People in the car repair and there are some false belief, these false belief is the formation of long-term low level of automobile manufacturing, repair means backward, the lack of testing means in the age of. These false belief sometimes seems right, in fact, has great harm, causes the vehicle damage, personal safety is threatened, and the greater likelihood is thus laid the hidden dangers of accidents, or cause the decrease of vehicle performance, wear speed,shorten the life etc..

1, the blind down engine thermostat

If the engine temperature is high and the blind demolition of the thermostat, coolant can proceed big circulation, can adjust the cooling intensity, it is difficult to ensure the engine working at asuitable temperature, but the engine is often in low temperature condition, resulting in reduction of engine power, speed up wear, increased fuel consumption. If the engine thermostat fails to repair or replace, the engine temperature is higher, it should be the other parts of maintenanceof the cooling system, the thermostat can not be removed.

2, if the engine temperature is high not low

Some people think that driving the engine temperature is high not low fear. In fact, the engine temperature is low is also a great harm. According to the normal temperature of the automobiledriving manual provisions, in order to ensure the service life of the engine.

3, pump and fan belt tightening the better

Belt tightening is not better. The belt is too tight will not only make the elongated or fracture,shorten the service life of the belt, but also because tension is too large, resulting in the early damage of the generator shaft, shaft bending deformation and bearing. Engine fan belt tightness should meet the technical requirements, the normal deflection when the belt assemblyis appropriate for the 10-15mm.

In 4, the engine idle temperature

With the idle temperature, due to the low speed, the oil pump can not quickly the lubricating oil into the lubricating oil pressure is low, the surface, the movement of engine parts under dry friction or semi dry friction condition; low temperature fuel due to poor atomization, the unburnedfuel into the crankcase, wash away the oil film wall on, will accelerate the wear parts. So, start the engine after a few seconds, the application of fast idle temperature, improve the lubrication condition of the engine.

5, burner for baking oil bottom

Winter burner for baking oil bottom, will not only make the additives in the oil and chemical changes, loss of the original performance, but also the oil cement, oil bottom deformation, easy to cause fire. The best approach is based on the minimum temperature in winter oil suitable for use. In some places, the best vehicle park in heat preservation facilities in the garage.

Removal method is more advanced ultrasonic spray method and the removal of nuclearclearance method, but the most used, the simplest way is the physical removal and chemical removal method. The two methods can also be combined.