thermostat automatically adjusts the amount of water entering the radiator according to the temperature of cooling water and changes the circulation range of water to adjust the heat dissipation capacity of the cooling system and ensure that the engine works within a proper temperature range. The thermostat must be kept in good technical condition, otherwise it will seriously affect the normal operation of the engine. If the thermostat main valve is opened too late, it will cause engine overheating; If the main valve is opened too early, the engine preheating time will be prolonged and the engine temperature will be too low.
All in all, the thermostat's purpose is to keep the engine from getting too cold. For example, after the engine is working properly, the engine may be too cold at winter speed without a thermostat. At this point, the engine needs to temporarily stop the water circulation to ensure that the engine temperature is not too low
