How Do Spark Plugs Work?

Spark plugs are essential components of internal combustion engines. They ignite the fuel-air mixture, creating the power that drives the engine. Without spark plugs, the engine would not be able to run.

How Do Spark Plugs Work?

Spark plugs work by creating a spark that ignites the fuel-air mixture in the engine’s cylinders. The spark is created when an electrical current flows between the spark plug’s center electrode and its ground electrode. The center electrode is connected to the ignition coil, which provides the electrical current. The ground electrode is connected to the engine’s cylinder head.

When the ignition coil sends an electrical current to the spark plug, the current flows through the center electrode and jumps to the ground electrode. This creates a spark that ignites the fuel-air mixture in the cylinder. The spark ignites the mixture, creating a rapidly expanding flame front that drives the piston down the cylinder.

Types of Spark Plugs

There are many different types of spark plugs available, each designed for a specific type of engine. The most common types of spark plugs are:

Copper spark plugs are the most common type of spark plug. They are made of copper and have a relatively short lifespan of about 30,000 miles.
Platinum spark plugs are made of platinum and have a longer lifespan of about 60,000 miles. They are more expensive than copper spark plugs, but they last longer.
Iridium spark plugs are made of iridium and have the longest lifespan of about 100,000 miles. They are the most expensive type of spark plug, but they last the longest.

Importance of Spark Plugs

Spark plugs are essential for engine performance. They provide the spark that ignites the fuel-air mixture, which creates the power that drives the engine. Without spark plugs, the engine would not be able to run.

It is important to keep spark plugs in good condition. Worn or damaged spark plugs can cause a variety of problems, including:

Engine misfires
Reduced engine power
Increased fuel consumption
Emissions problems

It is recommended to replace spark plugs according to the manufacturer’s recommended schedule. This will help to ensure that your engine is running at its best and that you are getting the most out of your fuel.

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