When changing the drive belts. Everything you need to know the motorist about the replacement of the belt and the timing chain how to put an additional belt on the engine

Problems with the timing belt usually arise without warning. No creak notifies that the replacement time has come. If your car traveled normally, and then suddenly the engine stalls with a deaf sound and will not start, most likely, the case in the timing belt. Engine synchronization should be perfect, otherwise valves and pistons may face, which will turn into expensive engine repair. To find out how to remove and replacing the timing belt, start from step 1.

Steps

Part 1

Before removing the old belt, you need to buy a new one. If you decide to perform maintenance, then you need to decide on the new belt before removing the old one. If the belt is damaged or slipped, then you should remove the old belt before buying a new one to compare them and purchase a suitable timing belt for your car.

• Most vehicles use rubber timing belts, whereas before there were steel chains of the gas distribution mechanism. They cost a few dollars and are available in any parts of the spare parts. Depending on the engine, the replacement of belts should be performed every 145,000 - 190,000 mileage kilometers.

1. Required information about your car. You will need the name of the brand, model and year of release of the model vehicle, as well as the type and size of the engine. For some models, various modifications are possible even within one model year, so vIN number (Vehicle identification number) can also be useful. The new belt can be purchased from the regional dealer or in the spare parts store.

   Also do not forget to buy gaskets and special glue necessary for re-assembly. Your spare parts supplier must report everything you need. Belt sets are also available, including spare gaskets and other materials necessary when replacing the belt.

   Remove the accessories that include the enhanced steering pump, the generator and the air conditioner compressor to access the timing belt cover. Do not remove fittings under pressure from the air conditioning compressor, practical all of them can be unscrewed and move aside without blending system pressure.

   Remove the distributor cover (if installed). To remove the cover, you may need to open the locks and unscrew the fastening screws.

   • Some modern cars with electronic system Ignitions are not equipped with a distributor. Instead, the crankshaft position sensor is installed distribution Vala.. It is very important to determine the upper dead point (NTT) on the first cylinder. Use the engine repair manual, because NTT differ depending on the model.

2. Alignment of installation labels. Using a spanner or end key for crankshaft bolts, turn the engine until the setting label of the crankshaft will not match 0 ° on the synchronization scale.

   • Check that the distributor rotor coincides with the pointer on the distributor housing, reporting the readiness of the rotor to the ignition of the number one cylinder. If not, do another complete motor turn.
   • Do not do this with an interference engine if you are not sure about the integrity of the belt. If you have not lost the valves with a torn engine engine, you will definitely make it, turning crankshaft With a fixed camshaft.

3. Set the need to remove the vibration pullee pulley to remove the timing belt cover. Often, the cover overlaps the end of the crankshaft, and the pulley does not allow to remove the lid. Note, in case of shaft removal when back assembly Additional seal will be required.

   Unscrew the bolts or screws that hold the timing belt cover. Remove the cover from the engine. On some engines, the lid consists of two elements. Remove all components or drive belts auxiliary aggregatesMinding the removal of the timing belt cover. Such components and belts depend on the model of the vehicle, so we recommend using the maintenance manual.

   Check the accuracy of the combination of the installation labels of the crankshaft and the camshaft. Many engines have a dotted line on pulleys and / or asterisks, which must be aligned according to the corresponding marks on the block, cylinder head or auxiliary shaft. On some engines, the dotted line of the camshaft sprocket is aligned along the first pair connector line Bearing-camshaft.

   • This is very important when replacing a torn timber belt. Consider the correct adjustment process in the service manual for your vehicle and eliminate all the shortcomings before performing the installation of a new timing belt. On some engines, such tags can also be indicated on the sticker of the timing belt cover.

4. Inspect the zone around the belt for the presence of oil leakage traces. Inspect the areas near the distribution and crankshaft seals, as well as the valve lid and the crankcase pallet. Check the cooling fluid leaks from the water pump and the bypass hose. All available leaks must be eliminated before installing a new belt.

Part 3.

Part 4.

• The timing belts belong to the wear details. Usually in quality planned service They need to be changed every 96,000 mileage kilometers. They can break out that it will cause expensive damage to the interference engines due to the collision of the valves and the pistons due to the movement of the rotation. Timely replacement belt is the best way Avoid costly repairs.
• The timing belt is designed to synchronize the operation of the valves and pistons. The process is similar to synchronization in aviation machine guns of the time of the First World War, when the lack of consistency in the work will lead to the tool the aircraft screw.
• The newcomer is recommended to purchase an expensive factory manual from the manufacturer for a specific model of vehicle and the engine in which the belt will change. Such guides are written for professionals for mechanics, suggests a certain extent of competence, contain very detailed information with the values \u200b\u200bfor the belt tensioner, the torque of the bolts, the location of the locksters, etc.
• For some vehicles, a special tool may be required to get to the tensioning bolts of the tensioner, which are hidden by the engine mounting bolts, or to attenuate the spring-loaded tensioner of the timing belt. Most engines use spring-loaded tensioning device, to work with conventional end and wrench, but for some internal hex key is needed.
• Always follow the instructions for your brand and car model, especially if you are unfamiliar with the mechanism device. Despite its cost, the factory guide with interest will pay off at the first repair.

Basic problem with wear drive belts At the initial stage, various screens and suits become, during the rotation of the pulleys transmitting to hinged equipment Engine. In the event of creak and whistles in a short time, one of the drive belts may break. We offer you detailed information about these types of belts in modern cars. Our directory will help you to know when it is necessary to change the drive belts, how to determine the degree of their wear, how does the drive belt differ and what average cost Drive belts on Russian market, as well as get answers and other issues related to these belts.

First, let's put all the points over "I", finding out what drive belts are.

Drive belt car - This is an element of belt transmission, a working part of vehicles and mechanisms that serves to transmit torque engine.

The transmission of torque occurs due to the friction forces or the forces of the engagement (gear straps, wedge-shaped belts).

There is an erroneous opinion that it does not apply to drive belts. But actually it is not. The timing belt also refers to the category of driving belts.

Drive belts are divided into several types:

Timing belt (belt drive gas distribution mechanism)

Drive belts of auxiliary components (engine attached equipment)

There are three types of automotive belts:

Thanks to the rotation of the generator, electricity is produced, which supports the work of the entire electrical equipment of the car.

Also in many modern cars, the same belt type is used to transmit torque on the electric power steering amplifier, the cooling fan, on water Pompe (coolant pump), on the air conditioner compressor and on the classic steering wheel hydraulic. Since the belt is subjected to colossal load and constant temperature drops, it is usually made of a rigid rubber and a metal core, which ensures the strength and durability of the belt. Also, many belts have a durable textile thread allowing a high torque to withstand a belt.

So each car besides the timing belt (in some cars, the gas distribution mechanism circuit is also used) has one or several belt drives (depending on technical features Car), ensuring the performance of engine attachments.

If the drive belt has cracks (consequences)

If your car (or belts) wear out, they will have on the surface of the crack and scuff. As a result, a whistle will begin to appear during their movement. In this case, the time of their planned replacement has come. Remember that if you do not change the drive belt during, then you risk staying without workable car equipment. For example, if the life of the belt has expired due to serious wear, it is sooner or later will naturally break.

As a rule, when breaking the drive belt, you will hear a loud cotton from under the hood. As a result, the equipment that received a torque from it will cease to function. For example, if the drive belt is broken, the supply generator will stop, then it will stop and feed all the electric equipment of the car. In the end you will see on dashboard Flashing icon rechargeable battery.

Also from the belt cliff will stop the hydraulicel. As a result, yours steering wheel It will rotate very hard. But the main problem when the drive belt break is the absence of rotation of the water pump, which contributes to the circulation of the coolant on the engine cooling system. As a result, the engine can quickly overheat. In this case, you must immediately stop moving and turn off the engine.

Therefore, while driving, constantly monitor the engine temperature sensor, which should show the same temperature of 90 degrees. If you see that the temperature arrow went up and approaches the dangerous red zone, then it is necessary to stop and, turning off the engine to diagnose the cooling system.

Attention! Engine overheating can lead to its failure (damage masonry Caps, failure of block head laying, damage piston system). Therefore, do not allow in any case controlling the engine temperature on the dashboard.

What does the service life of the drive belts depend on?

Modern drive belts have enough due to their design from modern reliable materials. On average, the quality belt can serve up to 25,000 hours of operation. Please note that the service life is specified in the clock, and not in kilometers, since the kilometer does not directly affect the service life of the drive belts. After all, these belts are in motion even when the car stands still, and the engine is working at idle.

But this is in theory, and according to information provided by manufacturers of belts for consumers.

In practice, the service life of the drive belt may differ significantly from the manufacturer's declared. The fact is that many factors affect the wear of the drive belts. For example, an important role in the long service belt serves as it was installed on the car. For example, not uncommon when trying to plant a strap on the pulley with a screwdriver. Eventually new belt It is damaged and no longer be able to serve the term that the manufacturer declares. Such a method for installing the drive belt is also used to speed up the replacement process so as not to remove the pulley.

In addition, for the service life of the belts affects the storage conditions of components in the warehouse and their transportation. For example, it is not uncommon when in the auto shops sell drive belts with an expired shelf life. Yes Drive belts have. The fact is that the chemical composition of the materials of the drive belts changes over time. And if the drive belt was produced 5 years ago and was incorrectly stored in the warehouse, then when it was installed, it will not last for a car.

Also on the durability of belts in the car can influence the weather. For example, if you live in a hot climate, then you often use air conditioning. This means that the air conditioner compressor should receive. As a result, the belt transmitting the torque on the air conditioner compressor is experiencing an increased load.

Including driving belts can quickly wear out if the car is operated in cold weather for a long time. For example, in winter time Electrical equipment of the machine is required greater than in warm weather.

As a result, the generator requires more energy to maintain the operability of the power grid in the vehicle. As a result, the generator belt is experiencing an increased load due to an increase in torque.

As a rule, in a new car, drive belts serve longer, since they were installed at the factory and everything was fulfilled the necessary conditions storage. After replacing the factory drive belts, the life of the belts is reduced.

Each automaker B. technical documentation and service book Usually indicates regulatory work when it is necessary to replace the drive belts. Therefore, we advise you to carefully read the list of planned technical inspections and regulations for replacing consumables. As a rule, the manufacturer indicates a limiting kilometer, in which the drive belts should be replaced in the Master Technical Center. Thus, you approximately learn the deadlines for drive belts. But this does not mean that you should not regularly inspect the state of the belts. About this below.

Regular verification of drive belts

Periodically, each car owner must check the condition of all drive belts and their stretch. To do this, it is necessary to check the belts with your finger at the engine turned off. For example, by pressing your finger on the belt, you can understand whether the belt drive is weakened. Remember that the belt at the same time does not have to move (shift for 1-2 cm). If you see a similar one, then the blame is a weak belt stretch. You should also touch the belt to damage. Also necessary I. visual inspection On the subject of chips, cracks and ribbon elements.

In addition, use a pocket flashlight that will make an overview not only better, but can help reveal the lighted belt areas (as a rule, the belt portion will be blushing).

In any case, if you see damaged strap areas, then it must be replaced in any case to a new one. Please note that purchasing new drive belts you do not need to acquire original consumables. There are many non-original belts on the market, which in quality often even exceed the factory originals. For example, Continental has proven perfectly well, which is the largest supplier of drive belts.

The average cost of replacing the belt in the auto repair shop is about 2500 rubles. The belts for the car depends on the fame of the brand and the cost of products. The market is present, both cheap drive belts and expensive, which have a special design and are able to withstand extreme loads.

How to pull, tighten or loosen the drive belt

If the cause of the whistle, squeal or the screens is the belt, which is weakened, as a result of which he slipped on the pulleys, if the belt does not have or damage, in order to remove the outside sound, you must tighten the belt.

On the example of the belt, the generators are done using an adjusting special bolt (on modern cars) or using an adjusting plank (on older machines).

For example, to pull the generator belt on a modern car you need to do the following:

- Loosen a little fastening bolts of the generator (upper and lower fastening)

- Turn the adjusting bolt towards the time of the clockwise, the removal of the generator from the engine block and immediately checking the belt tape level

- Then staring the nuts of the fasteners of the generator

Please note that in some car systems, the process of pulling belts, too time-consuming and requires the use of a special tool.

Attention . In the market and in many cars at the moment, the spread of a new generation of polyclinic elastic belts was obtained. For example, one of the well-known global manufacturers like belts is ELAST. Their products have proven themselves in the best way. This company is the official supplier of many auto plants. Elastic polyclinic belts do not require stretching and pulling, etc. Thanks to their design and material, such belts are not stretched. As a rule, such drive belts serve about 120,000 mileage kilometers.

But for its initial stretch, a special tool is required.

In many cars, special belt tension rollers are also used, which eliminates drivers from constant tightening belts. The only drawback of such a design is, as a rule, when replacing the drive belts, it is also necessary to change the tensioning roller, since it is not possible to reuse with the new belt.

Replacing drive belts in the technical center

How can I replace temporarily drive belts in the event of a vehicle breakdown on the track?

Unfortunately, to temporarily replace the drive belts in case of climbing on the track, in modern cars it is impossible. In old cars, with such a problem, women's tights sometimes helped. But these times went away. When cutting the drive belts you will need technical assistance.

What is this service?

The drive belt connects the generator, the steering hydroeviller pump and the air conditioner compressor with the crankshaft pulley of the engine, the belt transmits power from the engine to these nodes. In the absence of this belt, the battery will not be charged, and none of the electrical components of the car will work. because of high temperatures Engine, with time the belt can crack and break. When breaking the belt, the steering wheel will be difficult to rotate, and the control of the car will become dangerous. In some cars, the cooling system pump is driven by a drive belt. When the belt is destruction, the cooling fluid circulation required to maintain the proper engine temperature is disturbed. The engine will overheat, which can lead to its serious damage.

Drive belts are an important part. power plant, and how any part of it is susceptible to wear. To avoid problems when working a car, replacing the drive belt Must be committed immediately after detecting suspicion of malfunction. Otherwise, it is possible to fail by many aggregates up to their breakdown, and as a result, expensive repair.

Drive belt functions

Depending on the car model, several drive belts can be used in it. Their main task is to move a large number of aggregates, among which the generator, compressor and steering pump are the most important.

Usually the driving belt malfunction does not lead to an immediate stop of the machine, most likely you will be able to get to the house or a hundred. In this case, it is impossible to postpone the repair, because in this case the generator will not work, and the cooling system will not be able to remove heat from the engine.

How to replace the drive belt?

If you have the necessary skills, you can perform such a procedure yourself. To do this, you need to read the documentation for the car, buy the necessary equipment and make a replacement. Naturally, this requires certain skills, without which it is better to trust this business professional.

Relief belt replacement price More than affordable, so it is easier to cause mechanics and make more useful things. If you do not know when this procedure was last made, then before, inspect it visually for the presence of defects, it may be at all and is not required. Specified in the operating instructions for the vehicle - you should not imply this service.

Keep in mind

The car can be equipped with flat or wedge drive belts. Flat belts may be one or two. Most modern cars There are only one belt, which brings all the engine attachments. If the car is equipped with wedge belts, they are usually four pieces.

The mechanic must check the condition of the drive belt when replacing motor oil. If you hear a squeezing sound from motor compartmentMost likely requires adjustment or replacement of drive belts.

How important is it

The break belt can damage the important parts of the car and expensive repair. Therefore, as soon as you notice the deformations, breaks, cracks or other belt defects - it should be replaced immediately.

The main reasons why it happens

• Whistle under the hood from drive belts
• Power steering does not work (torn strap)
• Battery malfunction indicator
• The engine gets very hot

List of basic works:

• Check the belts for cracks.
• Remove and replace damaged belts.
• Examine rollers and bearings.

In most cases, a foreign whistle or creak under the hood indicates that it's time to change. Moreover, the earlier this is done, the less likely the probability of ultrafast wear of other functional elements with which it is connected. Let's try to see how to change this item outside the workshop. Although it is worth noting that car service in the appropriate places - has more guarantees for long-term operation of the machine than with independent and not always qualified actions.

Order of work

So, before installing a new belt, you need to check the status of the roller, and it is possible and it requires replacement. Next, follow these tasks:

1. Delete expansion tank. To do this, you must slightly pull it up.
2. At the tensioner bolt throw a special key.
3. After removing the fixtures, dismantle the belt (throwing off the roller).
4. Check clutches and rollers for extraneous noise and backlash. This requires mechanically to move them.
5. Put the belt (wear it takes from bottom to top, keeping in tension).
6. Align the belt.

However, it is not always necessary to need to replace the drive belt. Sometimes in the generator it is enough to pull it out. This procedure is simpler and consists of the following actions:

• weaken slightly fasteners;
• rotate the adjustment bolt clockwise towards the stroke, remove the generator from the engine block;
• depending on the tension level, tighten the nuts fasteners.

Attention! The process of stretching can be individual depending on the brand and modification of the car. In some cases, even for such a procedure, qualified assistance will be required.

The life of most belts is more than 100 thousand mileage kilometers. However, much depends on the intensity of the car use.

Speaking about the professional replacement of details in the service or technical center, it should be noted that the procedure takes no more than a few hours.

Features of the belt replacement also depend on its type. Several species can be used in the assemblies assemblies:

1. Gear. It is based on the polymer composite. The device has many teeth who gave the name of the belt.
2. Wedge. This type It has one large wedge on the entire belt surface.
3. Polyclinic. Consists of a variety of wedges.

Each of them is used in various engine systems and, accordingly, will have different replacement features. If you have questions about how to change or select a drive belt, you can always contact RTI-Primexport in Barnaul, receiving professional advice.

For supply electrical systems Energy in every car there are two power sources - battery direct current and a three-phase alternator, equipped with a powerful rectifying bridge. But that the latter began to give out the current, it needs to be forced to spin. It is done with the engineered motor using a crankshaft and belt. Often the latter requires replacement.

Belt Transmission: Advantages and Disadvantages

The generator belt drive relates to transmissions called flexible bond. The drive includes two pulleys - the master is attached at the end of the crankshaft, the driven is attached to the generator shaft, as well as the belt pinned on them. The transmission of the torque is carried out at the expense of friction forces.

Types of generator belts

As various brands Cars have different types of engines, then the generator belts are used in them three types:

• wedge (in cross section they have the form of a trapezium, are able to transmit significant efforts, withstand large overloads);
• polyclinic (wide, with longitudinal furrows, have reverse flexibility and are used to transmit rotation to multiple devices);
• togberry (on inner side They have transverse grooves and are endowed with the ability to accurately observe the gear ratio).

Separate belt drive of a powerful 3-phase generator of modern a passenger car - This is a polyclinic belt consisting of a variety of longitudinal wedge-shaped teeth located on the inside of a flat infinite base. The main condition for the sustainable operation of the generator belt is the mandatory presence of a tensioner. As it serves a tension roller or a generator itself.

Polyclinic belting It has both advantages and disadvantages.

Dignity

• little weight and small thickness allow you to use a belt in the drives of engines with a high number of revolutions;
• increased reverse flexibility allows you to simultaneously transmit rotation to the hydraulicer, the water pump, the generator, the air conditioner compressor;
• has increased resistance to the formation of cracks;
• protects the generator from shock and peak loads during starting and stopping the engine;
• protects an overload generator, due to the strap sinking in pulleys;
• steady transmission of torque at a considerable distance between the crankshaft pulleys and the generator;
• simplicity of design;
• smooth and silent work;
• no type of lubricant is required;
• a small cost in combination with a long service life.

disadvantages

• the ends of the shafts with pulleys and support bearings are under the influence of decent forces arising from strong tension;
• if large loads occur, there is a strong wear of the side surfaces due to slippage;
• service life depends on the correct tension;
• the mechanism cannot work normally when oil comes on it, so protection against any type of lubrication is required.

The design and material of the generator belt

Wedge belt consists of 5 layers

The product must have the following characteristics:

• great strength with significant load fluctuations;
• good wear resistance;
• the maximum clutch coefficient with the working surfaces of the pulleys;
• be flexible but rigid.

The polyclinic belt consists of the following layers

The generator drive is made in the form of an infinite flat belt, on the inner surface of which there are longitudinal ribs of a wedge-shaped form. This design allows you to combine the elasticity of the flat and increased clutch power of a wedge belt. The base is a cord reinforced layer of cords from synthetic coated with a rubberized cloth from high-strength rubber. This design is practically not exposed to stretching.

When to change the generator belt

Modern technologies make it possible to produce the generator belt as strong that it is capable of working to work for a long time - several tens of thousands of run. Many manufacturers set the standard for mandatory replacement of the generator belt at 80-100 thousand kilometers. But control over the state of this important element of the generator drive must be. Ordinary practice: visual inspection for the detection of cracks and grinding the edges when the sustainable whistle appears. Damage and misalignment on pulleys, as well as improper tension, lead to premature damage. Two control lights are spawned on the break. The first is the lack of charging the battery. The second is a sharp increase in the temperature of the coolant (for example, a water pump and a generator operate on the classics from one consumor).

What to do if he broke

Porn the generator belt

If the belt breaks on the road, and there is no spare room - the situation will be quite serious. Especially difficult at night. You can only move on a tug with a plugged engine, which is very dangerous. If the day, then a short distance can be driving on the battery, turning off all unnecessary sources of current consumption: light, tape recorder, stove, navigator and other devices. In a hopeless situation, you can try to use sweater tools:

• cutting up along in half, fold half with each other and make a circle of the desired length, wind up both halves with strong beep;
• belt belt, whose ends copp wire;
• women's tights, ends to tie a tougy knot;
• durable rope, the ends wound a strong beep;
• harness from the car chamber, the ends are wrapped with twine or wire.

How to choose the right

If the belt began to collapse from long-term operation or strong wear - it must be changed immediately. The main criterion is the length that you can learn from the catalog, knowing catalogue number Details of this brand of car and its complete set. For example, the length for the VAZ 2110-2112 brand has different models:

• for 8 and 16 valve engines, including priors, with minimal package - the length is 742 mm;
• for 16. valve Engine with a hydraulic cell - 1115 mm;
• for models equipped with air conditioning - 1125 mm.

Marking is applied by outside belt

You can learn about the length from the marking, which is applied to the outer surface. It is recommended to buy original product That manufacturer, whose products are equipped with a car on the assembly conveyor.

Manufacturers of polyclinic generator belts

Polyclinic belt generator gates

American Gates. And its products are most famous among all manufacturers of polyclinic belts. Spare parts Gates are supplied to the assembly conveyors of passenger and trucks Italy, France, Germany, Sweden, Japan, Korea, USA and other countries. Her belts are high-quality, durable, but quite expensive. This brand most often fake unfair manufacturers of low-quality consumables.

German continenta.l is also well known for the quality of its products.

German bosch. It has an excellent reputation on many products in the world, including polyclinic belts.

American dAYCO company ranks 2nd place in the market and supplies its products for assembly conveyors automotive concerns Italy, France, Germany and other countries. Original products Dayco enjoys consumer confidence not only among motorists of European countries, but also in the USA, Asia, Africa.

PJSC "Balakovorezinotechnics" - russian manufacturer Original rubber products for conveyors Vase, gas and Kamaz. Her products for generators willingly buy owners of Lada models, Volga, Gazelle and other domestic brands.

Replacing the generator belt do it yourself

An experienced driver always carries a spare parts of the desired size and type. Change it is easy if there is required tool and minimal locksmith skills.

Video: Replacing belt and roller on Renault Megan 2

Procedure (replacement is made on disabled Engine and removed the battery terminal) the following:

• provide access to the belt for which it may be necessary to remove front wheel, engine mudguard, and some brands - crankcase; injector Engine It is necessary to remove the crankshaft position sensor;
• weaken the belt tension, for which weaken the bolt (or nut) of the stretch roller or the generator itself;
• fix the belt location scheme in memory if it drives several devices at the same time;
• you need to remove the old belt from the upper pulley, then compare it with the new one - they must be identical (no discrepancy in the profile should not be);
• find out the cause of the belt damage and eliminate it;
• to put a new belt in place to start with the crankshaft pulley, then throw it on the generator and last on the water pump; Then you need to adjust the degree of tension (when pressed with a finger with a force of 10 kg, the provisis should not exceed 10 mm);
• put the battery terminal, start the engine and turn on the headlights, stove, air conditioning and other powerful current consumers (there should be no whistle, knocks, noise; headlights should shine exactly on any revolutions);
• put in place the details that were removed at the beginning.

Video: Check and replacement of engine aggregate

Signs of irregular replacement

If the belt is pulled, the load of the generator shaft agents will increase, and it will start to slow down the shaft. The force for rotation of the generator will increase, the load on the crankshaft will become greater, the fuel consumption will increase.

If it is not completely stretched - it will start slipping and the generator will turn with smaller turnover. With a large load, the spare part from slipping begins to whistle. Get rid of a whistle just - you just need to pull the belt.

If it rotates on the shifted or trapped pulleys, there is a vibration due to pulley beating. It can also cause faulty bearings in tensioner roller or generator. A low-quality cheap belt can vibrate when it starts sticking to the surface of the pulley. If the vibration is not eliminated, the consummer will break very quickly.

Video: Noise on cold and belt vibration

Independent replacement of the generator belt. The case is simple, sat even a novice car enthusiast. If you do everything in a timely manner, not in a hurry, neatly - harmful consequences for the car should not be.