There are a great many reasons why air gets into the injection pump, but they are often associated with the age of the vehicle. Over time, starting a car becomes more and more difficult until the diesel stops starting at all.
Necessary
- - 2 durite hoses (1 m), which are equal in diameter to the return and direct fuel supply hoses;
- - capacity (plastic, 3-5 l);
- - 2 hose clamps;
- - syringe / vacuum pump.
Instructions
Step 1
In order to remove air from the air pressure pump, it is necessary, first, to connect the return and direct fuel supply hoses. After that, install the previously prepared durite hoses. Fill the container using diesel fuel.
Step 2
Secure the hoses with clamps to the nozzles, then lower the straight hose with its free end into the container, and do not forget to take measures so that the hose does not jump out of the container in any case.
Step 3
Now place the container on a level above the fuel pump. On the fuel pump, washed from all kinds of contaminants, it is necessary to unscrew the bolt in the return flow connection, and suck air through the appeared branch pipe until the fuel flows.
Step 4
Then screw in the bolt you removed. Then run the engine for five minutes so that the air is removed completely. Suction using a vacuum pump, syringe, or any other available method.
Step 5
In order to expel the air using another method, it is necessary to place a container made of plastic with diesel fuel at a level higher than the fuel pump.
Step 6
Remove the direct fuel supply hose from the fuel pump, then drain the fuel in the same way as in the case of pouring, from one container to another, liquid.
Step 7
Install the hose back in the moment when the flow of diesel fuel becomes a steady stream, and then do not forget to tighten with a new clamp.
Step 8
Remove the bolt from the return hose. As a result, the air through the opened fitting is removed independently due to the siphon effect. Then start the diesel engine for five minutes so that the air is completely removed from the injection pump. After half an hour, re-start for the same period of time.
Step 9
In order to eliminate air leakage in the future, it is necessary to check how tight the fuel hose is, as well as its reliability of tightening with clamps. Remember to check the fuel filter seal, what condition the fuel pipes are in, as well as the tightness of the mechanical or manual booster pump, the control arm shaft, and how tight the drive shaft seals are.
Step 10
If you find a possible air leak, be sure to replace the defective parts.
