Do-it-yourself installation of HBO on 2106 quickly and efficiently

Installation of HBO on 2106: multivalve

In the article you will learn about how to install gas equipment on a VAZ 2106, what are the requirements for this process. I also recommend reading about installing an LPG on a 4th generation car.

It should be noted that this guide is intended for informational purposes only; only the main points are described without a deep dive into the topic. If you are faced with the installation of gas equipment for the first time, then it is best to study in more detail the technical literature, as well as the recommendations of the gas equipment manufacturer.

Justification for switching to gas

We will talk about the 1st and 2nd generations of gas equipment. The third and fourth are not considered, since they are intended for installation on injection engines. Or diesel engines with an electronic control system. Of course, you can install fourth-generation equipment on a carburetor, but you will need to do a lot of manipulations. First of all, the engine needs to be supplemented with a variety of sensors, which will subsequently be connected to the electronic control unit. You will learn how to install such systems on injection engines in a separate article.

If you look at it from an economic point of view, then on VAZ 2106 cars, LPG pays off in about 30 thousand km. mileage If you use the car constantly, then this distance will be covered in a year and a half. But you should not install the equipment on your car if the annual mileage is less than 20 thousand. This will turn out to be simply unreasonable; the installation will pay off in a few years. Let's say you often make long trips in your VAZ 2106 car. What will you get when working on gas fuel?

The most important thing is saving. The price of gasoline is rising, and so is the price of gas. But the cost rises almost equally. A liter of gas costs about half as much as gasoline. But you also need to look at consumption. If the carburetor is set up perfectly and you drive at a speed of no more than 120 km/h, then the gasoline consumption will be 7-9 liters in the combined cycle. With the correct settings of gas equipment, LPG consumption can reach 11-13 liters. Having made simple calculations, we can conclude that driving on gas will be much more profitable, even if the consumption is 13 liters. The price of all equipment is no more than 10 thousand rubles including installation.

But you get several more benefits from using LPG on VAZ 2106 and similar models. The service life of the engine oil becomes slightly longer, but longer. During operation, the gas burns without residue, no impurities settle in the cylinders. These impurities do not enter the lubrication system, which increases the oil life by 2 thousand km. mileage on average. Hence the longer service life of spark plugs - their electrodes become less clogged. Perhaps this will be enough to make your choice in favor of HBO.

Poor fuel pressure and automatic transmission malfunction

The loss of fuel is caused by increased pressure, at which the fuel mixture is enriched with an additional volume of fuel. But this happens extremely rarely. Too low pressure has a greater impact on fuel consumption. At the same time, the productivity of the internal combustion engine noticeably decreases, the acceleration dynamics of the car weakens, and the ECS does not have time to compensate for the lack of fuel in a certain period of time. Reasons for low pressure include wear of the fuel pump strainer, fuel filter, or the fuel pump itself when using low-quality gasoline. The first sign of an automatic transmission malfunction is an uncharacteristic sound from the engine, which indicates overload, followed by an increase in fuel consumption. In this case, you should stop further operation of the transmission, which leads to fuel consumption, and contact a service center. By the way, the consumption of an automatic transmission is usually 1.5 liters higher compared to a manual transmission. Availability of car air conditioning. If you have air conditioning, if the consumption of gasoline or other fuel increases only in the summer, then this is normal. Engine operating parameters partly affect the energy consumption of the air conditioner. When driving around the city, about 20% of fuel consumption comes from the air conditioner, and when driving on the highway, the percentage of air conditioning costs is almost unnoticeable.

Generations of HBO: which one to install on the carburetor?

Ideal for VAZ 2106 cars with a carburetor injection system, gas equipment of the 1st or 2nd generation is suitable. Its price is not very high, there is no electronic control system, like on the 4th generation. There are not very many differences between the first and second generations. The carburetor is connected to the dispenser using a gas hose. There is a minor difference in the design of the dispenser itself. For example, the first generation uses manual dispenser adjustment. Its configuration is carried out immediately after installing the HBO. Subsequently, its position must be adjusted from time to time.

But the second generation LPG has an electric dispenser drive. It uses a specially designed stepper motor. But for this system to work, the following conditions must be met:

• the car must use an electronic carburetor;
• The exhaust system must have an oxygen sensor.

As you understand, VAZ 2106 cars do not use an electronic carburetor. Therefore, it would be more reasonable to use a conventional mechanical type dispenser; you will now learn how to install such a system. As a result, you get equipment not of the 2nd, but of the first generation.

But we can make a small reservation. If we assume that the first generation of HBO is the systems that were used half a century ago, then the second is equipment with mechanical dispensers. Therefore, the third generation is devices with electronic dispensers. The fourth generation is for working on injection engines. The fifth generation is practically a copy of the 4th, only a special pump is installed in the gas cylinder to eliminate the need to install a gearbox. The division of HBO into generations is very relative.

Stages

Adjusting the 2nd generation HBO consists of several simple steps:

1. Adjusting the sensitivity of the gearbox.
2. Adjusting the propane-butane mixture dispenser.
3. Adjusting the idle speed when operating on a propane-butane mixture.
4. Delay in the operation of the automatic shutdown when switching the operation of the car engine from gasoline to a gas mixture for carburetor cars. Or the number of revolutions at which the engine will switch from running on gasoline to running on a propane-butane mixture, provided that the fuel type switch button is set to the “automatic” position.

Before starting the adjustment, check:

• There is a sufficient level of coolant in the vehicle's expansion tank. If necessary, liquid must be added.
• Check and, if necessary, adjust the operation of a car engine on gasoline.
• Since the engine, when running on a propane-butane mixture, is very sensitive to air filter contamination, the air filter is replaced with a new one or blown out.
• No gas leaks. It is checked mainly by applying soap foam - by washing all gas compounds. If leaks are detected (in such places soap bubbles form from the foam), the connection is disassembled and the leak is eliminated. Then the reassembled connection must be checked again.
• Reliability of fastening of all clamps and nuts.

• Reliability and correct connection and absence of short circuits of all electrical appliances of HBO2 (electric valves, buttons).
• Check the presence of gasoline in the gas tank.
• Fill the cylinder with a propane-butane mixture.

Set of gas equipment

Before you start installing equipment on a VAZ 2106 car, you need to check the completeness. You must have all the necessary elements and components. Let's take a closer look at all the components and figure out what they are intended for. So, here is a complete list of 2nd generation HBO elements:

1. Gas fuel cylinder. It stores gas that is used to power the engine. The most common shapes are toroidal and cylindrical. The latter takes up a lot of space in the luggage compartment and is usually mounted on the back of the rear seat. But the toroidal one in the VAZ 2106 will not save the situation. After all, this is not an eight or nine, there is no niche for a spare wheel. Therefore, from an ergonomic point of view, it does not matter which cylinder you put in your car.
2. A multivalve is necessary for the full functioning of any generation of gas equipment. With its help, gas equipment is switched between two modes - “operation” and “refueling”. This valve opens the way to the filler hole or to the fuel line going to the carburetor.
3. The refilling device is a gas hose designed to operate under high pressure. One end of the hose is connected to the filling fitting, and the other to a multivalve installed on the cylinder.
4. Line designed to operate under high pressure. It is used to connect the gas reducer to the multivalve.
5. The evaporator reducer serves to reduce fuel pressure. In installations operating on a propane-butane mixture, single-stage reducers are used, since the pressure in the cylinder and line is no more than 16 atm. For methane plants, two- and three-stage ones must be used, since the maximum pressure value can reach 200 Atm.
6. The gas valve opens and closes the fuel supply to the evaporator reducer.
7. The gasoline valve is necessary to open and close the gasoline supply to the carburetor. The operation of both valves is synchronous: the gas valve is open, the gasoline valve is closed and vice versa.
8. A mechanical or electronic type dispenser allows you to adjust the gas supply to the intake manifold. With its help, the amount of fuel that needs to be supplied to the combustion chamber is regulated.
9. The mixer is installed if there is no insertion into the carburetor. With its help, gas is supplied to the carburetor.
10. Fuel type switch. A button that is mounted in the interior of a VAZ 2106 car. It is used to open and close the gas and gasoline valves. Without it, gas equipment simply will not be able to work.

Installation of the cylinder

To begin with, even before purchasing gas equipment, you need to decide what type of cylinder it will be: tablet-shaped or cylindrical. Usually, a cylindrical cylinder is most suitable for a classic VAZ; it has a large volume, and thanks to the large trunk, this cylinder will easily fit into it.

If the car is a hatchback, as in the 8 or 9, then it is better to install a tablet, and install it instead of a spare tire. This will save a lot of space, but you will have to drive more carefully and remember that there is no spare wheel in the car.

The cylinder must be securely fastened so that it does not dangle while driving. This is usually done using bolts and a metal stand.

After installing the cylinder, you need to decide which side the filling valve will be on. It is usually done at the bottom of the rear bumper; to do this, you need to drill a hole of the required diameter.

How is HBO connected?

So, now we need to consider how to install a 2nd generation LPG on a VAZ 2106. Let’s get into the engine compartment. A gas reducer and valve are installed there. The gearbox input is connected to the valve output. The end of the high pressure fuel line is connected to the valve inlet. All lines that operate under high pressure are made of copper. Low-pressure lines use rubber hoses through which gas passes.

A pipe from the cooling system is also connected to the evaporator reducer. On a VAZ 2106 car, the gearbox can be installed on the right side, not far from the stove. You will only benefit, since the exhaust manifold is located nearby, which means that the temperature in this part is high, which will help the gearbox warm up faster. The connection to the cooling system can be made as follows:

1. Disconnect the pipe going to the heater radiator.
2. Install a pipe from the pump to the gearbox housing. It is used to supply hot antifreeze.
3. A second pipe is installed from the gearbox to the stove tap.

Consequently, the device is heated through the stove circuit.

After the gearbox, the regulator is installed and then gas must be supplied from it to the carburetor. Gas fuel can be supplied to the carburetor in two ways:

1. Using a mixing spacer.
2. Using a tap into the carburetor.

To feed using the latter method, it is necessary to drill holes in the carburetor chambers. Cut threads into them and screw in special fittings. Gas pipes are connected to the latter.

Installation of a gas mixture dispenser

Now it’s time to install the gas mixture dispenser; it is placed between the mixer and the gearbox, but it is also better to install it close to the carburetor. A gas pipeline must be installed to the dispenser, which comes from the reducer, and a gas pipeline must be led from it to the mixer.

The most important thing is that all the gas equipment parts are fixed in place, and the entire system is sealed.

What to consider?

Yes, there are many nuances that you should definitely follow when installing an LPG on a VAZ 2106 car. The article contains a video that talks in more detail about all the subtleties. However, this section will be relevant for any make and model of car, as it describes the intricacies of installing gas equipment. Let's start from the very beginning - with the balloon. It must be placed in such a way that the axis of the multivalve is located at an angle to the horizontal plane.

Moreover, the angle should be exactly 30 degrees. Not a degree more or less. If installed at a different angle, the FLS will show “weather” and the fuel intake from the tank will be unstable. Therefore, when installation is carried out, you need to pay attention to all, even the most insignificant, points, otherwise the cost of incorrect installation will be incredibly high.

The refueling fitting on a VAZ 2106 car is best secured in the rear, right under the bumper. The line is laid along the bottom of the car. All this work should be carried out in an inspection hole, since it is almost impossible to install tubes without it. Laying them with your own hands is quite simple. The main thing is to install the line next to the gasoline line. You can even attach it to the gasoline pipe using plastic ties.

There are no special requirements for the fuel selection button. The most important condition is that it is convenient to turn it on. To install the gasoline valve, you need to cut the fuel hose between the pump and the carburetor. But the gas one must be installed in the engine compartment on the right side. Pay attention to the installation of the evaporator reducer. It is not difficult to install it with your own hands, but you must adhere to some requirements:

1. Its location should be lower than the uppermost pipe going to the stove.
2. Its location should be longitudinal, this will avoid problems with the diaphragm during sudden acceleration or braking.

The installation of the mixer also has some features. It is installed in the carburetor, located between two halves - the throttle body and the carburetor itself. Of course, the height increases, so you need to purchase the required number of bolts. Their length should be three turns longer than the standard ones.

Installation of gas pipeline wiring

Next, you need to deal with the gas pipeline wiring. It is necessary to drill a hole from the cylinder valve to the engine compartment. Moreover, the gas pipeline is usually run along the bottom of the car.

To ventilate the multivalve, you need to drill a hole with a slightly larger diameter and insert a piece of plastic pipe into this hole.

These inserted tubes must be treated with mastic to prevent rust from appearing in the future. You need to run a gas line through these plastic tubes and secure it well so that it stays away from the moving parts in the car.

How to adjust the gearbox yourself?

That's all, we figured out a little about how to install gas equipment on a car with a carburetor injection system with your own hands. Now let’s set it up correctly so that the consumption is lower and the throttle response remains the same as on gasoline. To do this, you need to use the following guide. First of all, you adjust the ignition; you need to set it a little earlier - turn the distributor body two notches (this corresponds to 10 degrees).

To make fine tuning, it is best to use electronic octane correctors. But for their normal functioning, a BSZ will be required. The reason for adjusting the ignition is that gas fuel has an octane rating of over 100. And if the adjustment is not made, the exhaust valves will burn out, and the cost of repairing them will be very significant.

You adjust the enrichment of the fuel mixture; the screw is located on the evaporator reducer. Make sure that the number of crankshaft revolutions is in the range of 800..900. Now it is necessary to adjust the gas fuel supply. To do this, you will need to screw the bolt on the valve until it stops. Then unscrew it two turns. This should be done with the engine turned off; after unscrewing the valve two turns, you can start it. Listen to how the engine works. If you sharply and briefly press the accelerator pedal, the revolutions should instantly reach 3000.

In this case, no delays should be observed. If the motor begins to “choke”, it is necessary to rotate the screw counterclockwise until this symptom disappears. You can do the entire setup yourself in just a few minutes, since only three screws can be adjusted. Screw in the second screw until it stops and turn it one turn counterclockwise. Start the engine and sharply depress the accelerator pedal.

Up to 6500 rpm, the crankshaft should spin up instantly. Please note that the second camera on a VAZ 2106 car should not open in the same way as the first. If it opens too much, the power will increase, but the consumption will increase significantly. And you won't feel any savings. Finally, the normal rotation speed is set by adjusting the XX screw.

Connection and trunk

After installation, the reducer is connected to the gas supply line passing under the car body. The choice of material for the supply line is at the discretion of the customer, but mainly behind a thermoplastic tube (usually a 6 mm line is used for a carburetor passenger car).

The main line is laid away from hot parts and parts subject to constant movement. For installation, staples with self-tapping screws and plastic disposable ties are used (the staples and screws should preferably be galvanized, or better yet, stainless, and the ties are weather-resistant and ozone-resistant).

About the Avtogaz-Moscow service

For 14 years, we have installed HBO on almost all popular models. It is convenient to combine the installation of HBO with routine vehicle maintenance. Within 5 hours we will install gas on your 2106 and, if desired, replace air filters, spark plugs, high-voltage wires, etc.

LPG suppliers in Russia

We are suppliers of gas equipment in the Russian Federation. We work only with proven European manufacturers. We are confident in the quality of the equipment we offer.

We provide a guarantee for up to 5 years!

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