The computer will not let more gasoline to the motor because of the already correct fuel/ air ratio. If I lean the wood gas mixture by opening my air mixing valve the computer will allow some gasoline to flow to correct the mixture and I will see more power . If I lean the mixture even more the truck will drink even more gasoline and more power .
In a crusing mode 60-70 mph I can tell very little difference if the gasoline is off or on .
I can control the draft applied to the gasifier and the computer will control the amount gasoline and keep it in the correct fuel/air ratio range .
Here is a short video experimenting hybrid .
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Thanks for the video mr. Keith,
Does the engine shut off the injectors completely when the mix is rich? This never happens to me. If l drive rich and hit the petrol swich the engine stalls. This allso means no matter what l do l still have some petrol sucked in, eaven with fuel pump off. Exspecialy with low throtle, where the intake manifold vaccuum is very high (city driveing)
I have to adjust the rugh air inlet for hybriding, the rest is up to the computer and it does well, exept ist unable to completely shut off the injectors.
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Kristijan, I thought you unplug some of the inputs on the computer on your car when putting the new throttle body on. This might be why your injectors are not turning off, the computer might not know to turn them off with the right data. You might need to plug them back in.
Bob
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Kristijan,
I see only 3 possible reasons:
- Lean woodgas/air mixture. (Air leak or other reason)
- Lambda is not working. (The amount of fuel added is dictated only by your MAP-sensor)
- Computer allows lambda signal to do only fine tuning.
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Bob, the same was happening with the original throttle body.
JO, all of these are possible. I think the no1 is most beliveable. But like l sayd, the gasifier&friends seem to seal rather well, there must be something else.
Edit; there are allso quite some connections to the intake manifold. Culd it be some of them is leaking air in? The valve cover vacuum hose is the most suspecious. Will take a look at this tomorow.
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Hello Kristijaan.
I donât think the computer will cut the gasoline fully off. I think it will cut it down to about 10% ( compared to running fully on gasoline ) No real basis for the 10% , just a WAG from watching the vacuum gauges and feeling the power or the lack there of .
When these trucks are run hybrid with the minimum amount of gasoline it works best at a constant cruising speed and very slow movement of the throttle. Any quick action of the throttle , decelerating or accelerating while running on the minimum gasoline seems to throw the fuel/air ratio out of balance . .
When hybirding with a high % of gasoline quick movement of the throttle doesnât seem to matter . ( Pulling a hill with a loaded trailer or entering fast traffic with my work truck )
When I kill the fuel pump no petrol is pulled in the motor .
Edit . I found a video of my 8L truck on the big road hybird driving
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