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Waste Vegetable Oil Conversion for Diesel Bus

Step 6Heated Fuel Line

Heated Fuel Line
A hot coolant hose from the engine goes back to the main fuel tank. It runs into 30 feet of PEX brand tubing coiled up in the tank. That heats up the fuel in the tank.
PEX is a type of heat-resistant plastic tubing available at hardware stores.

Inside another hot coolant hose is the aluminum fuel line.
That way the fuel is kept hot all the way to the engine.
Here's the T fitting where the fuel line comes out of the hot coolant hose.

This instructable has more details on how to make hose-in-hose heated fuel lines.
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Author:TimAnderson
Tim Anderson is the author of the "Heirloom Technology" column in Make Magazine. He is co-founder of www.zcorp.com, manufacturers of "3D Printer" output devices. His detailed drawings of traditional ...
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