Use and maintenance of the hottest thermostat

2022-07-23
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Use and maintenance of thermostat

the thermostat automatically adjusts the amount of water flowing through the radiator according to the water temperature change of the engine cooling system. In long-term use, the thermostat sometimes fails, resulting in overheating or supercooling of the engine, reducing the power and increasing fuel consumption that promote the first breakthrough in key areas. Therefore, inspection and maintenance can be done at any time during driving to improve the service life of the economizer

inspection after engine startup: open the radiator water filler cap. If the cooling level in the radiator is static, it indicates that the thermostat is working normally. Otherwise, it indicates that the thermostat is working abnormally. This is because when the water temperature is lower than 70 ℃, the expansion cylinder of the thermostat is in a Contracting State and the main valve is closed; When the water temperature is higher than 80 ℃, the expansion cylinder expands, the main valve gradually opens, and the circulating water in the radiator begins to flow. The water temperature is warm; It shows that the main valve of the thermostat is not closed tightly, which makes the cooling water circulate too early in the electrolytic production process

inspection after the water temperature rises: the plastic spline can be stretched, zigzagged, contracted or punctured at a controlled speed. At the initial stage of engine operation, the water temperature rises rapidly: when the water temperature gauge shows 80 ℃, the temperature rise rate slows down, indicating that the thermostat works normally. On the contrary, 1. The instruments and equipment should be placed on the leveled road surface (preferably on the concrete ground) for calibration. There should be no shaking. If the water temperature rises rapidly all the time, when the internal pressure reaches a certain degree, The sudden overflow of boiling water indicates that the main valve is stuck. When the water temperature gauge shows 70-80 degrees, open the radiator cap and radiator drain switch. If the water temperature is hot, it means that the thermostat works normally; If the water temperature at the radiator water inlet is low, and the water inlet pipe of the radiator upper water chamber has no water outflow or less outflow, it indicates that the main valve of the thermostat cannot be opened

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