How to change the air filter on a VAZ 2107 with your own hands?

As the name suggests, the VAZ 2107 air filter (injector) is designed to clean the air supplied to the combustion chamber from dust. A clogged filter creates additional resistance to passing air. As a result, the composition of the air-fuel mixture changes, fuel consumption increases and engine power decreases. If the filter is damaged, it will allow dust particles and grains of sand to pass through, which, when entering the engine, will begin to act as an abrasive, increasing wear on the rings and cylinder surface. Therefore, the filter must have the proper density, which will not allow dust to enter the engine, but will not create unnecessary resistance to air flow.

Article number and cost of the original VAZ 2107 air filter

The original air filter for the carburetor VAZ 2107 has article number 2101-1109100. Its price is 80-200 rubles.

A completely different air filter is installed on the injector. Consumables are not interchangeable. The article number of the filter element for the injection VAZ 2107 is 2112-1109080. The cost of such a consumable ranges from 200 to 340 rubles.

Third-party manufacturers also produce filter elements for the VAZ 2107. Among their products, there are many decent options at an attractive price. The tables below present the best analogues, which are recommended to be taken instead of native filters.

Table - Analogues of the original air filter 210101109100

Table - Alternatives to branded air filter 2112-1109080

Eliminating the causes leading to the appearance of oil in the pipe

Factors leading to an increase in crankcase gas pressure and, as a consequence, to the appearance of oil in the air filter duct were discussed above. The first of these is a high level of lubricating fluid in the engine crankcase. When the oil is above the maximum level, the internal free volume of the crankcase decreases, which leads to an increase in pressure in it. In this case, it is necessary to drain the excess and subsequently try to maintain the engine lubrication level in the middle between the MAX and MIN marks on the dipstick.

When the air filter is clogged, this not only leads to a decrease in engine power and the possibility of a number of other malfunctions, but also to a change in pressure in the crankcase. When the motor does not have enough air, excess pressure is created in the air supply channels. If all connections are sufficiently sealed, then the missing volume of gas is sucked through the breather connected to the filter pipe from the crankcase. So in this case, oil vapors enter the air duct. A simple and quick way out of this situation is to replace the air filter (if it is really dirty and the reason for the appearance of oil in it).

It is clear that if the crankcase ventilation system (channel) does not work (clogged), then there will be increased gas pressure in the latter. We are talking about special channels in the cylinder block and a thin hose between the throttle valve and the valve cover. These means of crankcase ventilation tend to coke if low-quality or old oil that is not replaced on time is used, which begins to lose its properties, turns into a resin state and clogs the internal lumen of the channels. Also, in winter, in severe frost, these crankcase ventilation systems can freeze - accumulated condensate gets trapped in them.

In the latter case, it is enough to run the engine at idle speed and it is better to do this as a preventative measure for about half an hour each time you start it in the morning. If the ventilation channels are clogged with dirt and oil, you will have to clean and rinse them. Start with the tube between the throttle body and the valve cover. If this does not help, you will have to open the engine and clean the channels in it. It is better to entrust this work to specialists.

The case where the cause of oil getting into the pipe was an exhaust system clogged with molten catalyst is extremely rare. It is described only once and for the VAZ 21124 car. The author (owner of the car) of this story claims that in his car the air filter itself was filled with oil. After all the washing and cleaning of the engine, adjustment and replacement of some parts, no changes occurred. There was no time to disassemble the engine itself, since it did not smoke, although it was dull, it ate a lot of fuel, and besides, a melted catalyst was suddenly discovered. After cleaning the exhaust system, according to the author, the car began to work perfectly and the air filter pipe has not been contaminated with oil leaks since then.

Replacement frequency

Replacing the air filter on a VAZ 2107 is required every 20-30 thousand km. Installation of a new consumable may be required earlier if:

• end-to-end mechanical damage to the filter element was discovered;
• there are significant deformations;
• the power of the power plant has dropped significantly;
• the car covered a significant section of the road on a dusty dirt road;
• there is no accurate information about the previous mileage at which the filter was replaced;
• There is an increase in fuel consumption, while maintaining the same external factors.

Options:

• Cabin filter VAZ 2107 regular
• Cabin filter VAZ 2107 carbon

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The process of replacing the air filter on a VAZ 2107 with a carburetor

Replacing the air filter on a VAZ 2107 with a carburetor is carried out according to the step-by-step instructions presented below.

• Unscrew the three fastenings of the air filter cover.

• Remove the filter element.

• Cover the pipe that goes into the carburetor with a rag.

• Clean the filter housing from dirt.

• Install a new filter element.
• Reinstall the air filter cover. It is important to follow the labels. At temperatures above 5°C, the red mark should be located near the warm air supply pipe. Otherwise, it should point to the air intake pipe, which is marked with the letter “B”. Correct installation of the cover changes the location of the fixed damper with a seal and has a good effect on the operation of the power unit.

• Carry out a test start of the engine.

Exhaust gas release

Exhaust gases are discharged through the exhaust manifold, front pipe 24, additional front mufflers 21 and rear 20, as well as through the main muffler 17. The intake pipe and mufflers are inseparable, connected to each other by sliding the pipes into each other and secured with clamps 19. In addition, one of the connected tubes has a flared end with two diametrically spaced longitudinal slots. During assembly, the above slots must be completely covered with the sliding tube.

The exhaust manifold is made of cast iron and has four quad exhaust pipes. The collector is attached with studs to the head using metal-asbestos or ferronite gaskets. The manifold at the bottom has a flange to which the exhaust pipe of the mufflers is attached.

Air filter for VAZ 2107

From the name “air filter” it becomes clear that the device is intended for air purification. On VAZ 2107 cars, the air filter is a mandatory device that cleans the air supplied to the engine combustion chamber. If it becomes clogged, the debris will prevent air from flowing into the engine, so it is very important that the part in question in the car has always been in good condition.

Downpipe

The suction pipe consists of a flange, two pipes, a gas pipe 23, welded from two molded halves, closed on both sides with thermal insulating asbestos gaskets and a thin-walled protective casing. The inlet pipe is attached to the exhaust manifold with studs using four brass nuts, and also to a bracket secured to the gearbox using a clamp 22. An asbestos sheet gasket, reinforced with adhesive tape, is inserted between the inlet pipe and the steel manifold. Since 1988, the gasket has been made of elasto-metal. Disposable gasket and nuts.

The mufflers consist of two molded half-bodies welded together. Inside the mufflers there are perforated pipes and partitions that form chambers, each of which suppresses noise in a certain frequency range.

The main muffler 17 has two molded half-bodies 25 and 35, perforated pipes and partitions 28, 30 and 34, of which two are blind partitions. For thermal insulation and noise reduction, sheets of asbestos or other insulating material are laid under the upper and lower half of the shell.

The main muffler halves and internal perforated pipes are made of stainless steel for improved corrosion resistance. The exhaust pipe 14 VAZ-2106 can have a decorative gas outlet made of stainless steel.

Additional front and rear mufflers, unlike the main muffler, have only one blank partition each; their perforated tubes are arranged coaxially and have throttling diaphragms, as in the first released car models. Installing diaphragms when repairing a car is not recommended due to further loss of engine power due to exhaust gases.

Mufflers with assembled pipes are attached to the body floor with two rubber straps 16 for the main muffler body and a rubber cushion for the exhaust pipe 14.

What is an air filter

An air filter is a device that filters the air entering the fuel system. All modern cars are equipped with air filters, including the Lada family with carburetor and injection systems.

The main purpose of the air filter is to clean the incoming air from sand, dust, soot, midges, small particles, plant seeds and other substances. The absence of the product in question will lead to the fact that all of the above-mentioned substances will enter directly into the fuel system, and after a short time it will simply be clogged.

It is important to know! All types of cars, including the VAZ 2107, must have an air filter, and it is necessary to monitor its condition and, if necessary, replace it in a timely manner.

A clogged element negatively affects engine performance, since air must pass through the device to enter the fuel system. This reduces engine power accordingly. The resistance of the product in question is quite high, but in its absence the consequences for the car will be simply catastrophic.

In a car of the classic VAZ 2107 family, the design of filters for the injection and carburetor injection systems is different. For the injector, the product in question has a rectangular shape, and on carburetor engines round-shaped filters are installed. Both types of products consist of a plastic housing and a filter element. This element is presented in the form of paper, which contains micro-pores and traps all types of small particles.

Since the creation of the part in question, many varieties have appeared. Types of air filters are divided into the following options:

1. Inertial. The first products that are now used extremely rarely.
2. Inertia-oil. They are also considered obsolete, so they are used extremely rarely today. Their main difference from inertial ones is the presence of oil at the bottom of the body of the product, which is intended to hold large and small particles.
3. Paper. Some of the most common types are shown in the photo above.
4. Products with zero resistance. Instead of a paper element, foam rubber or cotton fabric is used.

How often to change the air filter on a car

Replacing the part in question depends on the condition of the filter element. The condition of this element is influenced by factors such as the terrain in which the vehicle is operated, the frequency of operation of the vehicle, and the seasons. The VAZ-2107 injector air filter needs to be replaced somewhat less frequently than on carburetor models. In some manuals you can find a figure of 30 thousand kilometers - this is the recommended mileage for replacing the part in question. In reality, this figure does not mean anything, since the main condition for replacement is clogging of the filter element.

The part in question cannot be repaired, but if the filter elements are in good condition, that is, there is no damage and its color has not changed much. It is necessary to change the air filter because when it is clogged, fuel consumption increases. If the injection “sevens” have an on-board computer that displays an increase in consumption, then on the classics you have to rely on your memory.

How to replace it yourself

Let's look at how to replace the air filter on a VAZ-2107 car with a fuel injection system. The replacement procedure is as follows:

1. First you need to open the hood, then use a screwdriver to unscrew the 4 bolts securing the air filter housing.
2. Lift the air cover by applying slight force.
3. After this, you can safely remove the product.
4. The inside of the lid must be wiped with a damp cloth.

5. After this, you need to place a new element inside the housing in the direction of the arrow and install the cover in place, screwing it with 4 bolts.

In conclusion, it is worth noting that the cost of the product in question is low enough to risk clogging the fuel system. A regular paper filter costs about 150-200 rubles, so be sure to check this product periodically and replace it in a timely manner.

In order to change the air filter on a carburetor seven, you need to perform similar actions, which you can learn about from the video below.

Source

Possible breakdowns and their causes

A separate issue for many car owners is possible breakdowns associated with the filter.

The main attention is focused on leaks, oil starvation, failure of engine components

Leaks occur when connections are worn or loose

To eliminate them, pay attention to rubber bands, sealants, washers and other sealants. It is recommended to replace them as a preventive measure along with replacing the oil filter.

Leaks can also occur due to faulty hoses and components. This is usually due to damage, cracks, and corrosion. To eliminate breakdowns, it is also necessary to completely replace the faulty part.

Oil starvation is a consequence of a lack of lubricating fluid in the working mechanisms of the engine. It can be caused by two factors: a decrease in filter capacity or lubricant leakage due to a leak. To solve the first option, cleaning the filter element is suitable as a temporary measure, but this does not eliminate the need to completely replace it.

Engine breakdowns are a consequence of wear and tear on components. Solving such problems requires certain training and qualifications. Often the problem can be solved by simply replacing the damaged unit, however, if you lack experience in these matters, it is recommended to contact specialists.

Article number and cost of the original VAZ 2107 air filter

The original air filter for the carburetor VAZ 2107 has article number 2101-1109100. Its price is 80-200 rubles.

A completely different air filter is installed on the injector. Consumables are not interchangeable. The article number of the filter element for the injection VAZ 2107 is 2112-1109080. The cost of such a consumable ranges from 200 to 340 rubles.

Third-party manufacturers also produce filter elements for the VAZ 2107. Among their products, there are many decent options at an attractive price. The tables below present the best analogues, which are recommended to be taken instead of native filters.

Table - Analogues of the original air filter 210101109100

Table - Alternatives to branded air filter 2112-1109080

Replacement frequency

Replacing the air filter on a VAZ 2107 is required every 20-30 thousand km. Installation of a new consumable may be required earlier if:

• end-to-end mechanical damage to the filter element was discovered;
• there are significant deformations;
• the power of the power plant has dropped significantly;
• the car covered a significant section of the road on a dusty dirt road;
• there is no accurate information about the previous mileage at which the filter was replaced;
• There is an increase in fuel consumption, while maintaining the same external factors.

Source

Why change

But really, why? If you buy a filter, let it sit until the end of the car's service life. But no, you can’t do this under any circumstances, otherwise the car will really last very little.

Clogged air filter

There are several reasons why the air purifier should be replaced on a VAZ 2110.

1. Pollution. As you use it, the element becomes dirty. The formation of contaminants leads to increased fuel consumption and difficulty starting the engine.
2. Lack of proper air draft in the cabin, which makes it very stuffy inside. In parallel with this, the engine may operate unstably and floating speeds may appear. All this suggests that it is time for a replacement.
3. Comprehensive service. When buying a car second-hand or during scheduled maintenance, the new owner, as a rule, immediately changes all consumables, fills in new oil, and installs new filters.