Timing belt tensioner grant 8 valve. The process of replacing the timing belt on a grant fret

The timing belt on the eight-valve Lada Grande is the link that connects the camshaft to the crankshaft. It works almost silently. Some engines use metal chains. They certainly have their advantages, but still they make a decent noise.

The timing belt on the Grande cannot break suddenly. The cliff is preceded by a fairly long destructive process. If a break occurs while driving, this will certainly cause the valves to collide with the piston system. Because of this, the valves will definitely bend, and this is already an expensive repair. In order to prevent such damage, it is necessary to change the belts in 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 the replacement of timing belts for the Lada Grant should be done after 60,000 km. Of course, this is only a recommendation, and you should not forget about diagnostics in any case.

Other connoisseurs 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 of a broken roller or pump. 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 is still possible for a non-professional to carry out it. To do this, we need - a mount, a large screwdriver and keys for 10 and 17. Replacing the belt on an 8-valve Lada is almost identical to replacing this assembly 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 at the factory. Poor quality material can also take place. One of the main causes of wear is improper use of the machine. The manufacturers of the Lada Grand claim that the timing unit should be seriously examined only after 200,000 kilometers, but this, to put it mildly, is not entirely true. And if you remember the Russian roads, it becomes quite clear that this is definitely not the case.

Replacement process

First of all, you will have to remove the battery terminals. Then the generator drive belt is dismantled. In order to dismantle the node of interest to us, we need to provide the most complete access to it. Because of this, you will have to remove the front wheel on the right. On this, the preparation for the replacement can be considered completed, and the replacement itself begins.

Before direct replacement, the timing mechanism must be dismantled. This must be done in order to be able to set the first piston to the top position. To do this, loosen the tensioner nut. After that, the belt will definitely weaken and sag.

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

This can be done using the most common key. It may well happen that the bolt will not come out of the pulley. If this happens, do not be discouraged, but simply do the following: remove the plug in the clutch chamber. When doing this, do not forget to fix the teeth of the flywheel. To do this, you can use the usual installation. Now the pulley bolt will no longer scroll, because the crankshaft is in a locked state. And after that, we easily remove the alternator pulley.

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

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

Now it's time to remove the top timing cover. To remove the lower part of the cover, you will have to unscrew the 3 fixing bolts. Then you can directly remove the timing belt. If it does not give in, pry it with a pry bar. Having dismantled the belt, it is necessary to check the condition of the tension roller. You should especially look at the level of backlash. Appearance can also tell a lot about the state of a given node. To make it more convenient to remove the belt, you first need to remove it from the camshaft pulley, and then from the crankshaft.

The assembly of the assembly is carried out in the reverse order, while it is worth adjusting the belt tension correctly.

Replacement video (using the example of Kalina with the same engine)

Engine Lada Grants 8 valve 1.6-liter volume is currently the most popular among buyers of a budget sedan. The design of the motor is well known not only in the official service, but also in any garage. Therefore, repair and maintenance this motor does not cause difficulties and is relatively inexpensive. Today we will talk more about this engine in more detail.

Gasoline power unit Lada Granta VAZ-11186 with a capacity of 87 hp working volume of 1.6 liters replaced the injection engine VAZ-11183 developing 82 horsepower. The new lightweight piston group from Federal Mogul managed to increase the power and efficiency of the power unit. Of course, the motor does not differ in enchanting dynamics and low fuel consumption, but its relatively simple design and maintainability make it possible to speak of a good option for our harsh operating conditions.

As for the device of the technical part, it is based on a cast-iron cylinder block, an aluminum head, an aluminum cylinder head cover, and a steel engine oil pan. In the timing drive Lada Granta 8-cl. worth the belt. The eight-valve timing mechanism does not have hydraulic lifters, valve adjustment is rare, but the process is rather painstaking. It is necessary to select “pyataki” of different thicknesses and lay them between the camshaft cams and the bottoms of the pusher cups. The first time such a procedure is carried out at the so-called “0” zero maintenance, after 3000 km of run.

The eternal question does the valve bend on the Grant engine VAZ-11186 when the timing belt breaks? The answer is unequivocal, when the belt breaks valve bend! As a pair, a 5-speed gearbox is attached to the motor. mechanical box gear, no other options.

Engine Lada Granta 1.6 (87 hp), fuel consumption, dynamics

• Working volume - 1597 cm3
• Number of cylinders / valves - 4/8
• Timing drive - belt
• Cylinder diameter - 82 mm
• Stroke - 75.6 mm
• Power hp / kW - 87/64 at 5100 rpm
• Torque - 140 Nm at 3800 rpm
• Maximum speed - 167 kilometers per hour
• Acceleration to the first hundred - 12.2 seconds
• Fuel consumption in the city - 9.0 liters
• Combined fuel consumption - 6.6 liters
• Fuel consumption on the highway - 5.8 liters

Timing diagram Lada Granta 8 valves

• 1 - a gear pulley of a cranked shaft
• 2 - toothed pulley of the coolant pump
• 3 - tension roller
• 4 - rear protective cover
• 5 - camshaft 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.

Another feature of the motor can be called the location of the water pump (pump), which rotates in the same timing belt. That is, in the event of coolant leaks or a characteristic noise / whistle / hum in the timing drive area, checking the belt is mandatory. If the pump bearing crumbles and the belt flies off, then in addition to replacing the water pump housing and the belt, you will also have to sort out the cylinder head, removing the bent valves from there.

The release of the domestic modification of the Lada Grant has been carried out for several years. The car has gained considerable confidence, due to its acceptable quality and level of performance, as well as the presence of several different versions of the configuration.

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

A few general points about the belt

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

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

Which timing belt is best? A belt mechanism is positioned apart in this mechanism, acting as a connecting link between the distribution (or two) and crankshafts. It is the belt drive that is able to provide synchronization in the functioning of the elements included in the timing kit.

Finding this important element on the motor will not be a big effort. To do this, you only need to open the hood of the Lada Grant and you will see a closed with a special casing in front of you. This protection prevents contamination and the ingress 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.

What is the AvtoVAZ factory regulation in terms of replacement?

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

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

Another not unimportant question: when to change the timing belt? To eliminate this unpleasant situation, the manufacturer deliberately regulated the periodic period for the mandatory replacement of the specified “consumable”. The answer to the question of how much to change the timing belt from the manufacturer's company is after 15 thousand kilometers. This requirement applies to both 8-valve motors and 16-valve modifications.

Even despite the equipping of the modification "21116" with a motor with an imported head, if the belt breaks, a similar sad fate awaits it.

The manufacturer does not recommend independent implementation of the procedure for both checking the condition of the belt and replacing it. And therefore, when it is already time to change the timing belt, you should contact service center. If it is revealed that the operation was performed by hand, there is a high probability that the owner will be deprived of the possibility of warranty service. For self-replacement, the manufacturer grants an authorization regarding:

• cabin filter;
• a similar element for the intake system.

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

Many Lada Grant owners, especially those equipped with 16-valve versions power units, recommend not to wait for the coveted mark of 60 thousand km. This is due to the possibility of using low-quality components that can provoke wear of the replaced elements already after a run of 20 thousand km.

This fact encourages many "Grantavodov" to resort to the use of 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 fake spare parts of this brand, and therefore, it is recommended to stop buying 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 after which to change the timing belt.

After hanging the belt, it must be properly tensioned. This is done through the use of a specialized key. Some "figures" will object, they say, you can do without it. However, it is very problematic to dare to guarantee a qualitative result here.
The force applied to the belt branch (when it is turned through a 90-degree angle) located between two shafts (well-known: distribution and crankshafts) should not exceed 20 Nm, but should not reach less than 15 Nm either. If there is no "hit" in the indicated parameter interval, then this indicates an incorrect belt tension. There is only one consequence - a new regulation!

What are the signs of a worn belt?

The indicated factors will allow you to accurately determine the moment of the onset of damage on the Lada Grant belt, which will prevent its unexpected failure (breakage). When to change the timing belt, how to understand that it is worn out?

1. Among the primary signs there is a significant degree of wear of the material. This fact will easily provoke slipping or breakage of the “consumable” with an insignificant load on the motor or in conditions of high atmospheric humidity.
2. The appearance of wear is often provoked by a violation of the correct position of the roller in relation to the pulley. This can confirm the increased heating of the bearing and the fabric remnants of worn cords sticking out to the sides used to reinforce the rubber base of the belt.
3. The next sign will be the presence of cracks and delaminations. The greater the number of these defects, the higher the chance of an early belt break.
4. If excessive hardness appears at the back surface, then it can be given out by the presence of gloss. This factor, associated with the loss of elasticity, indicates the loss of sufficient contact between the belt and the pulleys.
5. During operation, it is possible to lengthen the belt surface, which can cause it to jump on the teeth of the shaft pulley. Replacing the belt in this case is unambiguous.
6. The failure of the roller, as a direct evidence of the incorrect location of the belt in relation to its working plane.

What are the expected consequences of the break?

As agreed, there are no problems with the Lada Grant engine in the 8-valve version; if the belt drive breaks, it does not occur only in the version of the 11183-50 unit. The rest of the engines are at risk of failing in the indicated unpleasant incident.
In view of this, a dispute unfolded among Grantavods about 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.

When the belt drive breaks, the camshaft stops in a position corresponding directly to the moment of failure. In contrast, the crankshaft is subject to continued rotation. This causes the pistons to hit those valves that were in the open position at a given moment. Further, the latter are bent, but sometimes a breakdown of the piston bottom occurs. In a popular way, the “fist of friendship”!

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

conclusions

Now you know how much to change the timing belt. Undoubtedly, a broken LADA Granta belt is a source of unprecedented problems. This circumstance does not mean that it is necessary to be inactive. The following are some recommendations whose goal is to minimize the indicated risk.

1. Carefully treat the procedure for checking the belt for wear. This action is recommended to be carried out after 10-15 thousand km.

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

3. The problem may be indicated by the flashing of the lamp that registers the oil pressure in the LADA Granta engine. 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.

Timing drive scheme: 1 - crankshaft toothed pulley; 2 – a gear pulley of the pump of a cooling liquid; 3 - tension roller; 4 - rear protective cover; 5 – a gear pulley of a camshaft; 6 - toothed belt; A - a tide on the rear protective cover; B - mark on the camshaft pulley; C - mark on the cover of the oil pump; D - mark on the crankshaft pulley.

With a “5” hexagon, we unscrew the four screws securing the front upper timing cover.

We remove the cover.

We post the right front wheel and turn on the fifth gear in the gearbox. Rotating the wheel clockwise, we turn the engine crankshaft and inspect the timing belt. With proper belt tension...

... cutout 1 of the outer disk of the tension roller must coincide with the rectangular protrusion 2 of its inner sleeve.

The surface of the toothed part of the belt must not have folds, cracks, undercutting of the teeth and delamination of the fabric from the rubber. The reverse side of the belt should not have wear, exposing the cord threads, and signs of burning. On the end surfaces of the belt there should be no delaminations and fraying. If defects are found on the belt or a significant discrepancy between the belt tension control elements (see photo above), the belt must be replaced. You should also change the belt to a new one if traces are found on it. engine oil(before installing a new belt, the cause of oil on the belt must be eliminated) or when replacing the coolant pump.

Attention! Failure of the timing belt (breakage and shearing of teeth) can lead to sticking of valves into the pistons due to a mismatch in the angles of rotation of the crankshaft and camshaft and, as a result, to costly engine repairs.

Replacing the timing belt in accordance with the regulations Maintenance we carry out every 75 thousand kilometers or in case of defects on the belt.

To avoid damage to the crankshaft position sensor, you must remove it.

With the ignition off, we depress the clamp of the wiring harness block and disconnect the block from the sensor connector.

Using the “10” head, unscrew the sensor mounting bolt.

We take out the sensor from the tide hole of the oil pump cover and set it aside 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 valve timing of the engine - set the piston of the 1st cylinder to the TDC (top dead center) position of the compression stroke.

With the “17” head, turn the crankshaft clockwise for the bolt securing the alternator drive pulley ...

... until mark 1 on the camshaft pulley aligns with lug 2 on the rear timing cover.

To make sure that the crankshaft is in the correct position, we take out the rubber plug of the viewing window at the top of the clutch housing.

Risk 2 on the flywheel should be located opposite the slot 1 of the scale on the upper cover of the clutch housing.

Before unscrewing the bolt securing the alternator drive pulley ...

... we ask the assistant to fix the crankshaft from turning by inserting a screwdriver through the window in the clutch housing between the teeth of the flywheel.

Using the “17” head, unscrew the bolt securing the alternator drive pulley, ..

... remove the pulley ...

...and the puck.

With a “5” hexagon, we unscrew the three screws securing the front lower timing cover

We remove the cover.

Using a 15 spanner wrench, we loosen the tightening bolt of the tension roller.

In this case, the tension roller will turn and the belt tension will loosen. Remove the timing belt from the crankshaft and camshaft pulleys.

We take out the belt from the engine compartment.

Attention! After removing the timing belt, the crankshaft and camshaft must not be rotated to avoid sticking the pistons into the valves.

Timing timing belt marking (width 17 mm, number of teeth 113).

The domestic car Lada Grant has been produced for several years. And, thanks to the good workmanship, and several different trim levels, he managed to win the trust of many drivers. Today we will talk about replacing the timing belt with Lada Granta.

General timing belt

In any car, the gas distribution mechanism allows for the timely intake and release of the working mixture and exhaust gases, respectively. This mechanism includes a camshaft, as well as various parts of the valve drive, as well as the valves themselves with springs, as well as guide type bushings.

If we talk about the timing belt, then it is a special element that works as a link. Thanks to him, synchronous operation of the camshaft and crankshaft is ensured.

Finding such a belt is not at all difficult. It will be enough for you, after which the belt will appear to your eyes. True, this “special assembly” will be protected by a special casing, which should prevent the ingress of dirt and protect it from other mechanical influences.

Externally, the timing belt has a toothed inner surface and a rubber base. Unlike other types of belts, it covers several pulleys at once.

In addition to the two named shafts, the belt combines several more units, such as a water pump (pump) and so on.

If the rollers or the pump are damaged, then this allows us to talk about increased speed wear of the belt, which reduces its service life by many times.

Technical regulations of the AvtoVAZ plant for replacing the belt

Cars of the Lada Grant family are equipped, as we have already said, with various engine modifications. Some of them do not have a problem with the valves bending when the timing belt breaks, while others have a similar feature.

Only the 11183-50 engine does not bend the valve when the timing belt breaks, such a motor is installed on the Lada Granta in the standard configuration. Read more about which engines break valves when the timing belt breaks.

To eliminate the occurrence of an emergency situation, the manufacturer recommends changing the belt once every seventy-five thousand kilometers. But it will be necessary to control its condition more often - during the passage of each MOT, that is, after 15 thousand kilometers. This statement is true for 8 valve engines, and for 16 valve. Even despite the fact that the imported cylinder head is assembled, it will also have to do expensive repairs as a result of a broken belt!

Naturally, the manufacturer does not recommend replacing the belt yourself, as well as checking it. If you try to do all the work yourself, then there is a high probability that you will be denied subsequent warranty service. It is recommended to change only filters ( , ) by yourself.

Most Lada Grant owners, especially owners of 16-valve engines (repairs are much more expensive than an 8-valve counterpart), are advised not to wait for the prescribed 75 thousand kilometers. The fact is that low-quality components can lead to the fact that wear begins after 20 thousand kilometers.

Most owners use well-proven Gates products when replacing. But they love to fake this brand, so try to buy from time-tested suppliers!

K015670XS - part number for 16-valve engines.

If you decide to replace the belt yourself, then you should consider some recommendations.

For example, after installing the belt, you will also need to tighten it correctly. This is done using a special key. Some will notice that you can get by with improvised means, but then no one guarantees the result.

The force that is typical for turning the belt 90 degrees between the crankshaft and camshaft pulleys should not be more than 20 Nm, but it should not be allowed to be lower than 15 Nm. All other indicators will tell you that the belt tension was not done correctly, and further adjustment will be required.

Signs of belt wear

As we have already noted, it is necessary to regularly monitor the condition of the timing belt.

This will allow you to notice its damage even before it completely fails, damaging engine parts.

1. The first sign will be significant wear of the material. If so, then you run the risk of slipping or breaking with a significant load on the car, as well as with high humidity.
2. It follows that wear occurs, as a rule, when the position of the tension roller and pulley deviates, as well as when the bearing temperature is significant or its operation is unsatisfactory. You can notice this by the fact that the material will be worn out, and tissue remnants will stick out of it.
3. The third sign suggests the presence of cracks or delaminations. The more such damage, the higher the chance that the belt will break very soon.
4. Problems are also typical for a situation where the reverse surface of the belt has a low elasticity and significant hardness. It will also give out the characteristic shine of the belt. This will not allow him to make good contact with the pulley.
5. During operation, the belt may lengthen. If this parameter has become too large, then it is worth replacing the belt with a new one, especially since its elastic abilities will be significantly reduced.
6. And, of course, if the belt position deviates from the specified one, then this will tell you about a situation where the components of the tensioner may fail.

Timing belt removed for inspection, still looks like, but the owner decided to replace it

In this case, the belt is still in good condition.

The consequences of a broken timing belt

4 valves bent after timing belt break

As we have already said, only one motor should not have significant problems after a timing belt break - 11183-50 . But for other models, significant breakdowns are possible, which will result in significant financial investments! On our site, a battle has unfolded among the Grant Owners about whether we are interested in your opinion.

The fact is that when the belt breaks, the camshaft stops at the position in which it was at that moment. But the crankshaft continues its movement. As a result, the pistons hit the valves that were currently open with great force. The valves are bent from this impact, and in rare cases the piston may even be pierced, although this is very rare. This situation is popularly called the "fist of friendship"!

conclusions

Of course, breaking the timing belt on a Lada Grant can bring a lot of problems.

But that doesn't mean that we can't do anything. There are some recommendations that will help you reduce the risk of such a breakdown to a minimum.

The first step is to carefully check the condition of the belt. Some recommend checking the condition of 10 or 20 thousand kilometers. Also try to keep track of the condition of the seals. It is not even necessary to look under the hood, because when they wear out, characteristic spots will appear on the pavement.

The flashing of an emergency lamp will also tell you about problems, which indicates problems with pressure and oil level. If this happens, then the engine must be immediately turned off, and the reason for this “behavior” of the machine must be found.

When replacing the timing belt, only original spare parts must be used. But even branded details will need to be constantly monitored.