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This car is equipped with Shangchai SC28R150Q6 (commonly known as Shangchai 492) in-line four-cylinder engine, with a maximum power of 110kW (150 horsepower), displacement of 776L, and a peak torque of 400N.m , the maximum torque output speed is 1500-2400rpm, which meets the national six emission standards and keeps pace with the times.

The d25 engine in the cloud is a 492 engine, with a cylinder diameter of 92mm and a stroke of 94mm. The displacement is not large, which is 499L. It adopts supercharged cooling, double overhead camshaft, electronically controlled high-voltage common rail and other technologies, and the compression ratio is 16:1.

Beinei 492 engine and 492Q engine are both from the internal combustion engine factory in northern China.Diesel engines, but they have some differences: different emission standards: the Beinei 492 engine meets the national second emission standard, while the 492Q engine meets the national third emission standard, so there are differences in environmental protection performance.

The domestic 492Q engine is a product manufactured in China in the 1960s with reference to the Soviet Volga sedan engine. The cylinder diameter and stroke of both engines are 92×92mm. There is not much difference in the size of the piston and the piston pin. The valve boom, putter, rocker arm and rocker arm shaft, valve spring, etc. can be used instead.

YZ represents Yangzhou diesel engine, 492 represents 4-cylinder, and the diameter of each cylinder is 92MM. Yangchai's existing products include five series of diesel engines, including 48490 and 4104104108, with a displacement of 0 to 0L and a power coverage of 50-150 horsepower, which can provide power for light trucks and light buses.

Why is the Yuchai 492 engine still high temperature after replacing the water tank pump?

1. The second is to increase fuel consumption and increase your financial burden. Third, it is difficult to start cold, that is, it is difficult to ignite, and it is not easy to start the car. Finally, if the combustion chamber accumulates carbon heavily, it will also cause cylinder explosion. There is a noise in low speed acceleration, causing damage to the piston and crankshaft, causing high temperature in the engine, which seriously affecting the safety of the car.

2. Hello, according to your description, there is no problem with the water pump. The thermoster is disassembled, but the water temperature is still high. It is necessary to check whether the cooling fan is normal, whether the engine cylinder pad is damaged, etc. The problem must be due to these two reasons.

3. In fact, we can use our hands.Touch the two thick glue pipes above and below the water tank to see if there is a significant temperature difference (if there is a problem with the thermosttle, the upper water pipe is hotter than the lower pipe). If there is a large temperature difference, it means that the high water temperature may be the damage of the thermoster, which needs to be dismantled and replaced, which is generally handled by professionals.

4. The water temperature of Yuchai Power is high, but the water pump, thermoster and fan are all normal after checking. Check whether the water tank is dirty. When the water tank is very dirty, the heat dissipation will not be good, which is easy to cause excessive water temperature. Or the waterway is blocked and the water cannot circulate, which will also cause high temperature.

492 How many main bearings does the engine have?

1. Yes, both tightening wheel bearings can be replaced. Remove them and buy them again. A water pump is a machine that transports liquids or pressurized liquids.

2. After all the oil is filtered by the filter, it enters the main oil channel of the engine. The filter cover is equipped with a bypass valve. When the filter is blocked, the oil is not filtered through the filter and directly enters the main oil channel by the bypass valve.

3. Tao. The 5-cylinder diesel generator has a maximum power of 197 horsepower, equipped with a four-wheel drive system and 5 main bearings, which is a part of the support shaft. Diesel generator is a kind of small power generation equipment, which refers to the power machinery that uses diesel as fuel and diesel engine as the primary motor to drive the generator to generate electricity.