The Jinbei Sea Lion Thermostat is located at the joint on the left side of the engine, as shown in the figure. Thermostat is a valve that controls the flow path of coolant. It is an automatic temperature regulating device, which usually includes a temperature sensing element, which opens and closes the flow of air, gas or liquid through thermal expansion or contraction.
The working principle of the thermostat is to automatically adjust the amount of water entering the radiator according to the temperature of cooling water, and change the circulating range of water, so as to adjust the cooling capacity of the cooling system and ensure the engine to work in a suitable temperature range.
The thermostat must be kept in good technical condition, otherwise it will seriously affect the normal work of the engine. If the thermostat main valve is opened too late, it will lead to overheating of the engine; If the main valve is opened too early, the engine warm-up time will be prolonged and the engine temperature will be too low.
Extended data
If the water temperature can't come up after driving for a long time in winter, it's because the thermostat has been on, or the thermostat has been on too early.
The engine temperature does not rise or the heating rate is slow, and the warm air is not hot. This problem is more common. Most of them will show that the water temperature rises when there is traffic jam or red light, and the temperature drops rapidly when the car is driving. The main reason for this situation is the failure of the thermostat, which always keeps a large circulation state and is improved immediately after replacing the thermostat.
When the engine is cold-started, if the engine fails to idle quickly or the speed is unstable, the existing failure causes generally include: engine mechanical failure, intake system failure, such as air leakage in the intake pipe, etc. Excessive carbon deposition on the back of intake valve and intake pipe; Engine management system failure, such as incorrect water temperature and intake air temperature signals, line failure, etc. Faults in the oil supply system, such as excessive colloidal carbon deposition in the fuel injector, lead to the fuel injector not being closed tightly or blocked.
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