ethonal, biodiesel and a 2-stroke?? - Diesel Forum

luckys420 · 01-29-2007, 09:15 PM

anyone done it? I am thinking of trying it with a worhtlss chain saw. Any recomendations on mixture quantities? I figure I will start out heavy on the biodiesel that way I dont ruin any internal parts with friction.

ta152h0 · 01-29-2007, 10:46 PM

It won't work. You need high compression for the biodiesel to ignite. Need a sparkplug for the alcohol to ignite and a glow plug for the biodiesel. How are you going to coordinate the two events ?Your arm is going to fall off just cranking the combination.

luckys420 · 01-30-2007, 06:36 AM

2 strokes you mix the gasoline and the oil. the gas/oil lubricates the internals of the engine since there is no 'oil stroke'. In this case gasoline = ethonal, biodiesel = oil.

With biodiesels extraordinary lubrication properties I am thinking that it may be good enough to lube a 2-stroke.

I am not worried about or trying to ignite the biodiesel through compression, that would never happen in a low compression motor.

What i am worried about is having enough lubrication while still being able to ignite the ethonal.

jprensink · 01-30-2007, 11:32 AM

I don't see why it woouldn't work, if you start heavy on the BD the worse that could happen is a big cloud of smoke and a messed up plug.

Seafarer12 · 01-30-2007, 05:14 PM

Why not just run svo? Unless you have biodiesel around. I know you can run a 2 stroke 0n ethanol. You just need to richen your mixture up. I would just run a rich mixture of fuel to oil. Like 24 to 1 like when you use to use 30 wt motor oil as 2 stroke oil.

ta152h0 · 01-30-2007, 06:12 PM

I misunderstood the original post. I thought he wanted to burn biodiesel instead of gas. Sorta like having a diesel chain saw.

luckys420 · 01-30-2007, 07:44 PM

well alright then, I am going to go for it. We have an e-85 pump and I just signed up for the biodiesel coop. I will keep you updated on how it works out.

firstrattler, I thought you misunderstood, but i thought i would explain anyways [img]/ubbthreads/images/graemlins/biggrin.gif[/img]

ta152h0 · 01-30-2007, 10:32 PM

Go for it. Keep records. My friend in college wanted to put a HODAKA motorcycle transmission on a chain saw. Now that I think about it, having a five speed chainsaw would be cool [img]/ubbthreads/images/graemlins/biggrin.gif[/img]

Spencnaz · 01-31-2007, 01:28 PM

Just keep an eye on bearings and piston ring wear.

mus302 · 01-31-2007, 04:59 PM

I heard about using biodiesel in place of two cycle oil back in December and did some checking over the internet. Most people say that it doesn't work too good. I was interested in because I run a lawn care service and thought it would be a good way to lessen pollution. I think going to one of the soy based two cycle oils is the way that I will go. You can find info on those here.

Soy Based Products

As far as using E85, it might be hard on the plastic and rubber parts. I think E10 is probably safe for most things, maybe not really old equipment, but E85 may be pushing it.

TIMLUTZ · 07-15-2009, 03:34 PM

If you want to "go green" with your chainsaw just get you some castor oil. It's hands down the best oil for a 2 stroke. Any ammount of diesel, biodiesel or WVO in the gas is going to suppress combustion and give you a lot of smoke.