Replacing the timing belt grant 8 valve. When to change the timing belt on a Lada Granta: recommendations from the factory and grant specialists. The alternator belt needs to be removed

The production of a domestic modification of the Lada Granta has been carried out for several years. The car has gained significant credibility due to its acceptable quality and level of performance, as well as the presence of several different configuration versions.

Today we’ll figure out when to change the timing belt, as well as which timing belt is better.

Some general provisions about the belt

The timing belt in any engine serves to ensure timely intake of the prepared mixture and release of exhaust gases. The composition of this node implies the presence of the following elements:

distribution and crankshafts;
the valves themselves with seals, springs, guide bushings and other parts.

Which timing belt is better? The belt mechanism, which acts as a connecting link between the camshaft (or two) and the crankshaft, is positioned separately in this mechanism. It is the belt drive that is able to ensure synchronization in the functioning of the elements included in the timing kit.

Find this one important element It won't take much effort on the engine. To do this, you just need to open the hood of the Lada Granta and you will see a special casing closed in front of you. This protection prevents contamination and the entry of foreign objects and dirt.

The design of the belt mechanism includes a rubber base and a working inner surface, made in the form of teeth with a certain pitch size.

What is the AvtoVAZ factory regulation regarding replacement?

Cars model line Lada Granta is equipped with various versions power unit. Some of them are not without problems in the event of an unpleasant break in the belt drive. This is caused by a collision of pistons with valves, as a result of which the latter are bent and the engine requires repair.

The possibility of bending (if a break occurs) is not available on the “11183-50” version of the motor, which is equipped with standard equipment.

Another important question: when to change the timing belt? To exclude this unpleasant situation the manufacturer intentionally regulates the periodic period mandatory replacement the specified “consumables”. The answer to the question of how long it takes to change the timing belt from the manufacturer is after 15 thousand kilometers. This requirement applies to both 8-valve engines and their 16-valve modifications.

Even despite the fact that the “21116” modification is equipped with a motor with an imported head, if the belt breaks, a similar sad fate awaits it.

The manufacturer does not recommend independently carrying out the procedure for either checking the condition of the belt or replacing it. And therefore, when the time has come to change the timing belt, you should contact service center. If it is revealed that the indicated operation was performed with one’s own hand, there is a high probability of depriving the owner of the opportunity warranty service. For self-replacement The manufacturer provides approval regarding:

cabin filter;
a similar element for the intake system.

However, many car owners still carry out the replacement on their own, but not all new drivers know how long it takes to change the timing belt, and also which timing belt is better than the rest.

Many Lada Granta owners, especially those equipped with 16-valve versions of power units, recommend not waiting for the coveted 60 thousand km mark. This is due to the possibility of using low-quality components, which can cause wear of the replaced elements after a mileage of 20 thousand km.

This fact encourages many Grantavods to resort to using products with good quality, and many of them, when asked which timing belt is better, answer that it is from the manufacturer “Gates”. But we note that there are counterfeits of spare parts of this brand, and therefore it is recommended to purchase items only from trusted suppliers.

If you set out to replace the component yourself, then you should not neglect some of the recommendations below. In particular, do not forget to observe the interval at which you change the timing belt.

After attaching the belt, it is required correct tension. This is done through the use of a specialized key. Some “figures” will object, they say, we can do without it. However, here it is very problematic to dare to guarantee a high-quality result.
The force applied to the belt branch (when rotated at a 90-degree angle), located between two shafts (well-known: camshaft and crankshaft), should not exceed 20 Nm, but it should not be less than 15 Nm. If there is no “fall” within the designated parameter range, this indicates incorrect belt tension. There is only one consequence - new adjustment!

What are the signs of a worn belt?

The indicated factors will allow you to accurately determine the moment when damage begins to appear on the Lada Granta belt, which will prevent its unexpected failure (break). When to change the timing belt, how can you tell if it is worn out?

Primary signs include a significant degree of material wear. This fact can easily provoke the “consumables” to slip or break when the load on the engine is insignificant or in conditions of high atmospheric humidity.
The appearance of wear is often caused by a violation of the correct position of the roller in relation to the pulley. This can be confirmed by increased heating of the bearing and fabric remnants of worn out cords sticking out to the sides, used to reinforce the rubber base of the belt.
The next sign will be the presence of cracks and peeling. The greater the number of these defects, the higher the chance of an early belt break.
If the back surface appears excessively hard, it can be revealed by the presence of shine. This factor, associated with loss of elasticity, indicates a loss of sufficient contact between the belt and the pulleys.
During operation, the belt surface may lengthen, which can cause it to jump on the teeth of the shaft pulley. Replacing the belt in this case is straightforward.
Failure of the roller is a direct evidence of incorrect positioning of the belt in relation to its working plane.

What are the expected consequences of a break?

As stated, no problems with the Lada Granta engine in the 8-valve version, or if the belt drive breaks, arise only in the version of the “11183-50” unit. The remaining engines are at risk of failure in the event of a designated unpleasant incident.
In view of this, a dispute arose among the “Grantavods” regarding the advantages of LADA Granta engines with 16 and 8 valves, and which unit has more of them. Your point of view will also be very interesting.

If the belt drive breaks, the camshaft stops in the position corresponding directly to the moment of failure. In contrast, the crankshaft is subject to continued rotation. This causes the pistons to hit the valves that were in the open position at a given moment. Then the latter bend, but sometimes a breakdown of the piston bottom occurs. Popularly called “fist of friendship”!

It is based on this fact that experts are inclined to recommend changing the timing kit before the period stated by the manufacturer for this action.

conclusions

Now you know how long to change the timing belt. Undoubtedly, a broken LADA Granta belt is a source of unprecedented problems. This circumstance does not mean that you need to remain inactive. Below are a few recommendations whose goal is to minimize this risk.

1. Be very careful when checking the belt for wear. This action is recommended to be carried out after 10-15 thousand km.

2. Do not neglect checking the condition of the seals. The defect manifests itself in the form of characteristic spots under the bottom of the car.

3. The flashing of the lamp that registers the oil pressure in the LADA Granta engine may indicate a problem. If this fact manifests itself, we urgently turn off the engine and take measures to find the source of the breakdown.

4. Use only original spare parts, although no one has canceled the procedure for monitoring their condition.

The timing belt on the eight-valve Lada Grande is the link that connects the camshaft to the crankshaft. It works with virtually no noise. Some engines use metal chains. They certainly have their advantages, but they still make a fair amount of noise.

The timing belt on a Grande cannot break suddenly. The break is preceded by a fairly long destructive process. If a break occurs while driving, this will certainly cause a collision between the valves and the piston system. Because of this, the valves will definitely bend, and this is already expensive repairs. In order to prevent such damage, it is necessary to change the belts on time, and in order for the replacement to be timely, it is necessary to diagnose their condition from time to time during operation. Experts say that Lada Grante timing belts need to be replaced after 60,000 km. Of course, this is only a recommendation, and you should never forget about diagnostics.

Other experts say that belts begin to break down after 40,000 km, and that’s when they need to be changed.. And yet, quite often belts break not because they are completely worn out, but because the rollers or pump break. If the belt is severely worn or broken, it must be replaced. To do this, you can contact a car service, or you can do it yourself. Although this operation is quite complicated, it can still be carried out by a non-professional. For this we will need a mounting tool, a large screwdriver and keys for 10 and 17. Replacing a belt on an 8-valve Lada is almost identical to replacing this unit on a 16-valve one.

Of course, the reasons for the breakage can be very different; among other things, this can also happen due to the low level of assembly quality of the unit at the factory. Poor quality material may also occur. One of the main causes of wear and tear is improper operation of the machine. Manufacturers of the Lada Grand claim that the timing belt assembly should be seriously examined only after 200,000 kilometers, but this, to put it mildly, is not entirely true. And if you remember about Russian roads, then it becomes absolutely clear that this is definitely not the case.

Replacement process

First of all, you will have to remove battery terminals. Then the generator drive belt is removed. To dismantle the node we are interested in, we need to provide the most complete access to it. Because of this, it will be necessary to remove front wheel on right. At this point, preparation for the replacement can be considered complete, and the replacement itself begins.

Before direct replacement it is necessary to dismantle the timing mechanism. This must be done so that the first piston can be installed in top position. To do this, loosen the nut tensioning mechanism. After this, the belt will definitely weaken and sag.

Now we need to unscrew the main bolt securing the generator pulley.

This can be done using the most ordinary key. It may well happen that the bolt will not come out of the pulley. If this happens, don’t be upset, just do the following: remove the plug in the clutch housing. At the same time, do not forget to fix the flywheel teeth. To do this, you can use conventional installation. Now the pulley bolt will no longer turn because the crankshaft is in a locked state. And after that we easily remove the generator pulley.

Remember that the pulley should only be removed after the mounting has been removed.

Attention! After removal, the pulley is placed on something clean, for example, a rag. Remember that if debris gets into the unit assembly, this may well cause jamming.

Now it's time to remove the upper timing case cover. To remove the lower part of the cover, you will have to unscrew 3 mounting bolts. Then you can directly remove the timing belt. If it does not give in, pry it off with a pry bar. After dismantling the belt, be sure to check the condition of the tension roller. Particular attention should be paid to the level of play. Appearance can also say a lot about the state of a given node. To make removing the belt more convenient, you first need to remove it from timing pulley, and then from the crankshaft.

Assembling the unit is done in the reverse order, making sure to correctly adjust the belt tension.

Video on replacement (using the example of Kalina with the same engine)

Replacing timing belt Lada Granta 8 valves required once every 75 thousand kilometers. If you ignore planned replacement belt, tension pulley and sometimes the pump (coolant pump), then you can run into serious engine repairs Lada Granta. After all, a broken timing belt almost always leads to damage to valves, valve seats and even pistons. Therefore, the timing drive must be treated very carefully. Every 15 thousand it is necessary to inspect the belt for breaks, cracks, peeling or oiling. Detailed diagram Lada Granta timing drive further.

1 - crankshaft toothed pulley
2 - coolant pump toothed pulley
3 - tension roller
4 - rear protective cover
5 - camshaft gear pulley
6 - timing belt
A - tide on the rear protective cover
B - mark on the camshaft pulley
C - mark on the cover oil pump
D - mark on the crankshaft pulley.

To replace the timing belt, we need to remove the alternator drive belt or drive belt auxiliary units for Grant with air conditioning. Using a “5” hexagon, unscrew the four screws securing the front upper timing drive cover and remove the plastic casing.

To avoid damage to the crankshaft position sensor, it must also be removed. With the ignition off, release the clamp of the wiring harness block and disconnect the block from the sensor connector. Use a 10mm socket to unscrew the sensor mounting bolt.

We remove the sensor from the oil pump cover boss hole and put it in a place where there are no steel filings that could subsequently disrupt the operation of the sensor.

Before dismantling the belt, it is necessary to check the engine valve timing - set the piston of the 1st cylinder to the TDC position (top dead center) compression stroke. Using the “17” head, turn the crankshaft clockwise by the bolt securing the generator drive pulley until mark 1 is aligned on toothed pulley camshaft with boss 2 on the rear timing cover.

To ensure that the crankshaft is in the correct position, remove the rubber plug for the inspection window at the top of the clutch housing. Mark 2 on the flywheel should be located opposite slot 1 of the scale, which is visible in the window of the clutch housing cover.

Before unscrewing the bolt securing the generator drive pulley, ask an assistant to secure the crankshaft from turning by inserting a screwdriver through the window in the clutch housing between the flywheel teeth.

Using a 17mm socket, unscrew the bolt securing the generator drive pulley, remove the pulley and washer.

Use a 5mm hex to unscrew the three screws securing the front lower timing cover. Remove the cover.

Using a 15mm spanner, loosen the tension roller mounting bolt.

At the same time, the tension roller will rotate and the belt tension will weaken. Remove the timing belt from the crankshaft pulleys and camshafts. We take out the belt from engine compartment Grants.

Attention! After removing the timing belt, do not rotate the crankshaft and camshaft to avoid the pistons sticking into the valves. Dimensions timing belt drive Timing belt Lada Granta with 8 valve engine – width 17 mm, number of teeth 113.

To remove the timing belt tension roller, unscrew the bolt securing it and remove the tension roller along with the bolt.

We rotate the plastic clip of the roller, holding it by the eccentric. The roller should rotate silently, evenly and without jamming. Otherwise, the roller must be replaced.

At the same time, you can check the serviceability of the coolant pump by twisting and shaking it by the pulley. We install the tension roller in place without completely tightening the bolt that secures it. For different modifications The engine has two threaded holes in the cylinder head for the tension roller mounting bolt. Screw the roller mounting bolt into the upper hole of the cylinder head. In the photo below, the hole is indicated by a red arrow.

We install the Grant timing belt in the reverse order. Before installing the belt, make sure it is aligned alignment marks crankshaft and camshaft. We put the belt on the toothed pulley of the crankshaft, then tensioning both branches of the belt, put the rear branch on the coolant pump pulley and put it behind the tension roller, and put the front branch on the camshaft pulley.

If necessary, turn the camshaft pulley in the direction of the smallest stroke until the belt teeth coincide with the pulley cavities. To tension the belt, turn the tension roller counterclockwise. To do this, insert rods into the grooves of the outer disk of the roller (diameter 4 mm, distance between rods 18 mm) special key(for clarity, shown in the filmed video).

This key was used to adjust the belt tension in all front-wheel drive VAZs, you can buy it at any auto parts store.

You can also use pliers to remove the retaining rings to adjust the tension of the Lada Granta timing belt. We tighten the belt by turning the belt tension roller counterclockwise until the cutout of the outer disk of the roller coincides with the rectangular protrusion of its inner sleeve, and tighten the roller mounting bolt with a torque of 34–41 Nm.

Excessive belt tension will reduce belt life, as well as the life of the coolant pump bearings and tension pulley. Insufficient belt tension also leads to it premature exit out of order and may cause irregular valve timing. Turn the crankshaft two turns clockwise. We check the belt tension and the alignment of the installation marks of the crankshaft and camshaft. At removed pulley generator drive correct position It is convenient to control the crankshaft by aligning mark 1 on the crankshaft toothed pulley with rib 2 of the oil pump cover. Photo for clarity below.

If you are not confident in your abilities, then you can entrust the work of replacing the belt on a Lada Granta to a car service center. For an engine with an 8-valve timing mechanism, this is cheaper than for a version with a 16-valve engine.

The timing belt on an 8-valve Granta is the connecting link between camshaft And crankshaft. The Grant 8 valve timing belt acts as a flexible connection that ensures a silent operation (the iron chain in old engines created decent noise).

A broken timing belt on a Grant is accompanied by its gradual destruction. Complete destruction of the belt while the car is moving leads to a collision between the pistons and the valves, as a result of which the latter experience various types of damage, most often bending. The only way to avoid damage to the valves is to replace the timing belt prematurely, the timing of which is specified in the car’s service book.

Lada Granta 11183 engines, unlike engines of other VAZ models, need to replace the timing belt every 60 thousand km. Replacing the belt at this mileage is solely the recommendation of the car manufacturer.

In order to achieve maximum safety and integrity of the car engine mechanisms, it is recommended to replace them every 40 - 50 thousand km. It is at this stage that the rollers and pump begin to wear out.

In most cases, timing belt failure does not occur as a result of complete wear and tear its structure, namely the failure of the (wedge) rollers or pump.

In the event that the Lada Granta 8-valve timing belt breaks, the following tools must be used to replace it:

Key to "10"; key to "17"; mounting blade; special key for adjusting the timing belt tension.

Carrying out work to replace the timing belt on an 8-valve engine follows the instructions below. As for the 16-valve engine, the instructions are almost identical to the 8-valve engine.

Replacing the timing belt on an 8-valve engine begins directly with removing the terminals from the battery, after which we remove the generator drive belt. To replace the belt, you must have full access to the necessary components. To achieve this access, it is necessary to remove the front right wheel.

Replacing the belt is preceded by disassembling the timing mechanism itself, namely removing its front top cover. Why is such an event held? It is necessary to set the first piston to the TDC (Top Dead Center) position.

Adjusting the tension roller nut

It is the appropriate adjustment of the tension roller, or rather the use of the Lada Granta timing belt in a fixed tension, that determines the service life of the Lada Granta timing belt.

To dismantle a used or broken timing belt, it is necessary to loosen the tension roller nut, as a result of which the belt will be brought to a weakened position. After this, you can proceed to the next stage.

Important: do not try to simply cut the belt so as not to unscrew the tension bolts. In this case, you will not be able to wear new belt on the shafts.

Generator drive pulley: unscrew the main bolt of the generator pulley

You can unscrew the alternator pulley bolt using regular keys, which were mentioned above in the list. necessary tools. If the bolt does not come out of the generator pulley, then you must perform the following steps:

Removing the plug in the clutch housing

The flywheel teeth are fixed with a mounting blade, the presence of which was justified by the list of necessary tools.

After performing these steps, the generator pulley bolt will stop turning, since the crankshaft will be fixed with a mounting blade.

Removing the generator pulley

The generator pulley must be dismantled immediately after removing the mounting blade. After dismantling is completed, the pulley must be placed on a clean surface. The presence of debris in the unit assembly can cause it to jam.

Removing the lower timing cover

The process of dismantling the lower timing cover is carried out by removing three mounting bolts. This design occurs in Grants 21116 and 11186 engine models.

Removing the timing belt

The last stage is dismantling the timing belt and then determining the condition of the tension roller. The belt removal process occurs in the following order:

Removing the timing belt from the timing pulley

Removing the belt from the crankshaft.

It is at the second stage that the Grant timing belt is dismantled along with the tension roller. We carry out visual inspection roller, in particular, we determine the external condition and level of play of the mechanism.

At the time of reinstalling the lower timing cover, it is necessary to adjust the tension of the belt itself.

The reasons for premature belt breakage on the Lada Grant remain a mystery, which is based not only low quality the material used in the belt, as well as the low quality of assembly of the aggregate units through which the timing belt passes.

Among other reasons for premature timing belt breakage, one can note the desire of the car manufacturer to keep up with Euro 3/4. It was the desire to adjust the car to these standards that led to the above-mentioned negative aspects in the daily operation of the car.

Despite the manufacturer’s claims about the quality of Grant’s timing belt and the threshold of his personal mileage of 200,000 thousand km, it breaks already at 70–80 thousand km. good and a worthy solution A replacement can be a Gates roller belt.

It is the Lada Granta from Priora that the timing belt will fit the Lada Granta and will not cause premature failure. The price of a timing belt for a Grant allows it to be changed every 50,000 thousand km, which, in turn, will reduce the likelihood of other cost items arising regarding the repair of engine valves.

In this article we will touch upon the problems that can be caused by a poor-quality or worn timing belt of the Lada Granta 8 valves and 16 valves. Despite its simplicity, this part plays a huge role in the operation of the car engine.

During the operation of the power unit, it does not matter whether it is 16 cl or 8 cl, the belt gradually wears out and if it is not replaced in a timely manner, it may completely collapse and break. This should not be allowed, because it can lead to such a dangerous phenomenon as bending of valves and destruction piston system. In the instructions that come with the Lada Granta car with a 16 cl engine and eight-valve, the recommended replacement period is 60 thousand km. mileage But according to the opinion of many professionals, this figure is slightly overestimated and it is not worth reaching it, and replacement should be done after 50 thousand kilometers.

Another reason why it is worth changing the belt earlier is that components such as the pump and guide rollers are designed to last fifty thousand. After which their use is risky. Using these units beyond their expiration date may lead to the breakage of the belt drive with all negative consequences for the system. But in any case, after how many kilometers to change the belt and which one is better to choose is your personal matter.

Why do you need a timing belt?

The timing belt on a Lada Granta car is necessary to synchronize the operation of the camshaft and crankshaft. In the instructions for cars 16 and 8 cl, the replacement period is regulated. However, nevertheless, most car enthusiasts know little about it and may not even know its location, not worrying about how to change it correctly. It is easy to find; you just need to lift the hood of the car. In the most visible place there is a timing belt covering many pulleys. After opening the instructions that came with vehicle You can also easily find the section that describes this node. The timing belt interacts not only with the crankshaft and the camshaft, but also with several other systems. Such a load significantly reduces the life of the belt, which makes it possible for it to break.

We change the belt ourselves

Replacing the timing belt after a specified period on 16 and 8 cl Lada Granta engines simple process and even a novice car enthusiast can do it with his own hands. The main thing is to carefully follow all the instructions and not miss anything.

Required Tools

Stages of work

The next important stage is the correct tension of the timing belt drive of the Lada Granta with 16 cl and 8 cl units.

Attention! The tension roller should not move or deviate, no matter how much in one direction or another, this will be proof that it is in good condition and working correctly. This means that its breakage is excluded.

Video " Replacing the timing belt on VAZ cars»

This video shows how the timing belt is replaced on VAZ family cars. including the Lada Granta. It is explained not only how to change the belt correctly, but also which one is needed to prevent breakage.

Replacing timing belt Lada Granta 8 valves required once every 75 thousand kilometers. If you ignore the planned replacement of the belt, tension roller and sometimes the pump (coolant pump), you can run into serious repairs Lada engine Granta. After all, a broken timing belt almost always leads to damage to valves, valve seats and even pistons. Therefore, the timing drive must be treated very carefully. Every 15 thousand it is necessary to inspect the belt for breaks, cracks, peeling or oiling.

Detailed diagram of the Lada Granta timing drive further.

1 - crankshaft toothed pulley
2 - coolant pump toothed pulley
3 - tension roller
4 - rear protective cover
5 - camshaft gear pulley
6 - timing belt
A - tide on the rear protective cover
B - mark on the camshaft pulley
C - mark on the oil pump cover
D - mark on the crankshaft pulley.

To replace the timing belt, we need to remove the alternator drive belt or accessory drive belt for the Grant with air conditioning. Using a “5” hexagon, unscrew the four screws securing the front upper timing drive cover and remove the plastic casing.

We remove the sensor from the oil pump cover boss hole and put it in a place where there are no steel filings that could subsequently disrupt the operation of the sensor.

Before dismantling the belt, it is necessary to check the engine valve timing - set the piston of the 1st cylinder to the TDC (top dead center) position of the compression stroke. Using the “17” head, turn the crankshaft clockwise by the bolt securing the generator drive pulley until mark 1 on the camshaft timing pulley aligns with boss 2 on the rear timing cover.

Using a 17mm socket, unscrew the bolt securing the generator drive pulley, remove the pulley and washer.

Use a 5mm hex to unscrew the three screws securing the front lower timing cover. Remove the cover.

Using a 15mm spanner, loosen the tension roller mounting bolt.

At the same time, the tension roller will rotate and the belt tension will weaken. Remove the timing belt from the crankshaft and camshaft pulleys. We remove the belt from the Granta’s engine compartment.

Attention! After removing the timing belt, do not rotate the crankshaft and camshaft to avoid the pistons sticking into the valves. The dimensions of the Lada Granta timing belt with an 8-valve engine are width 17 mm, number of teeth 113.

To remove the timing belt tension roller, unscrew the bolt securing it and remove the tension roller along with the bolt.

We rotate the plastic clip of the roller, holding it by the eccentric. The roller should rotate silently, evenly and without jamming. Otherwise, the roller must be replaced.

At the same time, you can check the serviceability of the coolant pump by twisting and shaking it by the pulley. We install the tension roller in place without completely tightening the bolt that secures it. For different engine modifications, the cylinder head has two threaded holes for the tension roller mounting bolt. Screw the roller mounting bolt into the upper hole of the cylinder head. In the photo below, the hole is indicated by a red arrow.

We install the Grant timing belt in the reverse order. Before installing the belt, make sure that the alignment marks of the crankshaft and camshaft are aligned. We put the belt on the toothed pulley of the crankshaft, then tensioning both branches of the belt, put the rear branch on the coolant pump pulley and put it behind the tension roller, and put the front branch on the camshaft pulley.

If necessary, turn the camshaft pulley in the direction of the smallest stroke until the belt teeth coincide with the pulley cavities. To tension the belt, turn the tension roller counterclockwise. To do this, insert the rods (diameter 4 mm, distance between the rods 18 mm) of a special key into the grooves of the outer disk of the roller (for clarity, shown on the removed roller).

This key was used to adjust the belt tension in all front-wheel drive VAZs; you can buy it at any auto parts store.

Excessive belt tension will reduce belt life, as well as the life of the coolant pump bearings and tension pulley. Insufficient belt tension also leads to premature failure and can cause irregular valve timing. Turn the crankshaft two turns clockwise. We check the belt tension and the alignment of the installation marks of the crankshaft and camshaft. With the generator drive pulley removed, it is convenient to control the correct position of the crankshaft by aligning mark 1 on the crankshaft toothed pulley with rib 2 of the oil pump cover. Photo for clarity below.

The gas distribution mechanism is one of the most important engine systems internal combustion. The timing belt controls the engine valves, ensuring the normal functioning of intake and exhaust. During intake fuel-air mixture enters the combustion chambers as a result of opening intake valve. The next phase opens the exhaust valve, and the gas distribution mechanism removes exhaust gases from the combustion chamber. The VAZ 2190 uses a standard gas distribution unit, differing only in the number of engine valves.

Characteristics of Lada Granta timing belt

Distribution mechanism gases Lada Granta has a belt drive. This type of device has been familiar to car enthusiasts for a long time. After all, the timing belt design migrated from the VAZ 2108 engine, which became the basis for all subsequent modifications power plants VAZ. The Grant is equipped with two types of engines: an 8-valve engine and a 16-valve engine. The gas distribution system of the 16-valve power unit has complex device and increased dimensions compared to the 8-valve. Accordingly, replacing the Granta timing belt becomes more complicated.

The main feature of the 16-valve device is the presence of two camshafts operating synchronously, in parallel with the crankshaft. The structure is located in the cylinder head. All three shafts are synchronized via a toothed belt. Main disadvantage timing belt transmission due to the unreliability of the belt itself. When it breaks or jumps, the valves meet the pistons and bend. The structure of the 16-valve timing belt is clearly shown in the photo.

16 valve unit

Installation mark on the drive cover.
Lid.
Intake camshaft pulley.
Phase disk (sensor).
TDC mark on the camshaft.
Exhaust camshaft pulley.
Support roller.
Tensioner roller.
Drive belt.
Pump pulley (coolant pump).
Installation mark on the oil pump.
Crankshaft alignment mark.
Crankshaft pulley.

You can change the timing belt kit yourself. The main thing is to know about the presence and correct placement of installation marks. By the way, most foreign cars do not have such marks, so in this case VAZ cars have an advantage.

The eight-valve timing drive of the Lada Granta, compared to previous modifications of the car, looks simpler. The scheme is simple, because there is no deflection roller and there is only one camshaft. The 8-valve timing device can be seen clearly in the photo.

If there is any doubt about own strength, there is no need to try to replace the timing belt with your own hands, as you can cause even more damage. In addition, in a car service center such a procedure, performed on an 8-valve engine, is inexpensive. But in the case of a 16-valve engine, the price tag is usually much higher.

Replacing the timing belt on a 16-valve Granta engine

Access to the gas distribution device drive is blocked plastic casing. To remove the cover, you need to unscrew the five screws with a 5mm hex key. Special attention on the location of these screws. In the photo, number 1 shows the fastening screws of the top cover, and number 2 shows the fastening screws of the bottom cover. After unscrewing five screws top cover need to be lifted and removed from the engine.

If the car has manual transmission, you need to turn on the fifth speed, hang out the right front wheel and turn it clockwise. At the same time, it is necessary to inspect the belt for cracks, abrasions, delamination, etc. If the vehicle is equipped automatic transmission, you need to remove the right front wheel and the boot (protective shield) on the right. The 17mm head rotates the drive pulley mounting bolt to additional equipment(air conditioner, generator) and the belt is inspected. If various defects and damage to the belt are diagnosed, it must be urgently replaced. Replacement will also be required if oil leaks, a malfunction of the water pump or tensioner roller are detected.

On a 16-valve engine, a broken belt drive will lead to a discrepancy in the angular position of the crankshaft and camshafts. As a result, contact will occur piston group with valves. As a result, repair work will be required.