Opening up the gasifier after several hundreds hours of operation - what is going on inside ))

recently i noticed about 25% power loss while charging my off grid batteries.

ruled out bad fuel,
engine problems, such as restrictions on intake and exhaust.

air flow through gasifier was LESS restricted than usual at normal operation - so i suspected
burned out restriction cone.

so here it is - inverted stainless cone all buckled, weld come apart and thick ring has fallen out in the grate. ouch!

there is nothing worth saving, so i cut it out

other than restriction, everything seem mighty fine - nozzles, side walls, grate are good as new

in my scrap piles i found a front hub in one piece with brake disc from an old T2 “bricky” VW van - seems to fit rather well

did little turning oh lathe

and fixed it to outer shell with pieces of L profile (view from bottom)

top view

some more pics ))

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“A man without a scrap pile is hardly a man at all.” When I’m dead I want that epitaph welded across the gasifier my ashes will be interred in. Nice work Andris. I don’t think I’ve seen your gasifier before. Your nozzles have held up really well. What are they made from and why did you grind the taper on the ends. Also curious about the sprocket. I’d like to see a picture of it all assembled.

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I 100% agree with TomH., AndrisL.

Showing this proof-of-usage is worth 10,000 words of speculations.
Why I respectfully disagree with some who say they do not want to picture up any of their failures only their successes.

Back in the centuries of all powered by forced air combustion it was expected that after so many hours of service work some repairs and restorations would be needed.
As much as the measure of excellence a long service life design was . . . the true jump from good-enough to true excellence is the ability to more readily do after hard use; repairs, and upgrade modifications.

In truth yours did not fail. It proved your layout and dimensions. Proved it’s usability.
You are now beefing it up for a longer service life of usability.

Ha! Ha! My guess TomH. from it’s high up location AND Andris’s referred to scrap pile; that the external gear is port cap stay-cool; installation and removal handle.

Best Regards
Steve unruh

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Andris, I’m glad Tom said he’s not seen your gasifier, or
I would have blamed my own memory alone.
Yes, we would like to know more. What it looks like assembled, dimentions, what it normally powers, fuel etc.

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thanks for replies ))

Tom
nozzles are made from 24mm hexagon stock, M20x1.5 thread, cannot remember, why i made taper on the end - probably for aesthetic reasons

sprocket is just cover for ash removal port - it was thick enough to cut thread into.
another item from scrap pile ))

Steve
yep, it is not a failure in my opinion, just replacing a consumable - let us see how long that brake rotor will hold.
engine is not tarred - everything is fine.

Jan - there is an old thread where i was asking for advice while building it.
forum members did help significantly and allowed me to avoid some beginner’s mistakes

here is the link

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Interesting thread. Tom has no excuse, because he made several posts in it :smile: Myself - I don’t know how I was able to miss it at the time.

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I have a valid excuse Jan. I’m old and can barely remember what I did yesterday. I have to keep a daily log or I would be lost in the wilderness. The mind is the second thing to go. :sob:

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Iv starting giving myself hand written to do list over each weekend, to many irons in the fire so to speak is taxing on the brain. Between rabbit (breeding, birthing, butchering) quail (incubating, brooding, selling, butchering) wood stove (collecting, cutting, splitting, stacking, burning) garbage runs recycling building things work and family I now have a calender full of notes to keep me on track. I still forget things. The details bite you once in a while. During my last reloading session of 9mm ammo I missed my powder measuring having a bad day and loaded about 300 rounds that didn’t recieve the proper powder load. Oof.

I’ll return to the original thread and re read what I forgot already. A busy brain and all that. I need a day off to just go to idle the woods in my dodge and relax.

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gasifier now is back in one piece - and it got a new blower, the previous one was pretty weak and it took a lot of time to warm the gasifier up.

it is MUCH faster with this one

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