The Only Running Tree

An all-wood gasoline engine that really runs!

'Counterclockwise from above: The Louisville Slugger tongue and front axle; the camshaft, timing gear and end of the pushrod; a side view of the timing gears and pushrod; the cylinder, piston and connecting rod; the Tinker Toy fuel mixture adjustment with chock in the intake; and the valves, return rockers, fuel mixer and gas tank. '