Recommendations from experts for replacing the generator on the Lada Grant

Every grant driver knows about the problems of the standard generator on the Lada Grant. However, they are in no hurry to eliminate the defect in mass production. Support (rolling) bearings often fail. While driving, extraneous noise appears, a metallic grinding sound.

To eliminate the defect, it is necessary to dismantle the generator, carry out an inspection, and replace worn elements. Most often, the causes of failure are associated with an electrical or mechanical component.

Replacing the generator on Lada Granta 16 valves

At the preparatory stage, we will need the same tools and materials as in the case of the 8-valve Granta.

The design of the 16-valve modification of the Lada Granta has an alternator belt tensioner installed. This must be taken into account during repairs.

Algorithm of actions:

1. The car is in the perimeter of the repair area, the battery terminal has been removed, the oil pan is protected.
2. By analogy, we disconnect the power terminals from the converter and the protective cap.
3. The key is set to “13”, release the upper lock of the generator, move it to the right until it stops.
4. Remove the belt from the pulley.
5. Unscrew the lower fastening and remove the bushing.
6. We remove the generator from its regular place.

Replacing the VAZ 2190 alternator belt

According to the maintenance regulations, the condition of the drive belt must be checked every 15 thousand km, and the part must be changed every 30 thousand km, even if it is visually in good condition. The 8-valve Granta power unit does not provide a device for tensioning the belt, therefore, it is considered a disposable consumable, i.e. its repeated installation is not allowed.

To independently check this rubber product, you need to perform a few simple manipulations. 5th gear is engaged first. Then you need to lean on the front bumper and try to roll the car away from you, while at the same time assessing the appearance of the belt. It should not have even small cracks, not to mention peeling and ruptures, which often appear during prolonged use.

Replacing the Lada Granta alternator belt begins with its purchase. Usually the original spare part is not very expensive. Characteristics of the Lada Granta belt:

• article in the catalog – 1118-1041020-07;
• length (size) – 823 mm;
• marking on the package – 6РК 823.

To work you will need a minimum set of tools:

• stationery knife;
• screwdriver or long mounting blade;
• key to "13".

Replacement is carried out as follows:

1. Remove the old belt. To do this, it is most convenient to cut it with a knife.
2. Unscrew the lower mounting bolt of the unit two or three turns using a “13” key.
3. Unscrew the nut and remove the mounting bolt from above.
4. Now, being careful, you need to try to rotate the generator so that the eye on top can go beyond the protrusion of the bracket. The generator should be pressed against it and secured with available materials. An ordinary wire will do, with which it is tied to the cylinder head cover nut.
5. Place the belt on the pulleys first.
6. Turn on the fifth speed, at the same time press the belt against the pulley (outside help is needed). The car should be pushed again so that the belt is in its place.
7. Remove the wire and, armed with a screwdriver, press the generator at the point of contact with the bracket, and then screw the bolt into the upper mount.

Next, all that remains is to tighten the nut and tighten the lower fastening. This concludes the procedure.

Replacing a generator on a Lada Granta with air conditioning

At the preparatory stage we will need the above tools and materials.

Sequencing:

1. After unscrewing the converter mounts, hang up the front of the car, unscrew the bolts, and remove the right wheel.
2. Through the opening in the wheel arch we unscrew the tension roller and the engine mount mount.
3. We lower the car with a jack until access to the generator opens.
4. The further dismantling algorithm is no different from that described above.

We carry out preventive maintenance, replace the unit with a new one, and assemble the structure in the reverse order.

Where is the generator located on the Lada Grant?

On cars of the Lada Granta family, the current converter is located in the engine compartment, on the left side.

Engine compartment When carrying out repairs, you may experience difficulties with access to the converter mounts. For convenience, remove the oil pan protection and hang the front of the car.

Rectifier module

The rectifier module is designed to convert alternating current into direct current. It is based on six silicon diodes (gates): three positive and three negative. They are located on two horseshoe-shaped plates. To smooth out voltage surges, the terminals of the positive and negative diodes are connected through a 2.2 μF capacitor.

How to check the generator on a VAZ-2110 for the functionality of the rectifier unit with your own hands? To do this, you will need a regular car tester or test lamp. The essence of the test is based on the ability of diodes to pass current in only one direction. A faulty valve either does not pass current at all, or passes in both directions.

So, first you need to remove the casing of the rectifier unit. Next, connect the first wire of the test lamp to the “B+” terminal of the generator, and the second to the ground of the device. If the unit is working properly, the lamp should not light up. If it lights up, there is a short circuit in the rectifier and it needs to be replaced.

Don't be lazy to check the capacitor as well. Turn the tester into ohmmeter mode (1-10 MOhm) and measure its resistance. For a working capacitor, it should first take a minimum value and then gradually increase. If this does not happen, replace the capacitor.

Signs of generator malfunction, ways to eliminate them

Principle of operation

In order for the generator to supply current to the load, the field winding must be energized. This, in fact, happens when we turn on the ignition. Next, the crankshaft of a running engine causes the armature to rotate. At this time, electricity begins to be generated in the stator winding, which is sent to the on-board network.

In VAZ-2110 cars, the generator produces alternating current, and all consumers are designed for direct current. To convert it, a rectifying diode unit is used.

But that's not all. The fact is that the voltage produced by the generator constantly changes depending on the number of crankshaft revolutions. To stabilize it, a voltage regulator relay is used.

As a result, at the terminals of the device we have a constant electric current of stable voltage.

Replacing the Lada Granta generator - KZATE with Bosch. Comparative characteristics and disadvantages

Due to its smaller height, Bosch 110A is 10 mm lower than its analogue. Despite the minor advantages, BOSCH has one “fat” drawback - there is no possibility of quick (cold) replacement of the diode bridge in the event of its failure.

The electrical contacts are soldered into the bridge; quick replacement of the rectifier on the road will not work. At KZATE it is quite possible and acceptable to replace the rectifier on the road.

Addresses of companies providing generator replacement services (Moscow, St. Petersburg, Kyiv regions)

Difference between belts of 16 and 8 valve engines

For Lada Granta models, an alternator belt with the following markings is used:

• 1118-1041020-07: search index 6RK 823, length 823 mm, thickness 3.0 mm;
• 6PK1123 with air conditioning;
• 6PK1113 without air conditioning, with power steering;
• 6PK745 without air conditioning, without power steering.

Possible faults

Generator breakdowns can lead to battery discharge, or, conversely, to its overcharging, causing the battery to boil over. In both the first and second cases, it will no longer be possible to operate the car.

The degree of belt tension is very important. Thus, an over-tightened belt can lead to problems over time due to high levels of bearing wear. Insufficient belt tension, in turn, leads to periodic slipping, leading to a decrease in the level of charge received by the battery.

A fully operational generator should produce 14.5 V, any excess of this figure is usually a symptom of a faulty voltage regulator. If you do not immediately replace the specified element, then constant recharging of the battery will cause the lead plates to shed and break the battery.

Among the typical and most common generator breakdowns are:

• The control lamp does not light up. The cause of this malfunction is most often a break in the power circuit;
• Also, the warning light may not go out after the engine has been started. Reasons: the generator belt does not have enough tension, the brush assembly is worn out, the diode bridge is broken, the voltage regulator may have broken down, or a short circuit is possible;
• The device is not able to provide the required charge. Reasons: the battery terminals have oxidized or are broken, the alternator belt does not have enough tension, the voltage regulator or diode bridge may be broken;
• The battery began to recharge. Most often, such a malfunction is caused by a breakdown of the diode bridge and voltage regulator already mentioned above, or a sharp drop in voltage in the generator-battery section of the circuit.

Review of prices of generator manufacturers for the Lada Granta

*prices are current as of October 30, 2018.

Recommendations for choosing a converter

In order to ensure stable operation of the power supply system, replace the standard KZATE converter with a BOSCH one. Despite identical technical characteristics, the workmanship of the latter is better.

Also, the BOSCH generator better “transfers” loads in the network from activated equipment, optics, and heaters.

The service life of both KZATE and BOSCH is within 90 – 110 thousand km. mileage Moderate loads and average driving speeds will increase the service life by 10 - 15%.

Generator Lada Granta

The domestically produced car Lada Granta is equipped by the manufacturer with everything necessary for a comfortable trip.
The generator is responsible for converting electrical energy into mechanical energy in all cars, which is a device that ensures the continuous operation of the car from an electrical point of view.

List of online stores providing goods (Moscow, St. Petersburg, Kyiv region)

Instructions for removing the generator

Let's start by describing the process of removing the generator from an eight-valve car that is not equipped with air conditioning. You need to start by disconnecting the “ground” from the battery, for which you remove the negative terminal (this manipulation must be carried out when removing this unit from any modification of the Grant, this will help to avoid a short circuit). Further actions are performed in the following order:

• the bolts on which the motor protection is attached are unscrewed, after which it is removed;
• disconnect the block with wires from the generator;
• after removing the protective cap of the nut holding the power drive, the nut itself is unscrewed and the wire is disconnected from the generator;
• then the upper mounting nut of the generator is unscrewed, and the unit is pressed out using a mounting spatula, and the upper mounting bolt is also removed at the same time;
• the lower fastening nut is unscrewed, the generator is carefully moved away from the engine, and the fastening bolt located below is pulled out;
• the generator is shifted to the right mudguard, the belt is removed from its pulley, the generator itself is pulled out;
• The process is completed by removing the belt from the crankshaft pulley.

Now let's look at a similar process carried out on a sixteen-valve Grant without air conditioning. Such machines are equipped with belt tensioners, and therefore the work described has some differences. So:

• First, the mounting bolts are unscrewed and the block is disconnected from terminal “D”;
• then the cap covering terminal “B” is removed;
• then the nut holding the wire tip is unscrewed and the nut holding the tension bar is loosened;
• the adjusting bolt of the tension mechanism is turned counterclockwise, and at the same time the belt tension is loosened with a 10 key;
• the generator is moved towards the motor, and the belt is removed from the pulleys;
• then the tension mechanism adjustment bolt is unscrewed and removed, and the tension bar is dismantled;
• the fastening nut located at the bottom is unscrewed;
• the spacer sleeve is removed, after which the mounting bolt located at the bottom is removed out;
• Finally, remove the tension bar and remove the generator out.

Now let's move on to describing the process of removing the generator from a car equipped with air conditioning. Since the air conditioning devices installed on Grants operate from the generator belt, they must be carefully moved to the side, after which you can proceed directly to the removal itself.

To successfully carry out this procedure, you must sequentially perform the following steps:

• to begin with, all the bolts that hold the cushions and bracket are treated with WD-40;
• then the mounting bolts are unscrewed and the protection is dismantled;
• after the WD-40 starts to work, unscrew the bracket nut;
• the jack is installed in front of the car, on the right, while the bolts holding its right front wheel are loosened;
• lift the jack, while hanging the wheel, and then remove it from the car;
• Next, the tension roller is dismantled, then the bolts that secure the pillow are unscrewed;
• the car is carefully lowered, hanging it (thus, the cushion moves towards the motor, opening a direct path to the generator).

At the final stage of work, you will need to remove the generator using one of the methods described above.

Reviews

Conclusion

The service life of a standard generator is 95 – 100 thousand km. In rare cases, the resource is reduced by 15 - 20%. The main reasons for premature wear:

• short circuit in the circuit;
• insufficient tension of the converter belt;
• poor contact on power cables;
• moisture, oil, water, antifreeze got inside the generator, which resulted in failure.

Selection of components

Until recently, the Grants produced by the Volzhsky Automobile Plant were equipped with KZATE 115A generators with a rated voltage of 14 V and a maximum electric current of 115 A. Car owners often complained about the low quality of the diode bridges of these units, and many other questions also arose, for example, regarding the quality of its assembly.

A much more reliable, and now the most widespread, generator is the Bosch 135 Ampere generator, which all Grants have been equipped with over the past few years. Such generators cost approximately 5,000 rubles, but do not have any serious complaints in terms of quality. A fairly powerful unit 9402 is also suitable for Grant.

Separately, it is worth mentioning the generator belts. Their recommended service life on Grants is similar to the warranty period of the car, but, as experience shows, the belt breaks after about 5,000 km. However, preventing belt rupture is quite possible; this is facilitated by regular checks of its condition, ideally carried out before each trip.

It is also important for the owner of the Grant not to miss the moment of replacement. It is not difficult to understand that a possible belt rupture is imminent - it begins to make whistling sounds when the engine is not warmed up and in damp weather. If a similar problem occurs to you on the road, check the degree of belt tension - quite often it only needs to be tightened a little, after which you can safely drive on. But you will still have to replace such a belt.

New Lada: Battery died overnight reasons