Views : 190 Time : 2022-02-16 14:05:11
First of all, when cleaning the injector needle valve coupler, it should not collide with hard objects, nor let it fall on the hard ground, so as to avoid bumps and scratches.
The gasoline quality is now slightly better than in the past, and the gasoline filter has effectively filtered out the solid impurities that would bring the injectors. The remaining small particles with the gasoline flow through the nozzle hole size is no longer on the same level as the nozzle gap.
Glue substances present in gasoline are difficult to form bonds due to high-speed injection and repeated opening of the needle valve.
Secondly, the fuel injector should be checked and adjusted once about 700 hours of operation. If the opening pressure is lower than the specified value of 1Mpa or more or the head of the needle valve has serious carbon deposits, the needle valve should be removed and put into clean diesel oil to scrape it clean, and then dredged with fine steel wire, and the injection pressure of each cylinder of the same machine is required. The difference is less than 1Mpa.
Because carbon deposits have a great impact on the fuel injector during the combustion process, it is meaningless to clean the fuel injector without taking improvement measures, because new ones will be generated after a long time of operation, and cleaning is only a temporary solution Do not cure the root cause.
Finally, in order to completely burn the diesel fuel injected into the cylinder by the injector, it is necessary to check the fuel supply time of the fuel pump. If the fuel supply time is too early, the vehicle will have difficulty in starting and the failure of cylinder knocking.
If the fuel supply time is too late, it will cause the exhaust to emit black smoke, the temperature of the machine is too high, and the fuel consumption will be higher.
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