Fuel filter for VAZ 2107 injector - how to select and replace

FUEL FILTER VAZ 2107

The main function of the fuel filter is to clean the fuel in the system from various impurities, resins and water vapor. If you exclude filtration as a process from the functioning of the fuel system, then dirt and foreign substances that get into the engine will quickly damage the piston elements and cylinders.

Traditionally, two fuel filters are installed in the VAZ 2107 system to ensure thorough cleaning of gasoline. However, the first models of the “seven” had only one filter element.

ROUGH CLEANING

The filter, which is responsible for the initial (coarse) purification of gasoline, is located directly in the gas tank and is fixed to the fuel intake. VAZ 2107 injection models can be equipped with a filter both inside the tank and in front of it. The essence of the actions of this filter is expressed in the fact that the fuel pumped by the pump first enters the filter element - the mesh. The mesh cells do not allow large debris to pass further.

That’s why the filter is called “coarse cleaning”, since it is designed to remove only large additives and dirt.

It is worth emphasizing that carburetor and injection models of the VAZ 2107 can be equipped with coarse filters of completely different shapes and dimensions. However, regardless of the equipment, the procedure for replacing these components is identical and does not require special skills.

The coarse filter has the form of a mesh with cells to retain large debris

FINE CLEANING

The fine filter on carburetor versions of the VAZ 2107 is located directly under the hood at the engine inlet. You can immediately see it, since fuel lines are connected to the device. The usual location of the fine filter is near the brake fluid container.

On the injection "sevens" the fine filter is located not very conveniently for replacing it - under the bottom of the car.

The task of this element is to control the purification of gasoline: its paper inserts trap even the smallest specks of dust.

The filter consists of a housing and paper inserts, between which even small-sized debris is retained

You need to know that the fuel filter for the carburetor cannot be installed on a model with an injector. They have a completely different structure and, if the installation rules are violated, they can damage the motor unit.

Electrical diagram of VAZ 21074

In VAZ 21074 cars, electrical energy is delivered to consumers using a single-wire circuit: the “positive” terminal of each electrical device is powered from a source, the “negative” terminal is connected to “ground,” i.e., connected to the vehicle body. This solution simplifies the repair of electrical equipment and slows down the corrosion process. All electrical appliances of the car are powered from the battery (with the engine off) or the generator (with the engine running).

The wiring diagram of the VAZ 21074 injector contains an ECM, an electric fuel pump, injectors, and engine control sensors

Wiring diagram VAZ 21074 injector

The injection versions of the “Seven” released from the factory assembly line have the following indices:

• LADA 2107–20 - in accordance with the Euro-2 standard;
• LADA 2107–71 - for the Chinese market;
• LADA-21074–20 (Euro-2);
• LADA-21074–30 (Euro-3).

The injection modifications of the VAZ 2107 and VAZ 21074 use an ECM (electronic engine control system), an electric fuel pump, injectors, control sensors and monitoring engine parameters. As a result, there was a need for additional under-hood and interior wiring. In addition, the VAZ 2107 and VAZ 21074 are equipped with an additional relay and fuse box located under the glove compartment. The additional unit is supplied with wiring that supplies:

• fuses: main relay power circuits;
• controller constant power supply circuits;
• electric fuel pump relay circuits;

Additional fuse and relay block VAZ 2107 injector located under the glove compartment

Providing electricity

The G7 is responsible for providing consumers with electricity:

• Battery voltage 12 V, capacity 55 Ah;
• generator type G-222 or 37.3701;
• voltage regulator Ya112V, which automatically maintains the voltage within 13.6–14.7 V.

Diagram of the power supply system for the VAZ 21074 injector includes a generator, battery and voltage regulator

Engine starting

The starting system in the VAZ 21074 is a starter and ignition switch powered from the battery. There are two relays in the starter circuit:

• auxiliary, which supplies power to the starter terminals;
• retractor, due to which the starter shaft engages with the flywheel.

The starting system in the VAZ 21074 is a battery-powered starter with a relay and an ignition switch.

Ignition system

In early versions of the seventh VAZ model, a contact ignition system was used, which included:

• ignition coil;
• distributor with contact breaker;
• spark plug;
• high voltage wiring.

The VAZ 21074 contact ignition system consists of a coil, distributor, spark plugs and high-voltage wires

In 1989, the so-called contactless ignition system appeared, the circuit of which included:

1. Spark plug.
2. Distributor.
3. Screen.
4. Hall Sensor.
5. Electronic switch.
6. Ignition coil.
7. Mounting block.
8. Relay block.
9. Key and ignition lock.

In 1989, a contactless ignition system appeared, to the circuit of which a Hall sensor and an electronic switch were added

“Sevens” with injection engines use a more modern ignition circuit. The operation of this circuit is based on the fact that signals from the sensors are sent to the ECU (electronic control unit), which, based on the received data, generates electrical impulses and transmits them to a special module. After this, the voltage increases to the required value and is supplied to the spark plugs through high-voltage cables.

In injection "sevens" the operation of the ignition system is controlled by the electronic control unit of the ECU

Outdoor Lighting

The external lighting system includes:

1. Block headlights with dimensions.
2. Illumination of the engine compartment.
3. Mounting block.
4. Glove compartment lighting.
5. Instrument lighting switch.
6. Rear lights with dimensions.
7. Illuminated numbers.
8. Exterior lamp switch.
9. External lighting indicator lamp (in the speedometer).
10. Ignition.

The VAZ 21074 external lighting connection diagram will help in troubleshooting headlights and tail lights

Auxiliary equipment

Auxiliary or additional electrical equipment of the VAZ 21074 includes:

• electric motors: windshield washer;
• windshield wiper;
• heater fan;
• radiator cooling fan;

The connection diagram for windshield wipers uses:

1. Gearmotors.
2. ED headlight washer.
3. Mounting block.
4. Egnition lock.
5. Washer switch.

Windshield wiper motors drive a trapezoid that moves the wipers across the windshield

PROCEDURE FOR REPLACING FUEL FILTERS ON A VAZ 2107

Any mechanism in a car will sooner or later need replacement or restoration. It should be noted that owners of VAZ 2107 carburetor models have the opportunity to wash the filter, removing all deposits from it, and use it again. The installed filters on injection VAZs cannot be washed.

WHEN TO CHANGE

In any case, it is more advisable to immediately replace the fuel filters rather than waste time washing and cleaning them. Not all car enthusiasts know when exactly these elements need to be replaced. Of course, each filter (coarse and fine) has its own designated resource, but you should not wait until it runs out.

As a rule, obvious signs of malfunctions in the operation of the fuel system filter elements are:

• jerks and failures in the operation of the power unit (the first signs can be noticed at low speed or in idle mode);
• decrease in traction when accelerating, overtaking, driving uphill;
• problems starting the engine;
• increased fuel consumption.

According to regulations, the need to replace VAZ 2107 fuel filters occurs on average after traveling 30 thousand kilometers.

If it is heavily contaminated, the filter will not allow gasoline to pass through in full, which is why problems with engine operation begin.

WHAT FILTER TO BUY

If the car owner intends to change the filter on a VAZ 2107 on his own for the first time, he will need to choose the best option in the store. It is important to know that the prices of analogues from domestic and Western manufacturers are approximately the same, however, experienced car owners are advised to choose Mahle and Big filters. These devices are more reliable and durable, and the risk of purchasing a defective filter is virtually eliminated.

You can evaluate the effectiveness of the filter by its manufacturing quality and paper quality. The best way is to disassemble the used filter. Those. We remove the used filter, saw it and see how and what it is made of. I have never seen anything better than the MAHLE KL83. There are no springs inside, the paper filters perfectly (black on the outside and light on the inside), the filter paper is not glued to the body (i.e. no glue is used), but is pressed into liquid plastic, which, after cooling, ideally maintains the pitch between the corrugations. Aluminum body. I sawed ZOLEX, SCT and FILTRON. These MAHLE filters don't even hold a candle. The paper frays on them. But this is my purely personal opinion.

Alexey https://www.autolada.ru/viewtopic.php?t=220918

One of the most popular filters among car enthusiasts

REPLACING THE FINE FUEL FILTER

In order to remove the old and install a new fine fuel filter on a VAZ 2107, you will need:

• flat screwdriver;
• 8 wrench.

You will also need rags during the work to avoid large leaks of gasoline.

The dismantling procedure itself will be somewhat lengthy, since you will first have to reduce the fuel pressure in the system:

1. Fold back the rear row seats in the cabin.
2. Find the gas tank hatch under the carpet.
3. Using a screwdriver and keys, unscrew all the fasteners on the hatch.
4. Disconnect all connected wires from the fuel pump housing.
5. Start the engine and let it run until it stalls due to lack of gasoline.

Before replacing the fine filter, you need to relieve the pressure in the VAZ fuel system

Further, the operating algorithm will vary depending on what type of motor the machine is equipped with.

OPERATING REGULATIONS FOR CARBURETTOR MODELS

After releasing the pressure in the fuel system, you can begin work on removing the fine filter from the VAZ 2107:

1. Open the hood.
2. The filter element is located next to the brake fluid reservoir and is equipped with two hoses - for fuel supply and fuel outlet.
3. Disconnect the inlet hose first, then the outlet hose. Residues of fuel will invariably appear, so it is recommended to immediately place a rag under the filter or plug the hoses with bolts of suitable size.
4. Remove the old filter from the system.
5. Install a new one in its place, connecting the hoses and making sure the connections are tight.

VIDEO: OPERATION PROCEDURE

That is, replacing the fine filter is not particularly difficult and takes no more than 10 minutes.

OPERATING REGULATIONS FOR INJECTION MODELS

More modern VAZ 2107 models equipped with an injector are equipped with a fine filter attached under the car body. Therefore, after releasing the pressure in the system, it is necessary to drive the car into a pit or overpass to make it easier to crawl under the car:

1. The filter housing is attached to the lower beam of the car - it is easy to notice, since two thick fuel supply hoses are connected to the device.
2. Using a regular screwdriver, you will need to loosen the clamps and remove the filter housing.
3. Leaks of residual fuel from the hoses can be eliminated with plugs or rags.
4. Install a new one in place of the old filter, making sure that the clamps and hoses are intact.

VIDEO: OPERATION PROCEDURE

Thus, this work is not particularly difficult, the only inconvenience is that you will need to crawl under the body.

After replacement, you need to supply power to the fuel pump, return the rear row of seats in the cabin to the reverse position and check the tightness of the connections - start the engine.

The VAZ 2107, both the carburetor and the injector, easily lends itself to such a procedure as dismantling and installing fuel filters. It is important to follow all safety rules and carefully tighten all connections to ensure a quality installation of the new filter.

Fuel pump repair

To replace or repair the pump, it will need to be removed from the engine. Tools you will need:

• 13 mm wrench;
• crosshead screwdriver.

Removing the fuel pump

We dismantle the unit in the following order:

1. Wipe the pump with a rag.
2. Disconnect both hoses (inlet and outlet) by loosening the clamps with a screwdriver.
3. We pull the hoses from the fittings.
4. Using a 13 mm wrench or a socket with an extension, unscrew the 2 fastening nuts.
5. Carefully remove the fuel pump.

To replace the rod, remove it from the heat-insulating spacer

Once a situation arose on my car when engine oil was leaking from the installation site of the fuel pump (in the area of ​​the gaskets). It was not immediately possible to identify the cause. At first I made mistakes on the gaskets between the engine block and the spacer, as well as between it and the fuel pump. I replaced them, but did not achieve a positive result. After dismantling the mechanism again, I examined all the elements more carefully and discovered that the heat-insulating spacer had a crack through which oil was leaking. I had to replace it, after which the problem disappeared. In addition to the described case, there was a similar situation when oil was leaking at the location of the fuel pump. This time the pump itself turned out to be the culprit: oil was oozing from under the axis of the manual fuel pumping lever. There were two options to get out of the situation: accept it or buy a new product. I bought and installed a new pump (DAAZ), which to this day works properly and does not leak.

Disassembly

To disassemble the fuel pump you need to prepare:

• 8 and 10 mm wrench;
• Phillips screwdriver.

The disassembly procedure is as follows:

1. Unscrew the bolt holding the top cover.
2. We dismantle the cover and remove the filter from the fine mesh.
3. Unscrew the 6 screws securing the two parts of the device body.
4. Separate the body parts.
5. Rotate the diaphragms 90° and remove them from the body. We remove the spring.
6. Unscrew the nut with an 8 mm wrench.
7. We disassemble the diaphragm assembly, removing the elements sequentially.
8. We examine the diaphragms. If there are delaminations, tears or the slightest traces of damage on the elements, we replace the diaphragms with new ones.
9. We clean the filter, and then reassemble the pump in the reverse order.

When installing, the mesh filter must be positioned with the hole above the valve

Replacing valves

The VAZ 2107 fuel pump valves are included in the repair kit. To replace them, you will need a needle file and suitable attachments for dismantling.

The fuel pump repair kit contains all the necessary parts for repairs.

The disassembly sequence is as follows:

1. We remove the cores using a needle file.
2. Press out the valves using suitable fittings.
3. We install new parts and core the seat in three places.

Installing and adjusting the fuel pump

Installation of the fuel pump on the “seven” is carried out in the reverse order of removal. The process itself is not difficult

However, attention should be paid to the gaskets, since their thickness has a direct impact on the operation of the mechanism

The fuel pump is sealed with several gaskets:

• adjustable (thickness 0.7–0.8 mm or 1.1–1.3 mm);
• thermal insulation;
• sealing (0.27–0.33 mm).

The adjusting and sealing gaskets differ only in thickness. There must always be a sealing gasket between the engine block and the heat-insulating element.

The fuel pump is adjusted as follows:

1. Install the sealing gasket.
2. We insert the rod into the spacer.
3. Place the spacer on the studs.
4. Install the adjusting shim.
5. We press the set of shims tightly against the block, after which we slowly turn the engine crankshaft by the pulley with a wrench, choosing a position of the rod in which it protrudes minimally in relation to the surface of the adjusting shim.
6. Use a metal ruler or caliper to determine the output of the rod. If the value is less than 0.8 mm, change the adjusting seal to a thinner one - 0.27–0.33. At values ​​of about 0.8–1.3 mm, which is the norm, we do not change anything. For larger values, install a thicker gasket (1.1–1.3 mm).

Replacing the fuel filter VAZ-2107i injector

Replacing the fine fuel filter on the VAZ-2107i is recommended every 30 thousand kilometers, depending on the quality of the gasoline being filled. A typical sign of its clogging is the car jerking, first at high and then at low speeds - in this case, the filter should be replaced immediately.

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Replacing the fine fuel filter on the VAZ-2107i is recommended every 30 thousand kilometers, depending on the quality of the gasoline being filled. A typical sign of its clogging is the car jerking, first at high and then at low speeds - in this case, the filter should be replaced immediately.

Before replacement, it is necessary to reduce the pressure in the system. To do this, you need to wait at least 2-3 hours after stopping the engine or forcefully reduce the pressure: remove the fuel pump fuse (third from the left under the glove compartment),

Start the engine and let it run until the remaining fuel is completely exhausted, until it stalls; run the starter for 2-3 seconds to equalize the pressure in the pipeline.

We will need:

• Open-end wrenches for 13, 19
• O-rings
• Rags

For safety reasons, disconnect the terminals from the battery and set up a fire extinguisher.

Please note that some fuel remains in the pipeline and filter. It is better to replace it on a cold engine.

Holding the fuel filter fittings with one wrench, with the second we unscrew the nuts of the fuel pipe tips and move them to the side.

Loosen the bolt securing the clamp and remove the filter.

We insert the new one according to the fuel direction arrow on its body.

At the ends of the fuel pipes, we check the presence and integrity of the O-rings.

In any case, it is better to replace them with new ones, purchasing them in advance with a reserve.

We put everything in reverse order.

The tube nuts should not be over-tightened, as the rubber rings may be damaged and will have to be replaced again.

We insert the fuse and battery terminals into place, turn on the ignition until the pump pumps up the required pressure in the system. We check the joints for leaks and tighten them if necessary.

We start the engine and check for leaks again.

Replacing the VAZ 2107 fuel filter (injector): instructions, photos and videos

The fuel filter performs an important mission: it cleans the fuel from foreign impurities, thereby protecting the injectors from clogging. If the car is operated in the CIS, the condition of this part should be given special attention, because the quality of the fuel does not always meet the requirements. According to the manufacturer, the VAZ 2107 injector fuel filter should be replaced every 30 thousand km.
But in reality, the filter can become clogged much earlier if you use poor quality fuel. The need to replace the filter can be seen by a decrease in vehicle power and an increase in fuel consumption.

To replace the filter yourself, you do not need any special tools or special knowledge, and the whole process, if done correctly, will take an hour.

Necessary tools and materials to replace the fuel filter:

Fuel filter for VAZ 2107 – where to find it, which one to install

On a VAZ 2107 with a carburetor (model 1982 - 2012), the fuel filter is installed in the engine compartment. It is the same for all sevens with a carburetor. Usually has a transparent plastic body of a cylindrical shape. In a certain way, its transparency is a plus, since you can always control the condition of the filter element. The article number of the original spare part is 21080-1117010. Sold in branded packaging from LADA.

The most famous and frequently used analogues are presented in the table below.

LADA 21080-1117010 (original)
SCT ST 337

Filtron PS 822

Changing the fuel filter on carburetor 2107 is quite simple. There is no pressure in the fuel system of this car. You just need to prepare a special container into which the remaining fuel from the hoses will drain after disconnecting the filter.

Fuel filter for 2107 injector

On injection VAZ 2107 (model 2008–2012), the fine fuel filter is also located under the hood. It has the shape of a cylinder, but not in a transparent plastic, but a metal case. Each pipe has a thread for attaching to fuel lines. The original filter article number is 21120-1117010.

The most popular substitutes for this filter are below in the table.

LADA 21120-1117010 (original)

BIG Filter GB-302

BOSCH 0986450124

Unlike carburetor cars, the injectors need to be relieved of pressure before replacing the fuel filter. To do this, you first need to disconnect the pump fuse (F3) and start the engine so that it exhausts the remaining gasoline in the system. After it stalls, you need to remove the terminal from the battery, put the fuse back, and start replacing the fuel filter itself.

The mesh filter (coarse) is located in the fuel tank and attached to the pump. This spare part does not have its own article number, because it is sold only complete with a pump. Its article number is 21083-1139009-01. If you only need a mesh, you can use the most popular analogue - QML FP-1002. Price - 100 rub.

When to change the fuel filter on a VAZ 2107?

According to maintenance regulations, the fuel filter on a carburetor “seven” must be changed at least 15 thousand kilometers. Since the fuel filter on this vehicle configuration is quite cheap, and replacement is simple, this can be done more often. On injection engines 2107, the fuel filter needs to be changed every 30 thousand km.

Fuel filter VAZ 2107

To clean the gasoline supplied to the engine, the VAZ 2107 design provides a filter.
During operation, the consumable gradually becomes clogged. This leads to a decrease in filter throughput, which causes instability of the motor. To solve the problem, the consumable requires timely replacement, which is easy to do yourself.

Original fuel filter 21120-1117010

The VAZ 2107 injector has an original fuel filter, article number 21120-1117010. Its price ranges from 200 to 300 rubles. Third-party analogues are available for sale. The best of them are presented in the table below.

Table - Analogues of fuel on the injection VAZ 2107

The carburetor VAZ 2107 uses a proprietary fuel filter 21080-1117010. Its cost ranges from 50 to 120 rubles. Filters for the injector and carburetor are not interchangeable. This is due to the pressure difference in the fuel circuit. In the carburetor VAZ 2107 it is lower, so the consumable is made of thin transparent plastic.

Fuel filter 21080-1117010

For the carburetor VAZ 2107, there are analogues of the original fuel filter on sale. The table below shows the best brands of consumables that perform well during operation on the VAZ 2107.

Table - Alternatives to the original fuel filter for a carburetor VAZ 2107

When it's time to replace

The fuel filter is a replaceable element. Manufacturers of injection cars recommend replacing these devices every 30 thousand km. The filter on the VAZ 2107 must be replaced because the device becomes clogged, losing capacity. This negatively affects the fuel supply system to the injectors, as the pressure decreases.

Contaminated fuel causes malfunctions not only of the injector, but also of the fuel pump, which, due to its duty, has to transport gasoline to the engine compartment of the car. You can determine the need to change the gasoline purifier on a VAZ 2107 by the following criteria:

1. Vehicle fuel consumption increases significantly.
2. The engine power level decreases.
3. Reducing maximum speed.

A decrease in the throughput of the product means that the injectors do not receive gasoline in the required quantity, which significantly affects the power of the vehicle engine.

Sequence of work when changing the filter on a VAZ 2107

To begin with, it should be said that the fuel filter on a VAZ 2107 car is located directly in the engine compartment. To see it, you need to open the hood. The device looks like this, as shown in the photo above.

Replacing the device in question does not present any difficulties, but if the work is being performed for the first time, it is recommended to adhere to the following instructions:

1. First you need to relieve excess pressure in the fuel supply system. This is done by turning off the fuse responsible for the functioning of the fuel system.
2. After this, you need to start the engine and let it run until it stalls on its own.
3. This means that the pressure in the system has been relieved, and you can safely begin replacing the purifier. However, do not forget that before starting work it is recommended to remove the negative terminal from the battery.
4. You need to use open-end wrenches “17” and “19” to loosen the connection of the gasoline cleaner with the pipes, as shown in the photo below.

5. After unscrewing the fittings on both sides of the device, you need to disconnect the suitable tubes. In this case, some gasoline will definitely leak out, which is normal. If the pressure is not initially relieved from the system, then after disconnecting the tube that comes from the tank, a significantly larger amount of fuel will flow out.
6. The cleaner is attached to the car body using a clamp and a coupling bolt. Using a key set to “10”, unscrew the tightening bolt, loosening the clamp.

7. Now you can remove the device and install a new filter element in its place. Assembly work must be carried out carefully. You need to pay special attention to the direction of the arrow, which is indicated on the body of the new product.
8. A tube coming from the gas tank should be connected to the hole from the beginning of the arrow. When replacing, it is advisable to change the O-rings in the tube fittings.

As you can see, you don’t need to be a professional to change the fuel purifier on the “Seven”. It is important to follow the step-by-step instructions and also replace the device in a timely manner. It is better to change this device more often than to do it rarely and too late.

It is worth remembering that the units in question cannot be repaired, so after they become clogged, they need to be replaced.

Replacing the filter on a carburetor "seven"

Carburetor VAZ 2107 cars also need to replace fuel filters. The replacement sequence on a carburetor VAZ-2107 is as follows:

1. When the hoses are disconnected from the device, fuel will begin to flow out, so it is recommended that before starting work, use a container into which gasoline can be drained.
2. To change the filter device, you need to disconnect 2 hoses, which are secured with clamps.
3. After disconnecting the hoses, they should be directed into a container to drain the fuel. There will also be fuel left in the filter, which can also be drained.
4. The new fuel filter is also installed in the direction of the arrow.
5. The hoses are installed in place and secured with clamps.

On carburetor VAZ 2107 cars, the device in question is also located in the engine compartment. This device is held in place by rubber hoses, so additional fastening elements are usually absent. In a carburetor engine there is no pressure in the fuel system, so there is no need to relieve the pressure before starting work. The cost of the device for carburetor cars is several times cheaper than for injection cars, but it is recommended to change them more often. The advantage of a filter for carburetor cars is that the product has a transparent body. This allows you to determine the degree of contamination of the filter part visually.

In conclusion, it is worth emphasizing the importance of the device in question. The absence of a fuel filter would lead to frequent breakdowns in the injector and carburetor, as well as fuel pumps.

To clean the gasoline supplied to the engine, the VAZ 2107 design provides a filter. During operation, the consumable gradually becomes clogged.

This leads to a decrease in filter throughput, which causes instability of the motor. To solve the problem, the consumable requires timely replacement, which is easy to do yourself.

The VAZ 2107 injector has an original fuel filter, article number 21120-1117010. Its price ranges from 200 to 300 rubles. Third-party analogues are available for sale. The best of them are presented in the table below.

Table - Analogues of fuel on the injection VAZ 2107

The carburetor VAZ 2107 uses a proprietary fuel filter 21080-1117010. Its cost ranges from 50 to 120 rubles. Filters for the injector and carburetor are not interchangeable. This is due to the pressure difference in the fuel circuit. In the carburetor VAZ 2107 it is lower, so the consumable is made of thin transparent plastic.

For the carburetor VAZ 2107, there are analogues of the original fuel filter on sale. The table below shows the best brands of consumables that perform well during operation on the VAZ 2107.

Table - Alternatives to the original fuel filter for a carburetor VAZ 2107

Fuel filter location

On injection VAZ 2107, the fuel filter is located in the engine compartment. It is fixed using a clamp with a coupling bolt on the bracket.

Location of the fuel filter on the injection VAZ 2107

On the carburetor VAZ 2107, the fuel filter is also located in the engine compartment. However, it is not fixed rigidly on the bracket. The consumable is simply embedded in the fuel line and is held in place only by the pipes.

Filter on a carburetor VAZ 2107

Cars with an electric fuel pump also have a coarse filter. It is represented by a mesh. It is assembled with a fuel cup placed in the gas tank.

Electric fuel pump and grid

Replacing the fuel filter on an injection VAZ 2107

To replace the fuel filter on an injection VAZ 2107, you must follow the step-by-step instructions given below.

• First of all, you should relieve the pressure in the fuel line. To do this, you need to remove the fuel pump fuse and start the car. After the engine stalls, you need to turn the crankshaft for a few seconds using the starter.

De-energizing the fuel pump

• Disconnect the tubes that are attached to the filter pipes.
• Loosen the clamp bolt.

Loosening the clamp

• To prevent future fuel leaks, it is imperative to replace the O-rings.

Sealing ring

• Reinstall the filter.
• Start the power unit and check for gasoline leaks.

Checking fuel leakage

Sequence of work when replacing a filter on a VAZ 2107

First, before work, you need to relieve the pressure from the fuel line. To do this, turn off the fuse in the fuse box that controls the operation of the fuel pump and start the engine. Let the engine run at low speeds until it stalls, which will indicate a release of pressure in the system.

All subsequent work will take place in the engine compartment, specifically in the engine department.

For non-hazardous work, the vehicle must be de-energized. To do this, it will be enough to remove the negative terminal from the car battery.

Next, you should unscrew the fuel hose fitting from the filter, after placing an old rag under it.

After unscrewing the fitting, we disconnect the tubes going to the filter, as a result of which a little gasoline may leak out.

The fuel filter is attached to the car body through a clamp with a coupling bolt. We unscrew it with a 10mm wrench, and then remove the old filter from the clamp.

Next, install a new filter. At this stage, it is necessary to consider the position of the arrow on the filter housing; it should point towards the fuel rail.

Also, when installing a new filter, it is necessary to replace the O-rings in the fuel pipe fittings.

Now it remains to reassemble in the reverse order, after which the replacement of the VAZ 2107 injector fuel filter is considered complete. After this, we turn on the ignition several times to pump fuel into the system, and start the engine. With the engine running, it is necessary to inspect the threaded connections for fuel leaks.

Other articles have already described how to replace the fine filter on Lada Kalina cars. Today this procedure will be discussed on the VAZ 2107.

The photo shows that in the above case the fuel filter was completely clogged.

Replacing a filter on a carburetor car

Instructions for replacing the fuel filter on a VAZ 2107 with a carburetor are presented below.

• There is no high pressure in the fuel line of the carburetor VAZ 2107. Therefore, resetting it is not required. Still, if desired, you can produce fuel.
• Unscrew the clamps that secure the fuel lines to the filter.

Unscrewing the clamp

• Pull the tubes off the filter pipes and remove it from the engine compartment.
• Install a new filter. It is important to consider the direction of gasoline flow.

New filter

• Tighten the clamps and check for fuel leakage.