Hello fellow intellectuals! ))) There is a VAZ 21074i car. It’s a good car, there are no words, but this thing, called a generator, craps everything. The actual question is: what imported generator can you use? I gave up domestic spare parts a long time ago, and have never regretted it. )))
Many people are interested in which generator is better to install on the VAZ 2106 and 2107. After all, the standard device has some disadvantages that negatively affect the performance. Standard generators were developed quite a long time ago, and they were not designed for a large number of energy consumers. At that time, a couple of light bulbs and a starter were used. It is not surprising that with a large number of devices, the generator cannot cope with its responsibilities.
We have to look for a suitable replacement for him. To do this, it is important to take into account all the features of the electrical circuits of the machine. The new device must fit them completely.
Standard option
Which generator is better to install on VAZ 2106 and 2107? The question is quite complicated. It needs to be considered starting with the most common option. After all, any manufacturer will say that it is the standard version that should be installed on the car. Let's look at the features of the standard version G221.
In this type of relay generator, the regulator is installed separately from the brush assembly. This makes it easier to troubleshoot some problems to some extent. The advantage is the ease of installation, there is no need to adjust the wiring for connection, everything is done according to the standard scheme. But such a generator is low-power; it produces a charge of a maximum of 42 A, which is not enough for most modern batteries.
From all this, we can conclude that a standard generator is certainly good. But, if you have additional devices, it is not very profitable to use it. It is best to choose a more powerful option.
This generator is intended for use on Niva cars. It is capable of delivering 50 A of current, which is quite enough for full-fledged electrical work. It differs from a standard “six” generator in the presence of a built-in regulator relay. Here it is assembled into one unit with brushes. Therefore, to install it on a VAZ 2106, you just need to make some minor modifications. This electric machine is installed on 2107 without any special interference or modifications.
There are several ways to refine such a generator. The easiest way would be to install brushes from the G221 generator. They fit perfectly in place of the relay assembled with the brush assembly. No modifications are required, this allows you to install such a generator, even for people without special skills. It is possible to install the G222 with a standard regulator, but to do this, you will have to redo the generator connection diagram. Otherwise, nothing will work out.
Generating Device Replacement Procedure
Before starting work, check the serviceability of the regulator relay. It is advisable to choose a model with the highest possible temperature compensation. This characteristic allows models 2106-2107 to operate at high speeds without failure. This indicator should be studied especially carefully if the VAZ 2106 or later modifications are used in areas with a hot climate.
Removing a broken device and installing a new one does not cause problems, thanks to the clear mounting method.
Difficulties arise at the stage when you need to connect a new VAZ generator. To begin with, the wires coming from the relay regulator are disconnected and subsequently insulated. Further connection of the VAZ 2108 generator is carried out as follows.
The wires, formed in the form of a ring terminal, are connected to the old place in the VAZ 2108. It is imperative to insulate the gray wire, which is not connected anywhere. Completes the installation procedure by connecting the yellow wire to the terminal. If the car owner was unable to find a device with the required power, then a model from a VAZ 2108 to a VAZ 2106 can be installed, provided that the total power of consumers is taken into account.
Careful attitude and regular preventive inspections will ensure long-term reliable operation of the machine. Even with a slight drop in speed or problems when starting the engine, there is a reason to look under the hood. The faster this is done, the less likely it is that the problem will spread further.
Generator 2108
This device is often installed on both 2106 and 2107. This is due to its greater efficiency; it produces a charging current of 55 A, which is quite enough for most motorists. But, if your car has significantly more equipment, then it is better to choose something more powerful.
These generators are identical in terms of mounting, so there will be no problems with the installation itself. Of course, if you remember to remove the terminal from the battery. The fun starts when you connect. The whole point is that 4 wires are attached to the original device. There are only 3 for the “eight” one. This is due to the built-in voltage relay. To obtain a normal result, you need to insulate the black wire, and connect the rest as usual. When the generator is running, the light indicating the discharge will be on. This is a normal phenomenon with such a connection. Accordingly, it should go out when there is no charging.
Generator 2107-3701010
For lovers of various additional equipment, an even stronger “gene” is required. They can recommend installing a device from a VAZ 2107i. This unit produces 80 amps, which is sufficient to operate any electrical systems added by the owner. When purchasing such a generator, keep in mind that there are several varieties. For installation on a VAZ 2106, only model 2107-3701010 is suitable; any generators of this series can be installed on carburetor “sevens”.
It is advisable to modify the device for installation on the “six”. To do this, the relay regulator is replaced with a similar one from G222. The connection is completely similar to working with a figure-of-eight generator.
Conclusion
. Initially, rather weak generators were installed on the “sixes” and “sevens”. But, in the process of technology development, their power was no longer enough to provide adequate power to the car. So the question arose, which generator is better to install on the VAZ 2106 and 2107. Fortunately, there is plenty to choose from. The next generations of devices are perfect for old Zhiguli cars after a little modification.
VAZ 2107 is one of the legends of the domestic automobile industry. The car was created as a luxury version of the VAZ 2105 model. At the same time, the differences affected not only the interior, but also other key components. In total, there are about 15 modifications that differ from the basic version. Unfortunately, the company's management decided to close production in 2012.
Over the course of 30 years, a huge number of cars of the described model were created. One of the most popular is the VAZ 21074, which received an engine from the VAZ 2106 model.
During their service, many cars have undergone repairs of varying complexity more than once. Let's look at the generator and its associated faults.
The best generators for VAZ
If the generator is seriously damaged, it does not have to be repaired, but completely replaced. Parts necessary for repair may be missing, or the breakdown may not be repairable at all. Meanwhile, the on-board voltage and the quality of battery charging depend on the good operation of the power unit. It's a shame when, despite a good motor, electrical equipment does not work properly.
And if we are talking about VAZ cars, then sometimes a replacement is in demand due to the lack of power of standard devices. Modern automakers offer many additional devices that increase the level of comfort when traveling, but they also consume a large amount of electricity, and old devices cannot cope, so they have to be replaced with more powerful ones.
Many people are interested: which generator to buy if they have a VAZ? Here you need to consider them separately by model, so before you go shopping, read the recommendations of specialists and compare them with your wishes and capabilities.
Difference between carburetor and injection systems
Many car owners independently replaced the carburetor with an injector, and some bought a car with an already updated system. One thing is certain – this is a step forward. But this means changing the operation of many nodes. How are things going with the generator, its operation and repairs?
There are differences, albeit minor ones. The injector assumes the presence of an ECU on board the VAZ 21074. And this is another consumer of electricity. Additional wiring is connected to the generator to provide power to the elements of the electronic control system. There are no more changes.
Note
You cannot check the functionality of the generator by disconnecting the terminals from the battery while the engine is running. This will damage the ECU.
Types of breakdowns
Generator VAZ 2107
What problems occur if the generator is not working properly?
- Extraneous noise appears.
- Complete lack of battery charging while the engine is running.
- Overheating and failure of the same battery.
- Damage to any or all energy consumers, including the injector.
- Increased or decreased voltage in the electrical system. The standard voltage is 13.6-14.5 V.
- Mechanical or electrical damage to the elements of the generator itself.
Obviously, this node requires special attention.
Advantages of installing a three-level regulator
Electrical diagram of a VAZ 21074 car
The three-level voltage regulator on the VAZ 2107 is capable of maintaining a constant voltage supplied by the generator to the vehicle network. With this product it is possible to save and increase the battery life. In addition to regulating voltage, three-position regulators are capable of maintaining current within a certain range.
Some of the main advantages of the device in question include:
- The main board of the device is located not in the generator itself, but away from it, which contributes to less heating of the product, as well as extending its service life.
- Possibility to regulate the voltage level manually thanks to a special switch. The device operates from a switch.
- The charge level is significantly higher, in contrast to standard products.
Problems with starting the engine, especially on frosty days when it is very difficult for the starter to start the engine, can be avoided by replacing the standard device with a three-position one. Large loads on the electrical circuit in a car, such as headlights, heater, heated glass, can contribute to battery discharge, even if the engine is running and the standard product is in good working order.
Types of regulator relays are simple, three-level and with temperature compensation. In the brush section of a standard seven generator, in most cases, a temperature-compensated option is installed. But, as practice shows, in terms of thermal regulation, these regulators are mostly ineffective. Recently, among drivers of the VAZ 2107 and other Lada models, the three-level type is gaining more and more popularity. Car owners who have installed such a regulator overwhelmingly recognize it as more effective than the standard one.
Characteristics of the Energomash device for VAZ 2107
The Energomash voltage regulator for the VAZ 2107 is equipped with three “25C” type diodes and a mode switch. With their help, a three-stage voltage change is carried out. A three-level balancer is also called a current injector, since the device is capable of maintaining it at a level of up to 6A. The main functionality of the three-level voltage regulator for the VAZ 2107 model "Energomash" is based on changing the current from the generator, thereby increasing the voltage of the on-board circuit to 13.6-14.7 V.
The first operating mode provides for maintaining the voltage at the generator output at 13.6 Volts. The switch should be installed in a position where the ambient temperature is +20 degrees and above. The switch in the neutral position should be set at temperature values from 0 to +20 degrees. And in the third position, the generator will produce a voltage of 14.7 V when the air temperature is from 0 to -20 degrees.
It is important to know! The Energomash model will cost about 350 rubles
Changing the brush assembly
Replacing a standard product with a VAZ-2107
Connecting a three-position regulator, or rather, changing a standard product, does not present any difficulties. After purchasing the product, you must complete the following steps:
- Initially, you need to remove the protective cover of the generator. Don't forget to disconnect the negative terminal from the battery.
- The standard part is removed by unscrewing two bolts using a screwdriver or a “6” key, which depends on which VAZ generator is installed on the car. It is also necessary to remove the terminal.
- After this, we compare the standard device with the three-level one. The brushes and fasteners must be identical in design, otherwise the product will need to be replaced.
- A new product is installed in place of the standard “tablet”, after which it is fixed with fasteners (bolts).
- The body of the product should be secured to the ground of the car in any convenient place (pictured below). This is not difficult to do, since the wire is long enough.
After installing such a product, the owner of a VAZ-2107 car will be able to forever forget about constant problems with a dead battery, since the new regulator will recharge it more stably under certain temperature conditions.
Main details
To understand where to look, you need to remember the main components that make up the generator. This:
- pulley;
- front bearing;
- rotor impeller;
- stator winding;
- magnetic circuit;
- rotor;
- rear bearing;
- “chocolate” (relay-regulator);
- diode bridge.
Most often, the brushes that are part of the relay-regulator unit wear out. Bearing wear is also common. You should also expect breakdowns of the diode bridge and the generator belt (which drives the pulley). Another part that requires periodic replacement is slip rings. They are located on the rotor and are in contact with the brushes.
To increase service life, you should regularly lubricate the mechanical components of the device (especially bearings), measure the voltage, the battery charge level and its condition, and tighten the fasteners. If you suspect any kind of breakdown, you must immediately begin repairs, otherwise there is a risk of failure of any connected device and component. If an injector and an ECU are installed on the car, then they do not joke with electricity. And the most ordinary care and prevention will reduce the likelihood of breakdown to almost nothing.
What should you pay attention to?
To carry out repairs, you need to have a general understanding of electricity and its properties. If with mechanical breakdowns everything is much simpler and often a visual inspection is enough to detect a part that needs replacement, then with electrical faults there is no such clear visualization. Moreover, the initial cause of generator breakdowns may be a malfunction of another component of the VAZ 21074, for example, the same battery. And vice versa. Very often a chain reaction is detected, with damage to several nodes.
In such cases, it is important to discover the cause before taking action. Otherwise, there is no guarantee that after replacing one or another element everything will not happen again.
As mentioned earlier, you cannot check the operation of the generator on the VAZ 21074 using the old method of tilting the terminals. Don't forget about the injector and ECU.
It is better not to buy a used generator, but to buy a new one. But even in this case, you need to check the voltmeter readings and battery charging more often than usual. Alas, even new factory products are sometimes defective. Therefore, it is better to play it safe, thereby protecting all electronics, injector, battery and other devices from overvoltage. This is really important.
If you don’t have confidence in your abilities, then it’s better to immediately contact a workshop. And one more important detail. If any element installed in the generator fails, service centers first of all offer its complete replacement rather than partial replacement. Of course, this approach has its advantages, but when the warranty period has expired, it is very expensive.
We increase the voltage - all options for solving the problem
Voltage in the on-board network after modification
So, many motorists may decide that the way out of this situation is to install a high-power generator, but at the same time they will have to replace the battery with a more capacitive one. This is done in order not to “kill” the battery that is installed on the car, since a voltage overload will lead to the destruction of the internal cells. This option is not suitable because it is too expensive.
The second option is to install an additional diode from another diode bridge or marked KD202V . This is much cheaper than changing the generator and battery, but you will have to tinker a little. To begin with, it is recommended to study automobile electrical circuits and the operation of the generator, as well as the charging circuit.
Installing the KD202V diode into the generator
When everything is ready, we proceed directly to installing the diode in the generator to increase the voltage in the on-board network. Let's consider the sequence of actions:
- Remove the back cover of the generator.
Remove the back cover from the generator
Wires and diode to increase voltage
Installing heat shrink for male and female wires
Installed heat shrink for the soldered part
We install a voltage regulator with a diode in the generator
Malfunctions and their elimination
Let's start with the simplest and most obvious. From the work of indicators. These are the difficulties that may arise.
Constantly lit indicator (even when the ignition is turned off)
To eliminate the problem, you will need to replace the diode bridge with a new one. The reason for this was a short circuit on it. You can try to repair it, but this requires knowledge. Replacement cost is low.
Devices and sensors do not work
To do this, you will need to check all wiring and contacts. Often the cause of such an incident is the fuse box. It is necessary to check the voltage in all areas to determine the location of the fault. If the cause is the generator, then you need to check the belt tension and the stability of the pulley. Next, the “chocolate”, brushes, and diode bridge must be checked.
The battery indicator is always on when the ignition is on
You need to start by checking the battery. In this case, the inspection is carried out both on a cooled down car and on a warm one. If overheating and boiling occurs, then you need to check the voltage regulator unit on the generator and check the wear of the brushes. We must not forget about the belt, pulley and bearings. To avoid unnecessary work, you need to measure the voltage between the generator and the battery. Most often this is a signal that the battery is not charging.
The indicator flashes
If in the previous case there is often not enough charging, here, on the contrary, there is a recharge. The regulator and brush assembly need to be replaced.
The noise may be caused by worn bearings, excessive tension or loosening of the belt. You need to make sure that all fasteners are secure and the gaskets are intact. Less commonly, the cause of this is a malfunction of the rotor or stator. And, again, the same generator brushes can make the most unpleasant sounds. In this case, they are changed or wiped with gasoline.
Voltage drops
This is best seen at night. If the headlights burn unevenly and constantly change light intensity, then the voltage regulator needs to be replaced.
No charge or bad charge.
If the value is less than the minimum allowable, check the voltage without load.
It is also necessary to measure the voltage between terminal 30 of the generator and its housing. If, when checking the VAZ 2107 generator, the voltage value, when the high beam headlights are turned on, at the battery terminals is below 13.5.V, and when the lights are off, the voltage slowly increases to a value of 13 - 13.4V. The reason in this case must be sought in poor contact from terminal 30 of the generator to the battery, poor contact between the negative terminal and the engine housing. To check the reliability of the connection in terminal 30 of the generator, it is necessary to measure the voltage between the terminal and the generator housing. If the voltage is significantly higher than the value at the battery terminals, then you should unscrew the nut securing the wire and clean the connection points and stretch the nut of the terminal itself located between the wire and the generator. Poor contact in this place will also be accompanied by strong heating of the contact bolt. If the voltage at the output is more than 13.5.V, then take a measurement between the positive terminal of the generator and the generator housing. If the value is equal to the voltage between terminal 30 of the generator and its housing, eliminate the contact between the negative terminal of the generator and the engine housing. If the value is less, then check the voltage value in the contact connections of the circuit from the generator to the battery. If the voltage value at the battery terminals and terminal 30 of the generator are the same, then the generator itself is faulty. The most common malfunction in this case is a breakdown of one diode of the rectifier bridge.
Voltage regulator malfunction.
If, when checking the VAZ 2107 generator, the voltage at the battery terminals is the same with the high beams on and off. In this case, the voltage value between the terminal
30 and the generator housing does not differ from the voltage value at the battery terminals. This is possible if the generator voltage regulator is faulty or there is no voltage for the initial excitation, or the generator itself is faulty.
First you need to check the presence of voltage to excite the generator. It is better to do this using a test lamp, connecting one end to the housing, and the other to a wire suitable for the generator brushes or terminal 61 of the generator, if the generator has a built-in voltage regulator. If there is no power on the wire, then it is necessary to check the integrity of the wires, the fuse and the serviceability of the voltage regulator on cars with a remote regulator.
Built-in voltage regulators must be checked when there is power, on the wire connected to them or terminal 61 of the generator. How to do this is described in the article “Checking the voltage regulator” and there is no point in dwelling on this issue here. If the excitation power is suitable and the regulator and brush assembly are in good working order, then the fault must be looked for in the generator.
Drive belt slipping.
Let's consider another version of the events identified when checking the VAZ 2107 generator. After starting the engine, without turning on the load, the voltage value is less than normal, but after some time it returns to normal. When the load is turned on, it drops sharply. The drop may also be the result of a sharp increase in engine speed, followed by normalization when operating at constant speed. This indicates slippage of the generator drive belt, which can be caused by weakening or wear of both the belt itself and the pulleys. Wear in this case can be easily determined by the presence of shine on the bottom of the pulley. In this case, the belt must be replaced; tightening it is useless in this case. Moreover, an over-tensioned belt can cause destruction of the generator bearings.
When installing a new belt, you need to pay attention to the amount of its immersion in the pulley groove. If the belt has failed completely, the pulley must also be replaced.
Well, finally, and lastly, when the voltage at the battery terminals when checking the VAZ 2107 generator is higher than 14.5V. this indicates a malfunction of the voltage regulator or poor contact at its negative terminal with the generator housing if the regulator is installed in a built-in position or with the car body if it is installed remotely.
admin 10/09/2014
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Completion
The most typical and common breakdowns were presented. For correct diagnosis in serious cases, special stands are needed, which are present in many workshops. It should be noted that sometimes the cost of such repairs can be equal to or even exceed the price of a new generator. Therefore, repair is not always the answer.
From the text it becomes clear that there are no significant differences between the injection VAZ 2107 and the earlier carburetor version. The same applies to the modification of the VAZ 21074 and all others.
Generator manufacturers claim that the generator is designed for 200-250 thousand kilometers. After passing the barrier of 100-150 thousand, it is necessary to conduct a thorough inspection and lubricate all mechanical connections.
