Replacing the timing belt on VAZ 2108, 2109, 21099 cars

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.

How to check tension

Before checking the tension of the generator belt, it is necessary to take into account that the optimal value depends on many external factors, which include:

• car make and model;
• type of generator installed under the hood;
• type of belt used to transmit rotation.

What level of belt tension on the alternator should be in a car can be found in the instructions for the car brand. Also, manufacturers of generators and belts regulate the value, indicating it in the data sheet attached to the products. The parameter is influenced by the presence of additional connected equipment. Such components include generators, hydraulic and electric power steering. Not in all conditions it is possible to obtain accurate information about the electrical equipment installed in the car. In such situations, experienced drivers are guided by a universal rule, which applies to a large number of domestic and foreign cars.

Important! For many vehicles, tension testing is performed on the longest straight section of the belt between the pulleys. After applying a force equivalent to 10 kg, the belt deflection should be approximately 10 mm.

For example, in VAZ 2115 models, generators of different models can be installed depending on the year of manufacture of the car. There are brands 37.3701 or close analogues 9402.3701. In the first case, a deviation of 10-15 mm at 10 kg is acceptable, and in the second case, the interval is limited by manufacturers to 6-10 mm.

Tensioning the alternator belt in a Priora car - nuances of implementation

Any car enthusiast knows that there will definitely come a time when you need to tighten the Priora alternator belt. It is known that the belt drive of this car is quite durable, but during operation there is a slight stretching of the belt itself, as well as a decrease in the adhesion of its surface to the pulley and roller.

Literally as soon as you notice a whistling alternator belt on a Priora, you need to start tightening it at the same moment, especially since this is not difficult to do.

Before tensioning the Priora generator belt, you need to prepare an open-end or socket wrench for 19 and a special two-end tension wrench directly for the roller. This key is similar to the one used to change discs on an angle grinder.

Checking the condition of the belt

The inspection regulations for this unit require an inspection in a cold engine state. Remove the outer protective casing to allow visual contact with the surface of the gas distribution unit parts. Having gained access directly to the timing belt, rotating its drive, inspect both sides of the consumable in detail for the presence of any kind of defects (wear, broken teeth, protruding cord, rubber delamination, etc.). Tensioner rollers are subject to careful inspection; in the presence of mechanical damage and large play, they contribute to increased wear of the consumables. The presence of oil stains on the surface of a rubber technical part, which contribute to the destruction of its structure, is not allowed. If found, immediately remove from surface.

• https://m.etlib.ru/report/1812-zamena-grm-priora-16-klapanov
• https://autogrm.ru/vaz/grm-priora.html
• https://priorik.ru/lajfhak-reglament-zameny-remnya-grm-avtomobilya-priora-na-16-klapanov/

Checking the tension of the alternator belt on a Priora

Owners of a Priora car can know how to tension the alternator belt from numerous sources on the Internet and by reading the relevant literature. After all, any car enthusiast will learn how to properly tighten the alternator belt on a Priora from these sources, and not through the transfer of experience from other car enthusiasts. But some “tricks” associated with checking tension cannot be found even in the above sources. Let's take a closer look at them.

If you press on the belt at the longest interval directly between the pulleys, then its deflection should be within 8-12 mm, but this rule is only suitable for a very modest car configuration. After all, if the car is equipped with power steering or air conditioning, the belt then has a different trajectory, which helps reduce the area of ​​interaction between the belt and the pulleys.

To make up for the lack of contact, you will need to tighten the belt on the Priora a little more. If it is not possible to use the services of a specialist, then you can try adjusting the tension of the Priora generator belt “by ear”. If the tension is insufficient, the belt will definitely slip, making a wild “whistle”, and if the tension is too strong, the generator bearings will hum.

About the resource

Well, now we’ve come to the most interesting thing, namely the resource. You know, now I want to talk specifically about normal belts and tensioning equipment, about “PRIORS” will be a little lower.

Not all manufacturers strictly indicate how often to change the belt, but such information can still be found, even in the car’s operating books.

The average mileage recommended for replacement is 100,000 kilometers. On many foreign cars, this mileage can be much longer, about 150,000 kilometers.

Now the question may arise: what does it depend on? Guys, to be honest, the belt itself can run (as some manufacturers claim) about 200,000 km, but its service life is reduced due to tension and support rollers. They are often the culprits of the cliff!

The support roller is a kind of bearing on which the belt rests, often has a plastic housing.

The tension roller is almost the same plastic bearing, only it is located on a special mount that “tensions” the belt, that is, it keeps it in “tone” and prevents it from “sagging” and jumping onto a tooth.

Both videos must be of simply excellent quality, no, they simply must! With foreign cars this is almost always the case, these “support” and “tensioner” last a long time, and replacement is 100 - 150,000 km in advance.

As you may have guessed, not only the belt is changed, but also the tension and support rollers - THIS IS MANDATORY, REMEMBER THIS! As an indirect reason for a future replacement, there may be noise from the timing drive; when the rollers begin to “bend”, they begin to make noise.

Tensioning the timing belt on a Priora: user instructions

In addition to the alternator belt in a Priora car, another important component is the timing belt. For this reason, many car enthusiasts are wondering how to tighten the timing belt on a Priora? It is not difficult to carry out this procedure; it is enough to prepare a tool: a “5” hexagon, a “17” and “15” head.

Before tightening the Priora timing belt, you should:

— unscrew the two screws securing the cover;

— remove the bottom cover covering the timing drive;

— insert the tips of the pliers into the grooves of the outer race of the tension roller in order to remove the locking rings.

- tighten the belt by turning the tension roller directly with pliers, counterclockwise.

— these actions are performed until the cutout of the outer race is aligned with the rectangular protrusion of its inner sleeve;

— after the above steps, the roller mounting bolt is tightened with a wrench;

— we check that the marks on the camshafts and crankshaft are aligned, as well as the cutout matches the mark on the tension roller. If the marks do not match, you should repeat the operation to tension the timing belt.

Parts from the VAZ catalog

Let’s immediately look at the list of VAZ components and special tools:

• Tensioner roller for internal combustion engine 11183 – 2108-1006120, nut for it – 00001-0021647-21;
• Timing belt (11183) – 2108-1006040-10;
• Automatic tension roller – 21116-1006226;
• Timing belt (11186/21116) – 21116-1006040;
• Key for automatic roller – 67.7812.9573-01;
• Key for roller VAZ-11183 – 67.7834.9525.

The tension roller of the "2108" family has two slots on one side. These slots should look “up”, that is, away from the engine.

Tensioner roller for motor 11183

The slots were made for special tools. It is designated by the numbers “67.7834.9525” (see list). And for automatic rollers, the key is designated differently - “67.7812.9573”. What it looks like is shown below.

The automatic roller can also be adjusted

It remains to list how the mounting bolts, washers, etc. are designated:

• Three bolts for the VAZ-11183 cover – 00001-0009024-11, washers – 00001-0026406-01;
• Timing drive cover (11183) – 21080-1006146-10;
• Bolts for VAZ-21116 covers – 2108-1003286-00, spring washers – 00001-0011977-73;
• Top cover – 21116-1006226-00, bottom cover – 21116-1006218-00.

We hope no questions arise here.

ALTERNATOR BELT TENSION ROLLER FOR VEHICLES WITH STEERING OR AIR CONDITIONING

The Priora, equipped with various options, has an alternator belt more than a meter long. It passes through four reference points. Three of them are pulleys. The first is the engine drive pulley and the second is the generator and power steering pump or air conditioning compressor. The fourth point is the tension roller itself. This simple mechanism is made in the form of a regular rolling bearing, with an eccentric base. That is, when turning it around its axis, thanks to the hole for the bolt, located not in the center of the bearing, but offset to the edge, the protruding part can tighten or loosen the drive belt of all additional Priora mechanisms.

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TENSIONER FOR PRIORA AND KALINA NOT EQUIPPED WITH OPTIONS

On the Priora, which does not have power steering or air conditioning, the belt is much shorter. It works on only two points: the crankshaft pulley and the generator pulley. The latest samples are equipped with a tensioning system similar to the VAZ Kalina. That is, if on other VAZ cars the tension is done by moving the generator itself, then on the Priora, a plastic roller of the tension system presses on the drive from above. A special tensioning mechanism is installed to move the roller. It consists of several parts:

The entire system is clearly visible in the photo. To adjust the drive and replace the tensioner, the following keys are needed. Slip on 19, end and socket on 13 and any wrench on 8. First, loosen the bolt and nut holding the movable platform with the roller with a wrench on 13. Then release the lock nut securing the adjusting rod using a wrench on 19. Using a wrench or socket on 8, unscrew the adjusting rod cravings The generator remains motionless. When the belt is loose, unscrew the bolt with the bushing on which the desired part is attached. Now remove the roller and install a new one in its place.

Check the free rotation of the tensioner for the generator drive and, having tightened the rod to the normal state of the drive, securely fix all the fasteners.

Imported analogues

Various components are suitable for replacing belts “2108-1006040-10”:

• GATES – 5521 or 5521XS;
• BOSCH – 1 987 949 095;
• DAYCO – 94089;
• CONTITECH – CT527;
• Finwhale - 2108-1006040.

The timing belt “21116-1006040” can be replaced with another part:

• GATES – 5670XS;
• CONTITECH – CT1164;
• QUARTZ (Germany) – QZ-5670XS.

Usually the choice is made in favor of GATES products. The letters "XS" in its catalog mean "reinforced". Grantovods have already told us in detail about the timing of replacing the timing belt, its choice, and signs of wear in the material: when to change the timing belt on Grant: recommendations from the plant and grantovods.

Original timing belt and fake

Attention! Components from GATES (England) are most often counterfeited! From the photo you can understand what the main difference is. Beware of fakes.