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ORIGINAL: Diesel Dave-RCU

greasybenz

Back to your original question. Yes you can get a diesel for the truck. I would suggest contacting Davis Diesel for an engine and a conversion head. I would say that a .10 should prove to be sufficient. Remember, when you convert to diesel, you pick up about 1/3 more torque over a glow of the same size.

As far as the bio diesel goes. At one time here there was a thread that I posted in, talking to a guy that has run a plane on bio diesel. I don't know if it is still here, I have been gone for almost a year. Search my posts, you might get lucky.

Understand that models do NOT use a true diesel, like you would find in a car, truck etc. They require an additive containing lots of either, Castro oil, and amyl nitrate. Here is the reason why. (if you already know, please bear with me for the benefit of those reading that don't)

A true diesel, in a car, truck, has no ignition to fire the fuel. Also, the fuel is not mixed with air until it is in the cylinder. Plain air is draw en into the cylinder to be compressed on the compression stroke. When ever you compress air rapidly you will create heat. The more you compress, and the faster you compress, the more heat you will get. At top dead center (TDC) the heat of the air in the cylinder is well above the flash point of the diesel fuel. Fuel is injected into the cylinder in a fine mist and immediately burns, creating power.

Now lets talk about the model engine.
First, the model engine is a 2 cycle engine. It also uses a carburetor to mix fuel and air. There is no way you will be able to develop enough compression to generate the heat needed to burn Kerosene by its self in a models engine without blowing it up, it just won't handle it. So we CHEAT!! This is how the model engine runs. The fuel is a mix of about 50% Kerosene (In this case BIO-DIESEL), 30% liquid ether, 20% Castro oil and a pinch of Amyl Nitrate. As stated we mix our fuel, and air in a carburetor, then the air/fuel is draw en the cylinder. In the cylinder head there is a contra piston, that can be adjusted by a screw that is in place of a glow plug. This contrapistion allows you to adjust the amount of compression the engine has. Like I said before you cannot get the heat to burn Kerosene, BUT YOU CAN GET THE HEAT YOU NEED TO BURN ETHER!!!!! The trick is to adjust the contra piston, so as when the engine rolls over TDC you have generated just enough compression to get just enough heat to fire the Amyl nitrate, which will get the ether burning which will get the Kerosene burning, get it!!! The Amyl nitrate is the match, the Ether is the lighter fluid, the kerosene is the charcoal in the barbecue.

So back to the question you had. Yes you can run a model diesel on BIO-DIESEL. I would get the engine from Davis, along with the conversion head, and a half gallon of his fuel mix, which is the ether, amyl, and Castro, all ready to go. You just have to mix it with the BIO in equal parts, and dump it in.

I hope this helped and here is Davis Diesels web site http://www.davisdieseldevelopment.com/

Dave
no not related to davis