How to change the alternator belt on a Lada Priora with your own hands: instructions with photos

03/04/2022 18,055 VAZ Priora

Author: Ivan Baranov

The new version of Lada-Priora really attracted domestic car enthusiasts. But, like any other car, it needs timely service. For example, the Priora alternator belt must be changed after a certain mileage, and its condition must be checked regularly.

Lada Priora differs from previous models in comfort and improved handling. But the main differences are under the hood. Everything here is located differently than in previous models. As a result, not all specialists even know how to replace the belt and tension it. New models are equipped with additional systems. Air conditioning and power steering (EUR) added comfort, but such changes complicated the approach to the generator.

In versions with power steering or air conditioning, the belt is longer when compared with the regular version of the car. As a result, we will look at how the change occurs in the first and second cases on models 16 and 8 valves.

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Replacing the Priora generator 16 valves with your own hands video

VAZ car models usually do not present any difficulty with simple repairs or disassembly, they are inexpensive to service in almost any service center, and the basic configurations, if necessary, are suitable even for beginners. But if you need to replace a Priora 16 valve generator with air conditioning or power steering, dismantling it will be quite difficult due to the narrower space under the hood, and preparation is required.

Why, in fact, is it difficult to replace a generator on a Priora 16 valves?

The sixteen-valve version has a much narrower distance between the head and the radiator than the eight-valve version. If you remove the mounting bolts on a 16-valve generator, it will still not be possible to remove it - it will rest against the radiator. Because the free space under the hood will be occupied by a compressor or pump. Do not pull on the generator under any circumstances, this will damage the radiator. If something doesn't come off on its own, don't force it.

How to remove the generator

It is preferable to have a crane beam indoors; in extreme cases, you can use a jack on wheels, special for hanging the engine. You should proceed in the following way.

Disconnect the battery terminals.
Hang up the motor.
Remove the drive belt.
Loosen the hoses on the power steering or air conditioning.
Remove the mountings from the generator.
The generator can now be disconnected and powered up. First to the side, then up.
When all wiring is disconnected, the generator can be removed.

Replacing the alternator belt on a Priora 16 valve is carried out in the reverse order, just install the new part following the instructions.

How to remove a generator on a Lada without air conditioning

If you do not have additional equipment installed, replacing the Priora 16 valve generator will be a little easier, since there will be more space under the hood.

Remove the negative terminal from the battery.
Remove the protection from the engine.
Unscrew the nut on the belt tensioner (not completely, a maximum of four turns). Now you can turn it around by turning the screw a little. When it is loose enough, you can remove it.
Remove the protective cap to later remove the terminal from the wiring harness. Now you can remove the wiring block.
Remove the nut to remove the top mounting bolt, then do the same with the bottom mounting bolt.
Remove the belt and then the entire generator.

Since in advanced configurations with air conditioning the belt on the generator is longer, then if it is necessary to replace it, you need to remember some subtleties. Especially if you feel that the quality of grip on the rollers has become much worse, then you will have to re-tension or change them. The first thing that indicates a problem is a whistle, a clear decrease in the battery charge level, even if it should be fully charged. New batteries can be ordered here: https://www.rimir.by/products/car/akkumulyatory-95/. In this case, first of all, you should look at the belt to see if it is elastic, if there are any third-party cracks on it.

Do-it-yourself removal and replacement of the Lada Priora alternator belt

Replacing the Priora 16 valve alternator belt should be done after 60 thousand kilometers, or once every two years.

How to change power steering

You will need an inspection hole and a wheel wrench.

Loosen the nut to remove the adjusting bolt.
Now you can move the generator away.
Removing the right front wheel and its wheel arch liner will reveal the space in front of the old belt.
From here it can be easily removed.
You can install a new one. The main thing is to tighten it correctly and well.

How to tension a belt and check its tension

For Priora, in addition to the original ones, similar belts from foreign brands such as Contitech, Dayco, Gates, and Flennor are recommended.

Loosen the roller nut; you will have to hold the cage with a wrench. By then rotating this key, the clip can be turned.
Tighten the nut against the roller. Check the quality of tension only on the long section between the pulleys. If, when pressing on the belt in this place, it bends no more than 10 millimeters, the tension is appropriate.
If your Lada has a hydraulic booster, you should tighten it a little more. If you don't pull it tight enough, it will whistle obviously, a defect that can be easily detected by ear. Then pull it a little tighter. If you hear not a whistle, but a hum, the belt, on the contrary, needs to be lowered.

On a Priora, in a regular service, changing just the belt can cost from 300 rubles (not counting consumables). If the generator is with rollers or mounted, then the price will increase significantly to one and a half thousand rubles. Do not forget the receipt for the services provided; the warranty for the work performed must be at least six months; if the belt deteriorates due to poor installation or tension, you must demand a replacement at the expense of the service.

Replacing a belt in a configuration without power steering

If power steering, that is, power steering, was not included in the configuration of the Lada Priora car, then the instructions will have a certain form.

It is best to drive the car into an inspection hole to carry out work. Among the tools, you should arm yourself with a wheel wrench, a set of regular keys, and also a puller for the fender liner.

The process of replacing a belt on a Priora, where there is no power steering, looks like this:

loosen the generator mounting nut;
unscrew the adjusting bolt;
move the generator towards the engine;
remove the front right wheel;
remove the fender liner to gain access to the belt;
remove the belt from the rollers;
install a new spare part.

At the same time, check that the tension is correct. There are recommendations here, which you will learn about a little later.

How to tighten the alternator belt on a Priora 16 valves

So, the belt should be tightened in some cases:

If the battery is insufficiently charged, if the on-board network voltage decreases when the engine speed decreases
When the belt whistles (when water gets on it or in damp weather)

First of all, open the hood of the Priora and, using a 13mm wrench, loosen the upper bolt of the generator:

Now you need to set the optimal belt tension by tightening or unscrewing the tension bolt of the mechanism. The diagram below clearly shows where the generator needs to be moved to loosen the belt, and where to tighten it.

Now turn the adjusting bolt in the direction you need to adjust the belt.

When the optimal tension is achieved, it is necessary to tighten the upper bolt of the generator. Then we start the engine, turn on the maximum energy consumers, such as: high beams, heater, heated rear window. And if, when they are turned on simultaneously, the belt does not whistle and the engine speed does not drop, then we can assume that the belt is tensioned normally.

When you have dealt with this, you can tighten everything thoroughly and check it again. It is worth checking the tension periodically, as the belt tends to stretch.

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How to tension the alternator belt

Many car owners are interested in the question: how to tighten the alternator belt? After all, the battery charge level and the voltage in the car’s electrical network depend on this. Also, the condition of the belt itself, as well as the condition of the crankshaft bearings and the generator shaft, depend on how the generator belt is tensioned. Next, we will analyze in detail how to properly tension the alternator belt with a specific example.

How to get rid of a whistling alternator belt on a Lada Priora - step-by-step instructions

To carry out the manipulation, loosen the fastening bolts, then tighten the adjustment bolt a few turns, achieving optimal tension. A correctly tensioned drive should bend no more than 1 cm under hand pressure. If this cannot be achieved even with the bolt tightened to maximum, the belt should be replaced.

If the pulleys become oily, the drive should be removed and the inside should be wiped with alcohol or gasoline. Pulleys are cleaned in the same way. If the belt has been in an oily state for a long time, it is recommended to replace it, since fuels and lubricants destroy rubber. Also, current seals and gaskets must be changed.

If, as a result of diagnostics, it was revealed that the front bearing of the generator is whistling, it is replaced. To do this, remove the unit from the car, dismantle the front cover and, after removing the faulty bearing, press in a new one. This is also done when the pulley is skewed and the generator shaft is jammed.

Source

In what cases does a car need to be replaced?

In what cases is it necessary to check and change the belt on a Lada Priora 8 or 16 valves, which belt is better to use, how to tighten the tensioner correctly?

First, let's look at the main signs of wear:

First of all, the check is carried out if the strap begins to whistle. The whistle usually appears when starting the engine, increasing the speed, or activating electrical equipment. Sometimes fixing the problem involves tightening the strap by tightening the tension roller. If the tension is normal, there is a possibility that one of the drives, for example, a compressor or generator unit, is jammed. Also, the whistling may be due to wear of the bearing elements of the Conder clutch; all worn bearings must be replaced.
With the motor turned off, you should carefully inspect the device. If it is clear that the strap has lost its elasticity or has become damaged in the form of cracks, delamination or tears, this indicates that it will soon have to be replaced.
Looseness may also be due to wear on the tension roller.
The car begins to shake when the electrical equipment is activated. This problem happens very rarely and usually in such cases car owners have no idea what to do. Reduced traction and shaking can be caused by high loads on the car's electrical network.
The low battery indicator began to light up on the dashboard, and you are sure that the battery itself is functioning normally and is fully charged. But keep in mind that this problem may also be associated with wear of the component parts of the generator set, for example, brushes or rotor (video author - Vladimir Z).

https://youtube.com/watch?v=5eDOX2gninQ

B2vu82nv_inettools.net_rotate_image

Using a Phillips screwdriver, unscrew the self-tapping screw securing the shield to the fender liner and remove the shield.
Using a Phillips screwdriver, unscrew the self-tapping screw securing the shield to the fender liner and remove the shield.

Using a Phillips screwdriver, unscrew the self-tapping screw securing the shield to the fender liner and remove the shield.

We inspect the belt. There should be no cracks, tears, or detachments of rubber from the fabric base.

Principle of operation

When you turn the ignition on, current from the battery enters the field winding through the brush assembly, where a magnetic field appears. When the crankshaft rotates, the rotor goes into rotation. The magnetic field passes through the stator winding and an alternating voltage is generated at the output. Having reached a certain rotation speed, the excitation winding begins to be powered directly from the generator.

Basic faults

Why does the generator not charge the Lada Priora car? There may be several reasons:

the diode bridge is damaged;
the turns of the stator winding are closed;
slip rings wear out;
the pulley is damaged or worn out;
the wires of the charging circuit are damaged;
the bearing is destroyed or worn out;
the voltage regulator is damaged;
The current collecting brushes wear out.

In all of the above cases, repair of the Lada Priora generator will be required.

Belt life

Drive manufacturers claim that the alternator belt for the Lada Priora is 16 cl. without air conditioning it can last 120 thousand km. This is acceptable if all systems work flawlessly and no external factors affect this part of the car. But in reality this is not the case; the operation of the belt is affected by many things, including temperature changes.

Recommendations from experts and Prior owners boil down to the fact that it is better to change the drive every 50-70 thousand km, provided that high-quality spare parts are used.

How to change the alternator belt on a Priora

Proper electrical equipment of any car begins with energy sources. And these are two interconnected and necessary components - a generator and a battery. They cannot live one without the other and a car without an electrical system is like without wheels. If the generator produces a current that is even slightly different from the rated one, the entire control system, led by the ECU, does not work correctly, if at all.

What happens if the alternator belt breaks?

Not only the voltage of the on-board network, but also the correct charging of the battery depends on the operation of the generator. As soon as the generator reduces the charging current, the battery will begin to discharge quickly, which will result in its rapid failure. with a normally functioning battery charging system, the source of electrical energy will last at least 6-7 years.

The generator will not rotate on its own, so you need to somehow set it in motion. For this purpose, a pulley is installed on the generator shaft; on VAZ 2110 Priora engines, a multi-jet pulley is installed. The pulley rotates using the generator belt, and the belt is driven from the pulley on the engine crankshaft. The belt also drives the air conditioning compressor if the vehicle has one, and can also drive the power steering pump if power steering is included.

Alternator belt dimensions

The length of the alternator belt on Priora depends on the vehicle configuration. Too many companies, companies and offices have begun to produce spare parts for Prioras, so the belt markings (2110-1041020) may be different. The main thing to know is that the length of the belt for the simplest configuration of the car is 742 mm, this is without power steering and air conditioning, 1115 mm is the length of a car belt with power steering, and the longest belt, 1125 mm, is installed on a Priora with air conditioning. The price of the belt should not exceed 720 rubles, but it cannot be cheaper than 500. This is a completely outright fake.

When to change the alternator belt

The timing of replacing the alternator belt on a Priora depends on what equipment is installed on the car, or simply, on how many mechanisms it has to drive. For cars with air conditioning, the average mileage of the drive belt is 45-50 thousand km. The factory recommends changing the belt no more often than after 60 thousand km, but it doesn’t know what quality of belts we buy. We don’t know either, so to avoid surprises, it’s better to change the belt earlier. Under normal operating conditions, as a rule, the branded belt is changed once every two years. But before you change the alternator belt on a Priora, you should make sure that it has already served its purpose.

Signs of belt wear

However, you should not pay much attention to the replacement schedule, but you should still be guided by signs of belt wear. They will speak eloquently about the need for replacement:. obvious signs of wear; mechanical damage and scuffing; characteristic whistling of the belt on the pulleys; lack of adjustment of the generator belt tensioner to the nominal deflection.

obvious signs of wear; mechanical damage and scuffing; characteristic whistling of the belt on the pulleys; lack of adjustment of the generator belt tensioner to the nominal deflection.

Under normal conditions and with a working belt, it should bend no more than 8-10 mm under a load of 10 kgf. Not everyone has experience measuring forces and not everyone carries a dynamometer in their trunk. To more or less accurately determine the belt tension on a Priora, you can use a kitchen or simple household steelyard. Its readings can be considered accurate for measuring the degree of tension of the alternator belt. When checking the condition of the belt, it is imperative to check the condition of the tension roller. If it has play or increased wear, you will have to buy a generator belt tension roller.

How to adjust belt tension on a Priora

To adjust the tension of the alternator belt, Priora sells a special key, although you can do without it. You can carefully insert two bolts of the appropriate size into the grooves on the regulator, insert a powerful screwdriver between them and thus replace the special key. But you need to adjust the tension carefully, since too much will quickly destroy the front bearing of the generator, and too little can cause the belt to slip along the pulley.

By the way, there are lubricants for generator belts that temporarily extend the life of the belt and restore the characteristics of the rubber. They also enhance the friction properties of the belt drive. Aerosol lubricant costs about 300 rubles, and there are quite a lot of companies that produce them.

How to repair a generator

Now you know how to unscrew the pulley, remove the belt from the generator and replace it on a Lada Priora car, which can come with or without air conditioning and power steering.

But it’s worth saying that the generating device on the Lada Priora is definitely not the weak point of the car. According to technical documents, preventive checks should be carried out at intervals of 50 thousand kilometers. And this despite the fact that in practice the resource of the node is much higher.

In terms of repairs, brushes are usually changed every 150 thousand kilometers. Other elements are designed to last a lifetime.

But there is an important nuance. Brushes, as a separate element, cannot be changed on the Lada Priora. They are an integral part of the voltage regulator. The latter cannot be repaired. That is, it will have to be replaced entirely.

It's nice to know that a new voltage regulator is inexpensive. The cheapest options will cost 200-300 rubles. More expensive parts cost 600-800 rubles.

There is no specific serial number to search for the original generator, since Lada Priora is equipped with spare parts from different manufacturers, as well as with different characteristics. These are brands such as Orbita, VTN and Energomash.

Therefore, when they talk about how to change the brushes from a generator on a Priora, they mean buying a new voltage regulator with brushes assembled.

They can be changed by removing the generator or without prior dismantling.

Repair without removal

If you have a simple Lada Priora equipment, which does not include air conditioning, then replacing the brushes without removing the generating device itself will not be difficult.

To do this you need:

disconnect the battery;
remove the power wire from the generator;
disconnect the control lamp input;
unclip the 3 latches to remove the plastic protective cover;
unscrew only 2 fasteners that hold the regulator together with the brushes;
replace the voltage regulator;
Reassemble in reverse order.

Be careful and careful when removing latches. Many owners of Lada Priora complain that it is quite inconvenient to snap them off. Losing patience, they often make sudden movements, and the latches eventually break. Be careful and patient. No other way.

After this, do not forget to check the correct operation of the automotive electrical system with a new part.

This option is optimal for replacing the regulator if the air conditioner is not included in the package. This is due to the presence of sufficient space in the area where the unit is located. That is, there are no problems with sticking your hand into the gap and performing all the manipulations.

Now to the question of whether it is possible to replace the regulator without removing the generator, if air conditioning is included in the package. Replacing the brushes and regulator assembly itself is no different. But there is another problem. This is the lack of sufficient space to stick your hand through and perform operations. There is no required gap between the engine and radiator. This is especially a problem for people with large hands.

In addition to trim levels with air conditioning, a similar situation is observed on Lada Priora with a 16-valve engine.

But there is a solution. It is necessary to disconnect the air filter housing and then move it to the side, or completely dismantle it. As a result, there should be enough space to avoid dismantling the generating device.

Repair with removal

Everything here is clear and obvious. In general, the unit is easier to repair when it is first removed. This is due to the fact that all the elements are in front of your eyes, you can rotate the generator as it is convenient for the master.

In terms of the procedure for replacing brushes on a removed generator, there are no differences. As in the previous case, you will need to remove the cover, unscrew the fasteners, check the condition of the element just in case, and replace the regulator with brushes assembly.

This makes it much easier to finally make sure that you did the right thing when deciding to replace the brush assembly. The need for replacement is indicated by uneven wear, brush sticking, and a length that is 5 millimeters or less. These are obvious signs.

As a result, the situation with the belt and alternator on the Lada Priora turned out to be not as simple as many expected from a domestic car. But this still does not prevent you from carrying out repair and restoration work yourself.

Has anyone had to change a belt or alternator on a Lada Priora? Did you expect something like this from AvtoVAZ? What surprised you or didn’t you like? At what stage did difficulties arise?

How to replace or tighten the alternator belt on a Priora - technology and features of belt replacement

Hello, dear motorists! Well, let's move on to specific cars and their lovers?

“PRIOROVODY” - this is what the owners of cars of one of the latest VAZ series called “Lada” - “Priora” call themselves.

Many people liked the stylish and modern car. The deep-rooted belief that domestic cars are worthless is gradually dispelling. The cars have indeed become more comfortable and attractive, and their technical equipment has improved significantly.

The differences between the Priora and previous modifications are noticeable immediately as soon as the hood is opened. The new owner of a brand new Lada will have to learn a lot all over again. Such a simple, at first glance, manipulation as replacing the alternator belt on a Priora will require considerable effort.

A distinctive feature of new car models is the ability to choose a car with additional equipment already included in the basic configuration. Thus, Priora can be equipped with power steering (power steering) or air conditioning.

Of course, driving such a machine becomes even more comfortable, but the price for comfort is a more complex design of the generator belt drive. The generator belt of a Priora with air conditioning or power steering is much longer, describes a different trajectory (alternator belt diagram), is serviced and changed according to completely different rules.

Tensioning the Priora generator belt - features

Checking the tension of the generator belt

Any car owner knows that sooner or later the moment will come when you have to tighten the Priora alternator belt. The belt drive is quite durable, but during operation the belt slightly stretches and the degree of adhesion of its surface to the planes of the pulleys and rollers decreases.

As soon as you hear that the alternator belt on the Priora is whistling, you need to immediately tighten it. This is not difficult to do. In order to tension the alternator belt on the Priora, you need to prepare an open-end or ring wrench 19 mm and a special double-open-end tension wrench for the roller.

It is easy to recognize - it is similar to the key that is used when replacing disks on an angle grinder. The alternator belt adjustment on the Priora is done as follows:

holding the tension roller cage with a tension wrench, loosen the roller nut;
by slightly rotating the tension wrench, we turn the eccentric ring of the tension roller of the Priora generator belt, increasing the belt tension;
tighten the roller nut.

If you press on the belt at the longest gap between the pulleys, it should bend within 8-12 mm, but this rule applies only to the most modest configuration.

If the car is equipped with power steering or air conditioning, the belt describes a different trajectory, which leads to a decrease in the contact area of the belt surface with the pulleys.

To compensate for insufficient contact, you will have to tighten the alternator belt on the Priora a little more. If it is not possible to use the services of qualified specialists, then you can try to adjust the tension of the Priora generator belt, which is called “by ear”. If the tension is insufficient, the belt will slip and “whistle”, and if it is too tensioned, the generator bearings will begin to hum.

Replacing the Priora generator drive belt with a “surprise”

An experienced driver can replace the alternator belt on a car even with his eyes closed. The belt is quickly removed and installed on a machine that does not have additional equipment.

To do this, loosen the tension roller of the Priora generator belt, remove the old belt, put on a new one and tighten it. But if the car is equipped, for example, with power steering, you should be prepared for a very unpleasant discovery.

The additional pulley forced the designers to change the location of the generator, raising it up, and the hydraulic booster is located below. But the power steering pulley is located so low that I had to run the belt around the engine mount. In field conditions, it will no longer be possible to replace the belt, unless you happen to have a powerful bottle jack lying around in the trunk.

The algorithm for replacing the alternator belt on a Priora looks like this:

the belt tension roller is weakened;
the power steering pulley is unscrewed and removed (otherwise the engine mount bolt cannot be removed);
the engine mount bolt is unscrewed and removed;
using a jack, lift the engine until a gap is formed under the support sufficient to run the belt;
The alternator belt is replaced and the entire structure is reassembled in the reverse order.

What to do if the alternator belt breaks

Anything can happen on the road, and we cannot exclude those moments when, for some reason, the generator drive breaks. If this happens, you can carry out a simple procedure to replace it with improvised means and go to a service station or auto store to purchase an original spare part.

A strong rope or women's tights folded into a narrow strip are suitable as a substitute for the drive.

We lower the tensioner to the limit to facilitate installation of the temporary drive.
We put a rope on all the rollers.
We return the tensioner to its original position, checking the deflection of the rope (it should not be more than one centimeter).

On cars without power steering or air conditioning, the replacement method is slightly different:

Loosen the top nut of the generator.
We tighten the tension bolt to bring the generator closer to the engine.
We install the rope.
We unscrew the tension bolt, moving the electric generator away from the engine.
Having achieved the required tension, tighten the upper fixing nut.

If this happens within the city, and the car has a good battery, you can immediately go to a repair shop or store. The battery charge lasts for 20-40 km, but to be sure of covering such a distance, you should turn off all electrical appliances.

Why does the alternator belt whistle on a Priora when it’s cold?

On the Lada Priora, the alternator belt is closed. It is located in the enclosed space of the engine. And if there is no crankcase protection, it turns out that water gets on the belt, or wet weather. And it turns out that even a new, working one can whistle for a while, then the whistle stops. The new alternator belt whistles even in new cars; if it is open, it is enough to drive through a puddle. After 20-30 seconds the water dries and the problem is resolved.

Alternator belt and air conditioner Lada Priora

Many people do not know what an overrunning clutch is and what it is needed for. And modern Lada Priora generators are equipped with this particular coupling. The anchor of the generator itself is attached to it. In order for the belt to run smoothly, without jerking, the overrunning clutch is responsible for this.

Bearings, unfortunately, do not last forever and after 100-120 thousand km they begin to jam. And because of this, it can begin to “walk” to the right and left, that is, warp. Also, due to the tensioner wedge, it begins to “walk” not parallel on the pulleys. To prevent the generator belt from whistling, it is necessary to constantly check the pulley to see whether it is spinning or not spinning, and whether there are any distortions.

Working unit of the Lada Priora generator

The largest pulley is at the crankshaft, the smallest is at the generator. Over time, the pulley can become dirty. Dirt and stones get clogged into the grooves, causing wear and whistling of the alternator belt. Clean the grooves from dirt.

During operation it may become covered with various deposits. The store currently sells enough cleaning products. Just spray on your belt and it will stop whistling.

Which alternator belt for Priora should you prefer?

Various companies currently produce components for LADA Priora. If we take the alternator belt, then experienced owners of domestic cars give preference to brands such as:

Andycar.
GATES.
Luzar.
BRT.

Of the above manufacturers, the highest quality belts are BRT and GATES; the products of these brands are most often purchased by LADA Priora owners. However, if we talk about the quality of factory belts and non-original ones purchased in stores, then the difference in quality is quite large. A factory original belt can go 3-5 times longer than a non-original spare part.

How to tighten the alternator belt on a Priora that does not have an additional option

If a regular Priora does not have an additional air conditioner or power steering installed, then the generator drive belt is tightened by moving the unit itself on a movable lower mount. The generator belt tensioning system on such machines is designed in such a way that there is no need, as was the case on previous models, to displace the generator using a crowbar or pry bar. There is a special device here that allows you to perform this operation by rotating the adjusting screw with a wrench. To tighten the belt you only need two keys:

10mm ring wrench;
wrench 13.

This is quite enough. According to the procedure, first of all it is necessary to turn off the power to the machine.

After disconnecting the negative terminal, you can begin adjustment. First of all, loosen the fixing nut 13 on the upper mount of the generator by one turn. After this, you need to loosen the nut of the lower mounting bolt by 1.5-2 turns. Well, after that, you can tighten the belt by rotating the long adjusting bolt clockwise with a 10mm socket head. During the tensioning process, you need to be careful not to tighten the belt too much. If the tension is strong, it puts too much load on the generator bearings when the engine is running, and quickly damages them. But we must take into account that modern dynamos installed on Priora are designed for a limited number of bearing replacements. They can be replaced 2 at most 3 times. Then the body needs to be changed. In this regard, the belt tension must be strictly defined. If you don’t have a special measuring device, you can check it by eye. You need to take the belt in a free area and turn it. It should rotate freely around its axis by 45 degrees, and with noticeable force by 90. This is a normal position. It is quite possible using a ruler as in the figure.

Problems with an autogenerator and solutions

The Priora generator does not have many disadvantages, but nevertheless it is worth knowing the main types of its breakdowns, their causes and solutions. If, when you turn on the ignition, the signal lamp does not work and the control devices do not show “signs of life,” then you need to check the fuse in the mounting block and the ignition switch itself

In addition, you need to pay attention to the absence of breaks in the power circuits laid to the devices. Here you need to check the orange wire and its connection from the control devices to the mounting block

When the generator warning light does not light up both when the engine is running and when the ignition is turned on, the battery is discharged, the control panel does not work, then the reason may be in the devices, damage to the voltage regulator, wear (freezing) of the brushes, or oxidation of the contacts (on the rings). A break may also occur between the devices and the output from the generator or the leads from the excitation winding may be unsoldered from the contact rings. Here, most often you have to replace worn-out elements with new ones. You need to do the same if the warning light lights up when the engine is running, but the battery is being recharged. This means that the voltage regulator is damaged, which also needs to be replaced.

You will have to work on the car and buy new parts if the generator warning light lights up brightly (or at full intensity) when the engine is running with a discharged battery. This means that either the voltage regulator is damaged, or the valves from the rectifier unit are broken, or the diodes from the power supply on the excitation winding are damaged

It is worth paying attention to the connection of the excitation winding leads at the points of attachment to the rings, and check for breaks in the stator winding (short to ground).

Tension with adjuster bar

Securing the generator using a strip

This method is used for older cars (for example, “classic” VAZs). It is based on the fact that the generator is attached to the engine using a special arc-shaped strip, as well as a bolt and nut. By loosening the fastening, you can move the bar with the generator relative to the engine to the required distance, thereby adjusting the tension level.

Actions are performed according to the following algorithm:

unscrew the fastening nut on the arc-shaped bar;
Using a pry bar, we adjust the position (move) of the generator relative to the engine;
tighten the nut, fixing the new position of the generator.

The procedure is simple, it can be repeated if you were unable to achieve the required level of tension the first time.

Tensioning the alternator belt: a guide for car enthusiasts

The distinctive features of the Priora from previous modifications of the manufacturer are noticeable immediately, literally as soon as we open the hood. Here the new owner of the Lada will have to learn a lot again. This seemingly not very complicated procedure, which allows you to tighten the alternator belt in a Priora car to the required limit, will require considerable effort.

The peculiarity of new car models is that the ability to choose a car equipped with optional equipment is already present as standard. So in the “base” “Priora” can already be equipped with power steering or air conditioning.

Naturally, driving the car becomes even more convenient, but the recompense for comfort in this model is a more complex design of the generator belt drive. After all, the belt itself on a Priora car, which has air conditioning or power steering, is significantly longer, has a more complex trajectory, is serviced and replaced according to completely different rules.

Rules for tensioning and replacing the alternator belt

Compared to the previous VAZ 2110 model, the Lada Priora has a number of significant differences. If before the procedure for tightening the belt was not too difficult, here you will have to make serious efforts. It's all about the availability of additional equipment. After all, Priora, even in the basic configuration, is equipped with power steering and can also have air conditioning, which significantly complicates such a seemingly simple procedure. On the other hand, driving with this equipment is much more comfortable. Therefore, replacement on a car without air conditioning is easier.

Features of belt tension

To tighten the alternator strap on the Lada Priora, you will need not only standard 19mm wrenches (socket and open-end), but also a special one. This is a double-opening tension wrench for adjusting the roller. The pulling process is as follows.

Using a tension wrench, the tensioner roller cage is fixed, after which the fastening nut is loosened.
The tension key rotates and thereby the eccentric race of the tensioner roller rotates, thus the belt begins to tension.
After this, hold the tension wrench and fix the roller fastening nut.

If the car is not equipped with air conditioning and power steering, the belt should bend by a maximum of 12 mm. You should press on the longest section. With additional equipment, the belt is tightened more due to a different trajectory, resulting in a reduced contact area between the belt and pulleys.

Description and location

The generator's job is to provide power to the vehicle's electrical equipment. Like other components in a car, the generator is powered by the engine; to ensure constant rotation of the rotor, pulleys are installed on the generator shaft and the crankshaft of the power plant. A belt is pulled between them. After starting the engine, the crankshaft begins to rotate, and the movement is transmitted through the belt to the rotor.

On the latest Priora models, this element operates the air conditioning and power steering. This material discusses the replacement and tensioning of the belt in a new model car, where additional equipment is installed.

The belt is a consumable item that requires replacement after 45-60 thousand kilometers . The size of the standard belt on a Priora with air conditioning is 1125 mm.

How to replace the Grant alternator belt

The replacement process is not simple and depends on the equipment of the car: whether there is a tensioner, air conditioning. In the latter case, you cannot do without a lift and dismantling the engine mount due to the air conditioning compressor clutch pulley.

For a Granta with air conditioning, for installation you will need to hang the wheel and remove one engine mount.

How to change a belt on a Grant 8 and 16 valve without air conditioning and tensioner

What you will need for work:

a knife, if you just need to cut off an old part;
crank or ratchet with head 13;
long strong wire;
flat screwdriver;
partner – you can replace it yourself, but it’s easier with an assistant.

Step 1. Dismantling

The car is on a flat surface, neutral is engaged without the handbrake. Battery is disconnected.

If the old belt is not needed, we cut it in an accessible place and take it out.

If you need to save the old one, do everything up to step 3.

A replacement is needed with a length of 8223mm, six-wedge. Called 6RK 823. PHOTO: www.zr.ru

Step 2. Remove the generator mount

We approach the generator mount with head 13:

we remove the lower bolt by 2-3 turns;
Use it to completely unscrew the top bolt.

In this situation, we proceed to installation. PHOTO: www.zr.ru

Step 3. Raise the part

Scroll the generator up. The top mount becomes higher than the bracket to which it is screwed.

We press the part to the engine. We fix it with strong wire. For example, we hang it from the cylinder head bolt.

In this situation, we proceed to installation. PHOTO: www.zr.ruAt this stage, you can remove the old part if you did not cut it. We engage fifth gear and push the car back, squeezing the belt with a screwdriver from the generator drive pulley.

Step 4. Install a new one

We pull the new one onto the pulleys.

The installation takes place in the position of the generator when it is pressed against the engine. PHOTO: www.zr.ru

We engage fifth gear, push the car back, pressing the belt against pulley 1 in the picture. This is where a helper will come in handy.

As soon as we put it on, we work in reverse order:

unplug the generator;
press it into working position;
return the upper mounting bolt and tighten the lower one.

Replacing the alternator belt on a Grant with air conditioning

It's more difficult here. Step by step:

we drive the car onto a lift or overpass;
remove the tensioner;
take off the front right wheel;
we support the internal combustion engine and dismantle the pillow;
change the required part.

The whole problem is in points 5 (air conditioning compressor clutch) and 7 (right engine mount) - our belt passes through them (number 6). The rest: 1-drive of auxiliary devices, 2/3-tensioner, 4-generator. PHOTO: www.zr.ru

What you need

new belt marked 6РК 995;
spanners 8, 19;
socket wrenches 8, 10;
Torx keys T20, T27;
ratchet with extension and heads E14, 17.

Step 1. Tensioner

The car is on a lift or overpass.

The front right wheel studs are loose.

Open the hood. Remove the terminals from the battery.

We find the tensioner, take out the spanners 19 and 8:

19 we put on the lead screw;
8 hold the locknut;
we touch;
Turn the lead screw clockwise to loosen the tension.

We remove the lock nut and loosen the tension. PHOTO taken from: www.zr.ru

We need keys 8, 10. Remove:

central shield (numbers 1, 5, 7);
right shield (number 2).

Step 3. Wheel

Remove the front right wheel. Using keys 8, Torx t20, t27, we dismantle the fender liner according to the diagram.

To work with the fender liner you need three different keys. Having removed it, we gain access to the engine support. PHOTO: www.zr.ru

Step 4: Engine Mount

Getting ready to remove the engine mount.

We securely support the engine under the crankcase - the support should take the weight of the internal combustion engine.

Using a wrench or ratchet with an E14 head, unscrew the screws securing the support to the engine.

Use head 17 to unscrew the screws securing the support to the body.

We remove the support. Make sure the weight of the engine is securely supported in the crankcase!!! PHOTO: www.zr.ru

Step 5. Dismantling and installation

We remove the belt from the pulleys and rollers and pull it out.

We install the new one in the reverse order.

Do not mix up the screws that secure the mount to the engine. The top one (included in the triangular part) is shorter than the bottom one! Confusion is dangerous for the further operation of the machine. PHOTO: www.zr.ru

The final tension can be adjusted by adjusting the tensioner.

Bearings

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Apart from him, there is nothing to hum there. Although in some cases the diode bridge may also produce a hum. You should know that the more consumers are involved in the car, the more difficult it is for the generator to turn. The load on the bearings automatically increases

First of all, experts see the reason in the bearing. Apart from him, there is nothing to hum there. Although in some cases the diode bridge may also produce a hum. You should know that the more consumers are involved in the car, the more difficult it is for the generator to turn. The load on the bearings automatically increases.

As you know, generator bearings are installed for easy rotation of the rotor armature. One of the bearings is placed in the front cover, the other is pressed onto the rotor. It is noteworthy that both bearings are pressed, so replacing them is not so easy.

As a rule, if the bearings fail, then in addition to the hum, the battery is no longer charged.

Experts recommend paying attention to the nature of the hum. If it resembles a whistle and is heard mainly under the hood, then it’s clear that the bearing is worn out

Before replacing bearings, you should find out what brand they are. If they are domestically produced, they are inexpensive. The price of imported spare parts is much higher.

The service charges at least 600-700 rubles for the work of replacing bearings. But this can be done with your own hands.

Replacement is carried out as follows:

the car engine turns off;
the belt is removed;
the wiring is dismantled, the generator is unscrewed and removed;
disassembling the generator begins with removing the rear plastic cover;
brushes and relays are removed;
the diode bridge is dismantled, which should be freed from 3 screws;
Next, the front part is disassembled, the rotor is carefully clamped in a vice, and the pulley is removed;
the front cover with the bearing is removed;
the rear bearing is pressed from the armature (a puller is used).

Symptoms of malfunction and their elimination

You can determine whether a replacement is needed or whether you can simply tighten the power steering belt with air conditioning on the Priora 16 valves only after inspecting this component. To do this, just open the hood and examine the belt; it is located next to the right front wheel. There are signs that indicate it's time to check the alternator belt: something whistling and squeaking from under the hood.

The reasons may be the following:

Antifreeze, oil or other working fluids have come into contact with the generator pulley or belt.
The belt is worn out - you can tell by its appearance.
The tension has dropped - in this case, the component must be tightened.
The bearing in the generator is worn out.

When the belt whistles in a Priora with 16 valves, it’s time to carry out diagnostics. If there are cracks, tears or other serious damage on its surface, then replacement is required. If the generator component with hydraulic booster and air conditioning looks normal, you should check its tension; the optimal level of deflection is 6-8 mm - you need to press the component in the middle between the generator and the pulleys.

Are there visible coolant or engine oil stains on the surface? If the contamination is not significant, they can be cleaned. If the liquid has penetrated into the material, cleaning will not bring any results; replacement is needed. If the component is well tensioned and no damage or stains are visible, then you should move on to checking the bearings. They may need to be changed.

Sometimes the generator consumable whistles due to the poor quality of the product. This is especially true for Chinese analogues, which are not of high quality. Such a belt whistles a lot already at the fifth thousand mileage, it is better to change it immediately. We recommend purchasing consumables designed for your model, in our case, for a Priora with a 16-valve engine.

Replacement

Required Tools

We will prepare everything necessary for the repair:

Lubricant WD-40.
Keys to 19, 17.
Two copies of the key for 13.
Head for 10 and 17.
Jack.
Special key for tensioning.
Lever arm.

The alternator belt on a modified Priora with air conditioning and power steering runs around the engine mount. The designers decided to carry out such a modification for the Priora 16 due to the fact that the power steering pulley is installed low. Hence there are additional steps that you need to be aware of.

Step-by-step instruction

First of all, we need to wet the bolts that hold the bracket and motor mounts. Wait 10-15 minutes for the lubricant to spread over the surface;

The replacement is complete, all that remains is to adjust the alternator belt with power steering and air conditioning. The new consumables on the Priora will have to be tightened several times until you get the required tension. If the component whistles or there is a hum coming from under the hood, then it is necessary to carry out repeated adjustments until these defects are eliminated.

Generator malfunctions and ways to eliminate them

There aren't many problems. They come in two main varieties.

Type of faults

Signs

The generator and battery always work together. For the battery, the generator is the only autonomous power source, which allows it to remain as a backup power source for the on-board network when the generator is not working. In turn, by constantly recharging the battery, the generator makes it possible to start the engine at any time.

Generator malfunctions do not occur out of nowhere; there are usually preconditions for breakdowns. And the owner has the opportunity to correct the malfunction in a timely manner. Otherwise, the generator will need to be repaired on Priora.

Difficulty starting the engine

Problems with starting the propulsion system directly indicate problems with the generator. If it malfunctions, the battery experiences a constant lack of charge, which means it does not have enough power to rotate the engine flywheel through the starter. A discharged battery is the main result of a generator breakdown. A malfunction of this device can result not only from a lack of charge, but also, conversely, from overcharging. Such phenomena arise due to the failure of the relay regulator, i.e., current is generated in much larger volumes. This leads to boiling of the electrolyte in the battery banks and, as a consequence, to failure of the battery.

Generator characteristics

Communities Lada Priora Lada Priora Club Blog The ignition coil
of the VAZ 2170, or Lada Priora, is equipped with a classic alternating current device, complemented by a diode bridge for rectifying electricity and a voltage regulator. Works in parallel with the battery in all modifications of Lada Priora with engines operated at temperatures from -40 to +45 degrees.

The Priora factory generator 5102.3771 is produced by the Russian brand “Pramo”.

Its main feature is the increased current output parameters at low speeds (at 300 rpm up to 6 Amperes). Undoubtedly, this is a significant advantage, especially when operating a car in winter at subzero temperatures. Moreover, the use of such a unit allows the use of an automatic transmission.

Generator device

The standard Priora device has the following characteristics:

weight 5410 grams;
gear ratio 1/2.4;
power 205 watts;
current strength at maximum values 80 Amperes;
voltage range 13.8–14.4 V.

The peculiarity of the generator connection involves power supply using the fuse box, which means that the chain then leads to the battery and the ignition switch. The generator is also connected to a lamp indicating low battery. When the propulsion system starts, power is supplied to the device winding through three diodes of the rectifier unit. The correct operation can be easily monitored by the lamp indication. When the ignition key is turned to the first position, the warning light lights up on the instrument panel. The engine starts - it goes out (if the generator is working). If the lamp is on, the device has obvious problems.

Structurally, the generator consists of a drive pulley, bearings, covers, tie rods, rotor and stator, rectifier unit and voltage regulator. The rotor is the moving part of the device; it rotates on bearings installed in the covers at the front and rear. As the rotor rotates, the brushes rub against the contacts. The alternating current thus generated passes through the diode bridge (rectifier unit), where it is transformed into direct current.

Differences in the design of the generator of different modifications

Non-interchangeable generators are often installed on the Lada Priora. This is due to the presence of additional equipment (air conditioning, power steering). This is reflected in the difference in fastenings. In addition, a special roller can be used to tension the belt.

On Priors with engines 21116 and 21126, the tension pulley is not used.

To protect the on-board network from voltage surges, a capacitor is provided with a capacity of 2.2 μF. It is located on the rectifier block. The capacitor is also used to eliminate interference between the positive and ground of the generator.

Snapshot1111

We tighten the belt until the cutout of the outer race coincides with the rectangular protrusion of its inner sleeve and tighten the roller mounting bolt to a torque of 34–41 Nm. Excessive belt tension reduces the service life of both the belt itself and the bearings of the coolant pump, tensioner and guide rollers. Insufficient belt tension leads to its premature failure and can cause irregular valve timing and, as a result, lead to contact of the pistons with the valves and expensive engine repairs.

We turn the crankshaft two turns until the marks on the camshaft sprockets align with the cutouts on the rear timing cover and check that the rectangular protrusion of the inner bushing of the tension roller coincides with the cutout of its outer race. If necessary, repeat adjusting the belt tension. If belt defects are detected or if there is a significant discrepancy between the position of the protrusion of the inner bushing of the tension roller and the cutout of its outer race (by more than half the width of the protrusion), the belt should be replaced. You should also change the belt if traces of engine oil are found on it (before installing a new belt, you need to eliminate the cause of oil getting on the belt), when replacing one of the rollers or the coolant pump.

The belt check was shown on a vehicle with air conditioning. If there is no air conditioning on the car, then the alternator drive belt should be removed, as shown in the article “Checking and replacing the Lada Priora alternator belt”.

How to determine the need for replacement or adjustment

The condition and tension of the belt must be checked at least once a quarter.

This will allow you to quickly detect weak tension or damage to the belt. A whistle that appears when starting the engine and accelerating the car indicates weak belt tension. Rapid battery discharge (as well as weak charging current) may also indicate a loose alternator belt. The service life of a high-quality alternator belt is 40–60 thousand kilometers or 2 years. After this, the belt must be replaced, even if it looks normal. If cracks or breaks appear on the belt, it must be replaced, regardless of mileage. To determine the condition of the belt, it is necessary to carry out diagnostics.