What are the three major parts of the spark plug?

What are three 3 characteristics that affect the performance of spark plugs?

The three factors with particularly large impact are the spark plug gap, the compression pressure, and the air-fuel mixture temperature.

What is the main function of a spark plug explain its various parts through a diagram?

Spark plugs have an insulated center electrode connected by a heavily insulated wire to an ignition coil or magneto circuit on the outside, forming, with a grounded terminal on the base of the plug, a spark gap inside the cylinder. The spark plug has two primary functions: (1) To ignite the air/fuel mixture.

What happens if you use a hotter spark plug?

The insulator nose of a hotter spark plug has a longer distance between the firing tip of the insulator and the point where insulator meets the metal shell. Therefore, the path for the dissipation of heat from the insulator nose to the cylinder head is longer and the firing end stays hotter.

Which is better iridium or platinum spark plug?

Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.

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Which is better copper or iridium spark plugs?

Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity.