Starting a Car - Explained

What happens when you turn your key? Your engine starts, but what's the process that causes this to occur. It's truly impressive that all this happens in about 1 second.

Category:

Autos & Vehicles

Tags:

• Starting
• car
• explained
• what
• happens
• when
• turn
• my
• key
• and
• the
• engine
• starts

[psanjay100]

what about turning off engine & when engine is running what about starter motor

[EngineeringExplained]

@psanjay100 When you turn off the motor you simply cut off electricity from the spark plugs, and the engine can no longer fire so it stops. When the engine is running, the starter motor retracts, and is not in contact with the flywheel.

[EngineeringExplained]

@psanjay100 When you turn off the motor you simply cut off electricity from the spark plugs, and the engine can no longer fire so it stops. When the engine is running, the starter motor retracts, and is not in contact with the flywheel.

[EngineeringExplained]

@psanjay100 When you turn off the motor you simply cut off electricity from the spark plugs, and the engine can no longer fire so it stops. When the engine is running, the starter motor retracts, and is not in contact with the flywheel.

[yamenad]

@EngineeringExplained How about the fuel remaining in the chamber? does it stay there till you restart the car?

[EngineeringExplained]

@yamenad Yep. It's a very small amount though.

[Penguinlogik]

@EngineeringExplained Newer cars have a hydrocarbon filter in the air box (white paper like filter than severely restricts airflow) that prevents the fuel from escaping into the environment.

[EngineeringExplained]

@nyeman17 Most starter systems are pretty similar, diesels use more powerful starters since they have greater compression ratios so they need more power to turn over. As for the firing order, it's all about balance. Watch my latest video "Ignition Systems." Should help with this topic.

[nyeman17]

Is that starter system the same for every car? and can you explain, how they came up with the spark plug igniting order? I know it does not ignite each cylinder in order, they move the order around. Like Cylinder one fires first then cylinder 6 then 3 then 5 ect. Also why this is needed? is it to keep the engine more or less positioned in equilibrium when you give it gas?

[honeybun33]

oh ok i see now !. i wasnt really sure what the "starter" device does. its "starts" the ignition process by taking a charge from the battery . great diagram for simple folks like me