What are the consequences of changing the calorific value of the spark plug from 6 to 8?Can spark plug calorific value 7 and 8 be common?

Changing the calorific value of the spark plug from 6 to 8 means that the calorific value increases. The stronger the balance of heat absorption and heat dissipation of the spark plug insulator skirt, the faster the spark plug releases heat from the combustion chamber, and the faster the spark plug cooling rate.

Therefore, the result of changing the calorific value of the spark plug from 6 to 8 is that the ignition head is prone to carbon deposits, causing electricity to run, and the spark plug cannot jump out of the fire; resulting in a decrease in power, an increase in fuel consumption, and even serious damage to the spark plug. And then damage the engine.

Although the calorific value of the spark plugs 7 and 8 are of high calorific value type, there is a difference of one level, and their performance is also different. The greater the balance between heat absorption and heat dissipation of the spark plug insulator skirt with a calorific value of 8, the higher the rate at which the spark plug releases heat from the combustion chamber, and the lower the working temperature of the spark plug.

If the original calorific value of 7 is changed to 8, it may easily cause carbon deposits, resulting in a decrease in power and fuel consumption. If the original calorific value of 8 is changed to 7, the phenomenon of insufficient combustion of the oil and gas mixture may occur. Feeling of lack of power, or even insufficient heat dissipation, will cause the spark plug temperature to be too high, which will further cause deflagration and other phenomena.

Therefore, it is best not to use the spark plug calorific value 7 and 8 in common. Although the replacement principle is based on the original spark plug calorific value, it is controlled within the next level. The replacement of the calorific value 7 and 8 is in line with the replacement principle, but more It will be affected to some extent, unless it is allowed to be replaced after being judged by professionals.