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