How to deal with excessive oil injection in diesel generator sets?

How to deal with excessive oil injection in Diesel Generator sets?
The most prone to faults in the operation of diesel Generator sets are fuel injection pumps, fuel injectors, governors, etc., especially fuel injection pumps. Once the oil supply is too much, there will be waste of fuel, insufficient combustion, smoke, etc. It not only affects the normal operation of the generator but also reduces the life of the diesel generator. Generator manufacturers - Yingtai Power Summary, the main reasons for the excessive fuel supply to the fuel injection pump are the following:
1) Excessive oil in the governor, so that the oil supply will also increase;
2) The adjustment screw for limiting the maximum oil amount of the rack in the governor is too large or the throttle handle limit screw is adjusted too large;
3) The fuel pump plunger is adjusted to supply too much oil, or the ring gear locking screw is loosened to adjust the ring gear displacement, resulting in excessive fuel supply to the fuel injection pump. When the supply is too much, the fuel consumption will increase, the fuel combustion will be incomplete, the diesel exhaust will emit black smoke, the combustion chamber will accumulate carbon, accelerate the wear of the cylinder, piston and piston ring, and even cause the diesel engine to overheat and knock. Therefore, according to the above three common reasons, the unit should be inspected in order to make the diesel Generator Set work efficiently.