At present, most diesel engines use paraffin wax thermostat with stable working performance. When the cooling water temperature lower than 83 DEG C, the thermostat valve is closed, the cooling water can only be circulating in the diesel engine without water tank circulation, accelerate the rise of cooling water temperature, shorten the warm-up time, reducing the running time of the diesel engine at low temperature.

When the coolant temperature reaches the thermostat valve opening temperature of 83 DEG C, increased gradually with the temperature of the diesel engine, the thermostat valve gradually opened, more and more large in the cooling liquid circulation cooling, cooling capacity is also growing.

Once the temperature reaches or exceeds the main valve open temperature 95 C, the main valve is fully open, and the Deputy valve just all closed circulation channel, then the cooling capacity to maximize, so as to ensure the operation of the engine in the optimum temperature range.

If the engine temperature is too high, how to cool down the machine? Today, we talk about, thermostat in the end can not be demolished?

Found in the diesel engine when the water temperature is too high, not carefully check whether there is a cooling system of a diesel engine diesel engine water temperature to the thermostat water tank is damaged, such as too much scale due to too high, but from the sense that the thermostat is a hindrance to the circulation of cooling water.

What will happen if the thermostat is taken because the water temperature is high?

1, fuel consumption is too high

After the thermostat is removed, the large cycle takes the lead, and the engine emits more heat, resulting in waste of more fuel. Baotou North run heavy truck parts engine running below normal operating temperature for a long time, fuel combustion is inadequate, more fuel consumption.

2, oil consumption increased

Engine lower than the normal working temperature for a long time, will lead to incomplete combustion of the engine, more carbon black into the engine oil, thickening of the oil viscosity, oil sludge increased.

At the same time, the water vapor produced by combustion easily condenses with acid gas, and the weak acid is produced to neutralize the oil and increase the oil consumption. At the same time, the diesel atomization in the cylinder is bad, and the atomized diesel oil washes off the oil on the cylinder wall, resulting in the dilution of the oil and the wear of the cylinder liner and piston ring.

3, shorten engine life

As the temperature is low and the oil viscosity is great, the lubrication of the diesel friction parts can not be satisfied in time, and the wear of the diesel engine parts is increased, and the power of the engine is reduced. The water vapor produced by combustion easily condenses with acid gas, which aggravates the corrosion of the engine and shortens the life of the engine in Baotou.

To remove the thermostat, there is really no harm!

When the water temperature of the diesel engine is found to be too high, if the cooling water is not missing, the water level inside the water tank is turned over, and the water pump is working properly:

Remove the thermostat from the machine, add 82 ~ 85 DEG C hot water thermostat, if not open more than 1mm, indicating the thermostat failure; if add 95 ~ 100 Deg. C water, after a few minutes out, if the thermostat main valve fully open, the thermostat is working properly otherwise, the thermostat failure.

When it is judged that the thermostat failure, should be replaced with new thermostat in time, otherwise it will make the diesel engine for a long time at low temperature (or high temperature) under the condition of operation, which caused the engine abnormal wear or overheating and malignant accidents.

Replaced by the Baotou North run heavy truck parts, new thermostat, after passing the quality inspection, can be installed, do not install thermostat, so that the diesel engine is often operating at a low temperature.