How to deal with common problems in spark plugs

Skill plugs with excellent performance can improve the power performance of the vehicle. When maintaining the car, you should pay more attention to the status of the spark plug.

Under normal circumstances, the service life of spark plugs is 15,000 kilometers, and the service life of long -term spark plugs does not exceed 30,000 kilometers. However, the spark plugs of many car owners often have such problems, and they cannot reach their normal service life.

Spark plug deflation

When the owner finds that there are scars or damage at the top of the spark plug, and the electrode is melting and abruptly, it indicates that the spark plug has been destroyed. At this time The spark plug should be replaced. During the replacement process, the owner can check the symptoms and color changes of spark plug. This phenomenon shows that the temperature of the burning room is too high. This may be caused by too much carbon accumulation indoor in the burning room, which causes too small between the valve, which further causes the exhaust valve to overheat or the cooling device is not working. When the spark plugs are not tightened according to the prescribed torque, the electrode is melted, and the insulator is white. Generally speaking, burst burning is the main cause of insulating rupture. The premature ignition time, low gasoline value, and too high indoor temperature in the burning room may cause engine burst and burning.

There are sediments on the spark plug

The top and electrodes of the spark plug insulator sometimes stick to the sediment. The owner should not underestimate this sediment. In severe cases, this situation may cause the engine to work normally. After cleaning the spark plug, the vehicle can temporarily operate, but similar situations will occur soon. In fact, there is only a superficial phenomenon in the spark plug, which may be a signal of a problem with other components in the vehicle. When an oily sediment appears on the spark plug, it indicates that lubricating oil has entered the burning room. If it is only an oily sediment on individual spark plugs, it may be caused by the damage of the valve lever oil seal. If the spark plug electrodes and black sediments inside, the mixed gas in the cylinder is usually too strong. The owner can increase the engine operation speed and last for several minutes to burn a layer of black cigarette layer left on the electrode.

Source: Shenzhen SAR News