Build your own motorized Combustion Engine!
This officially licensed Smithsonian Combustion Engine Model Kit educates anyone who’s interested in learning how an actual 4 cylinder engine operates. Watch the spark plugs fire with real lights and valves rock and close with sound. See how the pistons drive the crankshaft and learn correct engine timing, with rotating belts and engine fan. Kit comes with more than 100 parts that screw together easily and includes a display stand; requires two AA batteries. Instructions are printed on the back of a displayable 35” x 23” automotive poster. Model Kit measures about 9”l x 3.25”w x 8”h. Recommended for ages 8 and up.