The following situations will occur
1: The amount of cooling water in the radiator is abnormal and gradually decreases;
2: The oil pressure decreases if the oil pressure decreases. from 100 ~ 200 kPa at the same speed, the reason should be checked in time;
3: After the diesel generator continues to run or stands for several hours, the oil level in the oil pan increases significantly. , that is, the quantity of oil does not decrease but increases. Sometimes the oil level rises from the vernier scale.
4: There is white mist in the unit's casing and respirator; there are sometimes water droplets at the mouth of the respirator;
5: The oil pan is flooded with water at first. If there are water droplets in the oil, the engine oil will turn milk white over time;
6: The cooling water will “boil” or “bubble”. This means that there is a crack in the cylinder liner and water has entered the oil pan.
Solution:
1 When found If water has entered the diesel generator, if the generator set is running, stop immediately. The state does not allow startup.
2. Then support one side of the diesel generator with a hard object and lift it so that the oil drain part of the engine oil pan is in the lowest position, remove the oil drain plug. oil dipstick and make the oil bottom. The water inside the hull drains out by itself. When the oil is about to drain, let the oil and water drain for a while, then tighten the oil drain plug.
3. Remove the air filter, replace the new filter element and soak it in oil.
4. Remove the intake and exhaust pipes and muffler, and remove any water presentin the pipes. Turn on the pressure relief, crank the diesel engine to generate electricity, and observe if water flows from the inlet and exhaust ports. If there is water drained, continue to rotate the crankshaft until all the water in the cylinder is drained. Install the intake and exhaust pipes and mufflers, add a little engine oil to the air inlet, crank the crankshaft a few times, then install the air filter.
5. Remove the fuel tank, drain all oil and water from it, check for water in the fuel system and drain it.
6. Release the waste water into the water tank and water channels, clean the water channels and add clean river water or boiled well water until the water float mounted. Turn on the throttle switch and start the diesel engine. After starting the diesel engine, pay attention to the rise of the indicatorur engine oil and listen for any abnormal noise coming from the diesel engine. After checking whether all parts are normal, run the diesel engine. The operating sequence is first at idle, then medium speed, then high speed. The running time is 5 minutes each. After break-in, stop the engine and drain the engine oil. Add new engine oil again, start the diesel engine and run it at medium speed for 5 minutes, then it can be used normally.
7. Disassemble the generator, check the stator and rotor inside the generator, then dry them before assembly.
After the engine floods, initial corrective measures should be taken according to the specific situation to avoid secondary damage to the vehicle, discover the key to the problem, and minimize damage to the car. .
After understanding the specific situation, if you find thatIf water has entered the engine, you must remove the spark plug and artificially prevent the fuel supply and ignition system from starting, so that the water in the engine can be drained successfully.
After the inspection is completed, use compressed air to treat the internal components of the motor. The electrical connection part must be protected from erosion by accumulated water.
The parts to pay attention to are: the fuse box, the sensor socket and the body water accumulation area.
After cleaning, test drive the vehicle to ensure normal engine operation during use.