# Small Engines **URL:** http://forum.driveonwood.com/c/small-engines/11.md [Latest](http://forum.driveonwood.com/latest.md) · [Categories](http://forum.driveonwood.com/categories.md) · [Tags](http://forum.driveonwood.com/tags.md) --- ## [About the Small Engines category](http://forum.driveonwood.com/t/about-the-small-engines-category/34)
**Author:** [@Chris](http://forum.driveonwood.com/u/Chris)\ **Replies:** 0\ **Last updated:** [February 17, 2015, 10:28pm UTC](http://forum.driveonwood.com/t/about-the-small-engines-category/34 "2015-02-17T22:28:34Z")
Generators, lawnmowers, anything under 1000 cc should qualify as “small”. These need special attention when running on woodgas, but these gasifiers do an excellent job of it. --- ## [Charcoal from twigs...simple, quick and effective without smoke](http://forum.driveonwood.com/t/charcoal-from-twigs-simple-quick-and-effective-without-smoke/7199)
**Author:** [@giorgio](http://forum.driveonwood.com/u/giorgio)\ **Replies:** 116\ **Last updated:** [September 22, 2026, 12:56pm UTC](http://forum.driveonwood.com/t/charcoal-from-twigs-simple-quick-and-effective-without-smoke/7199 "2026-09-22T12:56:41Z")
inspired from chuck whitlock´s flame cap coal making we tried this system in bath tubs …and it works really very well, --- ## [gasiFIAT crawler](http://forum.driveonwood.com/t/gasifiat-crawler/8302)
**Author:** [@giorgio](http://forum.driveonwood.com/u/giorgio)\ **Replies:** 104\ **Last updated:** [September 21, 2026, 4:42pm UTC](http://forum.driveonwood.com/t/gasifiat-crawler/8302 "2026-09-21T16:42:44Z")
the crawler from 1952 begins a new life now, with chargas…hmm very delicious compared to old kerosene…the older story of restoring is to find in historic woodgas tractor topic, but in reallity it is a historic tractor… --- ## [Red bear, long grass mower on charcoal gas](http://forum.driveonwood.com/t/red-bear-long-grass-mower-on-charcoal-gas/6066)
**Author:** [@giorgio](http://forum.driveonwood.com/u/giorgio)\ **Replies:** 279\ **Last updated:** [September 13, 2026, 3:53pm UTC](http://forum.driveonwood.com/t/red-bear-long-grass-mower-on-charcoal-gas/6066 "2026-09-13T15:53:19Z")
--- ## [Bruce's Baron Downdrafter](http://forum.driveonwood.com/t/bruces-baron-downdrafter/7568)
**Author:** [@bsoutherland](http://forum.driveonwood.com/u/bsoutherland)\ **Replies:** 150\ **Last updated:** [September 12, 2026, 5:41pm UTC](http://forum.driveonwood.com/t/bruces-baron-downdrafter/7568 "2026-09-12T17:41:51Z")
While enjoying Brian’s First Down Draft Charcoal Gasifier topic, I spotted a 50 year old Simplicity Baron in roadside trash. This project was born. --- ## [Nozzles for Charcoal gasifiers, part 2](http://forum.driveonwood.com/t/nozzles-for-charcoal-gasifiers-part-2/3639)
**Author:** [@k\_vanlooken](http://forum.driveonwood.com/u/k_vanlooken)\ **Replies:** 740\ **Last updated:** [September 5, 2026, 12:44pm UTC](http://forum.driveonwood.com/t/nozzles-for-charcoal-gasifiers-part-2/3639 "2026-09-05T12:44:03Z")
Yup, trying again… This time, let us try to stay on topic only, links to the old thread/nozzles only Kicking of with a new idea: using fire bricks to shape them into a nozzle ( using this idea for the large boiler gasi… --- ## [Downdraft charcoal gasifier building pictures](http://forum.driveonwood.com/t/downdraft-charcoal-gasifier-building-pictures/8657)
**Author:** [@giorgio](http://forum.driveonwood.com/u/giorgio)\ **Replies:** 20\ **Last updated:** [September 3, 2026, 7:26pm UTC](http://forum.driveonwood.com/t/downdraft-charcoal-gasifier-building-pictures/8657 "2026-09-03T19:26:19Z")
hearth with inner cleaning opening and fixed grate… the inner part of the hearth is double walled as insulation --- ## [Upgrading my charcoal retort](http://forum.driveonwood.com/t/upgrading-my-charcoal-retort/8661)
**Author:** [@Marty](http://forum.driveonwood.com/u/Marty)\ **Replies:** 5\ **Last updated:** [August 25, 2026, 11:58pm UTC](http://forum.driveonwood.com/t/upgrading-my-charcoal-retort/8661 "2026-08-25T23:58:38Z")
I’ve been thinking about redesigning my vertical oriented retort into a horizontal one. The retort works fine, but it is cumbersome to assemble. The outer barrels have to be stacked around the inner chamber holdi… --- ## [Charcoal powered mower for harvesting grain](http://forum.driveonwood.com/t/charcoal-powered-mower-for-harvesting-grain/6069)
**Author:** [@giorgio](http://forum.driveonwood.com/u/giorgio)\ **Replies:** 75\ **Last updated:** [August 23, 2026, 6:28pm UTC](http://forum.driveonwood.com/t/charcoal-powered-mower-for-harvesting-grain/6069 "2026-08-23T18:28:18Z")
--- ## [Stone crusher on chargas, future project](http://forum.driveonwood.com/t/stone-crusher-on-chargas-future-project/8640)
**Author:** [@giorgio](http://forum.driveonwood.com/u/giorgio)\ **Replies:** 7\ **Last updated:** [August 3, 2026, 4:58am UTC](http://forum.driveonwood.com/t/stone-crusher-on-chargas-future-project/8640 "2026-08-03T04:58:44Z")
--- ## [Beginner's Simple-Fire](http://forum.driveonwood.com/t/beginners-simple-fire/8636)
**Author:** [@carbo](http://forum.driveonwood.com/u/carbo)\ **Replies:** 4\ **Last updated:** [July 18, 2026, 9:45pm UTC](http://forum.driveonwood.com/t/beginners-simple-fire/8636 "2026-07-18T21:45:22Z")
Hi all, I was hoping to ask for your help. I’m making my first try at building a gasifier, starting from the Gary Gilmore Simple-Fire plans. I believe that more than one person on this forum has warned against the tende… --- ## [Thrive Off Grid](http://forum.driveonwood.com/t/thrive-off-grid/2765)
**Author:** [@Matt](http://forum.driveonwood.com/u/Matt)\ **Replies:** 2279\ **Last updated:** [July 15, 2026, 11:10pm UTC](http://forum.driveonwood.com/t/thrive-off-grid/2765 "2026-07-15T23:10:25Z")
Well Im closing a chapter and creating a new chapter in my companies development. We have a lot good things coming for next year along with fresh cutting edge development. So I decided to open a new topic here under our … --- ## [I would appreciate some advice on why my charcoal gasifier is not working](http://forum.driveonwood.com/t/i-would-appreciate-some-advice-on-why-my-charcoal-gasifier-is-not-working/8624)
**Author:** [@Lucasford](http://forum.driveonwood.com/u/Lucasford)\ **Replies:** 12\ **Last updated:** [June 22, 2026, 10:01pm UTC](http://forum.driveonwood.com/t/i-would-appreciate-some-advice-on-why-my-charcoal-gasifier-is-not-working/8624 "2026-06-22T22:01:47Z")
Hi folks, I’m new to the platform, I built a cross draft charcoal gasifier out of a standard sized bbq bottle, it has an air intake with a tap, and a 35 millimetre gas outlet on the opposite side. Both are welded 15 ml … --- ## [New downdraft, charcoal motorcycle build- need insight!](http://forum.driveonwood.com/t/new-downdraft-charcoal-motorcycle-build-need-insight/8628)
**Author:** [@Stumpjumper17](http://forum.driveonwood.com/u/Stumpjumper17)\ **Replies:** 32\ **Last updated:** [June 21, 2026, 11:20pm UTC](http://forum.driveonwood.com/t/new-downdraft-charcoal-motorcycle-build-need-insight/8628 "2026-06-21T23:20:03Z")
In late 2024, following the high obtained by building WK gasifier, I became obsessed with the idea of gasifying an older, somewhat large displacement motorcycle. What I ended up with wasn’t one of the original bikes I w… --- ## [I am looking for a technical support](http://forum.driveonwood.com/t/i-am-looking-for-a-technical-support/8612)
**Author:** [@rvn](http://forum.driveonwood.com/u/rvn)\ **Replies:** 15\ **Last updated:** [June 12, 2026, 11:11am UTC](http://forum.driveonwood.com/t/i-am-looking-for-a-technical-support/8612 "2026-06-12T11:11:41Z")
We want to convert a 1939 Chevrolet car to run using charcoal as fuel. This is being done to educate future generation of India on how during World war II crisis cars where run in India. Can any one help me to develop th… --- ## [Using Charcoal SAFELY](http://forum.driveonwood.com/t/using-charcoal-safely/2715)
**Author:** [@SteveUnruh](http://forum.driveonwood.com/u/SteveUnruh)\ **Replies:** 42\ **Last updated:** [June 11, 2026, 6:36pm UTC](http://forum.driveonwood.com/t/using-charcoal-safely/2715 "2026-06-11T18:36:14Z")
High time for one of you user/advocates to post up the killed people learned 1940’s Sweedish Government Gasifier systems regulations. Nothern Hemisphere cold weather is creeping in. That means closing the Shop doors. … --- ## [Drawings of charcoal gasifiers for vehicles](http://forum.driveonwood.com/t/drawings-of-charcoal-gasifiers-for-vehicles/3892)
**Author:** [@ramosedmundo](http://forum.driveonwood.com/u/ramosedmundo)\ **Replies:** 83\ **Last updated:** [June 4, 2026, 3:47pm UTC](http://forum.driveonwood.com/t/drawings-of-charcoal-gasifiers-for-vehicles/3892 "2026-06-04T15:47:15Z")
Hi everybody: It is said that one drawing worth more than thousand words, plus is can be read in almost every languaje. So here I am posting a colection of the drawings that I have placed on each topic. Most of this dra… --- ## [YouTube Small systems Builds](http://forum.driveonwood.com/t/youtube-small-systems-builds/6703)
**Author:** [@SteveUnruh](http://forum.driveonwood.com/u/SteveUnruh)\ **Replies:** 155\ **Last updated:** [May 25, 2026, 5:04pm UTC](http://forum.driveonwood.com/t/youtube-small-systems-builds/6703 "2026-05-25T17:04:37Z")
Here BobMac is a 1,113,330 viewed fellow I stumbled across looking over at my recommended side feed on youtube: As a no-weld system I hope @tcholton717 catches this one too. Best to watch this one with CC … --- ## [Motorcultivator with chargas](http://forum.driveonwood.com/t/motorcultivator-with-chargas/7084)
**Author:** [@giorgio](http://forum.driveonwood.com/u/giorgio)\ **Replies:** 125\ **Last updated:** [May 17, 2026, 1:39pm UTC](http://forum.driveonwood.com/t/motorcultivator-with-chargas/7084 "2026-05-17T13:39:15Z")
--- ## [Charcoal cross draft gasifiers](http://forum.driveonwood.com/t/charcoal-cross-draft-gasifiers/8552)
**Author:** [@Lucasford123](http://forum.driveonwood.com/u/Lucasford123)\ **Replies:** 1\ **Last updated:** [April 25, 2026, 4:22pm UTC](http://forum.driveonwood.com/t/charcoal-cross-draft-gasifiers/8552 "2026-04-25T16:22:00Z")
I have a question about charcoal cross draft gasifiers. First of all, what happens when you turn the engine off? Will the combustion just slow down and go out, and how easy would it be to start it later? --- ## [Charcoal gasifier](http://forum.driveonwood.com/t/charcoal-gasifier/8327)
**Author:** [@mart85](http://forum.driveonwood.com/u/mart85)\ **Replies:** 9\ **Last updated:** [March 21, 2026, 5:20am UTC](http://forum.driveonwood.com/t/charcoal-gasifier/8327 "2026-03-21T05:20:33Z")
I am impressed with how open and honest this build is both with his solutions, and how quickly he came to solutions. That charcoal sure must have a good deal of water in it… But looks promising. --- ## [Woodgas generator as part of an off-grid system - random thoughts and pictures](http://forum.driveonwood.com/t/woodgas-generator-as-part-of-an-off-grid-system-random-thoughts-and-pictures/8375)
**Author:** [@andris\_lv](http://forum.driveonwood.com/u/andris_lv)\ **Replies:** 20\ **Last updated:** [January 18, 2026, 2:29pm UTC](http://forum.driveonwood.com/t/woodgas-generator-as-part-of-an-off-grid-system-random-thoughts-and-pictures/8375 "2026-01-18T14:29:48Z")
good day )) a couple years ago this members of this forum provided great help in building my wood gasifier. now i would like to share my experience running it to power my household in winter months. this will be incoh… --- ## [The double flute charcoal gasifer](http://forum.driveonwood.com/t/the-double-flute-charcoal-gasifer/5542)
**Author:** [@Bobmac](http://forum.driveonwood.com/u/Bobmac)\ **Replies:** 381\ **Last updated:** [November 23, 2025, 2:50am UTC](http://forum.driveonwood.com/t/the-double-flute-charcoal-gasifer/5542 "2025-11-23T02:50:10Z")
Here is a new design that I am working on. Trying to make it a no weld up unit. Bob --- ## [First build, quick question](http://forum.driveonwood.com/t/first-build-quick-question/8198)
**Author:** [@mywoodgasjourney](http://forum.driveonwood.com/u/mywoodgasjourney)\ **Replies:** 6\ **Last updated:** [November 6, 2025, 4:25am UTC](http://forum.driveonwood.com/t/first-build-quick-question/8198 "2025-11-06T04:25:30Z")
Evan here from Connecticut, Making an ammo can charcoal unit as a test bed for starters. After reading for a bit and watching Matt’s videos I made a no weld boiler nozzle to try out, Will use 1/4" heat shields. Going t… --- ## [The Gasifier That Wanted To Be](http://forum.driveonwood.com/t/the-gasifier-that-wanted-to-be/2334)
**Author:** [@Bobmac](http://forum.driveonwood.com/u/Bobmac)\ **Replies:** 306\ **Last updated:** [October 21, 2025, 5:48pm UTC](http://forum.driveonwood.com/t/the-gasifier-that-wanted-to-be/2334 "2025-10-21T17:48:27Z")
Well today I was talking to Max asking him some questions on charcoal bedding slope out of the tuy’ere or nozzle and I kinda let “the cat out of the bag”. Yes I have been building a charcoal gasifier and yes pictures an… --- ## [Chainsaw help please](http://forum.driveonwood.com/t/chainsaw-help-please/7956)
**Author:** [@machinemaker](http://forum.driveonwood.com/u/machinemaker)\ **Replies:** 35\ **Last updated:** [September 17, 2025, 3:51am UTC](http://forum.driveonwood.com/t/chainsaw-help-please/7956 "2025-09-17T03:51:35Z")
I have a jonsered 2152 c that has always worked great until now. ran it in the morning, then stopped for lunch, and now no spark. I tried disconnecting the kill switch and still no spark, replaced the ignition coil, stil… --- ## [ReInventing the VersiFire!](http://forum.driveonwood.com/t/reinventing-the-versifire/8193)
**Author:** [@Matt](http://forum.driveonwood.com/u/Matt)\ **Replies:** 60\ **Last updated:** [September 9, 2025, 10:36pm UTC](http://forum.driveonwood.com/t/reinventing-the-versifire/8193 "2025-09-09T22:36:07Z")
Happy Spring everyone!! Ok so yeah its that time of year again and Ill be picking back up on gasser I was working on last year. However that design will be completely re worked into a new design that I am working on now… --- ## [Rindert's small engine wood gasifier](http://forum.driveonwood.com/t/rinderts-small-engine-wood-gasifier/6593)
**Author:** [@r\_wesseling](http://forum.driveonwood.com/u/r_wesseling)\ **Replies:** 110\ **Last updated:** [August 12, 2025, 7:13am UTC](http://forum.driveonwood.com/t/rinderts-small-engine-wood-gasifier/6593 "2025-08-12T07:13:27Z")
I’ve been making a wood gasifier for small engines based on Joni’s. Should be good for 300-700cc engines. I tried to run it yesterday. Not very successful. It sort of surges. It produces good gas for a minute or so, the… --- ## [KVL simple fire](http://forum.driveonwood.com/t/kvl-simple-fire/8046)
**Author:** [@JonHurst](http://forum.driveonwood.com/u/JonHurst)\ **Replies:** 11\ **Last updated:** [May 25, 2025, 2:28am UTC](http://forum.driveonwood.com/t/kvl-simple-fire/8046 "2025-05-25T02:28:31Z")
Hi everyone, Long time lurker but first time posting. I have recently built a charcoal gasifier in the style of Koen Van Looken’s version of Gary Gilmore’s simple fire. Here is a video of the first time I ran it. I dec… --- ## [First Down Draft Charcoal Gasifier](http://forum.driveonwood.com/t/first-down-draft-charcoal-gasifier/7522)
**Author:** [@BrianAltEnergy](http://forum.driveonwood.com/u/BrianAltEnergy)\ **Replies:** 259\ **Last updated:** [May 22, 2025, 6:33am UTC](http://forum.driveonwood.com/t/first-down-draft-charcoal-gasifier/7522 "2025-05-22T06:33:59Z")
I want to try making a down draft gasifier since my first simple fire gasifier is almost complete and working. As I showed in my simple fire thread, I’m starting with a propane tank. I estimated wrong and this is… [Next page](http://forum.driveonwood.com/c/small-engines/11.md?page=1)