The specific method is to continuously heat the water (allowing it to flow out of the cylinder block) and gradually increase the water temperature to enter the small diesel generator set for preheating. When the temperature of the water flowing out is high, turn off the drain switch. In addition, open flames such as spray lamps can be used to heat the oil pan to improve the flow performance of the engine oil, reduce the movement resistance of the components, and ensure sufficient capacity and good performance of the battery, which also helps to improve the starting performance of the diesel engine.

Improve the sealing performance of the cylinder

One of the differences between diesel engines and gasoline engines is compression ignition, which requires the cylinders to have high sealing performance. When cold starting an engine in winter, due to the lack of oil on the piston rings and cylinder walls, the sealing effect is poor, resulting in repeated starting and inability to ignite and run. Sometimes, due to severe cylinder wear, the sealing performance of the cylinder is severely affected, making startup more difficult. For this, the fuel injector can be removed and 30-40ml of engine oil can be added to each cylinder to enhance the sealing performance of the cylinder and increase the pressure during compression.

Remove air from the oil circuit

Loosen the air release screw on the high-pressure oil pump and pump the oil by hand to remove any air from the low-pressure oil circuit; Then, remove the air from the high-pressure oil circuit. The specific method is to loosen the oil pipe joints on each fuel injector, so that the throttle is in the high fuel supply position, rotate the crankshaft until the oil pipe joints of each cylinder's fuel injector discharge rapidly.

There are many requirements for starting a generator set in winter, and it is usually recommended to first shake the crankshaft to make it run smoothly before starting. The above methods should be selected individually for specific situations, or multiple methods can be used simultaneously.