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Analysis on the blockage of the vent pipe of the expansion tank

(Summary description)When the engine was cold at the beginning, when antifreeze was added, the gas in the empty engine water jacket and the radiator could not be discharged immediately due to the blockage of the breather pipe

Analysis on the blockage of the vent pipe of the expansion tank

(Summary description)When the engine was cold at the beginning, when antifreeze was added, the gas in the empty engine water jacket and the radiator could not be discharged immediately due to the blockage of the breather pipe

Information

When the engine was cold at the beginning, when antifreeze was added, the gas in the empty engine water jacket and the radiator could not be discharged immediately due to the blockage of the breather pipe, so the antifreeze could not fill the entire system. The antifreeze in the expansion tank seems to be full, but in fact the engine water jacket and radiator are in a half-empty state, which causes the antifreeze to not circulate normally, the temperature of the engine rises rapidly, and the cooling system often occurs& ldquo. Open the pot & rdquo and spray water, but not much antifreeze.

Secondly, although the engine has been filled with antifreeze, in use, due to the blockage of the exhaust pipe, especially when the exhaust pipe connected to the front of the engine thermostat is blocked, during the engine operation process, with the antifreeze The gradual increase in temperature will create a little steam. If the vapor collects above the radiator, it will hinder the flow of antifreeze and affect the cooling effect. If these vapors collect in front of the thermostat, the thermostat will separate from the antifreeze and the main valve of the thermostat will not open immediately as the temperature of the antifreeze increases. The large circulation of antifreeze caused by the development and change of air resistance cannot be effectively completed, so the engine often has the phenomenon of excessive temperature. The accumulation of steam also squeezes out the antifreeze, which, through development, becomes an overflow condition for the expansion tank.

Car expansion tank plays an irreplaceable role in our car. Of course, its real-time dynamics also require us to pay close attention. For example, the blockage of the expansion tank exhaust pipe, especially the blockage of the exhaust pipe connected to the front of the engine thermostat, will seriously affect the normal operation of the cooling system. However, the key to the blockage of the expansion tank exhaust pipe is to check the exhaust pipe frequently during car maintenance to avoid blockage. The connecting hose should be smooth, without bending and damage, and the inner hole of the vent pipe joint should be free of impurities. Moderately thickening the vent pipe and vent pipe joint is also an effective way to avoid blockage of the vent pipe.
 

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