NGK Spark plug BKR5EKUD Mitsubishi

Get NGK Spark plug BKR5EKUD Mitsubishi

Spark plugs are critical components in internal combustion engines, playing a key role in igniting the air-fuel mixture that powers the engine. Here’s a detailed look at spark plugs:

Function

Spark plugs deliver electric current from the ignition system to the combustion chamber of an engine to ignite the compressed air-fuel mixture with an electric spark.

Components

1. Insulator: Usually made of ceramic, it insulates the central electrode from the spark plug shell.
2. Central Electrode: Conducts the high voltage to the gap.
3. Ground Electrode: Provides the gap where the spark occurs.
4. Threads: Screw into the cylinder head.
5. Gasket: Ensures a gas-tight seal.
6. Hexagon: Allows the use of a wrench to tighten or remove the spark plug.

Types

1. Copper: Good conductor of electricity and heat, but wears out relatively quickly.
2. Platinum: Longer-lasting than copper, with better performance under extreme conditions.
3. Iridium: Offers the longest lifespan and best performance, though they are more expensive.
4. Double Platinum/Iridium: Have both electrodes coated for improved performance and durability.

Heat Range

• Hot Plugs: Have a longer insulator nose and retain heat longer, used for low-speed driving.
• Cold Plugs: Have a shorter insulator nose and dissipate heat quickly, used for high-performance or high-speed engines.

Maintenance and Symptoms of Failure

• Regular Inspection: Spark plugs should be checked and replaced as part of regular maintenance.
• Symptoms of Failure:
  • Misfires
  • Poor fuel economy
  • Hard starting
  • Rough idling
  • Poor acceleration

Installation Tips

• Ensure the correct gap setting as specified by the vehicle manufacturer.
• Avoid overtightening to prevent damage to the threads.
• Use anti-seize compounds sparingly, if at all, as recommended by some manufacturers.

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