Jun/Jul 2008

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Looking For Something Different?

By Richard Mock

108 Braurtcroft Lane Snyder, New York 14226

Why not build an engine that uses no fuel at all except a 12 volt battery? Magnetism is the fuel, I guess. They're a lot of fun to build and they're cheap, too!!

Take a new or used General Motors starter solenoid and piston that gets pulled in. They become the cylinder and piston, so to speak. (Remove the yoke from the piston and peen the stub shaft tight on the piston. Remove the piston flange for best looks.) They have two separate sets of windings in them. I have found the "hold in" windings to be the best. It is the smaller of the wires. You should have continuity between the wire and the outside of the case.

The rest is built out of scraps. Make a crankshaft to ride in ball bearings. (An old automobile water pump shaft works good.) Total stroke should be ar...

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