Gas replacement question

[just_sawing]

Yes I can produce bio Diesel but could you produce a fuel arteritive for you chain saw? Yes I am the first generation of my family that didn't make moonshine for a living so I can make acohol.

[uncle Will in In.]

Your chain saw should run on white lightnin'.
Might throw the saw dust plumb out of the woods.

[Michael Kawalek]

What I've read is that gas engines can be easily converted to alcohol, but you need to change the orifices inside the carburator. Because of the density or vapor pressure or something, more alcohol needs to get into the cylinder per stoke, so that's why you need to increase the size of the orifice. For modern automotive engines that can run on E85, the car's computer is programmed to sense the proportion of gasoline vs alcohol, then instruct the fuel injectors to squirt in the right amount of fuel.

Since you have to mix the engine's lubricating oil with the fuel, will 2-cycle engine oil mix with alcohol? I think the lubricating oil will be the single most important limitation.
Michael

[Beeman]

Yes you can but... As someone stated you would most likely need to richen the jetting. Then you get to the oil mix problem. you will need an oil that will mix properly like Bel-Ray but the special Bel-Ray for alcohol. Many years ago I got to run some competition chainsaws that we ran on alcohol and we had to find the Bel-Ray oil used for racing motorcycles so it would mix with the alcohol.

[MushCreek]

Also, the rubber seals, hoses, and diaphragms in engines don't seem to like alcohol. I read of a lot of trouble with chainsaws running ethanol blended gasoline, for instance.

[texican]

I'd keep whatever gasoline I had around the house, after a shtf scenario, strictly for the chainsaw. I've got almost a dozen crosscut saws, of varying 'goodness', and I've started collecting the tools and knowledge needed to sharpen and maintain em. Crosscut saws work on beans and cornbread...

Have access to 'condensate'.... which at one time would run some older trucks and tractors... but I wouldn't want to ruin a chainsaw (at least mine ) experimenting... a couple years in a teowawki, I might, when it was obvious gasoline production would never start up again....