How Car Engine Starts

1. The Battery

The battery is the power source for the car’s electrical system. It provides the electricity needed to start the engine, power the lights, and run the other electrical components of the car.

2. The Starter

The starter is an electric motor that is used to start the engine. When the ignition key is turned, the starter draws electricity from the battery and uses it to turn the engine over.

3. The Flywheel

The flywheel is a heavy metal wheel that is attached to the crankshaft. It helps to keep the engine running smoothly by storing kinetic energy and releasing it when needed.

4. The Crankshaft

The crankshaft is a metal shaft that runs through the center of the engine. It converts the reciprocating motion of the pistons into rotary motion.

5. The Pistons

The pistons are metal cylinders that move up and down inside the engine cylinders. They are connected to the crankshaft by connecting rods.

6. The Cylinder Head

The cylinder head is a metal casting that covers the top of the engine cylinders. It contains the valves that control the flow of air and fuel into and out of the cylinders.

7. The Camshaft

The camshaft is a metal shaft that runs along the top of the engine. It controls the opening and closing of the valves.

8. The Timing Belt

The timing belt is a rubber belt that connects the camshaft to the crankshaft. It ensures that the valves open and close at the correct time.

9. The Fuel Injector

The fuel injector is a device that sprays fuel into the engine cylinders. The fuel is mixed with air and ignited by the spark plugs.

10. The Spark Plugs

The spark plugs are devices that create a spark that ignites the air/fuel mixture in the engine cylinders.

11. The Exhaust System

The exhaust system is a series of pipes that carry the exhaust gases out of the engine.

12. The Catalytic Converter

The catalytic converter is a device that helps to reduce the amount of pollutants in the exhaust gases.

13. The Muffler

The muffler is a device that reduces the noise of the exhaust gases.

14. The Oxygen Sensor

The oxygen sensor is a device that measures the amount of oxygen in the exhaust gases. This information is used by the engine’s computer to adjust the air/fuel mixture.

15. The Engine Control Module (ECM)

The ECM is a computer that controls the engine’s operation. It receives information from the various sensors and uses it to adjust the engine’s settings.