Four Stroke Petrol Engine

Sized For Student Use.

The workings of an engine are clearly explained through observing this representation four stroke petrol engine. The operation of the valves is clearly evident with the cams being driven by a gear train from the rear of the main crank. A simulated spark plug uses a small lamp to indicate the firing point and a cross section of the carburetor is shown. Mounted on a base, the engine provides screw terminals for connection to a 3V battery.