Relier Pairs Parts of an EngineVersion en ligne To complete this worksheet, match the engine parts with what they do. par Alison Jack 1 Covers the pistons 2 Raises and lowers the valves 3 Connects pistons with crank shaft 4 These vaporize gasoline 5 Lets gas vapor in and exhaust out 6 The intake manifold is bolted to this. 7 Rotary power output 8 The carburetor sits on top of this. 9 Pistons reciprocate in these 10 Ignites the gasoline 11 Surrounds engine block Cam shaft Piston rods Spark plugs Cylinder heads Crank shaft Cylinders carburetor or fuel injector Water jacket Engine block Intake manifild Valves