Will it affect if the car thermostat is not changed?

Yes. The thermostat must be kept in good working condition, otherwise it will seriously affect the normal operation of the engine. If the thermostat is opened too late or even cannot be opened, it will cause the engine to overheat; If it is turned on too early, the engine warm-up time will be prolonged, and the engine temperature will be too low.

The safe life of the wax thermostat is generally 50,000 km mileage, so it is required to be replaced regularly according to its safety life. The inspection method of the thermostat is to check the opening temperature, full opening temperature and lift of the main valve of the thermostat in the temperature adjustable constant heating equipment, and if one of them does not meet the standard value, the thermostat should be replaced.

For example, the thermostat of the Santana JV engine has an opening temperature of 87 plus or minus 2, a full open temperature of 102 plus or minus 3, and a full open lift of 7mm.

Thermostat is a switch part of the waterway, the main function is to control the flow of water into the engine, in the case of cold car, the thermostat is closed, the role is to reduce the amount of water entering the engine to become a small engine water flow ring, the purpose is to quickly let the engine enter the normal working temperature, reduce the hot car time and fuel consumption when the car is hot. The thermostat switch is mainly controlled by the thermal spring in the thermostat, when the water temperature reaches a certain temperature, the spring will be released, and more water can flow into the engine for heat dissipation. If you don't use temperature saving, it is okay not to use temperature saving, which means that the engine has been in a high-flow cooling state, but the fuel consumption will increase when the car is hot and hot in cold weather.

Regardless of hot car and fuel consumption, you can choose not to have a thermostat.

The thermostat, also known as the thermostat, is to automatically adjust the amount of water entering the radiator according to the temperature of the cooling water, change the circulation range of the water, adjust the heat dissipation capacity of the cooling system, and ensure that the engine works within the appropriate temperature range.

If it's not broken, it's gone, and if it's broken, there's no water temperature.

The function of the thermostat is to automatically adjust the amount of water entering the radiator according to the temperature of the cooling water, change the circulation range of the water, adjust the heat dissipation capacity of the cooling system, and ensure that the engine works within the appropriate temperature range. The thermostat must be kept in good technical condition, otherwise it will seriously affect the normal operation of the engine. If the main valve of the thermostat is opened too late, it will cause the engine to overheat; If the main valve is opened too early, the engine warm-up time will be prolonged, and the engine temperature will be too low.

The structure and working principle of the thermostat.

When the cooling temperature is lower than the specified value, the delicate paraffin in the thermostat temperature sensing body is solid, the thermostat valve closes the channel between the engine and the radiator under the action of the spring, and the coolant returns to the engine through the water pump for small circulation in the engine. When the coolant temperature reaches the specified value, the paraffin wax begins to melt and gradually becomes a liquid, increasing in volume and compressing the rubber tube to shrink. While the rubber tube shrinks, it acts on the push rod with an upward thrust, and the push rod has a downward reverse thrust on the valve to open the valve.

At this time, the coolant flows back to the engine through the radiator and thermostat valves, and then through the water pump, where it is circulated.

Most of the thermostats are arranged in the cylinder head outlet pipeline, which has the advantage of simple structure and easy to remove air bubbles in the cooling system; The disadvantage is that the thermostat often opens and closes when working, resulting in oscillation.

Yes, the engine cooling system thermostat is a device to control the water temperature, that is, to ensure that the engine dissipates heat while regulating and maintaining the temperature. If it is removed, the biggest damage is the low temperature of the engine, which will bring two disadvantages:

First, low engine temperature will accelerate wear;

Second, the low temperature of the engine will reduce the fuel efficiency of the engine.

Low temperature wear is due to the increase in the viscosity of the lubricating oil, can not reach the lubrication point quickly and effectively, at the same time, due to the action of low temperature, under the influence of thermal expansion and contraction, the relative moving parts of the engine shrinkage gap becomes larger, so that the impact force of the interaction becomes larger, these two points are the reasons for the low temperature accelerated wear. The low temperature of the engine will reduce the combustion efficiency, and when starting in winter, you will see smoke at the exhaust pipe, which is the phenomenon of poor combustion, in addition to the poor sealing caused by the excessive gap between the parts because of its poor combustion, there is also poor combustion caused by low temperature heat absorption. Therefore, removing the thermostat has an impact on the engine.

What is the function of car thermostats, and why do some cars mainly remove them? Today I know it.

Answering the thermostat is a serious mistake! The thermostat is not only to maintain the temperature, but more importantly, it is actually an important valve to switch the water cycle, and our engine cooling is divided into large cycles. Small loops and large loops are turned on at the same time.

The large circulation of dismantling the thermostat is that the water pump directly starts from the water channel and flows to the heat sink through the pipeline, and then it is pumped back by the water pump and then flows to the heat sink. The most important path is the water path through the engine block, which is very little due to the direct unblocking of the pump and the water tank! This means that only a small amount of heat dissipation water flows through the engine block!

In this way, the cylinder block will not be effectively dissipated and the temperature will be high! The small cycle is when the thermostat is turned off and the water channel flows directly between the pump and the engine block, without flowing through the heat sink. This maintains the temperature of the engine, which is important in the northern winters.

But the south is also important, because the normal operating temperature of the engine is 90 degrees, and removing the thermostat will make the operating temperature of the engine unable to maintain normal, which will increase fuel consumption and reduce power. The biggest and most important role of the thermostat is that it will make the size cycle of the engine turn on at the same time, and when the water temperature is high, the thermostat will turn on! Note that it is only opened, and its opening is limited, not the state of dismantling yes, so that the cooling water will flow to both the large circulation and the small circulation.

The water flows well through the engine block and towards the radiators. This is the most effective way to dissipate heat. After removing the thermostat, the large circulation of the waterway is unblocked, so it rarely flows to the small circulation!

In this way, we understand an important problem, that is, the thermostat also has the effect of reducing the flow rate of large circulation, so as to balance the flow rate of large and small circulation! Therefore, removing the thermostat is not conducive to heat dissipation, and the engine with the thermostat removed will not be hot in winter and high temperature in summer.

The vast majority of car owners only know that after the thermostat is removed, the water temperature will not be higher, but they do not know the harm that the thermostat will bring to the vehicle after the thermostat is removed: the engine is not installed with a thermostat, and in the summer due to the relatively high temperature, it will not have much impact on the engine itself.

Due to the relatively low temperature in winter, and the fact that the engine is not equipped with a thermostat and the water tank is always in a state of large circulation, the first and most obvious sign is that the heater in the car will come very, very slowly. Secondly, the engine works at low temperature for a long time, which will inevitably affect the fuel atomization effect and increase fuel consumption, and at the same time, it will also cause certain wear and tear to the engine running parts.

The function of the thermostat is to control the size of the antifreeze circulation between the engine and the water tank, when the temperature of the antifreeze is relatively low, the thermostat is in a closed state, at this time only the antifreeze in the engine is heating up, so it is called: small circulation. When the antifreeze in the engine rises to a certain temperature, the thermostat will automatically open to form an intercommunication with the water tank

The Great Cycle. When the thermostat is not opened, because the antifreeze inside the engine can not be circulated, the temperature rises relatively quickly, and the main purpose of the engine installation thermostat is to make the engine reach the best working condition as soon as possible, reduce engine wear, improve the fuel atomization effect, and at the same time can improve the heating speed of the warm air in the car.

If the carThermostatsIf it is broken, then the most obvious symptoms will manifest itself in the water temperature gauge, the main valve of the thermostat opens too late or too early, and if it is opened too late, it will cause the engine to overheat.

If it is turned on too early, the engine will be warmed up for a longer time, and the temperature of the engine will be too low, which will affect the efficiency. To put it simply, if you see that the engine water temperature is too high or too low from the water temperature gauge, then it is possible that the thermostat is faulty.

Thermostat precautions.

It should be noted that the vent hole on the thermostat cannot be glued under normal circumstances. According to many years of experience, the reliability of the effect of applying glue in the cold winter of our northern cold group has been improved. The premise is that the cylinder gasket can not be gas-blocked, which will cause air blockage, and the thermostat is not easy to open after high temperature (whether to block this exhaust hole is selected according to your own situation, and the 99 car is no problem).

If you choose to plug the vent hole, it is better to put antifreeze.

OK. However, it is not possible to replace or remove the thermostat at will (especially non-professional operation), blindly remove the thermostat due to the high engine temperature, the coolant can only be circulated for a large time, and the cooling intensity can not be adjusted, and it is difficult to ensure that the engine works at a more suitable temperature, but the engine is often in a low temperature state, resulting in a decrease in engine power, accelerated wear and tear, and an increase in fuel consumption.

If the engine temperature is still high after the engine thermostat has been faulted or replaced, the other parts of the cooling system should be overhauled and the thermostat should not be removed. Some people think that the engine temperature is not afraid of high or low when driving. In fact, when the engine temperature is low, it is also very harmful.

The service life of the engine should be ensured by driving at the normal temperature specified in the car's instruction manual.