Parts of a Car Engine Diagram

Engine Block

The engine block is the main structural component of the engine. It houses the cylinders, crankshaft, camshaft, and other major components. The engine block is typically made of cast iron or aluminum.

Cylinder Head

The cylinder head is located at the top of the engine block and seals the combustion chambers. The cylinder head contains the valves, spark plugs, and other components that control the flow of air and fuel into and out of the cylinders.

Pistons

The pistons are located inside the cylinders and move up and down to compress the air and fuel mixture and to create power. The pistons are made of aluminum or steel.

Connecting Rods

The connecting rods connect the pistons to the crankshaft. The connecting rods allow the pistons to move up and down while also transmitting the power from the pistons to the crankshaft.

Crankshaft

The crankshaft is located at the bottom of the engine block and converts the up-and-down motion of the pistons into rotary motion. The crankshaft is made of steel.

Camshaft

The camshaft is located at the top of the engine block and controls the opening and closing of the valves. The camshaft is driven by the crankshaft.

Valves

The valves are located in the cylinder head and control the flow of air and fuel into and out of the cylinders. The valves are opened and closed by the camshaft.

Spark Plugs

The spark plugs are located in the cylinder head and provide the spark that ignites the air and fuel mixture in the cylinders.

Oil Pump

The oil pump circulates oil throughout the engine to lubricate the moving parts. The oil pump is driven by the crankshaft.

Water Pump

The water pump circulates coolant throughout the engine to keep it cool. The water pump is driven by the crankshaft.

Alternator

The alternator generates electricity to power the electrical components of the vehicle. The alternator is driven by the crankshaft.

Starter Motor

The starter motor cranks the engine to start it. The starter motor is powered by the battery.

Diagram

Here is a diagram of a car engine: