How to repair or replace the gas tank of a VAZ 2107

The VAZ 2107 is a legendary car, one might say. Firstly, this is the last representative of the VAZ classic, and secondly, it is a car in which both a carburetor and an injector were used to supply fuel. Today, the last cars of this brand that came off the assembly line still work properly. The only weak point of perhaps one of the most famous cars is not very good hardware. The VAZ 2107 injector tin is very susceptible to corrosion. Due to this very unpleasant feature, the gas tank can also develop an unexpected leak.

So that you are always prepared for such situations, in this article we will briefly go over the design features of the VAZ 2107 gas tank with an injector system. Let's talk about how to dismantle the fuel tank yourself and how to repair it both in an emergency and in a normal situation.

Gas tank on VAZ 2107

The design of the fuel system on the VAZ 2107 injector

The VAZ 2107 injector power system has some differences from the classic carburetor.
The main distinctive features are caused precisely by the fact that instead of a standard system for supplying the air-fuel mixture to the cylinders, the new VAZ 2107 models use an injector. Accordingly, other elements, such as a pump, filter, etc., differ. In addition to the indicated differences in the fuel system, the VAZ 2107 injection engine has fundamental differences in the ignition system. At the same time, the undeniable advantage of this type of engine is the presence of electronic control of all major systems. It is thanks to it that the efficiency and efficiency of the engine significantly increases. The schematic diagram of the fuel supply system for the VAZ 2107 injector is shown in the following figure.

Here the main elements are indicated by numbers from 1 to 12:

1. Air intake tube.
2. Filter for air purification.
3. Connecting air pipe.
4. Damper with built-in idle speed control system.
5. Fuel injection system (injector).
6. Filter for mechanical fuel purification.
7. Pump with electronic fuel volume sensor (installed in the tank).

1. Bypass valve.
2. Safety valve.
3. Tank.

In addition, the power circuit contains a system for cleaning and subsequent saturation of air with gasoline vapor, consisting of a fuel purge valve 8 and an adsorber 12.

As you can see, the power supply system of the VAZ 2107 injector has a number of significant differences, therefore, the procedure for its maintenance has its own characteristics. As for the air filter, everything is exactly the same as in the case of a carburetor. The filter element is replaced during each routine maintenance.

The pump does not require special maintenance, except for cleaning the fuel strainer installed on the suction pipe. This mesh traps mechanical impurities present in gasoline poured into the tank. If the fuel pump fails, it is replaced. To do this, it is necessary to disassemble the tank, remove the entire pump assembly from it, after which the failed element is replaced. The repaired pump is installed in its regular place in the tank.

1. mesh filter for rough cleaning from mechanical impurities;
2. fuel supply pump;
3. electronic sensor for monitoring the fuel level (filled in the tank);
4. fuel supply pipe;
5. fuel outlet pipe;
6. electrical connector;
7. float.

The fuel filter is replaced periodically, in accordance with the manufacturer's recommendations. The main element is a special paper insert assembled in a metal case, and it is installed in the supply pipeline between the fuel pump and the injection system. The direction of fuel movement is indicated by an arrow on the body. For example, according to the arrows in the following photo, the pump (fuel tank) should be connected on the right side, and the ramp on the left.

The fuel injection system or fuel rail of the VAZ 2107 engine injector is designed directly to supply the mixture to the engine cylinders.

1. fuel injectors;
2. feed tube;
3. outlet tube;
4. ramp;
5. spool fitting for pressure control;
6. electronic pressure regulator.

One of the main working elements of the VAZ 2107 engine injection system is the injector. It is essentially an electromechanical valve that is controlled by the engine management system. When voltage is applied, the valve opens and the mixture is injected into the cylinder through the nozzle under the pressure created by the pump. During operation, the nozzles become clogged and therefore require periodic cleaning. As a rule, injectors are cleaned during maintenance, but if engine performance deteriorates, they need to be cleaned without waiting for routine maintenance. Injectors are replaced only when they fail.

Another element of the fuel supply system of the VAZ 2107 engine injector is the throttle valve. It is with its help that the engine speed is controlled, the damper regulates the volume of intake air to prepare the combustible mixture. To prevent freezing of the insides of the damper during the cold season, it is connected to the engine cooling system.

1. pipe for connecting the adsorber;
2. frame;
3. flap;
4. damper drive;
5. pipe for removing crankcase gases;
6. pipes for connecting to the cooling system;
7. electronic damper position sensor;
8. idle speed control element.

Another new element of the VAZ 2107 engine is the adsorber. It is designed to collect gasoline vapors when the car is idle. After starting the engine, the vapors held by the activated carbon are mixed with air, and the resulting mixture is fed through the throttle valve into the cylinders. In this air exchange scheme, among other things, the tank is involved, which is the main supplier of air saturated with fuel vapor.

In general, the nutrition scheme described above is more effective than the classic one. This is also due to the presence of an electronic engine control system, which regulates injection depending on operating mode, temperature and other factors. And if you follow the manufacturer's recommendations regarding routine maintenance, there will never be any problems with your car.

History[ | ]

People's House, 1900s, photo by Maxim Dmitriev The resolution on organizing an opera house in the city was adopted by the City Council in 1931. It was decided to rebuild the building of the People's House into a theater. The People's House was built in 1903 on the initiative of the Society for the Promotion of Primary Education in the Nizhny Novgorod Province with the assistance of M. Gorky. It was conceived as a “center of culture” in the provincial town (club, library, amateur theater).

The building was built according to the design of the architect P. P. Malinovsky with private donations, large of which were made by Countess S. V. Panina and F. I. Chaliapin, who gave a concert in favor of the construction at Gorky’s request.

The State Commission signed the act of acceptance for operation of the rebuilt building on May 31, 1935, and on July 1 the tour of the Musical Theater began. V.I. Nemirovich-Danchenko, then the Leningrad Choir Chapel and the Kyiv Musical Comedy.

By October 24, 1935, the theater prepared its first performance - A. Borodin’s opera “Prince Igor”. It has become a tradition to open the season with this piece.

Opera theatre. 2022

The second performance in the repertoire was “Eugene Onegin”. In the first season, a fairly large troupe (45 opera soloists, 50 orchestral musicians, 53 ballet dancers, 57 choir artists) staged (except for those mentioned above) the operas “Aida”, “Rigoletto”, “The Tsar’s Bride”, “The Barber of Seville”, "Pagliacci", ballets "Don Quixote", "Swan Lake" and ballet divertissement.

The theater confidently declared itself

Spectator interest and public attention confirmed the historical necessity of opening the State Opera and Ballet Theater in Nizhny Novgorod. This “was the largest event in the musical life of the city in the 30s”

On February 10, 1937, the theater was named after A.S. Pushkin. In 1994 he received the title of “academic”.

In 1986, the First All-Russian Pushkin Festival of Opera and Ballet “Boldino Autumn” took place. Since the second festival, which took place in 1988, “Boldino Autumn” has been held annually.

In September 2022, the large-scale reconstruction of the theater, which began in June, was completed. The façade, auditorium and interior have been restored

Description of the design of the injection engine power system

The vehicle's power system is designed to store fuel reserves, purify fuel and air from foreign impurities, and supply air and fuel to the engine cylinders. The injection engine power supply system consists of a fuel tank, an electric fuel pump with a fuel level indicator sensor, fuel lines, a fuel filter, a fuel rail with injectors, an air filter, air supply hoses, a throttle valve with a drive, and a fuel vapor recovery system.

The air entering the engine cylinders is cleaned of dust by an air filter.

Elements of the injection engine power supply system:

1 - air intake; 2 — air filter housing; 3 — air supply hose to the throttle body; 4 — throttle body with idle speed regulator; 5 - fuel rail; 6 — fuel filter; 7 — electric fuel pump with fuel level indicator sensor; 8 - gravity valve; 9 - bypass valve; 10 - safety valve; 11 — fuel tank; 12 - adsorber

Air filter housing

installed in the engine compartment on three rubber supports. The filter element is replaceable and made of special paper. To prevent contaminated air from leaking into the intake tract, there is a sealing edging on top of the element. To replace the filter element, the filter cover is removable. The purified air passes through the mass air flow sensor along the hose to the throttle valve.

Transmission

About the fuel pump on the VAZ2107 injector

If the car engine does not start, then various factors can be the reasons for such consequences. One of these factors may be a gas pump, the main purpose of which is to pump gasoline into the engine from the gas tank. The VAZ 2107 has an injector and a fuel pump that is much more reliable than on carburetor cars. Despite this, even on fuel-injected cars the fuel pump can fail.

Canister valve

This element is installed on all car injectors, and the “Seven” was no exception. What is this element? The adsorber valve is a kind of can installed in the engine compartment near the air filter and filled with activated carbon. What is it for? The adsorber valve on the Semerka serves to condense and absorb gasoline vapors. When fuel vapor evaporates, it turns back into liquid and is sent back to the engine power system.

How to check this element? The main sign of a malfunction is the accumulation of gasoline vapors and a pungent odor in the cabin. The problem is also accompanied by dips at idle and loss of power during acceleration. If the tank hisses when opening, it means that the adsorber valve has become unusable. It is not necessary to change the entire jar - just one valve is enough. After replacement, the car works properly again, and strong odors no longer penetrate the interior.

Fuel tank for VAZ 2107

The VAZ 2107 is a legendary car, one might say. Firstly, this is the last representative of the VAZ classic, and secondly, it is a car in which both a carburetor and an injector were used to supply fuel. Today, the last cars of this brand that came off the assembly line still work properly. The only weak point of perhaps one of the most famous cars is not very good hardware. The VAZ 2107 injector tin is very susceptible to corrosion. Due to this very unpleasant feature, the gas tank can also develop an unexpected leak.

So that you are always prepared for such situations, in this article we will briefly go over the design features of the VAZ 2107 gas tank with an injector system. Let's talk about how to dismantle the fuel tank yourself and how to repair it both in an emergency and in a normal situation.

Gas tank on VAZ 2107

Is it dangerous to drive with low fuel in the tank?

Many people do not know, but in addition to the risk of being left without fuel if the warning about low fuel level is ignored, there are a number of problems that any car owner who often drives on an empty tank may encounter.

• For example, frequent trips on an empty tank can prematurely damage the catalyst in the exhaust system, which will have to be repaired or purchased a new one, which is associated with huge financial expenses.
• Frequent trips with low fuel levels in the tank can damage the fuel pump. The fact is that the fuel that we fill at gas stations is actually not clean (especially in Russia) and it contains various fractions of pollution that settle at the bottom of the tank. When the fuel level is low, we risk that such sediment may enter the fuel system through the fuel pump. Especially when the fuel is completely running out. It is at this moment that sediment particles from the tank can enter the fuel pump. At a normal fuel level, such a risk of contamination of the fuel system is minimal.

So if you do not want to damage your car, then refuel your car regularly and on time, without bringing the fuel level to low levels that lead to the appearance of a burning lamp on the dashboard.

Design features of the VAZ 2107 gas tank

The design of a VAZ 2107 gas tank with a classic pure water injector system. The entire VAZ family, from the seven to the kopeck, has exactly the same fuel tanks. The actual gas tank of the VAZ 2107 has a volume of just over 40 liters, with about three or four more going into its neck . That is, in fact, fully filling the seven is about 45 liters of fuel. However, the main thing is that if your car is already quite old, the condition of the fuel tank must be strictly monitored, otherwise it is fraught with very unpleasant consequences.

Checking the valve with a multimeter

Diagnostics can also be done with a voltmeter. How to check the fuel canister check valve? You need to open the hood and disconnect the wiring harness connector from the valve. Next, connect the negative probe of the multimeter to ground and turn on the ignition. Then bring the positive probe to the wire chip and look at the values ​​of the device. The readings should not be lower than 12 V.

To inspect the valve itself, loosen the hose clamp with a screwdriver and remove the tube outward. Next you need to remove the valve itself by prying it off with a slotted screwdriver. It is necessary to turn on the ignition and apply “plus” and “minus” to the corresponding terminals on the element. If the valve is working properly, you will hear a characteristic click. Otherwise, the element is defective and must be replaced. The cost of a new element is 350 - 370 rubles (suitable for a VAZ of the tenth family).

To replace the valve, you only need a slotted screwdriver. She needs to unscrew the clamps of the gasoline hoses and pry off the edges of the element. The new one must be installed tightly into the grooves until it clicks. Next, put the hoses on the valve and tighten the clamps. At this point, the replacement of the Semyorka adsorber valve has been successfully completed.

How to detect a leaking gas tank

There is no need to worry about noticing a leaking gas tank. If gasoline escapes from the fuel tank, this will be accompanied by the following symptoms:

• Significant increase in fuel consumption. It’s hard not to notice that gas is running out, even if the car is parked.
• There will be a distinct smell of gasoline inside the car.
• Rainbow spots will remain on the asphalt where your VAZ 2107 was parked.

If at least one of the above signs occurs, most likely, your VAZ 2107 with an injector system actually has a leak in the gas tank. There are several options for action in this situation; we will divide them into emergency and planned.

Emergency gas tank repair

If your car’s gas tank leaks on the highway and you can’t get to the nearest car service center without repairs, you can use a few tricks that will help temporarily return the fuel tank to operation.

The simplest and most effective way: seal the gas tank with rubber or plastic. For this we need:

• Superglue or ordinary glue moment.
• A piece of rubber from a tire or a plastic bottle.

So, the first thing you need to do is find the place where the gas tank is damaged, where fuel is escaping. In the case of the VAZ 2107, the injector system is leaking most likely from below; its cause is a hole or corrosion damage. As soon as the damage is detected, we proceed as follows: cut out a piece of rubber or plastic, lubricate it with glue and press firmly against the damage. After a few minutes you can release the patch, it will finally set in a couple of hours, but in any case you can go. You can easily get to a car service center with such a patch; there are cases when car enthusiasts drove with it for several weeks.

Fuel tank VAZ 2107

Another way to seal a hole is with a regular self-tapping screw. Suitable if the damage is small in diameter and you have a rubber seal for the screw. This is done as follows:

• First you need to find the location of the damage.
• Then install the seal on it (a regular piece of a car inner tube will do).
• Screw a self-tapping screw into the seal so that it fits into the gap in the gas tank and plugs it.

It will be possible to get to a car service center with such a simple repair. Moreover, it is better to stop at the first one you come across; the design is extremely unreliable and can fail at any moment.

Scheduled repair of the gas tank

If you notice a leak and decide to fix it with your own hands, the first thing you need to do is dismantle the VAZ 2107 gas tank; the process is similar for both the carburetor and a car with an injector system.

Penalty for draining fuel

Of course, fuel theft occurs not only in large enterprises and by drivers who are responsible for the car. Most often, the victims are ordinary car owners who leave their vehicles in the courtyard of their house. Every thief knows perfectly well how to drain gasoline with a hose quietly at night so that no one notices, and the absence of an alarm simplifies theft. Such criminals can be punished as follows:

1. If the thief is caught, he faces a fine of 80,000 rubles. The fine will be paid by confiscating the person’s income for a period of six months.
2. The court may award correctional labor for 360 hours.
3. The offender can be imprisoned for four months, and in particularly difficult cases - for two years.

If the theft is committed by a group of people, and they illegally enter the premises where the car is parked, for example, a garage or a closed yard, then the punishment may be as follows:

1. The fine automatically increases to 200,000 rubles.
2. Compulsory labor for each thief will be 480 hours, and sometimes correctional labor can last for two years.
3. Forced detention for a year and correctional labor for up to 5 years are applied.

Particular attention should be paid to theft of fuel from an oil pipeline on an especially large scale, in which case the punishment will be especially severe. The fine increases to 500,000 rubles, and the term of imprisonment will be at least six years

When wondering whether it is possible to drain gasoline from a car and go unpunished, first of all you need to understand that any theft will sooner or later be discovered, regardless of the size of the crime. Petty theft can result in imprisonment for 15 days, and larger theft can result in imprisonment for up to 10 years.

Dismantling the gas tank

• So, first we remove the plastic casing under which the gas tank is hidden. It is secured with screws that can be unscrewed with a Phillips screwdriver.
• Now disconnect the power wires from the fuel sensor. You can simply pull them up and remove them from the contacts.
• Next, unscrew the fastening of the fuel hose and pull it out of place using pliers.
• Then unscrew the bolt of the clamping plate securing the VAZ 2107 gas tank with the injector system.
• Now you can unscrew the filler cap and carefully remove the gas tank.

Next, all that remains is to seal the gap in the gas tank. There are many repair methods, from cold welding to sealing the tank with tar. Let's take the simplest and least expensive path.

Repair with improvised means

If you are away from a garage or home where you have the necessary tools to remove the tank, you can carry out emergency repair work. For this you will need to have on hand; “Moment” glue or any other composition for rubber or plastic; a piece of tire, thin rubber or plastic bottle.

Look for a leak on the fuel tank; most often it is located at the bottom, since the tank is corroded by moisture or holes. Glue the patch to this place, hold it for a few minutes and leave for 2-3 hours until the composition has completely set. After such repairs, you will easily get to the nearest service station. There have been cases where motorists used a tank patched on the road for up to several weeks, but you should hurry up with major repairs, as sometimes patches do not help.

For the second emergency repair option, you will need to have a self-tapping screw on hand. If the diameter of the hole in the tank is small, then it is advisable to screw a simple self-tapping screw into it with a rubber or neoprene washer put on it. You can make your own washer from a piece of rubber bladder. In this case, screw the screw directly through the small rubber flap.

Remember that any of the described repair methods is a temporary measure. Stop at the nearest car service center so as not to encounter a more global problem while traveling or away from populated areas if you often go on intercity trips.