The engine converts energy to mechanical motion. They come in two main types: gasoline and diesel. The main components of the engine include the engine block, crankshaft, connecting rods, pistons and the cylinder head. Other components attached to the engine like the timing belt, accessory drive belt and variable valve timing system are included in this section.
The internal combustion engine uses hot expanding gases to push against the piston. The downward movement of the piston is converted to rotational movement by the crankshaft. It is then directed to the rear wheels of the car. Essential parts of the engine, like the timing chain and timing belt synchronize the timing of the crankshaft and camshaft. The engine rotates the accessory drive belt system in order to provide energy to systems like steering and HVAC.