Electric fuel pump on the carburetor: characteristics, installation

The carburetor is one of the nodes of the power system.engine It is designed to prepare the optimal combustible mixture of fuel and air. In the carburetor gasoline is mixed with air. Also, this element controls the volume of the mixture in the combustion chamber. Carburetors are still quite popular and are used not only on classic AvtoVAZ models, but also on some foreign cars.

Characteristic

Invented the carburetor for a long time.Bulk data devices were made in the 20th century. However, technological progress does not stand still, and instead of the carburetor came injector power system. The carburetor is quite an old mechanism.

His work is often supported by mechanicaldevices. The action of the injection system is electronically controlled. Many owners of carburetor cars come to combine mechanical carburetor with modern devices. One example of such a synthesis is an installed electric fuel pump on a carburetor.

Gasoline pump: main types

This device, as the name implies,designed to supply liquid gasoline from the tank straight to the combustion chambers of the engine. The main task of any pump is the pumping of fluid under the required level of pressure, which is necessary for the motor to work as stable as possible. Modern technology is slowly but surely taking over the world. Innovation is also emerging in the automotive industry, but mechanical pumps are still used on carburetor engines. The mechanical device was created exclusively for work with the carburetor. But the electric fuel pump is designed for injection engines. The mechanical element is installed most often outside the tank, but the electric can be found inside it.

Он погружной.The electric fuel pump on the carburetor is not the fruit of modern technology. This is a find of motorists themselves. The fact is that an electric pump increases the efficiency of the carburetor and the engine as a whole.

The work of the electric element with a carburetor

The electric fuel pump is very similar in principle to a mechanical device.

The main task of the element is to ensure the supplygasoline from the tank and then feed it into the cylinders. It must be said that with carburetors electric pumps operate at low pressure, unlike the injector. There must be a higher pressure in the fuel system. In addition to the injection engines, an electric fuel pump is installed directly inside the fuel tank. In the case of the carburetor, it will be located next to it under the hood. Therefore, the system works at lower pressures. But for such an installation requires the presence of specialized equipment that can only be done at the service station. And if the car owner wants to install an electric fuel pump with his own hands, then it is better to introduce the device into the tank.

The design of the electric fuel pump

This device by the device and the principle of actionvery much like a mechanical device. Work is carried out thanks to the core. It is drawn in by means of an electromagnetic valve. The low pressure electric fuel pump consists of a working chamber, valves - intake and exhaust, a diaphragm, a return spring, an electromagnetic sensor, a core and a contact group.

The algorithm of action

The device works due to movements of the diaphragm. She moves up and down.

As a result, a vacuum occurs above the diaphragm.when moving down and the inlet valve opens. Through it, the fuel enters the recess in the diaphragm, after passing through the filter. When it moves upwards, a certain pressure is created, and the inlet valve closes. Then the exhaust opens, and the fuel further moves along the fuel system. Now the carburetor power systems of the engine began to be massively equipped with electric pumps. This is easily explained by a host of advantages that are not found in a mechanical device.

Tuning the carburetor: installing an electric fuel pump

Do not think that with all the simplicity of the element,installing it in a different power system will be easy. Installing an electric fuel pump is a rather complicated process. But the result is worth the effort. First of all, it is necessary to determine which particular pump will fit the carburetor and the power supply system. Also for the installation will need a variety of consumables.

Necessary materials

To install an electric pump, you will need a hose.

Its length must be at least 5 meters, andinner diameter is about 8-9 mm. Also purchased remote low pressure fuel pump and relays to it. From the tools you need to find a drill with a diameter of 3-4 mm. Additionally, they buy a filter from the engine injection system, as well as a carburetor filter. You will also need a tube of steel with a wall thickness of 0.8 millimeters and a diameter of 7 millimeters. The pipe length must be at least 250 mm. Also required is a 12 mm hose and an adapter nipple for the hose from 8 to 12 mm.

Installation work

Сперва демонтируют датчик уровня топлива – он located in the tank. A hole is drilled in the lid of it and a tube of 7 mm is soldered in with a soldering iron. The end of this tube needs to be bent - this is to ensure that the return line is running out. Bend should be so that one end of the tube was at a greater distance than the fuel inlet pipe. The upper part also bends until parallel with the fuel intake. Next, mount a modern fuel level sensor. It is worth noting that it has both an intake and a return line. It is installed in the tank.

It is important to know:The rubber tube must be connected to the "return pipe" from the fuel system. Then the end of the prepared hose is connected to the fuel inlet nipple. Next, the elements are attached to the metal pipe with clamps. The low pressure gasoline pump itself is installed in a horizontal position to the engine shield through a special bracket through rubber pads. They are bundled with the device. It is very important to set the device in the correct position, in which the suction will be from the side of the expansion tank, and the flow head is directed towards the motor. Then a filter from the injector is attached to the fuel supply hose.

At the second fitting put on a tube with a diameter of 5 mm.It with the help of clamps is fixed on the body in a vertical position. It is necessary that the combustible mixture is fed correctly, that is, from the bottom up. The pump is connected to the tank with a 12 mm hose and adapter. Then it is necessary to do high pressure. In the carburetor it is not necessary. To lower it, remove the cover from the pump, unscrew the supply nipple and remove the screen. A hole of up to 3 mm is drilled in the return pipe fitting. Then it remains only to connect the electric fuel pump to the carburetor using an ordinary fuel filter. It is easy to do. Only clamps and hose are needed. Connect the device to the 12-volt contact on the ignition coil through the relay.

Pluses of electric fuel pump with carburetor

There are plenty of reasons why an electric fuel pump is installed on the carburetor.

One of the great benefits is howstart the engine. Now the engine will start quickly, almost instantly. The pump starts immediately as soon as the driver turns the key in the ignition lock. Significantly reduced noise operation. The electric pump is almost no noise. The cabin will no longer smell like gasoline, as before. And finally, the main advantage is the ability to reduce fuel consumption by a small percentage.

Conclusion

As you can see, this is a useful refinement.Installing an electric pump on the carburetor VAZ or any other cars, you will not encounter drawbacks. The only difficulty is the selection of a suitable device and installation work.