We will inevitably encounter some failures when using diesel engines. Let's briefly introduce the inspection sequence of diesel engine non-injection failures:

1. Check whether there is oil in the fuel tank, whether the oil is condensed, whether the fuel tank switch is turned on, and whether the speed control handle is placed in the middle position.

2. Rock the car to observe whether there is oil leakage at the high-pressure oil pipe and the joints at both ends.

3. Unscrew the bleed screw of the fuel injection pump to exhaust the air. If the oil does not flow or the oil does not flow smoothly, it indicates that the low-pressure oil circuit is blocked.


4. Remove the high-pressure oil pipe. If oil flows or drips from the tight cap hole of the oil outlet valve, it means that the oil outlet valve is leaking.
 
5. Rock the car to see if there is a burst of oil sprayed from the tight cap hole of the oil outlet valve. No fuel injection indicates that the fuel injection pump is in a position where the fuel injection pump is not injecting fuel. It may be the place where the plunger of the fuel pump or the governor is stuck, or the connection may fall off. If the plunger of the oil pump turns to the large fuel supply position and still does not spray oil, it may be that the spring of the oil pump is broken or the plunger is stuck in the plunger sleeve, and the spring cannot make the plunger return.

6. The cradle is sprayed out in bursts of oil, and no oil is sprayed out if the high-pressure fuel pipe and the fuel injector are connected, indicating that the plunger of the fuel pump is severely worn, or the fuel injection nozzle is burned to the closed position, or it may be fuel injection pressure The adjustment is too high.