I like hit and miss motors too. 540 RPM is so handy. Some of them had big compression ratios too, like 15:1. But they’re antiques now, not practical or cost effective for daily use. Do any manufactures still make some thing like that?
Best I can think of is Predator 212cc. Have thought of building a worm drive out of parts from amazon to make a 33:1 reduction. I would have to make a casting and do a bunch of machining. I wish I could just find some old junk (not garbage) that I can use. The way people on here do.
And yeah, I know. Race car guys are EXTREAMLY careful with chassis dinos. The guys at the emissions testing place too.
Hey SteveB,
What is interesting is that you have a digital record of this obviously filmed experience.
Yep. You would have needed most of the power of that Jeep four cylinder to power that size of wood milling equipment.
Single wheel powering off of a vehicle rear axle differential is an old true&true, needs-musts way of it.
Some differential drives last a long time. Some not. They were bearings and lubrication only designed for corners turning intermittent loading’s.
When the differential side gears siege fail and lock up the vehicle engine WILL drive both axle ends wheels irresistibly forwards.
Heads up, all wanting to old school it.
S.U.
Do they use the Predator engines on power washers over there ? if so they have a reduction box already fitted to them not sure of the turn down ratio though
When someone is waching usualy something goes wrong. Such was the case here. The clutch cable broak, but l welded a lever straight on the cluch bolt just for that kind of case. Not ideal but it can be shifted.
Allso l had a mishapp, l forgot to lift the saw head prior to returning the log and it kicked the blade off. It rolled spectacularly around a 100 feet on the road, needless to say it picked some nasty scars on the teeth. But hey, it still saws straight!! Not as clean thugh…
The wood l am sawing is for the sawmill roof. Once its covered, its time for woodgas! This machine is hungry and petrol isnt cheap…
The saw lifts with a pulley sistem and a simple cable winding on a 1/2" pipe.
Ha, the cart l just stand on it and push with my legs, walk on it if you like its crude but l likd it. It gives me that personal feel, l have good feeling what is happening on the blade. Tells me if l hit a knot, a soft spot… and adjust the pressure acordingly.
Great job on the mill . I’m sure you will get a lot of use out of it over the years.
On one other note I noticed your having to work near your PTO shaft that includes a universal joint.
I wanted to show a couple of pics of my PTO shaft. You might say I am somewhat of a coward when having to work close to them if they have a U joint or shear bolt.
I have a fence post driven in the ground and stands close to the PTO shaft . Also a cable loop around the shaft. If the shear bolt or U joint gives way I hope the above will give me a half second to get out of the way.
The pto scares me allso, l figured later l will build a wall between the pto and the track, and “hope for the best” untill sawing lumber for the building, but now thinking about it, that is kinda stupid. I will coppy your idea untill l finish with a permanent structure. Thanks for the help and concern.
This is a ACME 8hp engine. Max rpm 3200. Unfortunaly that is all the table on the engine says.
I know a similar ACME engine with 14 or so hp on a BCS hay cutter has 550ccm. But l have no idea what the displacement on my 8hp is. Has anyone got a idea? I know @Chris mentioned he has them at work…
I need this information for a aproximation of the hearth dimensions of the gasifier. I have a old Imbert from my Chevy that might be a suitible candidate if choked down…
Second thing is the carb. It wuld be real easy to woodgas this motor if piped trugh the carb. I am thinking to have it on WOT all the time and throtle with a valve close to the saw head for easyer control. I belive if the carb is always WOT it might cut down on soot deposits in the venturi. Any thods?
Are you planning on wood or charcoal ?
With a lot of start and stop, charcoal would be preferable, right ?
With this stationary setup you could afford to go with a huge setteling area/towel filter and the gas would be fairly clean anyway, right?
The downside I see with a remote throttle is you will loose the governing. Also, the air valve would have to be remote too and there will be a delay in response time when adjusting the mix. I’m not sure if that would cause a problem or not.
I’m just thinking out loud here.
Well the only reason l let the engine idle in neutral between cuts is to cut down fuel consumption not a problem when fuel is free… and idle with pto ingaged is not possible because it doesent run smooth at such low rpm.
With woodgas l can let it highidle in gear and only throtle it to WOT when l push the log to the blade.
This sayd, the fuel demand will not jump up and down as much as most other applications.
The plan is wood. A huge hopper with wk tubes to dry the wood for the next run. And produce me some tar that l need on the farm!
And yes, a big filter for gas storage.
This carb has no governor wich is a pitty. So that part wuldnt change much. But the manner with the delay is valid. Will see…
For 8hp it might work. But with a bigger tractor the PVC would simply shatter expecally in the cold. My mower simply has a metal box around the end of the shaft so when the I joint explodes it will contain the mess it is 100 hp on the shaft and about half inch plate. Just remember to keep access for grease fitting when you add guarding or you will be pissed later. I like lock collars which allow me to slip off the shaft for mantaince and then slip it back on without tools or removing guarding.
AMCE company was the supplier of everything the coyote in roadrunner cartoons used to try and catch the roadrunner. I don’t remember him once catching the road runner but plenty of times he ended up in a deadly situation. It was the butt of all their jokes. So I grew up seeing ACME boxes and knowing this won’t end well… lol
Aaaa now l get it kinda dumb move from ACME in terms of advertisment
The truth is different thugh. Those engines are tough. Father in law has a BCS hay cutter with a ACME that runs for over 40 years without a defect, runing allmost non stop in the 70s and 80s. Cuting hay at days and harvesting grain at night.
I was wrong, this is its specs of the BCS engine
There were allso 18 hp engines. Now, if a 12hp or a 18hp wuld happen to fit in place of my 8hp engine that is allso a possibility… waiting for @Chris with the specs first.
l just stand on it and push with my legs, walk on it if you like 
