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List of the catalog of this article:

• 1,How to exhaust air in diesel vehicles
• 2. How to exhaust air in diesel vehicles without oil
• 3、 How does a diesel engine exhaust air?

How to exhaust air in diesel vehicles

. Loosen the gas screw on the diesel filter 2. Press the pump oil handle on the oil transmission pump 3. Observe the loosened degassing screw, the discharged fuel has bubbles, continue to press the pump handle on the oil transmission pump until the fuel does not contain bubbles, and then tighten the deflating screw on the diesel filter.

First of all, you need to find the hand oil pump of the vehicle; secondly, press the hand oil pump hard to extract the air inside the diesel from the fuel tank and transport it to the high-pressure oil pump at a certain pressure. However, before exhausting, the owner must ensure that the fuel supply pipe of the vehicle is well sealed and there is no leakage.

Before refueling, first open the fuel tank cover, find the exhaust port on the fuel tank, and open the exhaust port with the exhaust screw to release the air in the fuel tank. Start refueling. When refueling, you should inject fuel slowly to avoid too fast or too urgent, so as to avoid bubbles.

The first task is to press the hand oil pump handle repeatedly, which takes a long time. Then loosen the oil screw and tighten it immediately after the bubbles are discharged. Repeat several times until there are no bubbles. Remember the precautions when exhausting.

How to exhaust air in a diesel car without oil

1,. Press the oil pump handle on the oil transmission pump to observe that the loose air release screw on the fuel injection pump has bubbles. At this time, continue to press the pump oil handle until the fuel does not contain bubbles to stop pumping oil, and then tighten the degassing screw on the fuel injection pump.

2. Before refueling, open the fuel tank cover, find the exhaust port on the fuel tank, and open the exhaust port with the exhaust screw to release the air in the fuel tank. Start refueling. When refueling, you should inject fuel slowly to avoid too fast or too urgent, so as to avoid bubbles.

3. If on the way,If you need to exclude the air in the oil line, you can first release the degassing screw on the fuel injection pump or loosen any joint between the diesel filter and the fuel injection pump, and then drive the mechanical oil pump through the start. The leak point will spray out smooth and bubble-free fuel. At this time, just tighten the above leak point you have loosened.

4、. Check whether the fuel tank switch is Casino redeemopen and check the amount of oil in the fuel tank. If the amount of fuel is too little, add diesel first. Two. Check whether the oil pipe joints between the fuel tank and the oil pump are loose. If they are loose, they should be tightened. ( II) Exhaust from the diesel filter 1. Loosen the degasting screw on the diesel filter.

5. Hello, there is an exhaust bolt on the manual oil pump (oil-water separator) of the distributed diesel pump engine. Loosen the exhaust bolt and press the pump rod of the manual pump by hand until there is no air in the diesel out of the exhaust hole, and then tighten the exhaust bolt.

6. Press the oil pump handle on the oil transmission pump until the fuel does not contain bubbles to stop pumping oil. Just tighten the exhaust bolt or install the oil pipe inserted into the diesel filter.

How does a diesel engine exhaust air?

Unscrew any exhaust screw at the upper end of both sides of the fuel injection pump with a screwdriver or wrench several times, and press the manual oil pump with your hand until the discharged diesel is continuous, without bubbles, and makes a "squeaky" sound. Then screw the degassing screw and manually press the oil pump back to its original position.

To exhaust the air of the diesel engine, first find the exhaust screw on the oil pump, unscrew it with a wrench, find the hand oil pump, pump the oil hard, and wait for the sound. There will be a large outflow of diesel, tighten the bolts, and then pump oil. After the oil flows out of the return oil pipe, it proves that the exhaust is successful.

Press the oil pump handle on the oil pump until the fuel is free of bubbles to stop pumping the oil. Just tighten the exhaust bolt or install the oil pipe inserted into the diesel filter.

The method of diesel exhaust of Weichai 490 engine is to hold the exhaust screw on the filter seat and exhaust it without moving. The conventional method is to unscrew any exhaust screw at the top of both sides of the fuel injection pump with a screwdriver or wrench several times, and press the manual oil pump by hand until the discharged diesel is continuously, smooth without bubbles, and makes a squeaking sound.

The method of excluding air entering the low-pressure oil road. For diesel engines with oil transmission pumps, you can open air holes and press the hand pressure gauge to exclude air. For diesel engines without oil transmission pumps, you can loosen the venting screw on the fuel injection pump to make the diesel with bubbles overflow, and tighten the screws when there is no bubbles flowing out.Exclude the air from the high-pressure oil line.