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Do you gap Denso Iridium spark plugs?

Iridium Power Gapping Tips In most cases your Iridium Power plugs do not need to be gapped. Even with small variations in the factory set gap the ultra-efficient firing power design will compensate for those small variations.

What does heat range mean on a spark plug?

Spark plug heat dispersal The degree to which a spark plug disperses the heat it receives is called its “heat range”. Spark plugs with a high degree of heat dispersal are called high heat range (cold type) and those with a low degree of heat dispersal are called low heat range (hot type).

How much do spark plugs weigh?

The plug weighs 10.7 grams.

Are there fake Denso Spark plugs?

All DENSO Spark Plugs are manufactured in Japan, Indonesia, China and USA. If a part claims to be a DENSO component but has been manufactured outside of these areas, then it is not genuine. Counterfeit spark plugs may also have subtle differences in the logo placement.

How many times can you gap spark plugs?

The spark plug gap adjustment should not be changed more than 3 times and should not exceed . 008″ in either direction. Excessive changing of the spark plug gap setting will result in weakening of the spark plug ground electrode and can lead to breakage. Also, the spark plug gap should never exceed .

Is a hotter spark plug better?

A “hot” spark plug has a longer insulator that prevents heat transfer into the water jackets. It keeps more heat in the tip of the spark plug, which helps burn off combustion chamber deposits. But if there’s too much retained heat, the engine will experience preignition.

How can you tell a fake spark plug?

How do I identify fake spark plugs?

  1. Inspect font type and signs of smudges on the spark plug.
  2. Look out for a machine cutting mark on the caulking (could indicate a counterfeit)
  3. Check the hexagon for a LOT number and the correct font type.
  4. The C-groove portion show machine cutting marks (could indicate a counterfeit)

What spark plugs do racers use?

For many years NGK Spark Plugs has been firing racing engines throughout the world. NGK Spark Plugs has become an icon in spark plug technology and we pride ourselves in offering racers a high quality product that will help rocket them to victory.