A carburetor is one of the components of the engine power system. It is designed to prepare an optimal combustible mixture of fuel and air. In a 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
They invented a carburetor for a long time. Massively, these devices were produced in the 20th century. However, technological progress does not stand still, and instead of the carburetor, an injection power system came. The carburetor is a fairly old mechanism.
Its work is often supported by mechanical devices. The injection system is electronically controlled. Many owners of carburetor cars come to combine a mechanical carburetor with modern devices. One example of such a synthesis is an installed gasoline pump on a carburetor.
Gasoline pump: main types
This device, as the name implies, is designed to supply liquid gasoline from the tank directly to the combustion chambers of the engine. The main task of any pump is to pump liquid under the necessary pressure level, which is necessary in order for the motor to work as stably as possible. Modern technology is slowly but surely taking over the world. Innovation is also coming in the automotive industry, but carburetor motors still use mechanical pumps. The mechanical device was created exclusively for working with a carburetor. But the electric gas pump is designed for injection engines. The mechanical element is most often installed outside the tank, but the electric can be found inside it.
He is submersible. The carburetor gasoline pump 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.
Work of an 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 provide gasoline from the tank and then feed it into the cylinders. I must say that with carburetors, electric pumps operate at low pressure, unlike an injector. Here in the fuel system should be higher pressure. In addition, on injection engines, an electric gas pump is installed directly inside the gas tank. In the case of the carburetor, it will be located next to it under the hood. Therefore, the system operates at lower pressures. But for such an installation, specialized equipment is required, which can only be done at service stations. 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.
Electric pump design
This device is very similar to a mechanical device in terms of design and operation. Work is carried out thanks to the core. It is drawn in with the solenoid valve. The low pressure gasoline pump consists of a working chamber, valves - inlet and outlet, a diaphragm, a return spring, an electromagnetic sensor, a core and a contact group.
Action algorithm
The device works due to the movements of the diaphragm. She moves up and down.
As a result, a vacuum occurs when moving downward over the diaphragm and the inlet valve opens. Through it, the fuel enters the recess in the diaphragm, after passing through the filter. When it moves up, a certain pressure is created and the intake valve closes. Then the outlet opens, and the fuel further moves through the fuel system. Now
carburetor engine power systems have become massively equipped with electric pumps. This is easily explained by the mass of advantages that are not in the mechanical device.
Carburetor Tuning: Installing an Electric Gas Pump
Do not think that with all the simplicity of an element, installing it in another power system will be simple. Installing a gasoline pump is a rather complicated process. But the result is worth the investment. The first step is to determine which specific pump will fit the carburetor and the power system. Also for installation you will need various consumables.
Necessary materials
In order to install an electric pump, a hose is required.
Its length should be at least 5 meters, and the inner diameter - about 8-9 mm. An external low-pressure gasoline pump and a relay to it are also purchased. From tools it is necessary 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. Still need a steel tube with a wall thickness of 0.8 millimeters and a diameter of 7 millimeters. The length of the pipe must be at least 250 mm. A 12 mm hose and adapter fitting for a 8 to 12 mm hose are also required.
Installation work
First, the fuel level sensor is dismantled - it is in the tank. A hole is drilled in the lid and a 7 mm tube is soldered with a soldering iron. The end of this tube must be bent - this is in order for the return line drain to work. It should be bent so that one end of the tube is at a greater distance than the fuel intake pipe. The upper part also bends parallel to the fuel intake hole. Next, a modern fuel level sensor is mounted. It is worth noting that it has both a fence and a return line. It is installed in the tank.
It is important to know: the rubber tube must be connected by a “return” fitting from the fuel system. Then the end of the prepared hose is connected to the fitting of the fuel intake. Next, the elements are attached to a metal pipe using clamps. The low-pressure gasoline pump itself is installed horizontally to the engine shield through a special bracket through rubber pads. They are included with the device. It is very important to set the device in the correct position in which suction will occur from the side of the expansion tank, and the flow head is directed towards the motor. Then the filter from the injector is attached to the fuel supply hose.
A 5 mm diameter tube is put on the second fitting. She is using clamps secured to the body in an upright position. It is necessary that the combustible mixture is fed correctly, that is, from the bottom up. The pump is connected to the tank using a 12 mm hose and adapter. Then you should deal with high pressure. In the carburetor, it is not needed. To lower it, they remove the cover from the pump, unscrew the feed fitting and remove the mesh. A hole up to 3 mm is drilled in the return line connection. Then it remains only to connect the gasoline pump to the carburetor using an ordinary fuel filter. It is easy to do. Only clamps and a hose are needed. Connect the device to the 12-volt contact on the ignition coil via a relay.
Pros of an electric gasoline pump with a carburetor
There are many reasons why they install an electric gasoline pump on a carburetor.
One major benefit is how the engine starts. Now the motor will start quickly, almost instantly. The pump turns on as soon as the driver turns the key in the ignition switch. Significantly reduced noise. The electric pump practically does not make noise. The cabin will no longer smell like gasoline, as before. And finally, the main plus is the ability to reduce fuel consumption by a small percentage.
Conclusion
As you can see, this is a useful revision. By installing an electric gasoline pump on a VAZ carburetor or any other cars, you will not encounter any shortcomings. The only difficulty is the selection of a suitable device and installation work.