十种错误的汽车保养方法（Ten wrong ways to maintain the car）

十种错误的汽车保养方法（Ten wrong ways to maintain the car） 十种错误的汽车保养方法(Ten wrong ways to maintain the car) Ten kinds of car maintenance method wrong.Txt25 love is a lamp, the darkness of walking distance; love is a poem, a cold heart warm.; love is the wind in summer, is the sun in winter, is the spring rain, autumn fruit. Now more and more private car owners, we all hope that their car opened for a long time, reducing the cost of maintenance. To do this, you must learn to conserve your car scientifically. However, there are often problems in car maintenance. Automobile maintenance experts said, some people thought is in the car maintenance, but in fact it is self defeating damaged car. Look at the following 10 kinds of wrong maintenance method, you have to check the number, if wear! 1. sun wash - hurt the car paint Many private car owners love the car in the sun, it will soon after washing the body of water to dry in the sun. But do wrong, the car in the sun, the water formed by the convex lens effect will make the top to produce local high temperature phenomenon of paint, a long time, the paint will lose luster. If at this time also easy to cause the body waxing, uneven color. Therefore, the best way to wash the car under the condition of shading, if not guaranteed, it is best to choose cloudy or sunny morning and evening. 2. washing the car is like taking a bath - it's killing the air conditioner Encountered weather, temperature rise, dust increases, the body is easy to dirty, the owner of the car wash frequency also began to rise, many owners in the car wash also want to give himself a bath as thoroughly. But here should pay attention to, must keep the air conditioning appearance of dry, if the car air conditioning is not careful to be wet, will affect the car air conditioning life. 3. circles waxing - poor effect A lot of people wax their bodies and are used to doing it in circles. That's not the right way. The correct way is waxing in a straight line, horizontal and vertical lines alternately, according to the water flow in the direction of the last one, so as to reduce concentric circles the car paint surface effect. 4. too much oil - out of order When the engine oil pan of oil shortage, bearing and shaft neck friction due to oil less lubrication, aggravate the wear degree, even cause the burning bearing accident. However, if too much oil, the engine crank handle at work, the connecting rod will produce violent agitation, not only increases the power loss inside the engine, but also make a splash onto the wall of oil increases, resulting in burning oil discharge fault. Therefore, the engine oil sump oil should be controlled between the oil foot and under the line for good. 5. bolts tight - permanent deformation Bolt, fastening nut connecting pieces on many cars, should ensure enough pre tightening force, but also can not be overdone. If overdone, one hand will make connections under the action of external force to produce permanent deformation; on the other hand will make bolt produce tensile permanent deformation, but the pretightening force drop, even cause slipping or breaking phenomenon. 6. the fan belt is too tight the bearing is heavy Some drivers think that improve the fan belt tension, can improve the engine cooling effect, therefore a lot of improve the fan belt tension, causing the fan belt is too tight, not knowing that it is wrong. The fan belt should maintain proper tightness, because too tight will make the bearing load is too large, wear, power consumption the increase, but also make the water pump shaft bending, belt stretching deformation, shorten the life of. 7. imported tyres - not applicable Some people like to buy tires, emphasis on "imports", but the push of new tires abroad, for domestic users, there is one of the most fatal flaw is not applicable. The flat pavement is quite different with the domestic conditions for Europe road tyres at home is difficult to have a good performance, especially the impact of side is obviously a bit like Italy famous The climate does not suit one., wearing leather shoes walking gravel, the side of the tire from the package are inevitable. Some foreign brands tire after joint venture in china, According to the domestic road condition, a layer of tyre fabric is added to the side of the tire, thereby greatly improving the shock resistance of the sidewall, and the joint produced tyres can completely replace the imported goods in terms of performance. 8. new batteries do not charge - shorten life The initial charge of the battery is called the initial charge, and the initial charge has a great influence on the service life of the battery. If not charged, plus "water" direct use, the battery capacity is not high, life will be shortened; if direct charging, will shorten the life. Usually, the initial charge of the battery is after charging the electrolyte, charging with a small current can be installed about 1 hours or so. 9. cooling water temperature is too low - wear the engine When the weather is hot, some drivers in order to prevent the engine temperature is too high, demanding the cooling water temperature as low as possible; some drivers in order to achieve the purpose of cooling, simply remove the thermostat, these practices are wrong. The automobile engine is both afraid of heat and cold, and if the cooling water temperature is too low, it will worsen the fuel combustion, increase oil consumption, aggravate wear, increase engine oil viscosity and reduce engine power. Tests show that when the cooling water temperature is 40-50 degrees Celsius, the engine wear increases by 60%-80%, the power is reduced by 25%, and the fuel consumption is increased by 8%-10%. Therefore, the temperature of the engine cooling water is not the lower the better, generally should be controlled at between 80-90 degrees celsius. 10. tank boil water - cylinder cracking speed Some drivers saw the tank "boil" phenomenon, to reduce the engine temperature, immediately turn off the water. This is wrong, and it is extremely likely to cause a crack in the cylinder head due to sudden cold. See if the tank "boil", generally the correct way is: stop immediately, keep the engine speed. When the cooling water temperature is lowered, then the engine will stall. If the cooling water shortage, slowly add, to prevent the cylinder cover due to a sudden cold and cracking