Family Cars Information

Tanks Kai Guo, water temperature high, how do

The summer season, the weather became increasingly hot and up and higher temperatures caused many cars in the other seasons have become infrequent failures often together. Kai Guo tank water temperature is high during the summer often encounter trouble. We can often see a vehicle on the roadside due to the water temperature is too high and was forced to stop at the roadside, “Xie Liang” embarrassment. If you encounter such a situation, how would you do?

1, water temperature increased, but there is no steam or coolant overflow from the tank

This situation is generally caused due to traffic overload the engine at this time should be closed air-conditioning, reducing the load on the engine. If the driving gear should be torn down will be the highest gear to reduce engine speed. In addition, electronic fan failure, the engine too lean mixture, ignition time of late, clutch slip and car traffic will be there a long time the wind temperature is too high. To avoid this phenomenon, the owner who in peacetime should note the following points:

Cooling system to maintain external and internal cleaning. This is an important condition for improving thermal efficiency is one. Radiator external stained soil, grease or heat sink due to the collision deformation will affect the adoption of wind, radiator cooling effect of variation, resulting in coolant temperature is too high. Therefore, this situation should be promptly radiator cleaned or repaired. In addition, the cooling system inside the product there is scale, silt, or when the oil will affect the cooling of the heat transfer fluid. Filling the cooling fluid or poor-quality water, will result in an increase in cooling system fouling, while the scale of the heat transfer capability is only a few one-tenth of the metal, thus the cooling effect of variation. Therefore, high-quality cooling system should be filling the cooling fluid.

Modern automotive engines have adopted a closed cooling system, radiator cap is sealed, and added an expansion tank. Engine work, the cooling liquid vapor into the expansion tank, the cooling then flow back into radiator coolant to prevent a large number of evaporation losses, and increase the boiling point of coolant temperature. So cooling system should be used with anti-corrosion, anti-boiled, antifreeze and water coolant quality scale, and must ensure that the use of sealed, and to maintain an adequate amount of cooling fluid. When the engine is cold, the liquid coolant expansion tank should be at the highest and lowest marks between. If the liquid level below the minimum mark expansion tank should be added in time. It should be noted that within the coolant expansion tank can not be added too full.

Fan belt tensioning force to maintain a moderate. Leave room for expansion, the only way to receive the desired effects. The fan belt too loose, so that pump speed slowly, affecting the cooling fluid circulation, and will accelerate belt wear and tear. But the belt tight, then it would pump bearing wear. In addition, the belt can not be stained with oil. Therefore, we should regularly examine and adjust the fan belt tensioning force. Inspection, with the thumb pressing the central belt, the force of about 98N. If the belt deflection is about 10-15mm, that the fan belt tension force fit. Otherwise, it should be given to adjust. Adjustment, you can move generator positioning bolt position to change the belt tensioning force. If the replacement of the fan belt tensioning force detection, the belt deflection is about 8-10mm.
2, cooling fluid or vapor from the tank lid port or vice-boiling water tank overflow

This situation is usually caused by a cooling system failure, the most common reason is the lack of cooling water, when faced with it should first stop, but it should not turn off the ignition switch, let the engine continue to operate, using fan cooling, until the engine cooling and then turn off the ignition switch, radiator cap with a cloth cover, slowly open it, as far as possible the body and head away from the engine to prevent hot water burns people smoke. Such as lack of cooling water, add cooling water, cooling water should try to use soft water, it is best not to use well water hard water, preventing the formation of scale in the cooling system affect the cooling. After further examination of the other.

Check engine drive belts, whether or obvious broken loose, check the radiator or cooling system is leaking, if sub-tank coolant pipes are inadequate or minor leakage should be added to the standard liquid coolant.

Check the cooling system scale conditions, according to the amount of attendant handbook clearly states that join the cooling water, if there is illustrated in the remainder of the cooling water volume has been dominated by scale, scale will greatly reduce the excessive engine cooling efficiency, this time scale should be added to cleaning agents Clear scale after adding coolant.

Start the engine, check the cooling fan is working properly, if a fault should be repaired.

Check the thermostat, open the radiator cap to observe the surface of the water, such as the surface of the water at low temperatures are rolling phenomenon indicates that thermostat stuck in the half-open state; if the engine overheated, the water remained calm, that thermostat completely stuck in the closed state, while the only a small cycles condition. If the radiator will obviously feel the touch at this time temperature is lower than the body temperature, this situation shows thermostat fails completely. At this point the absence of spare parts, thermostat can be temporarily removed, and continued its journey after the blocked pipe small cycles reach their destinations immediately after the repair.

Check the radiator, if access to the main burst, can be painted on the cloth with soap, lashing at the leaks, played the role of Stop-leak. If you place out water aging, Au deflated, affecting access to water flow that can be used as ring-shaped wire stretching around the pipe to support. If the water tank connecting pipe rupture shall be promptly replaced. If a minor radiator leak plugging can be coated with soap, if the leak large, can be plugged drain holes of cotton yarn, you can also use chemical agents plugging plugging.