When the cooling water temperature up to 100 DEG C, if the expansion tank of air steam valve as boiled water as there are a lot of steam coming out of touch, the expansion tank or water tank, the hand is very hot, the driver is usually called the engine tank boil”.
The tank “boil”, should be according to the following method to find the cause of “boil” reason:
(1) check the coolant level, insufficient should be added.
(2) check the Baotou North Benz accessories thermostat failure, if failure, it should replace thermostat.
(3) check the fuel injection time is too late. Injection time is too late, after burning increases, so that the cooling water temperature increases, often accompanied by difficult start, exhaust black smoke, engine weakness and other phenomena. If injection time too late, should re adjust the injection time to the specified value.
(4) check Baotou Benz parts water pump belt tightness. Pump tensioner loose, resulting in loose belt, water pump speed is slow, water flow is small, high water temperature, adjust the belt tension can be.
(5) check the cooling water tank (cooler) heat sink is sludge, leaves and other debris jam. If the plug, will make the heat exchange capacity in reduced, resulting in high temperature water, clean the water tank radiator available pressure is not high.
(6) check the fan cover, supporting wind are broken. Breakage will reduce the volume of water through the cooling tank, causing too high water temperature, must be replaced or repaired.
(7) check whether the tank is jamming. Especially the vehicle suspended a few days later, again, found that the high temperature is the most out of this fault. Because the rest for several days, scale, impurities in cooling water are deposited on the bottom of the tank, causing blockage or poor flow channel. With pressure water or water tank cleaning fluid to clean water.
(8) some users to pass into the heater pipe without air blower, directly to the water pump inlet pipe joint, the cooling water circuit, caused by high temperature. Therefore, should pay attention to the correct connection.
(9) for cars, wear and water pump belt scale, the pump should also check the Baotou Benz parts of engine cylinder head and the cylinder of the elastic. If there is abnormal, need to clear the scale or replacement of water pump and water pump belt.
(10) long time overload, overload, low speed and high torque operation, also temperature caused by “boil” phenomenon.