The VAZ 2107 car was created on the basis of the 2105 model. New sedan designed for 5 seats, was equipped with a 5-speed manual transmission. The car was put into production in 1982.
Initially, a carburetor engine from a VAZ 2103 was used as a power unit. Subsequent models and modifications were also equipped with carburetor internal combustion engines. For export models 21073, a new injection unit was developed. It had sufficient power and was also economical. The engine capacity was 1.7 liters. Then they began to install injectors on all “sevens”. It was a more modern engine (VAZ 2107 injector) with a volume of 1.6 liters. This allowed us to ensure compliance with existing environmental standards.
Let's figure out what an injector is, look at the principles of its operation and technical characteristics.
History and design of the injector
The debate about which system is better among specialists and car enthusiasts still does not subside. But let's leave this debate to the professionals. And novice car enthusiasts just need to know how this system works and how it works.
It is not at all necessary that car enthusiasts will need this knowledge to do-it-yourself repairs. However, knowledge is power. This knowledge is needed at least so that the novice car enthusiast is not deceived by cunning mechanics from the service station around the corner.
The history of this device begins in 1951. It was then that the well-known company Bosch installed such an injection system on a 2-stroke engine of one sports car. Then, in 1954, the famous and popular car manufacturer Mercedes also began to equip its engines with a new system.
Serial use of injectors began in the late 70s. Even then it was clear that this device worked better than conventional carburetor systems.
As a result, injectors completely replaced their “ancestors”. All modern cars equipped with such distributed as well as direct electronic injection systems.
The principle of operation of the injector in the power system
The injection system is designed for fuel supply using direct injection using an injector directly into the intake manifold of the cylinder. Therefore, cars with a distributed injection system are called injection cars.
The classification of the injection method depends on the principle on which the system operates, as well as where the injector is installed and how many there are in the car.
All modern cars perform fuel injection using a distributed system. That is, each cylinder has its own injector. The operating principles are based on signals from a microcontroller, which receives information from many sensors. Then, based on this information, the controller either opens or closes the injectors.
VAZ 2107 injector: device
VAZ 2107 cars have a distributed injection system. She works in tandem with electronic system engine control. It's called the ECU. Using numerous sensors, it controls the supply and quantity of air and fuel that enter the cylinders. Also, the ECU, if necessary, starts or turns off the fuel pump, controls the formation of a spark on the spark plugs, and also adjusts the ignition angles. In addition to all this, the ECU regulates the frequency at which the crankshaft rotates Idling, and also, if necessary, starts the cooling fan and controls the cooling system.
Scheme of operation of the injection power circuit on the VAZ 2107
There is nothing complicated here. This scheme should not cause any difficulties even for beginners.
Firstly, the power system starts with a tank in which the fuel is stored, and fuel filter. Then, using the fuel pump, the mixture passes through the filter to the fuel rail. A special pressure regulator is mounted on the ramp, which regulates the process of supplying fuel to the VAZ 2107 injector nozzles.
Using this regulator, a pressure of 300 mPa is created, and excess fuel is sent back to the tank. The injectors open and close using electrical impulses that come from the electronic control unit. They are designed to ensure simultaneous supply fuel mixture into the intake manifold of each cylinder at each crankshaft revolution.
How much of the combustible mixture enters the cylinders depends on the time at which the injectors are open. This time is adjusted by the controller based on information received from the sensors.
Sensors (VAZ 2107 injector) installed on the engine provide all the information necessary for this. For example, the crankshaft sensor provides information from which the controller calculates the time between pulses for the injectors. If the operating mode of the power unit is increased, the system increases the opening time of the injectors. The controller calculates the time based on information from throttle valve, as well as a mass air flow sensor.
The ECU constantly monitors the voltage in the car's electrical network, so if the voltage drops, the opening time of the injectors increases. All operating modes of the motor and injector are controlled by the controller. This ensures adjustment of the composition of the fuel mixture and operation of the injectors on the VAZ 2107 “injector” car.
Ignition system
Traditional devices are not used here. As systems providing ignition, the VAZ 2107 (injector) is equipped with one module, which consists of two coils, as well as electronics. The system does not use a single moving part.
How does the injection system work on the "seven"?
How much fuel is supplied through the injectors to the cylinders is controlled using an electrical impulse from the ECU. The block calculates the amount of fuel the engine needs and also determines how long the pulse will be.
When the crankshaft begins to rotate, the very first impulse from the idle speed sensor causes the ECU to turn on all the injectors. The very first injection takes place every time you start. How long the pulse lasts depends on the temperature.
When the driver turns on the ignition, the fuel pump relay is activated and creates pressure in the fuel line. Next, the computer checks the temperature and calculates how much air and fuel is needed to create the mixture, and then delivers it to the engine. The VAZ 2107 injector, by the way, is more economical than its carburetor counterparts. This is achieved through more accurate dosage of fuel.
Generator
The VAZ 2107 injector, in addition to all these devices and sensors for the correct operation of the injection system, is also equipped with a generator. It is necessary to charge batteries and power all electrical consumers and the injection system as well.
How does the VAZ 2107 model generator work? The injector doses fuel into the cylinder, after which the car is set in motion. At this moment, the generator generates the necessary voltage to charge the battery and power electrical equipment.
VAZ 2107: reviews
As for the reviews of the direct owners, they are, as always, very controversial. Many of the drivers and owners of this car complain about high fuel consumption and the low dynamics of the VAZ 2107 model. They don't criticize the injector. Also, many drivers say that they are satisfied with everything in the design of the car and in the design and operation of the power system. Some people don't like the product at all. Russian automobile industry, that’s why they criticize domestic cars in every possible way.
Today, if not all, then most drivers appreciate injection system injection is worth it. And many began to install injectors on conventional carburetor cars. Today you can purchase a new or used kit, which includes everything necessary for the system to operate.
How much does it cost to install an injector on a VAZ 2107? The price of this upgrade is about 20,000 rubles. But such a replacement will definitely pay for itself in the future.
So, we found out how the engine and generator work on the “seven”. The VAZ 2107 injector is much better than its carburetor counterpart.
The engine of the VAZ 2107 is a four-stroke, gasoline, four-cylinder, in-line, overhead-mounted camshaft. Depending on the date of release from the assembly line, it may be installed injection engine.
Compared to a carburetor engine, an injection engine has a number of technical features, such as electronic fuel injection and control of additional characteristics using additional sensors. Design features engines from the “classic” series are not fundamentally different. The only difference in the diameter of the pistons and cylinders, which allows them to develop different power, which ranges from 56-82 hp.
Detailed step by step repair individual elements engine and its systems are discussed in the entries below:
To check the engine oil level, the car is designed with special probe, located on the left side of the engine, which is inserted into the guide tube. To check the oil level you need to: Remove the dipstick from the guide tube and wipe it with a clean rag to remove the oil. There will be two marks on the dipstick that correspond to the maximum and minimum oil levels in the oil pan […]
We replace the cylinder head cover gasket of a VAZ 2107 in cases where oil from the cylinder head begins to leak through the cover, which in turn can be caused by sufficient wear or manufacturing defects. When replacing a gasket on a carburetor engine, you must: Remove the housing air filter. Disconnect the throttle control lever from the cover, also remove [...]
We adjust the tension of the VAZ 2107 timing chain in cases where the chain, during operation, is stretched quite strongly and a metallic ringing appears in the front part of the engine at its end. We also adjust the tension after all kinds of repair work, as a result of which the chain or other elements of the system were removed. The chain adjustment is also carried out before direct adjustment [...]
After the dismantling work has been carried out and the timing chain has been removed from the car, replaced or some other repair has been made, you can begin installing the VAZ 2107 timing chain. The installation sequence is as follows: Lubricate the new chain with engine oil and put it on it on the crankshaft sprocket, if the sprocket was removed, then we install […]
The VAZ 2107 timing chain is located in the front part of the engine under the cover. Regardless of whether you have an injection or carburetor engine, the work is performed identically. The camshaft drive chain is replaced if it is stretched too far and cannot be tensioned or if it breaks. Before you begin removing the chain, you must remove the decorative radiator grille, [...]
A VAZ 2107 timing chain tensioner is installed on the front right side of the car engine. The main purpose of such a mechanism is to tension the chain, which in turn is extended during operation. Replacement work is not difficult and is completed within a short period of time. To replace the tensioner you need to: Open the hood of the car and engine compartment, […]
The VAZ 2107 timing chain stabilizer is necessary to dampen vibrations of the chain when it rotates. As a rule, the appearance of a metallic knock in the area of the chain may indicate either weak chain tension or severe wear of the damper, in which case it will have to be changed. The damper is located in the front part of the engine and to replace it you need to: Remove the cylinder head cover. We fix […]
Dismantling work to remove the camshaft and valve levers on a VAZ 2107 is carried out when repairing the gas distribution mechanism, when the camshaft fails and for its subsequent replacement with a new one, as well as to replace valve levers and springs. The replacement work is identical on a carburetor and injection engine; we will consider the process using the example of a carburetor. To remove the camshaft [...]
If a chaotic clattering sound of a ringing metallic hue appears from under the cylinder head, it is necessary to adjust the valves of the VAZ 2107. Misadjustment of the valves occurs naturally during the operation of the car or during any repair that involves disassembling the valve mechanism, for example when replacing valve stem seals. We adjust the valves on a cold engine. You will need a special probe that […]
The first sign indicating a malfunction of the VAZ 2107 valve stem seals is the appearance of bluish-blue smoke when the car is moving under load or when the engine is braking. Faulty caps do not hold oil pressure well in the cylinder head and it begins to enter the combustion chamber and, when burned, produces a bluish exhaust. To carry out repair work, it is necessary to remove the camshaft housing […]
The VAZ 2107 oil pressure sensor is located in the lower left part of the car engine and is necessary to monitor the oil pressure in the system. Inside the sensor there is an active element that reacts to pressure changes, as a result of which the current value changes, which in turn is recorded by a measuring device in the car’s interior and signals the driver about the current state of the oil pressure […]
The VAZ 2107 crankcase pan is removed in cases where it needs to be replaced, it is necessary to remove the oil pump or carry out any work on the engine crankshaft, and we also remove the pan to replace the sealing gasket. Replacing the pan is also required if the engine overheats, which could cause warping of the surface of the pan and, as a result, the formation of oil smudges that do not […]
The drive shaft of the VAZ 2107 auxiliary devices is responsible for driving the ignition distributor, oil pump gears, and fuel pump. Located at the front of the engine, at the end under the camshaft drive chain cover. The roller is replaced if it fails, when it ceases to perform its intended functions. To remove the roller, the car must be driven into an inspection hole or [...]
During the operation of the car, the VAZ 2107 oil pump drive gear gradually wears out and if it is not replaced in time, the gear begins to slip, which entails poor operation of the oil pump and, as a result, a decrease in oil pressure in the system. The drive gear is located under the ignition distributor shaft for a carburetor engine or under the plug for an injection engine. To remove [...]
Have oil traces appeared in the front part of the engine, near the crankshaft pulley? The problem may be a worn out oil seal. You will have to carry out repairs to replace the front crankshaft oil seal of the VAZ 2107 and replace it with a new one. Repairs must be carried out in an inspection pit or overpass, since almost all work will be carried out in the lower part of the car. Having driven the car into the pit, we put it [...]
We install the gasket of the exhaust manifold and pipeline of a VAZ 2107 on a carburetor engine in case of its breakdown, which is usually accompanied by the appearance of a characteristic noise exhaust gases under the collector. For repairs you will need a standard set of tools. Before starting the disassembly process, it is worth carrying out a number of preparatory work, namely: we need to drain the cooling system and disconnect the battery. The procedure for removing [...]
The cylinder head gasket of a VAZ 2107 carburetor engine is replaced in the event of its breakdown when coolant enters the combustion chamber of the cylinders. To replace the gasket, it is necessary to remove the cylinder head; it can be removed without dismantling intake manifold and carburetor. The procedure for replacing the cylinder head gasket is as follows: First of all, it is necessary to drain the fluid from the system […]
Replacing the cylinder head gasket of a VAZ 2107 on an injection engine is carried out in the event of its breakdown when coolant begins to flow into the cylinders. To carry out repairs, it is necessary to drain the coolant from the unit by unscrewing the drain plug in its lower part. The procedure for performing dismantling work is as follows: After draining the coolant, remove the battery from the car. Disconnect from [...]
The VAZ 2107 receiver is removed either to replace it, replace the sealing gasket, or to perform other repairs in which its presence will interfere with operation, for example, when removing the fuel rail, removing the intake manifold. First of all, it is necessary to remove all attachments from the receiver, namely: Remove the throttle control housing from the receiver. Next, loosen the fastening clamp [...]
The intake manifold gasket of a VAZ 2107 on a fuel injection engine is replaced if it breaks down. To replace, you will need a standard set of tools, and for the convenience of the work, you need to drain the coolant from the cooling system and remove the battery so that it does not interfere. Drive the car into the inspection hole. The repair procedure is as follows: In the engine compartment of the car, remove [...]
The VAZ 2107 oil pump is replaced when it ceases to perform its intended functions. As a rule, a pump malfunction is accompanied by either an increase in oil pressure or, conversely, a decrease below the permissible level. idle speed. The pump is located in the engine oil sump, so to remove it it is necessary to drain engine oil into a clean container, then remove the tray by unscrewing [...]
The oil separator for the crankcase ventilation system of the VAZ 2107 engine is located in the engine compartment on the left side of the engine. To remove the oil separator you must: Remove the dipstick for measuring the oil level in the engine crankcase from the guide. Next, you need to disconnect the crankcase gas exhaust hoses and the breather pipe from the oil separator cover; to do this, loosen the clamps securing them and pull them off the pipes. Remove the breather cap, [...]
The engine is mounted on the car using support pads. The front pair of supports are located on the left and right sides and are attached to the beam. The rear support directly supports the gearbox. VAZ 2107 engine mounts are replaced if they fail. Repairs must be carried out on an inspection pit or overpass, and you will also need a stand […]
The process of removing a VAZ 2107 injection engine is in principle identical to the process of removing a carburetor engine, with some amendments related to technical features injection engine design. You will also need a winch with a cable or rope with a lifting capacity of at least 300 kg. Repair work are performed on an inspection pit or overpass. Remove the hood. The procedure for removing an injection engine is as follows: In the engine compartment of the car […]
The VAZ 2107 carburetor engine is removed to repair the cylinder block or replace it with a new one. The engine can also be removed to perform various body repair. It is best to carry out dismantling work in a pit so that it is convenient to disconnect the transmission elements. You will also need a winch or overhead crane with a cable or rope that can withstand maximum load over […]
In most cases, the engine of a VAZ 2107 car is removed either to replace the cylinder block or to perform body repairs to the front part of the body. The engine can be removed from the car in two ways: Complete disassembly and removal of all attachments to make the cylinder block as light as possible. This type of work will require quite a lot of time, but at the same time it will allow [...]
The VAZ 2107 flywheel is removed in cases where: It is necessary to replace the crankshaft rear oil seal; the flywheel will interfere, covering the oil seal holder. If the ring splines are damaged, this usually happens when the starter is faulty, that is, only the ring needs to be replaced, without completely replacing the flywheel. The flywheel can also be removed to replace it with a new one if it becomes unbalanced, [...]
To carry out repair work on removing and subsequently replacing the rear crankshaft oil seal of the VAZ 2107, the car must be driven into an inspection pit or overpass. Also, for repairs you will need a standard set of tools. The crankshaft oil seal is replaced if it fails and oil begins to leak through it while the engine is running. The repair procedure is as follows: [...]
Before you begin installing the VAZ 2107 crankshaft on a car, you must thoroughly rinse it with clean kerosene, and then be sure to wait for it to dry completely or blow it with compressed air so that the kerosene evaporates faster. To complete the work, you will need the same tools that were required to remove the crankshaft. The procedure for performing repair work is as follows: In [...]
Crankshaft The VAZ 2107 must be removed to replace it in case of failure; it is also removed to replace liners or when performing a major overhaul of an engine with a piston group boring. To carry out repairs, the car must be driven into a pit. Drain the engine oil into a clean container by unscrewing the plug on the bottom of the engine oil pan. The repair procedure […]
Replacement piston rings and VAZ 2107 pistons is produced in cases where the gap between the surface of the ring, piston and work surface cylinder, which in turn is accompanied by an increase in oil consumption, a decrease in engine power, and also an increase in fuel consumption. As a rule, wear of the pistons is accompanied by wear compression rings, and it may also require boring [...]
The VAZ 2107 fuel filter is necessary to clean the fuel flowing along the fuel line from the fuel tank. The fine filter is located in the engine compartment of the car. To replace it, you will need a new filter and a Phillips or flat-head screwdriver to loosen the fuel hose clamps. If the design of the car does not provide for such a filter, then it is recommended to install it, thereby protecting […]
Periodically during the operation of the car, it is necessary to replace the air filter filter element, since the dust contained in it gradually enters the carburetor and clogs it. The filter element can be blown out with compressed air, or it is best to replace it with a new one. Removing the VAZ 2107 air filter housing is carried out to perform various repair work related to disassembling and removing the carburetor. […]
The VAZ 2107 fuel pump is removed to replace it with a new one or to perform partial repair such as cleaning the fuel filter or replacing the diaphragm. To perform the work you will need a standard set of tools. Before removing the fuel pump, clean the dirt from its surface with a clean rag soaked in gasoline, then disconnect the incoming and outgoing fuel supply hoses from it, […]
In most cases, the main reason for repairing the VAZ 2107 fuel pump is damage to the diaphragm, as a result of which the pump stops responding to manual pumping of fuel into the fuel line; repair is also necessary when a leak forms from under the fuel pump cover, that is, the sealing gasket needs to be replaced. The procedure for disassembling the pump is as follows: Wipe the fuel pump with a clean rag to remove dirt. Disconnect […]
Periodically during vehicle operation it is necessary to clean or complete replacement fuel filter for the VAZ 2107 carburetor. The filter element is located immediately after the mounting flange of the fuel supply hose in the lower part and is a regular bolt-plug that is screwed into the filter housing. The procedure for removing and cleaning the filter element is as follows: Clean with a clean rag soaked in gasoline […]
The VAZ 2107 carburetor drive is adjusted when the car begins to respond poorly to the gas pedal, that is, the throttle valve of the primary carburetor chamber does not open well. Adjustment work must be done with an assistant. The damper opening is adjusted by changing the length of its drive rods. For repairs, it is necessary to remove the air filter housing. The procedure is as follows: [...]
Adjusting the VAZ 2107 carburetor float is carried out when the fuel level in the carburetor float chamber becomes higher, which leads to spark plugs being thrown, or vice versa when the level is insufficient, when there is simply not enough fuel. Required fuel supply float chamber provided correct installation and adjusting the needle valve and float, which, depending on the fuel level, either opens […]
The idle speed adjustment of the VAZ 2107 engine is carried out after various repairs to the carburetor, as a result of which the optimal settings for the quality and quantity of the mixture were violated. The optimal speed should be 800-950 rpm, and adjustment should be made only on a warm engine. The adjustment is made by two screws located on the carburetor body - the fuel mixture quantity screw and [...]
The starting device for the VAZ 2107 carburetor is necessary for preparing a combustible mixture to start the engine. The starting device must prepare a sufficiently rich mixture, which will be sufficient to start a cold engine. When the engine begins to start poorly, it is necessary to check the functionality of the starting device, since the problem is most likely in it, provided that all other elements of the system responsible […]
The VAZ 2107 carburetor is removed to disassemble it or replace it with a new one if it cannot be repaired. Removal requires a standard set of tools. The procedure for removing the carburetor is as follows: First of all, it is necessary to remove all attachments and damper drive cables. Remove the air filter housing by unscrewing the four nuts securing it to the carburetor studs. […]
The replacement of the carburetor float and its needle valve on a VAZ 2107 car is carried out when the seal of the float is broken, as a result of which the float simply does not shut off the fuel supply to the carburetor chamber. The needle valve is also changed if it starts to jam, which also leads to a disruption in the fuel supply to the chamber. Repair […]
The VAZ 2107 carburetor cover is removed to adjust or replace the float, needle valve, or to purge the fuel jets in the carburetor body. To remove the cover, there is no need to remove the entire carburetor from the car; you just need to remove the air filter housing. Before starting work, prepare carburetor cleaner in an aerosol can; you will also need a standard set of tools. […]
The carburetor on a VAZ 2107 is disassembled to clean it or replace failed individual elements. The carburetor has a fairly large number of different small parts, such as jets, o-rings, so disassembly and subsequent cleaning is best done on previously prepared clean material in such a way that all the parts, arranged in order, fit on its surface, [...]
Removing the pneumatic drive of the VAZ 2107 carburetor throttle valve is carried out to repair the carburetor itself, when its complete or partial disassembly is required. Repair work to remove the pneumatic drive can be carried out without dismantling the carburetor; you just need to remove all the attached elements that will interfere with the progress of the work, primarily the air filter housing. The pneumatic drive is also removed […]
In most cases, unstable engine idling is associated with complete or partial failure of the VAZ 2107 economizer. Failure is caused primarily by damage to its diaphragm, as a result of which the valve partially or completely shuts off the fuel supply. Before you begin work on removing and replacing the economizer, it must be checked for functionality, […]
To check the microswitch of the VAZ 2107 EPHH unit, you will need a multimeter with a mode for checking the resistance in the circuit, as well as a standard set of tools. The procedure for performing the check is as follows: Open the hood and clean the microswitch from dirt. We disconnect the power wires from it and wipe it with white spirit. Connect the ohmmeter terminals to the switch terminals and measure the resistance. […]
The electro-pneumatic valve of the VAZ 2107, also called the idle air valve, is necessary to maintain stable engine speeds at idle, that is, when low revs. The air supply bypasses the throttle valve. The operation of the pneumatic valve is controlled by its control unit, which, depending on the engine speed, opens or closes the valve by decreasing or increasing the voltage. Before implementing [...]
The VAZ 2107 electric pneumatic valve control unit is a regular relay located in the engine compartment of the car on the right mudguard of the body. If any irregularities are detected in the operation of the pneumatic valve, the first thing to do is check the operation of its control unit, and then proceed to check the valve itself. To check, you will need a multimeter and a standard set of tools. The procedure for performing repairs [...]
The VAZ 2107 fuel filter is replaced according to the technical inspection card, which indicates the need to perform this action every 30,000 km of the vehicle's mileage or in the event of an unexpected need arising due to deterioration of the fuel system. To perform the repair, you will accordingly need a standard set of tools and a new fuel filter. If you have everything you need, you can begin work, for this: [...]
Relieving and checking the pressure in fuel system VAZ 2107 is produced if there is a need for depressurization of the system caused by various repair work associated with the removal of individual elements. A pressure check is carried out to identify a malfunction in the operation of the electric fuel pump or pressure regulator in the fuel system. It is worth remembering that quite high pressure is created in the fuel system, so any depressurization work [...]
The VAZ 2107 fuel pressure regulator is a bypass valve, which is necessary to maintain the same pressure in the fuel rail. The regulator is connected to the fuel line after the fuel filter and attached to the ramp. Removal is carried out in case of failure for subsequent replacement. To remove the regulator, you will need a standard set of tools, as well as a special hexagon for [...]
The VAZ 2107 electric fuel pump and fuel level sensor are installed in fuel tank car. The main purpose of an electric fuel pump is to supply fuel through the vehicle’s fuel system to the injectors. In addition, it creates the necessary pressure in the system before starting the engine, since the injectors operate only at a certain pressure. A fuel sensor is necessary to monitor the fuel level in the gas tank. Major breakdowns, [...]
Replacement of injectors on a VAZ 2107 car is carried out in the event of their failure, which in turn is checked by measuring their winding resistance. The injectors installed on the car are electromagnetic valves that dose the supply of fuel into the combustion chamber of the cylinders depending on the data received from the injection system sensors. The nozzles are controlled using electronic unit management - [...]
In most cases, the VAZ 2107 fuel rail is removed to replace it, if any mechanical damage is detected, as well as to replace and repair the injectors of the vehicle’s injection system. Before you begin any repairs, you must disconnect the negative cable. battery, also relieve pressure in the fuel system. The procedure for replacing the fuel rail is […]
The VAZ 2107 idle speed control is removed to replace it with a new one if the old one fails as a result of any mechanical damage. Before removing the regulator, it is recommended to test it with a performance tester; the test comes down to simply measuring the voltage at the terminals of the block, and after removing it, measuring the resistance at the same terminals. To check you will need a multimeter [...]
Repair work to replace the throttle body of a VAZ 2107 on a fuel injection engine must be carried out on a cold engine, since the throttle body gets quite hot and is inconvenient to remove. Typically, the housing is removed and replaced to replace the sealing gasket, replace the idle air control regulator, or to replace the housing itself in case of mechanical damage. Before as […]
During the operation of the vehicle, according to the map Maintenance, it is necessary to replace the filter element of the VAZ 2107 air filter. The filter element can be replaced without removing the filter housing. For repairs you will need a set of screwdrivers. The work order is as follows: Using a Phillips screwdriver, unscrew the four screws securing the filter housing cover. Disconnect the connector with wires from the mass air flow sensor. […]
The VAZ 2107 air filter housing is removed to replace it in case of various mechanical damages, as a result of which the integrity of its housing has been compromised. To remove, you will need a standard set of tools, namely pliers and a set of screwdrivers. Once you have everything you need, you can begin work. To dismantle the filter housing, you need to do the following sequence of actions: First of all […]
The VAZ 2107 throttle valve drive cable is removed for replacement if it fails as a result of mechanical damage. To perform the repair, you will need a standard set of tools, a new cable and penetrating lubricant. Once you have everything you need, you can start replacing. To remove the throttle cable, you must: Inside the car, remove the end of the cable from the pedal pin […]
The coolant used in cars is distilled water, which contains various chemical additives that provide it with the necessary properties, such as resistance to low temperatures, anti-corrosion effect on the internal channels of the cooling system, resistance to scale formation. Coolant is poisonous, so be careful when working with it and if it gets on your skin, it should be […]
The VAZ 2107 radiator fan switch-on sensor is necessary for timely switching on of the fan motor when the coolant temperature reaches certain ranges. The sensors differ in response temperature and in most cases on VAZ “classic” cars are installed with an operating temperature of 92° switching on, that is, closing the contacts and 87° opening. Before changing the fan sensor, it must be checked [...]
Removal of the VAZ 2107 radiator electric fan is carried out either for its replacement or repair, as well as when removing the radiator itself from the car. The electric fan consists of a housing that is attached to the radiator and holds the engine itself. Electrical engine and impeller. To remove the electric fan you will need a standard set of driver's tools. If everything is there, then you can start. The process of removing the fan looks like [...]
The VAZ 2107 radiator is located in the front part of the car body and serves to cool the cooling system fluid by passing it through the radiator tubes, which are blown by a counter flow of air when driving, as well as by a forced system fan. The radiator is replaced if it fails, which manifests itself as normal corrosion of the tubes and, as a consequence, depressurization. ABOUT […]
The downpipe connects an exhaust manifold car engine with catalytic converter. Replacement of the VAZ 2107 exhaust pipe is carried out in case of mechanical damage or corrosion damage. Pipe replacement must be done in an inspection pit. To complete the work, you will need graphite lubricant and a standard set of tools. On a carburetor engine, disconnect the clamp securing the exhaust pipe and the additional muffler by unscrewing the nuts of the coupling bolts. […]
Removing the additional muffler for the VAZ 2107 is done to replace it when it is damaged and its seal is broken. In most cases, the main cause of damage is metal corrosion. The auxiliary muffler is located centrally between the catalytic converter and the main muffler. For repairs, the car must be driven into an inspection pit or overpass, and for repairs you will also need a standard set of tools […]
Replacing the VAZ 2107 catalytic converter is carried out in the same way as in the case of the main muffler, at the moment when various mechanical damage appears on its body as a result of which its sealing has been compromised or severe corrosion has occurred. To replace the catalyst, drive your car into a pit or overpass, also prepare a standard set of tools and […]
In most cases, the primary reason for replacing the main muffler on a VAZ 2107 is its failure due to metal corrosion, as a result of which the integrity of its body or the connecting welded pipe and body is compromised. To replace the main muffler, the car must be driven into a pit or overpass. The muffler is secured using rubber hangers, so vibration […]
A class B rear-wheel drive sedan, the VAZ 2107 is known all over the world. Thus, in the UK, the “seven” was known as the Lada Riva 1500 GLS, in Canada – as the Dennis Signet, in a number of European countries – as the Lada Nova or VAZ 2107.
Work on the VAZ 2107 began back in 1976, and the task was set to be truly complex: to reduce harmful emissions and fuel consumption, to increase safety and comfort. Moreover, the changes had to be carried out in accordance with the requirements of the global automotive industry. The result should have been - and it was - a luxury, fashion version. Moreover, it turned out to have such a stable image that even twenty years later, being an outdated model in almost all respects, it still did not drop in price, despite the absolute and obvious loss to its competitors.
Engine characteristics
During the industrial implementation of the VAZ 2107 model, cars bearing this name were equipped various engines– from one and a half liter, 8-valve carburetor, to rotary piston engine with a power of 140 horsepower. In total, more than ten modifications of the VAZ 2107 were produced.
Car transmission
With all the many changes that occurred with the VAZ 2107 model over almost 20 years of its assembly, one thing remained unchanged - the transmission. The gearbox in all versions and modifications was only mechanical. Of course, on the one hand, such a transmission is more reliable, on the other hand, it is less convenient, especially for novice motorists.
Brake system and power steering
Tire size
Dimensions
Vehicle weight
Dynamics
Fuel consumption
Engine on VAZ-2107 can be supplied from both domestic and imported manufacturers.
This type of improvement of the base model is considered tuning, and if it is done with your own hands, then you can earn approval and hear words of admiration not only from drivers, but also from those who have never driven a car. Video confirms this:
Reviews are only positive:
- The boys turned out to be real masters.
- Excellent discs, I liked everything very much.?
- The engine is such that there are no words!
- Great job: the piston is exactly 100 in diameter.
- How cool they connected the box and rear axle. Virtuosos!
- The guys are simply handsome, they managed to do something with their own hands that you don’t mind praising.
- In addition to what has been said, take this advice: if you install the bumper stronger, then the tuning will be a 100% success.
For some future car owners, the question is more serious: which engine to choose? Let's listen to what experienced drivers have to say.
Mikhail, 40 years old, is the owner of a VAZ-2107 with a carburetor engine. He drives his second car with an injection unit. Ready to give comparative analysis two systems. His seven became the latest model of the classic version, designed for economical fuel consumption and slightly increased dynamics. What actually happened?
Carburetor engine: comparative characteristics
First, it’s worth touching on the dynamics of a Lada with an injector engine. What was said in the previous paragraph was not confirmed. Moreover, the problems have only gotten worse. The injection system did not reduce fuel consumption: this engine began to accelerate even more slowly than its carburetor counterpart. Many owners of such cars are guilty of new “brains”: the electronics are a little slow to understand, but if you install it, it should change for the better.
The manufacturer does not agree; he cannot handle a frisky foal. While carburetor the engine is running a few steps ahead. There is no need to talk about fuel consumption; even the injection engine 2107 is not at all happy with it. Even the same driving style over a distance of 100 km suggests that it consumes half a liter more than the second version of the car.
Injection engine: second part
There are also problems, both with one engine and with the other. The new injector is completely controlled by electronics, which means that replacing the ECU with a 2107 in the event of a breakdown is only possible if it significantly empties your wallet. If you completely change the entire injection system, then it is better not to do this, but to immediately buy a new car.
We can talk about the two air flow sensors separately: replacing them will cost 30,000 rubles. For the carburetor the situation is different: it can be completely replaced with a new one, discarding a third of the above amount. The carburetor also does not have ideal options. Its repair will cost 2-3 thousand rubles less. Is it worth it to get so worked up over this money?
Once the work under the hood is done, you can move on to the box. The Fiat has a larger one, so first you will have to change the mounting frame. The long 5th gear is to blame. No problem: collect cardan shaft of 2 parts, where imported elements will be in front, and native Zhiguli ones in the back.
Vibrations are also easy to tame: shorten the splines on the front part of the cardan by about 2 centimeters. You can leave the rear axle domestic, make a tunnel cut out in the cabin to move the handbrake, otherwise on a Fiat the rocker is located and the shift knobs are a little further away from the driver. After the alteration, they were just at hand.
Now that’s it, but if any of you are eager to accomplish feats, you can get a blessing in the church or from the leadership of this site.
VAZ-2107: it’s time to fill the engine with new oil
According to the standards provided for the maintenance of cars of the 2107 series, you need to flush the entire engine lubrication system after 30,000 km. Drain the old oil, but do not turn it all the way oil filter. Fill in the flushing agent up to the “MIN” mark of your dipstick, start the engine, let it idle for 7-10 minutes. Drain the residue, replace the oil filter. Add engine oil, keeping an eye on the level.
How to change the oil in the engine of a VAZ-2107 car? The process of labor does not represent. Check out the step-by-step instructions:
- Prepare a container of 5-6 liters.
- Warm up the engine.
- Place your car on a viewing hole or drive onto an overpass.
- Remove the oil filler cap.
- Remove the air filter housing.
- Using a 12mm hex wrench, open the crankcase drain pan plug.
- Drain the engine oil into a prepared container.
- Use a puller as an assistant to remove the oil filter.
- Using a rag, clean the plug threads from drain hole, wrap it up.
- Fill a completely new oil filter with only fresh oil and do not forget to lubricate the rubber gasket located right there with it.
- Screw the filter onto the fitting, after the gasket and the mating ring come into contact, turn the filter 3/4 turn to the right.
- Fill the engine with oil.
- Wait 3 minutes, check its level with a dipstick.
- Replace the cover.
- Start the engine for a couple of minutes, stop it, check the oil level, test for leaks from the gaskets.
Everything worked out? You are simply a professional! Don't want to meet? You can learn a lot of interesting things if you become a regular visitor to the tuning section. You may only be a student for now, but remember what children are like in first grade and how a small member of society grows up. This happens to those who service cars.
The car engine is a perfect mechanism, in which the lubrication and cooling systems and supply of the air-fuel mixture are well thought out.
Characteristics of the VAZ-2107 engine
One of the main characteristics is the engine power of the VAZ-2107, which can vary depending on the modification of the car. For example, since its appearance on the domestic market (1976), three models with carburetor engines have been produced:
- VAZ-2107 1.5: engine capacity 1451 cm 3, power 72 kilowatts;
- VAZ-21072 1.3: volume 1290 cm 3, power 64 kilowatts;
- VAZ-21074 1.6 l. s: engine capacity 1569 cm 3, power 74 kilowatts.
In addition, the manufacturer has released two modifications of the car with injection power unit– 2107i 1.6 (engine power 70 kilowatts) and 1.6MT (73 horsepower). It is impossible not to mention the 21073 1.7 model with central injection of the air-fuel mixture. This type of “seven” uses AI-95 gasoline as fuel (other models use AI-92), has an engine capacity of 1689 cm 3 and boasts highest power at 76 horsepower.