Cavitation erosion, mainly refers to the construction machinery due to long-term engineering use, resulting in the outer layer off the formation of machinery, the formation of pitted and needle-like small holes.These cavitation are inevitable. The cavitation erosion of diesel engine means that the surface of wet cylinder liner contact with coolant is destroyed into some needle-like holes, which wi...

1. Use the filter paper with low DU price to make the filter element. Due to the large aperture of the filter paper, poor uniformity DAO and low filtration efficiency, the harmful impurities to the engine cannot be effectively filtered, resulting in early wear of the engine. 2. Use low quality adhesive, and the amount is very small, neither oil resistant, and can not be firmly bonded, resulting in...

Piston spring of oil supply pump breaks The engine flamed out during operation and could not be started.After unscrewing the air release screw, it is found that the low pressure oil chamber of the fuel injection pump has no or very little fuel. Pump oil with the hand pump until the whole low pressure oil chamber is filled with oil, exhaust the air, restart the engine, and the engine returns to nor...

Piston spring of oil supply pump breaks The engine flamed out during operation and could not be started.After unscrewing the air release screw, it is found that the low pressure oil chamber of the fuel injection pump has no or very little fuel. Pump oil with the hand pump until the whole low pressure oil chamber is filled with oil, exhaust the air, restart the engine, and the engine returns to nor...

Low pressure oil supply is not smooth Diesel engine from the fuel tank to the fuel pump inlet cavity in between, back to belong to the low pressure oil pipe line, when the pipe joint, washer and tubing oil due to damage, will make the air into the oil produces gas resistance, leading to poor drainage, difficulty in starting and accelerating engine slow fault phenomena, such as serious shut down au...

Look at the phenomenon, check the circuit For electronically controlled diesel engines, the following two conditions will also lead to diesel engine power shortage.Thermal protection: If the temperature of the electronically controlled diesel engine is abnormal, the temperature of the coolant may be too high;High intake temperature;Fuel temperature is too high;Coolant temperature sensor circuit fa...

Look at the pressure, check for leaks Pressure gauge can be used to measure the cylinder pressure, find out the poor sealing cylinder.Reasons for poor cylinder sealing: valve clearance or clearance is too small, piston and cylinder sleeve and piston ring end face clearance is too large, ring groove carbon.In the diesel engine work, if close to the air filter can hear the "hiss, hiss" blowing sound...