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Labeled diagram of car engine

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The labeled diagram of car engine shared here is one of the best free car engine diagrams you can find. This is because the engine shown in the diagram below is one of the most basic yet simple car engines ever built over the century. It is an Austin 848 cc engine completed with all the important engine parts which make the engine runs. Most of the engine parts in this antique engine are still appearing in latest car although this engine does not come with a fuel injection system.

Car engine diagram

1. Engine Cover: Most of the newer car engine has a beautiful engine cover, so does this Austin-Morris engine. Under the engine cover, there are pushrod, valve, cylinder, piston, crankshaft, camshaft, and other components which hide under the cylinder block.

2. Alternator: Alternator works as a recharge station in a car engine. When the engine turns, it will spin the alternator with a fan belt (labeled no 14) and it will generate electric. Alternator provides those electrical powers to the car as well as to the car battery to recharge it while the engine is running.

3. Carburetor: Carburetor plays the role to mix the right amount of gasoline with air in order to allow the engine runs appropriately. Most of the newer car engine is now running with fuel injection system so they may not have a carburetor.

4. Bowl: For fuel to travel into the carburetor.

5. Radiator: Radiator is part of the engine’s cooling system. It works together with thermostat (labeled no 10), water pump (labeled no 17), radiator cap (labeled no 7), radiator fan (labeled no 6), relay, water or coolant, and a few main hoses with the purpose to cool down the engine.

6. Radiator Fan

7. Radiator Cap

8. Wiper Motor

9. Manifold

10. Thermostat: This small metal plays a very significant role while the engine runs. Thermostat adjusts the engine’s operating temperature by controlling the flow of coolant from/to the engine from/to the radiator. If the engine temperature is higher than expected, a thermostat will eventually “open the door” and allow the coolant to flow to radiator and back to engine to cool it down.

11. Brake Booster, Vacuum Servo, or Brake Servo: It is to boost the braking power of a vehicle.

12. Brake Master Cylinder

13. Clutch Master Cylinder

14. Fan Belt

15. Spark Plug or Sparking Plug: This device delivers electric from ignition system to the engine. It ignites the compressed fuel and air mixed by Carburetor by an electric spark and therefore the engine will start when the combustion happens.

16. Horn

17. Water Pump: The water pump shown in the diagram above is driven by a belt (labeled no 14) connected to the crankshaft. It circulates fluid whenever the engine is running.

18. Brake Fluid Hose

Car engine diagram

19. Distributor: A distributor routes high voltage from the ignition coil (labeled no 20) to the spark plugs (labeled no 15). If the firing order is incorrect, the engine will not run smooth.

20. Ignition Coil: The job for an ignition coil is to convert the battery voltage (mostly is 12 V) to high voltage in order to create electric spark to produce combustion.

21. Starter: A starter is to rotate a car engine to initiate the engine’s operation.

22. Oil Filter: This is the component that will be replaced every time the engine oil is changed. The job of an oil filter is to remove contaminants from the engine oil. It is a cheap component but an engine will never last for long without having an oil filter.

This labeled diagram of car engine is a very basic and simple one. It is the most basic gasoline engine. There are many parts are still missing in the diagram above but it is easy to understand especially for dummies who know nothing about engine. Do check back Carsut.com for some other diagram such as electric car engine diagram, hybrid car engine diagram, or diesel car engine diagram.

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