Used cooking oil as MB fuel?

bilboby

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As this can be acheived for car's i'm wondering if it is possible for MB's and if so finding a seller for purchasing the fuel adapter kit.

Cheers
 
Interesting....

Not too sure if this could be done on a small 2 stroke engine like this.

First thing I would think of is immediate loss of power!
 
I've seen bikes powered by a small diesel engine and run on bio-diesel. Pretty much the same configuration as a four stroke installation,just a different powerplant.
 
I would hazard a guess that straight cooking oil would require a lot more compression than you are going to get out a happytime
http://biodiesel.infopop.cc/eve/forums/a/tpc/f/419605551/m/743105152?r=920107152
here's a link to a site that used to have plans and instructions for turning two old water heaters and a couple of five gallon buckets into a cracking device to refine cooking oil into diesel
 
you would need A LOT of compression. any kind of oil (like diesel or vegitable) ignites by compression, not by spark or fire. glow plugs are only there to heat up the cylinders, NOT to fire the fuel.
you would also need fuel injection, and fuel pump that would give very high fuel pressure to inject the oil into the cylinder.
you would need a feed and return line to and from the fuel tank, and you would also need one heck of a filtering system to make sure that the oil you would be getting is 100% free of debris and foreign matter.

small nitro r/c car engines work on the same principle, they have a lot of compression but they burn a 20% nitromethane fuel mix. they are based on 2 stroke engines but they have a glow plug like a diesel, which is only used to get the engine started. once they are running, the fuel is fired by compression.
 
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If you scroll way down the page there is a small scooter with a Chinese clone (Yanmar) diesel motor.. (Lots of others also) and I've got a homebuilt scooter/bike/cycle article somewhere in my junk....(found it)

http://thekneeslider.com/archives/2006/03/20/diesel-powered-bobber-chopper/

http://www.dieselbike.net/privateconversions/privateconversionsS-Z.htm

I doubt there is a small enough diesel engine being built for a standard bike conversion,but I've seen some 6 hp ones that look a bit larger than the 4 strokes being used from HF (honda clones) that could be used with Bio-diesel...straight cooking oil would gum even them up though
 
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you would need A LOT of compression. any kind of oil (like diesel or vegitable) ignites by compression, not by spark or fire. glow plugs are only there to heat up the cylinders, NOT to fire the fuel.
you would also need fuel injection, and fuel pump that would give very high fuel pressure to inject the oil into the cylinder.
you would beed a feed and return line to and from the fuel tank, and you would also need one heck of a filtering system to make sure that the oil you would be getting is 100% free of debris and foreign matter.

small nitro r/c car engines work on the same principle, they have a lot of compression but they burn a 20% nitromethane fuel mix. they are based on 2 stroke engines but they have a glow plug like a diesel, which is only used to get the engine started. once they are running, the fuel is fired by compression.

It used to be that way, but technology has come a long way. Although the cost on these small engines would be monstrous compared to the price of gasoline, even if it can be done.
 
It used to be that way, but technology has come a long way. Although the cost on these small engines would be monstrous compared to the price of gasoline, even if it can be done.

That's more or less exactly the case. To run an engine on unmodified veggie oil, there are three basic requirements:

1) The engine must be a diesel engine

2) The oil must be preheated to reduce its viscosity. Usually this is accomplished by running a heat exchanger from the water cooling system through the veggie oil tank.

3) The engine must have a way to start it and warm it up on regular diesel or chemically refined biodiesel.

Using waste veggie oil adds another requirement:

4) Waste oil must be filtered to remove particles, and heated to drive off any water content, before it is ready to burn in an engine.

There are very few diesel small engines. They are all expensive, large, and heavy compared to their gas equivalents. And before you could consider putting one in a small motorcycle and running it on veggie oil, you'd have to work out some kind of preheat system for the veggie oil tank.

All that means a lot of expense, size, weight, and inconvenience. If biofueling is the goal, it would be far more feasible to run a motorized bicycle on ethanol. Probably any of the engines in common use could be modified to use ethanol or E85 instead of gasoline.

Chalo


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P.S. - that's a really noxious sig you've got there, Al.Fisherman. It seems to me to be in violation of the spirit of the rules here, if not the exact terms of use. If you want to be a jerk, you should at least turn it down in public and limit it to the company of your like-minded jerk friends. Just sayin'.
 
Thank's MB comerades on your thought's and answers for the thread looks like i'll be sticking with having to pay 1.36 euros for filling the tank.

Cheers


NB: Off topic but is their a way off exactly measuring the oil/gas mixture for european weights & measures for a 2ltr tank? Only asking cus i'm sure i'm using to much 2 stroke oil when mixing thus often seeing black smoke coming from the exhaust.
 
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