Spark plug commonly known as fire mouth, its role is to put the high voltage wires (fire mouth line) from the high voltage pulse discharge and breakdown the spark plug the air between two electrodes, produce electric spark to ignite the gas mixture in the cylinder. Main types are: the accurate type spark plugs, the flange body outstanding type spark plug, electrode spark plug, spark plug, a spark plugs, face the fire spark plugs, etc.

Overhaul

In the usual maintenance process, should pay attention to the working condition of spark plugs, such as in the following situations, should be for repair or replacement.

When to have a black charcoal, with the scraping the attachments such as fine wire, if easy to scrape off, show that, when burned, attachments for mixture mixing, so after cleaning, the performance of the spark plug will return.

And blackened by attached to carbon is the cause of mixture too thick or oil jumped to within the cylinder. Therefore, to deal with these situations for inspection. If there are no causes of the abnormal condition, but still spark plug have the phenomenon of blackened, shows it is due to improper vehicle use condition and spark plug calorific value. Should be replaced immediately for suitable calorific value of the spark plug.

A dark and wet state. Occur moisture is probably the cause of: due to the choke use frequency is too high, cause inhaled the mixture of too thick too much; Because of the suction air filter cartridge jam for the mixture of too thick; Or the high calorific value of the spark plug. If due to excessive intake too thick mixture, then make the spark plug is dry, its performance can be restored. Insulators with electrode burning white or local travel, this is because the electrode area overheating phenomenon. The reason is because the cooling system is not normal, mixture is too thin. If no above normal and still overheating phenomenon, is due to improper driving conditions and spark plug heat value, should be replaced immediately to high calorific value of the spark plug. With a feeler gauge to check the spark plug of the gap between the center of the electrode and the grounding electrode, deviates from the specified value, should be adjusted.

The spark plug leakage are mostly due to poor insulation shell and seal. Insulation between the shell and a flat, usually in the insulator surface along the direction of leak appears black stripes, spark plug leakage not only affects the sealing of cylinder, also easy to cause the spark plug is overheating, but also can produce carbon deposit along the flat parts, reduce the insulation performance of the insulators. Spark plug leak, should be replaced in a timely manner.

What is the relationship between the spark plug with fuel consumption?

Whether need to replace spark plug not tear open come down to check to know, look at the color of the burning, electrode gap, porcelain body and metal shell of the gap is a flat and so on. Spark plug ignition strength of gasoline combustion completely or not plays a critical role. After the engine spark plug has been "working" under the environment of high temperature inside the cylinder, the long time of ablation and carbon deposition can make two of the spark plug electrode ablation, extend the spark plug electrode gap, thus affecting the spark plug type spark intensity, the decrease of strength of spark plug, the fuel consumption will increase. Therefore, the general spark plug you need to use two, thirty thousand km after the replacement. After a series of communication to understand, I finally bought a double platinum spark plugs and a single platinum spark plugs, decided to see if replace spark plugs can reduce fuel consumption.

Car was bought 06 years, had not changed in the spark plug and ignition is a successful, ran for more than 60000 km, there has been no attention to replace spark plug; And when to Qingdao, just to keep a record of km and oil from guangzhou to Qingdao we went almost 900 km journey, to Qingdao when consumed $380 the amount of oil on the road, because of this series, I decided to test was carried out on the double platinum; In 18, after the exhibition, a gold car information network staff decided to immediately return;

We put the spark plug in new, and made a record, the oil after the original road to return to Guangzhou, found only in the oil amount of 300 yuan. After testing found that changed after the spark plug can reduce 10% of the fuel consumption; A group of good spark plug also earn a lot of power; Can also increase the service life of the spark plug, so I suggest that the drivers, when your car run enough mileage and a fixed number of year, best can spark plug replacement

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