It is not uncommon for a VAZ 2110 car to whistle in the V-belt connection of the generator. For this reason, it is required to tighten or completely replace it. Today we will tell you in detail about the tightening procedure, and also tell you how it changes.

Why there is a whistle

There are several reasons for the characteristic whistle-like sound.

1. Weak tension. The element slips, and this occurs most actively in the dark. The increased intensity of whistling at night is explained by the fact that the generator additionally works for lighting.
2. The component is gradually destroyed. The belt can dry out, due to which its structure is disrupted, it literally crumbles into pieces. The first signs are cracks, and then whole pieces break off. When driving, the pulley touches, slipping begins. Only replacement is required here.
3. Although moisture rarely hits the belt and evaporates almost immediately, the connection can still whistle. In this situation, tension is required.
4. The generator itself wedges.

Dimensions

It is quite possible that for your 16 valve VAZ 2110 you selected the wrong size of the alternator belt. This is often the cause of whistling. The correct size of the alternator belt for the 8-valve VAZ 2110 should be determined in advance, even before going to the auto parts store.

Sizes are different, and they are individual for each VAZ model.

Speaking specifically about the "top ten", then here adhere to the following rules for choosing the size of the belt:

• In the absence of an air conditioner and hydraulic booster, it will fit 742 mm;
• If the car is equipped with a hydraulic booster, then the size will be 1115 millimeters;
• If an air conditioner is also present, then the optimal size is 1125 millimeters.

Some craftsmen regularly use belts from other AvtoVAZ models - Priora and Kalina - to replace their own belts when repairing their "ten".

Performing tension

If there is no wear on the V-belt drive, but there is a whistling sound, first of all, check the tension level. We will not use complex terminology, but simply advise you to press with some effort on the belt in the middle.

If the tension is correct, then the belt will bend by no more than 8 millimeters. If the deflection is greater, then the element will have to be pulled, and if it practically does not bend, the tension will have to be loosened.

The whistle is not the problem. because of weak tension the battery is not charged efficiently, and the drive itself begins to wear out faster. Excessive tension can damage the alternator bearings and stretch the belt.

The correct tension of the VAZ 2110 alternator belt is performed as follows:

• Loosen the generator mounting from the bottom and top. A nut serves for this;
• Turn the adjusting bolt and adjust the belt;
• If you want to make the tension more, the bolt turns to the right. Thus, you move the generator away from the cylinder block;
• To loosen the tension, move in the opposite direction - to the left;
• Using a wrench, grab the mounting bolt and turn the crankshaft a couple of turns, then check the tension;
• If all is well, the tension is correct, the nut can be tightened back.

We have already figured out how to tighten the alternator belt. But such measures are not always relevant. If the element is covered with cracks, overstretched and no longer stretched, then there is no choice but to replace it with a new one.

In fact, the replacement cannot be called a complex procedure. Follow the instructions and you will succeed.

1. Loosen a little the nut of the bolt from the lower mounting of the car generator, as well as the tension nut.
2. Loosen the tension of your belt additionally. You already know how to do this from the previous section, where we talked about tensioning the alternator belt.
3. Move the alternator toward the power unit to remove the belt from the crankshaft and alternator pulleys.
4. The next step is to install a new item. To do this, you need a quality belt purchased from a trusted store. What exactly this part will be, and what size is not difficult to determine. But quality comes first.
5. First, the belt is put on the crankshaft pulley.
6. Now it goes to the alternator pulley.
7. The last step is to repeat the tension adjustment procedure. You already know perfectly well how this procedure is carried out, so problems should not arise.

As practice shows, many experienced VAZ 2110 drivers, who have been driving this particular model for many years now, carry an additional alternator belt with them in the trunk.

This is due to the fact that its breakage can occur at the most inopportune moment. This node cannot be called the weakest point of the top ten, but problems may arise with it. And it is better for you to be prepared for such a situation.

Otherwise, you will have to call a tow truck, go to the nearest service station, pay big money for the services of masters. Although, if you had a spare alternator belt and a standard set of tools, if it broke, you would have spent literally a couple of tens of minutes and calmly continued driving with a new belt. Therefore, the choice is always yours!

During the operation of the car, the owner is faced with many problems, including an unpleasant situation with. He begins, seemingly for no reason, to "whistle", and it is not so easy to guess at once why this is happening. In our case, we are not talking about a worn out or old belt. Everything is clear here - he replaced all the cases. No, everything is much more interesting, and, like in an exciting English detective story, we will look for a causal relationship.

Inspection of the belt and finding the reasons why the belt whistles.

So why does the new alternator belt whistle? As it turns out, there are several reasons for this, and they are all presented below.

Attachment belt at a glance

Belt transmission is the most common way of transferring rotation to a generator rotor. The method has been used for a long time and differs from others in its simplicity: only two pulleys on the shafts, which are connected by a belt.

The belt itself is responsible for a lot. It is on him that the responsibility of transferring rotation from pulley to pulley falls. You should know that one part of the belt is tightened more than the other... It is the difference in these tensions that determines the tractive effort and its coefficient.

The belt provides clear transmission and is quiet in operation. Quality products are able to withstand prolonged loads, smooth out shocks and jerks. They are compact, take up little space, but simultaneously drive several important vehicle components: the air conditioning compressor and the pump.

The rotor of the generator must constantly rotate. This is facilitated just by the belt connection to the crankshaft. Pulleys, which are screwed onto the shafts of the generator and crankshaft, are connected by a belt, always flexible.

The "whistle" of a belt is similar to a disgusting clang. It is caused by the fact that the belt slips. The sound from such a whistle is unpleasant and can be heard at a great distance. Of course, you should not ride in such a situation.

Belt whistle and its causes

Some motorists refer to the fact that supposedly the belt got poor quality and carry out a replacement, but everything starts over again. For this reason, in order not to waste precious time and extra money, it is recommended to inspect the entire belt drive. Analyzing the conditions under which a whistle occurs is the most useful judgment a car owner can make.

Verification boils down to the following steps:

• the integrity of the belt is checked (we agree with the version that today even new products may be of poor quality);
• the degree of tension is checked (as you know, belt creaks often occur due to weak tension);
• the cleanliness of the shaft is checked (another reason for the "whistle", which is described in detail below);
• checking the line of two pulleys for displacement.

Five main reasons why the generator whistles

Below is a list of the most common causes of alternator belt whistling:

1. The cleanliness of car parts is an important rule that the vehicle owner must follow. Oilwhich accidentally hit the belt or shaft, causes an unpleasant squeak. This happens due to the fact that the belt loses its former adhesion to the shaft surface and slips.

   If you remove the belt and then thoroughly remove all traces of oil with a cloth soaked in gasoline, then the problem can be solved.

2. The belt may simply sag and weak tension will cause "whistle". The solution is quite obvious - you will need to look under the hood, check how the belt is tightened, and if it is weak, then tighten it.
3. The whistle can begin due to wrong pulley line... As you know, two pulleys should be strictly in one line and a slight slope leads to an unpleasant sound.

   It is necessary to check the offset and set the pulleys as needed.

4. Too tight belt can also lead to "whistling". Car owners probably know that a very stiff belt prevents the pulleys from spinning normally. This situation is especially often observed during the cold season and the whistling stops as soon as the engine warms up and the belt regains its shape;
5. Failed bearing may cause the attachment belt to whistle. We change the bearing for a new one and that's all.

The provisions listed above are the main ones. But this does not mean that there can be no other reasons. The most important thing is to respond to the problem in a timely manner and take urgent measures to eliminate them, then you will forget how the alternator belt whistles.

Many car owners are concerned about why the alternator belt whistles. An unpleasant situation when the belt of the generating device makes a grinding and whistling sound, it gets on your nerves, and does not give you the opportunity to concentrate on the road. However, the whistle is not always caused by the belt. Let's find out why the generator is whistling?

Belt and its versatile functions

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Belt transmission is the best way to transmit torque to the rotor of a generating device invented today. This method has been successfully used for many years, differing from other methods in its simplicity. To implement the belt drive, complex and numerous components are not needed - just two pulleys with shafts, connected by an elastic belt.

Here the belt itself becomes a universal part, because many functions are assigned to it. First of all, the main task is to ensure the rotation of the pulleys.

Note. It is important that the belt is not just elastic and moderately stiff. One part of the element is specially tensioned more strongly in order to ensure the difference in tension, and, accordingly, to solve the problem of the tractive effort and its efficiency.

The belt gives transmission to the generator rotor, which must constantly rotate during the operation of the car engine. In this case, the belt provides not only this, but also the clarity of the transmission, smoothing out the jolts and jerks that inevitably come from the crank shaft.

The belt provides quiet rotation, and high-quality products are capable of being moderately stiff and durable at the same time, thereby withstanding prolonged loads.

Another advantage of the belt is its compactness. It takes up little space while at the same time performing tasks on a scale not comparable to its size. The generating device, water pump, air conditioning compressor, power steering pump - all this works thanks to the rotation of the belt.

Not surprisingly, after such loads, the belt does not hold up. The disgusting "clang" emitted by the problem belt is the very whistle we are writing about. The reason is belt slippage. Sometimes this whistle is so strong that it is heard at a very great distance.

Other causes of whistling

Why does the belt slip? If the load is to blame, then after replacement everything should return to normal. However, the noise continues with the new belt. Some kind of opportunity. No need to panic. It is better to initially find the cause of all this.

Experts advise doing the following:

• visually inspect the belt, checking it for integrity (even new products today come across defective and low-quality);
• check the shaft and pulleys for cleanliness (oil and other dirt can easily cause whistling);
• diagnose the degree of tension (weak tension also causes noise);
• check the alignment of the pulleys (if two pulleys are not located in the same plane relative to each other, the belt will not rotate smoothly, thereby touching certain parts with its edges and whistling).

Despite the fact that the belt performs many tasks, the designers did not disregard the moment of loading. Part of it, of course, is taken by the pulleys. And in them, according to many experts, one should look for the reasons for the whistle. Moreover, if a new belt, checked for quality according to all the rules, makes an unpleasant sound.

The first thing that brings the pulleys out of their normal state, so to speak, is the liquid that gets on the surface. Oil, coolant, gasoline can get on the pulley itself or the belt. This causes slippage and loud whistles.

If everything has been checked carefully, and the reason for the whistle has not been found, the generator itself is questioned. It also happens that the whistle is emitted by bearings with severe wear. In such cases, the generating device is disassembled, the bearings are replaced with new ones.

Varieties of whistle

It is customary to distinguish whistling by the nature of its occurrence. For example, a whistle can appear only "cold", then disappear. Therefore, it is equally important to know how the alternator belt whistles.

Cold whistling is a common headache for Russian car owners. There are several reasons.

• Wrong generator bearing grease selected. Because of this, in cold weather, the composition is compacted, the pulley cannot easily rotate the rotor. Everything goes away as soon as the engine heats up and the lubricant is “thawed”. The solution to this problem is trivial - to replace the anti-adhesive with a composition that is more tested for cold weather.
• Weak belt tension. The engine, which is simply not capable of starting to work dynamically when cold, takes time to warm up. During this interval, a weakly tensioned belt lacks the strength to "accelerate" on the pulleys. It slips and whistles, but only until the motor turns quickly and evenly.
• The pulley itself is jammed. The same happens only "cold" until the car parts are warmed up properly. You can check if the pulley is the cause of the whistle yourself. It is necessary to turn the generator pulley by hand, having thrown off the belt before this. If the pulley rotates tightly or it is impossible to turn it at all, serious repairs and even replacement are needed.

Another variant of whistling is noise that occurs only when the engine is loaded. This kind of whistle is mostly caused by a weak belt tension.

Belt whistle: reasons

During the operation of the vehicle, the motorist encounters various troubles. So, over time, the steering wheel starts to play, the suspension knocks. Sometimes whistles Why is this happening? Such a problem can find a motorist at the most inopportune moment. Well, let's look at why the alternator belt whistles on the Kia Rio (sedan) and other cars.

Belt characteristic

First, let's look at what this element is responsible for. As you know, it is often used in a car. Thanks to it, the correct gas distribution (when it comes to the timing unit), the operation of the hydraulic booster, air conditioner and generator are carried out.

Maintaining optimal voltage in the on-board network is a guarantee of the health of any car. This is why it is so important to keep the generator in good working order. The part itself is reliable. However, the alternator belt may whistle. Why is this happening? The fact is that the element loses its grip on the crankshaft pulley. And this may already be happening for various reasons. For which ones, we will consider below.

Natural wear and tear

As you know, this element is subject to heavy loads. Therefore, it must be strong and elastic at the same time. A generator belt is made of rubber with a reinforcing filler. The service life of this product is 60 thousand kilometers. Of course, the resource directly depends on the generator load. But if there was a whistle from the engine compartment, it is worth remembering how long you have not changed this element. Remember that the belt loses its quality over time.

By the way, judging by the reviews, the most durable and hardy is This element has the shape of a trapezoid on the cut. This allows it to withstand heavy loads. However, the mechanism is not designed to bend backward. Therefore, it is not used on all cars.

Cleanliness of parts

Few people know that the engine compartment also needs to be washed periodically. And this is not done for aesthetic pleasure. The fact is that when heavily contaminated, the belt drive loses its adhesion to the pulley. A characteristic whistle begins. In addition, dust particles work like an abrasive inside. As a result, the question is brewing: "Why is the new alternator belt whistling?" But dust is not the only contributor to this problem.

If the engine gasket leaks oil, it may spray onto the crankshaft pulley. As a result, the belt loses its firm grip on the shaft. Clanking and whistling begins. Therefore, it is so important to keep the engine compartment clean. By the way, after washing, you can find traces of oil leakage. This will allow you to diagnose the breakdown of the gasket or gland in time and eliminate the problem.

Bearing

This element can also cause whistling. What causes this mechanism to fail? As with all bearings, grease can be washed out here, which compromises the integrity of the cage. Moreover, it is impossible to determine the cause externally.

The bearing will be as good as new. But as soon as it starts working (that is, it starts rotating), you will hear a characteristic noise. This element is non-separable and cannot be repaired. In case of failure, only replacement will help.

Tension

This is perhaps one of the most common reasons why the alternator belt whistles on the VAZ-2110 and other domestically produced cars. Owners of foreign cars are not insured against this problem either. Whistling can occur for two reasons. This is a very weak or too tight belt tension. Moreover, the problem may disappear and appear again. So, with a strongly tightened belt, the whistle will occur only in the cold season. As soon as the engine warms up, the belt takes shape again and the sound stops. But this does not mean that you can continue driving with such a problem. This significantly reduces the belt and bearing life.

Correct pulley line

This is another reason why the alternator belt whistles. This problem also happens on the Priora. So, when whistling, it is worth checking the alignment of the upper and lower pulley. They must be at the same level. Even with a slight slope, the contact patch decreases several times. The mechanism will emit a characteristic squeak.

How to tighten?

It is quite easy to check the tension level without tools. So, if you press your finger on the middle of the belt, it should bend by 6-8 millimeters. If the element is tight or too tight, the situation needs to be corrected. Let's consider how to do this using the example of front-wheel drive VAZ cars.

So, we need spanners "17" and "19" (or better - with a ratchet and head). The setup process takes no more than ten minutes. So let's get to work. First you need to unscrew the fastening nut that secures the generator and bracket from above. Next, unscrew the same nut at the bottom. It is enough to loosen it a few turns. If you need to tighten the element, grab the generator and pull the belt away from you. Next, tighten the appropriate nuts and check the tension level. If the belt is too tight and needs to be loosened, we perform a similar operation. However, here we need to pull on the generator. So, we tighten all the bolts and proceed to check. If the tension is at the level of six to eight millimeters, we start the engine and turn on all the main consumers of electricity. These are optics, air conditioner, stove and so on. The music should not be turned on, since we need to listen to the whistle of the belt. If there is no noise, the work is considered successful.

Conclusion

So, we figured out why the alternator belt whistles. As you can see, this can happen for various reasons. But first of all, you should check the tension level. In 80 percent of cases, the alternator belt whistles because of this. Also remember that overtightening the mechanism can lead to increased wear on the bearings and the pulley itself. Stick to the golden mean, namely a parameter of 6-8 millimeters with a deflection in the middle section. And you can adjust the tension level yourself, using two keys. Therefore, if the alternator belt whistled, it is not necessary to go to a service station looking for a problem. Perhaps the reason lies in its elementary incorrect tension.

The operation of both domestic and foreign cars is sometimes accompanied by an unpleasant whistling sound. The alternator drive belt whistles. This phenomenon occurs more often in cold or rainy weather, with an unheated engine.

It is possible to operate such a vehicle, however, the whistle means that the drive slips on the pulleys without rotating the generator shaft. Accordingly, the battery does not receive the required charge.

The problem can be caused by other, more serious reasons. Why is the alternator belt whistling? What is the risk of a malfunction and what needs to be done to fix it?

Whistling reasons

The reason for the whistle can be hidden both in the belt itself and in the units located nearby. When the car owner contacts for help, it often turns out that the generator is whistling.

Belt faults

There may be several reasons that the VAZ-2110 generator belt whistles. However, the first place in frequency of occurrence is taken by the wear of the material from which it is made. Rubber stretches, loses its shape, starts to slip.

Diagnostics is carried out visually, according to the degree of belt tension. If it sags, easily scrolls by hand (while the pulleys remain stationary), then the cause of the malfunction can be considered found.

In addition to the above, the belt drive whistles when the pulleys are oiled. This usually happens on older engines where oil seeps through oil seals and gaskets. The generator drive on the Prior and other VAZ models is not gear. Therefore, it slips easily on oily surfaces. Diagnostics is carried out visually.

The drive may not whistle constantly, but occasionally whistle for a while after a cold start in winter. In general, if the situation returns to normal after warming up, no intervention is required. The fact is that the rubber from which the element is made becomes rigid in the cold and does not fit tightly to the surfaces of the pulleys. As it warms up, it takes on a working shape and the whistle stops.

Generator malfunctions

The problem of the whistle of the VAZ-2107-VAZ-2101 generator and the entire front-wheel drive line of cars usually consists in a collapsed front cover bearing. At the same time, both the bearing itself and the belt slipping along the jammed pulley can make noise. The malfunction is determined "by eye".

In some cases, alternator drive slippage may be caused by a skewed alternator or crankshaft pulley. The belt starts to move at an angle, touching the side surfaces. Even a new alternator belt will whistle. You can determine the breakdown by the strong wear of the belt drive. The drive eats up on the sides.

Possible repair

What to do in the situation under consideration? The solution depends on the detected problem. A loose drive should be tightened. Kalina cars and other front-wheel drive VAZ models have a tension bolt that allows you to adjust the degree of belt tension.

To carry out the manipulation, the fastening bolts should be loosened, and then the adjustment bolt should be tightened a few turns, achieving the optimal tension. A correctly tensioned drive should not bend by more than 1 cm under hand pressure. If this cannot be achieved even with the maximum tightening of the bolt, the belt should be replaced.

If the pulleys are oiled, remove the drive and wipe the inside with alcohol or gasoline. The 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, the current oil seals and gaskets must be changed.

In cases where the alternator belt whistles "cold", repair is not required. It is permissible to slightly increase the belt tension. However, if the whistle disappears after warming up, this is optional.

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

Prevention

It is possible to prevent slipping of the generator drive by timely checking and correcting the level of its tension, replacing the belt in the presence of damage and with severe wear.

It is important to monitor the condition of the engine oil seals and the cleanliness of the engine compartment. At the first sign of wear on the generator bearing, it must be replaced.