Diesel Injector Fuel Injector 0445110254 0445110255 0445110256 0445110257 0445110258 Bosch for Hyundai Grandeur Tg D 2.2L Vgt EU4hyundai Santa Fe D 2.2L Vgt EU4KIA Trajet Xg D

Reason 1: The fuel injector has serious carbon deposits. The fuel injector is located at the top of the combustion chamber, the nozzle is in the combustion chamber, the environment of the combustion chamber is harsh, and the fuel injector is in the harsh environment of high temperature and high pressure gas. The fuel injector forms a rigid seal with the gland nut and the fuel injector bushing, which requires high sealing performance. Due to structural design reasons, the installation and cleaning process of the fuel injector requires high requirements. The sealing effect here is not very good. In high temperature and high pressure gas Under the erosion of the fuel injector, it is easy to deposit carbon into the surroundings of the fuel injector, making it difficult to pull the fuel injector out. In order to determine the carbon deposits of the fuel injectors, the carbon deposits of the fuel injectors with similar operating hours of the main engine are sampled. Sampling inspection of 8 fuel injectors. When the fuel injectors run for 5000 hours, the carbon deposits are serious. When the fuel injectors run for 3000 hours, the carbon deposits are relatively slight. Check the fuel injectors around 3000 hours, and the fuel injectors are in good condition. At the same time, it has little effect on pulling out the fuel injector. As the running time increases, the degree of carbon deposition intensifies. Reasonable control of the fuel injector inspection time can better avoid disassembly of the fuel injector, and this factor is caused by the structural design of the main engine. inevitable. Therefore, it is confirmed that the fault factor is unnecessary.