Fuel injector failure is bound to use this auto repair tool

The failure of the injector will directly lead to abnormal engine phenomena. WD615 series engine injectors have the following faults,

The failure of the injector will directly lead to abnormal engine phenomena. The WD615 series engine injector has the following faults, and the injector puller is the best helper to solve the following faults!

(1) Black smoke from the exhaust pipe;

(2) The work of each cylinder is not uniform, and the engine produces obvious vibration phenomenon;

(3) The engine power is reduced, and the vehicle is unable to drive.

In order to judge the fault of the engine injector, the engine can run at idle speed, and the oil cut-off test is carried out on each cylinder in turn. When a cylinder stops supplying oil, pay attention to the working condition and sound of the engine. If the exhaust no longer emits black smoke after the oil is cut off, the speed of the engine changes, that is, the cylinder injector is faulty.

After the troubleshooting judgment of WD615 series engine injector is accurate, remove the injector and check it on the injector calibration table. There are generally the following kinds of faults:

(1) The injection pressure is too low;

(2) the oil injection is not atomized, or the obvious oil flow is shot down;

(3) The length of each injection hole injection oil bundle is different, and the oil bundle is uneven;

(4) oil injection nozzle drops;

(5) The needle valve of the fuel injector is stuck and burned.

Injector extractor

The injector puller is simple in structure and easy to use. It will not damage the parts in the process of pulling out the injector. At the same time, the working time is greatly shortened and the pulling efficiency is improved.

Injector puller helps you analyze and solve injector faults

Injector extractor

After the above situation, apply the injector extractor to remove the injector for repair. It should be replaced if badly damaged. After replacement, the injection pressure should be adjusted to 22+0.5MPa, and the spray condition is good, without dripping oil. The main reason for the failure of the fuel injection nozzle is the problem of the oil and the filter, such as the use of inferior diesel fuel, the long-term use of the filter element of the filter is not cleaned, not replaced. It is recommended that users use diesel that meets the national standard, and each time the vehicle is guaranteed to clean the diesel filter element, the second guarantee to replace the diesel filter element, and the fuel tank is cleaned regularly.