Generally speaking, excavators with good equipment will discharge colorless and transparent gas under normal working conditions. The excavator engine with poor operation condition will emit smoke of other colors. However, no matter what color, experienced excavator drivers will know what happened to the excavator at a glance. Why does the excavator smoke white? You will know after reading this article!
Symptom: the engine oil pressure of a Komatsu pc270-8 excavator that has been used for 6000 hours is 4-5 kg. A lot of engine oil comes out of the exhaust pipe, and there is a lot of white smoke from the exhaust pipe.
Failure cause analysis:
1. Could it be that the fuel injector is dead? Is the diesel leaking into the engine oil? Is the oil full?
2. The exhaust pipe of the excavator emits white smoke and the waste pipe discharges oil, indicating that the engine of the excavator is gasping
3. There is white smoke in the exhaust oil of Komatsu pc270-8 excavator. The cause may be that the engine pressure of the excavator is low.
Fault check:
1. It is recommended to check each valve guide. After the guide is worn and the clearance is large, the oil lubricating the rocker arm may flow into the cylinder head when it moves up and down along the valve, and then directly be taken into the exhaust pipe by the exhaust. If it is the inlet valve, it will enter the cylinder block and burn
2. The temperature of the exhaust pipe is very high. It is normal for the engine oil to emit white smoke after flowing in, but the temperature can not reach the ignition point of the engine oil
3. As for the problem of high water temperature, if the engine burns oil, the efficiency will be greatly reduced, and the carbon deposition will also increase. If the efficiency is low, the water temperature will also increase
4. Oil can flow out of the exhaust pipe. There is a problem with the valve guide.
5. The engine oil in the exhaust pipe of the excavator has white smoke, which means that the engine oil is burned. It must have not been installed properly after the overhaul.
