Car Engine Parts Labeled
Cylinder head
The cylinder head is the part of the engine that covers the top of the cylinders. It contains the valves, which open and close to let air and fuel into the cylinders, and the spark plugs, which ignite the air and fuel mixture.
Cylinder block
The cylinder block is the main structural component of the engine. It contains the cylinders, which are the chambers in which the pistons move up and down. The cylinder block also contains the coolant passages and oil passages.
Oil pan
The oil pan is a metal pan that fits under the engine. It collects the oil that drains from the engine and stores it until it can be pumped back into the engine.
Crankshaft
The crankshaft is a metal shaft that runs through the center of the engine. It is connected to the pistons by connecting rods. As the pistons move up and down, they turn the crankshaft, which in turn drives the wheels.
Piston
The pistons are metal cylinders that move up and down inside the cylinders. They are connected to the crankshaft by connecting rods. As the pistons move up and down, they compress the air and fuel mixture in the cylinders, which is then ignited by the spark plugs.
Connecting rod
The connecting rods are metal rods that connect the pistons to the crankshaft. They allow the pistons to move up and down while still being connected to the crankshaft.
Camshaft
The camshaft is a metal shaft that runs along the top of the engine. It is connected to the crankshaft by gears or a chain. The camshaft has lobes on it that push on the valves to open and close them.
Valves
The valves are metal plates that open and close to let air and fuel into the cylinders, and to let exhaust gases out of the cylinders. The valves are controlled by the camshaft.
Timing belt
The timing belt is a rubber belt that connects the crankshaft to the camshaft. It ensures that the valves open and close at the correct time.
Flywheel
The flywheel is a heavy metal wheel that is connected to the crankshaft. It stores energy when the engine is running, and releases it when the engine is not running. This helps to keep the engine running smoothly.
Starter
The starter is an electric motor that cranks the engine to start it. It is usually located on the side of the engine.
Alternator
The alternator is an electrical generator that charges the battery and powers the electrical system of the car. It is usually located on the side of the engine.
