After how many years should I change the timing belt on a Priora?

The timing belt on a Priora is a mechanical connection that controls gas distribution in an internal combustion engine. It consists of camshafts, mechanical drives to them, transmission elements such as rods, pushers, rocker arms, valves that close and open holes in the combustion chambers, adjusting elements, valve rotation systems, belts, etc. The camshaft drive causes it to rotate at an angular velocity, which is defined as half the angular velocity of the crankshaft itself. Before deciding when to change the timing belt on a Priora, it is worth familiarizing yourself with how this mechanism works and what are the features of its operation.

How to choose a belt for Priora?

In order for the gas distribution mechanism to work reliably on the 16-valve Lada Priora 21126 engine with or without air conditioning, you must choose the right product. You can purchase a factory version; according to owners’ reviews, it is considered the best for VAZ cars. Below we will analyze the types of timing belts by size, markings and prices.

Timing belt size for Priora

For Lada Priora cars, the length and overall size of the strap depends on the number of teeth installed on it. You can accurately determine which timing belt is installed in your car by identifying the engine modification and reading the user's service manual. Or you can remove the old belt and measure its size to purchase a new one.

Straps that can be used in Prioras:

Company and prices

The brand of the company plays an important role. When deciding which timing belt for Priora 16 cl. It’s better to choose, most consumers prefer the originals.

Below is a list of timing belts for the VAZ Priora with their cost:

The “techno-056” channel provided a video that describes all the differences between original Gates timing belts and fakes.

About the belt PRIOR, KALINA, GRANTS

Okay, with foreign cars we understand that if you install original belts, you can ride for at least 100,000 km, but what about our cars?

Everything is not so charming here. The belts on our VAZs also last a long time, but the rollers are just some kind of scourge, personally, on a working VAZ 2111, we changed the timing belt - probably every 30,000, the rollers didn’t run anymore, they just “stuck”! True, they took “non-originals”, after the last time we stopped by the VAZ dealer, he installed his own belt, which is installed on the conveyor belt (his words). It ran for about 45,000 kilometers, but then I quit my job and don’t know the future of the car.

I asked the same guy at the station a question - in general, for our cars, what is the timing life? And this is what he answered me:

The manufacturer assures that 100 – 120,000, supposedly they want to catch up with foreign cars, BUT! IN practice this is not the case, I would personally recommend changing it every 60 - 70,000 km! And install ONLY ORIGINAL SPARE PARTS! Because there are simply a lot of raw spare parts on the Russian market.

And you know, I believe him - I would generally change it after 50,000 if I had a PRIORA. Damn, can’t they really make sane belts and rollers! The question hangs... But it needs to be changed, otherwise there will be a break, and what they say is “you’ll get caught” !

What are the consequences of untimely replacement?

Questionable savings on the purchase of consumables for the timing mechanism can lead to significant costs for the restoration of the power unit. On the Lada Priora, the cylinder head has 16 valves, 4 for each working cylinder. If for some reason there is a mismatch in the operation of the timing belt and the crank mechanism, there will inevitably be a “meeting” of pistons and valves. In the best case, you will have to replace the damaged valve, but there can be more significant damage to the engine.

Check and replace worn timing drive parts in a timely manner; the machine will delight you for a long time with the flawless operation of the power unit.

Lada Priora: timing belt, checking and tightening it

So, it has already been said above that if the timing belt breaks on a Priora, this leads to valve bending. It is quite obvious that it is better to check the condition of the belt often (every 40 thousand km). Let’s also add that if we consider when the timing belt is changed, this element, taking into account the features of its design and operation, should be replaced every 60 thousand km.

Experienced specialists even recommend checking the belt every 25 thousand km, and it is better to change belts every 50 thousand km. mileage or after 4 years of operation (whichever comes first). And this applies not only to Priora, but also to other cars with a timing belt drive.

New Lada: Priora head unit: solving the problem of selection and installation

Let's move on. You need to check the condition of the belt, as well as its tension, on a cold engine. Heating is allowed no higher than 35 degrees Celsius.

If the car is equipped with air conditioning, then you need to remove the drive belt and tension roller;
Then you should install the engine mount by slightly tightening the screws securing the mount itself. Next, use a wrench to unscrew the 5 screws securing the front upper timing cover.
The cover can now be removed. To inspect the timing belt, the crankshaft should be turned clockwise. To do this, you need to engage 5th gear and push the car forward. You can also lift the car by hanging the front wheel and rotating it clockwise.
The surface of the belt, especially its toothed part, should not be cracked, the teeth should be intact, without creases or other defects, the rubber should be solid, without delamination to the cord, etc. Also, the belt should not show signs of friction or overheating.
The end parts should also be carefully inspected to ensure that delamination and damage are not allowed. Also, the belt should not diverge too much along the marks. If so, then the timing belt is too stretched.
There should also be no traces of engine oil on the timing belt. Even if the belt is visually in good condition, it is important to understand that oil corrodes the rubber. For this reason, an oily belt should be replaced.

One way or another, detection of defects will require replacing the timing belt. Moreover, if you can see oil on the belt (you need to understand for sure that it is oil and not antifreeze), you first need to determine where it is coming from, eliminate the cause, and only then install a new timing belt.

It is also necessary to check the belt tension. To do this, you need to take into account that on a Priora car the timing marks are applied to the camshaft pulleys. To check, rotate the crankshaft clockwise until the marks on the camshaft pulleys align with the cutouts on the rear timing cover. If the pulleys were accidentally turned further than necessary, you will need to turn the crankshaft 2 turns.

If the timing belt is normally tensioned, the rectangular protrusion of the inner bushing of the tension roller coincides with the cutout of its outer race. If the belt itself is in order, and the indicated marks do not coincide slightly (more than ½ of the total width of the protrusion), then you need to adjust the timing belt tension. To solve this problem, it is necessary to locate the Priora timing tension pulley.

First, use a 15mm wrench to loosen the bolt securing the tension roller. In the case when the belt is loose, it is necessary to ensure precise alignment of the cutout of the outer race of the roller with the rectangular protrusion of the inner sleeve of the roller. Then use a 15mm wrench to tighten the tension roller bolt. The tightening torque is from 20 to 25 Newtons.

In fact, to tighten the belt, the tension pulley must be turned counterclockwise. If the belt needs to be loosened, then the roller is turned clockwise.

To do this, a special key is inserted into the grooves of the outer race of the roller (resembles two rods attached to the base). Next, the belt can be tensioned until the cutout of the outer race coincides with the rectangular protrusion of the inner sleeve. The end will be tightening the roller mounting bolt (tightening torque 34–41 Nm.).

New Lada: Buy additional equipment and tuning for LADA PRIORA in the online store AvtoStolitsa63

Please note that if the timing belt is overtightened, this will shorten its service life, as well as the life of the pump, tension roller and guide roller. If the timing belt is not tensioned sufficiently, this also reduces its service life and can also cause a shift in valve timing.

At a minimum, the engine will run unstably, and if the timing belt jumps, it will bend the valves. If, after adjusting the tension, the marks do not match, the procedure must be repeated. If the tension cannot be adjusted, the timing belt should be replaced.

How often should I change

In the service manual, the manufacturer indicated that the service life of the product is 200 thousand kilometers. However, there have been cases where the product needed to be replaced after 20 thousand km or even earlier. Practice shows how many kilometers a factory strap can actually withstand: on average, this figure ranges from 120-150 thousand km.

User Ivan Bolutov spoke about the choice of original timing belts for the Lada Priora.

We recommend that you familiarize yourself with the signs that indicate the need to change the product:

When does a belt need to be replaced on a Priora: possible consequences

It is recommended to replace the timing belt every 30 - 45 thousand kilometers. Of course, the probability of a belt breaking with such a mileage is very low, but the indicated mileage is the resource of the product. There are many cases where motorists clock twice the mileage indicated above on the tachometer, and have never changed the belt. The serviceability of the product in question is measured not only by its integrity. During operation, it stretches, therefore the quality of engagement decreases and the likelihood of slipping increases.

Timing belt with worn teeth: what can happen if the product is not replaced in a timely manner

This is interesting! The service life of the timing belt is influenced by various factors: the nature of the ride, the quality of the product, the ingress of foreign liquids and objects onto the belt drive, etc. It is impossible to indicate the exact mileage that a timing belt will last. To avoid having to go to a service station for major repairs, it is recommended to monitor the operating time of the product on a car such as the Priora.

Signs that the timing belt on a Priora needs to be replaced are the following factors:

presence of extraneous noise when the engine is running;
changing the color of exhaust gases;
problems when starting the engine;
extraneous vibration.

Manufacturer's terms

The vehicle operating instructions recommend replacing the timing belt, tension roller, and pump after 200 thousand kilometers.

How long it actually takes to replace it depends on many factors. If the car drives most of the time on country highways without traffic jams, sudden acceleration and braking, the belt can last 200 thousand kilometers. Aggressive driving style, traffic jams, poor-quality consumables and maintenance reduce the actual service life of the timing belt.

Experienced owners of this model and repairmen recommend replacing it after 50–60 thousand kilometers. You need to check the condition of the timing mechanism parts every 10–15 thousand km.

Particular attention should be paid not only to the tension of the timing belt in the timing drive, but also to the condition of its teeth. It is their cutting that causes breakdowns followed by expensive repairs.

Belt

This part in the timing mechanism drive transmits rotation from the crankshaft, two camshafts, and the coolant pump. The loads on the belt are large; high demands are placed on the quality of the material for its manufacture. It is quite difficult to break the body of the belt; most often its teeth are cut off.

How long does it take to change the timing belt?

According to the Lada Priora maintenance regulations, the condition of the timing belt should be checked after 105 thousand km, and replaced after 200 thousand km. However, sheared teeth or a broken timing belt can cause the valves to stick (valve bending) into the pistons, leading to costly engine repairs. Therefore, we recommend checking the condition of the timing belt more often - every 45 thousand km.
On Lada Granta and Lada Kalina 2 cars, the timing belt is checked every maintenance (every 15,000 km), and replacement is carried out after 75 thousand km. mileage

How to properly replace a timing belt

To prevent the drive belt from breaking and repairs, it is necessary to promptly replace and tighten the product. Work on replacing and adjusting tension should only be carried out on a cold engine.

Tools

What you will need to complete the task:

Channel In Sandro's garage, I made a video showing the procedure for replacing the timing belt on a 16-valve Priora engine.

Instructions with pictures

Below is a detailed description with photos of how to install a new belt and correctly align it with the marks:

1. Dismantle the timing belt protective cover 2. Install cylinder 1 in accordance with the marks 3. Unscrew the tensioning devices with a wrench 4. Tension the rollers using a special wrench

Tension check

How to check the correct tension of the strap after replacing it yourself:

Replacing the timing belt without special tools

The method can be used if there is no need to change the rollers.

Cut off half of the old timing belt with a utility knife.
Remove half of the old timing belt.
We put a new timing belt on the crankshaft pulleys.
We cut the second half of the old timing belt and remove it.
Pull the new timing belt onto the crankshaft pulleys until the end.

By the way, according to the survey results, replacing the timing belt on an 8-valve engine is easier than on a 16-valve engine.

Russian-made cars of the VAZ-2170 or Lada Priora brand have received recognition from many motorists. This is due not only to the modern design of this car, but also to the fact that the vehicle is equipped with a type 21126 engine. This is a 16-cylinder engine with a volume of 1.6 liters and a power of 106 hp. Along with the advantages, the Priora has a disadvantage, which manifests itself when the timing belt breaks. If the timing belt is not replaced in a timely manner, then when it breaks, the valves will bend. To prevent this from happening, the timing belt on a Priora 16 valve must be replaced in a timely manner, which can be done with your own hands. This procedure is not complicated, and each owner will be able to perform it independently, having understood some of the nuances.

Visual inspection

To be confident in the reliability of your car, you must carefully carry out all maintenance work, which also includes periodically checking the condition and tension of the timing belt. This must be done on a cold engine. To check, you will have to remove the plastic drive protection. On cars with air conditioning, you will have to remove the belt. The timing drive must be rotated and simultaneously inspect both the outer and inner sides of the timing belt.

The slightest peeling, cracks, and stains of technical fluids are not allowed. If they are detected, the faulty part is replaced. The drive tension is controlled by the tension roller. To do this, align the marks on the pulleys of both camshafts with the bosses of the rear drive casing. When the tension is correct, the cutouts on the race and the tension roller bearing sleeve should match. Otherwise, it is necessary to adjust the drive tension. The drive should not be loosened or overtightened, as this may accelerate its failure.

How to replace the Priora timing belt

So, having selected a suitable timing belt for the Priora (regardless of the manufacturer, it is important to select a 16-valve Priora timing belt), you can begin the replacement procedure. The width of the belt should be 22 mm, the number of teeth is 137.

After removing the timing cover, you must first align the timing belt itself. To do this, the crankshaft and camshafts are placed at TDC on the compression stroke of the first cylinder.

To rotate the crankshaft, use a 17mm wrench to turn the bolt securing the auxiliary drive pulley clockwise until the marks on the camshaft toothed pulleys align with the marks on the rear drive cover.

Also, to check the position of the crankshaft, you need to remove the plug from the rubber (it is located on top of the clutch housing). The mark on the flywheel should be opposite the slot in the upper cover of the clutch housing.

Then you need to fix the crankshaft. To do this, when unscrewing the bolt securing the drive pulley of the mounted units, you should invite an assistant to engage 5th gear and press the brake.

Now the pulley can be removed, and the washer is removed in parallel. To make it easier to put everything back together, the camshaft pulleys can be fixed in relation to each other before removing the belt. Pre-prepared wooden pegs are suitable for this.

New Lada: History of the Lada Priora model. Replace the “ten”, or the history of the Lada Priora (Lada Priora)

Wooden wedges can be lightly driven between the teeth of the pulleys. Then use a 15mm wrench to loosen the bolt securing the timing belt tension roller. The roller will turn, the belt tension will be small, which will allow it to be removed from the camshafts. The belt can now be removed from the pump and crankshaft pulleys.

It is important to ensure that after removing the belt, the crankshaft and camshafts no longer rotate, as the pistons and valves may accidentally collide!

As for replacing the timing belt, first change the tension roller, then the support roller. The rollers are removed along with the bolt and thrust washers. At the same time, you need to check the condition of the pump. It is important that there are no leaks of antifreeze, the pump shaft should rotate easily, there should be no backlash, etc. If the pump is not in order, it also needs to be replaced.

By the way, before installing new timing belt rollers on the Priora, the threads of the mounting bolts should be coated with a special fixing sealant. Also, the support roller mounting bolt can be immediately tightened (torque 34–41 Nm), while the tension roller mounting bolt should not be fully tightened at this stage.

Video “How to correctly change the timing belt on a Priora”

User Sergei Tsapyuk made and published a video in which the procedure for replacing the timing belt in a VAZ Priora car was demonstrated in detail.

Do you have any questions? Specialists and readers of the AUTODVIG website will help you ask a question

Was this article helpful?

Thank you for your opinion!

The article was useful. Please share the information with your friends.

Please write what is wrong and leave recommendations on the article

Rate this article: ( 5 votes, average: 4.80 out of 5)

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.

Why install a belt or the advantages of the mechanism

This node has plenty of advantages, despite the “screams” of opponents, let’s list them:

Silence of work. This is probably the biggest plus - with a belt drive, the engine runs quieter than an iron opponent. Maybe not by much, but the effect is, as they say, “noticeable”, or rather audible!

Price. Belt drive is two to three times cheaper than a similar metal structure. This affects both initial production (in factories) and final consumption (the owner). Even if you change the belt every 70,000 kilometers, it will still be cheaper than changing the chain once every 250,000 kilometers.
Space saving. It was a surprise to myself, but engines with a chain mechanism are about 10% larger than engines with a belt drive! Why? YES, everything is simple - the chain drive is inside in oil, and accordingly you need to make a valve cover, block, pan, etc. – more massive to close it inside. Here's to a larger engine! Of course, now they’ll say, “Didn’t you forget about the belt?” After all, it also has a casing in front? No, I didn’t forget, but the casing is usually smaller in size.
Oil quality. Everyone knows that chain transmission is very demanding on the quality of engine oil; the service life due to poor quality lubrication can be reduced by 20 - 30%, which you know is significant! Therefore, it is advisable to change the oil every 10 - 12,000 kilometers. The timing belt in this regard is simpler; it doesn’t care about oil at all, it spins in the air and doesn’t come into contact with this lubricant in any way.
Easy maintenance. Needless to say, the belt is much simpler and, let me emphasize again, cheaper to replace. There is no need to go into the engine and disassemble it, drain the oil, etc.
Well, and probably the last thing - the belt is easier to tighten, you can at least tie it in a knot. You can’t do this to an opponent, that’s why the “tensioners” for the chain are unique.

Maybe I forgot something, but as you can see, there are quite a lot of advantages, despite the fact that many “dislike” it.

When to change: consequences of untimely change

It is recommended to replace the timing belt on a Priora after different periods of time. The manufacturer claims that it can withstand one hundred thousand mileage, but experience shows that a change may be needed much earlier.

The optimal period is every fifty thousand kilometers. Some argue that over such a short service life, rubber is simply not capable of failure. However, no one takes into account the conditions - roads, fuel quality, etc.

Also, during the operation of the mechanisms, it wears out, the rubber stretches, and therefore does not provide the correct tension of the timing belt, and slippage is possible. The teeth can wear off - because of this, traction with the gears is not ensured.

There is no exact time for a change that would suit all motorists. Some take good care of their vehicles, drive carefully, and use only high-quality fuel. Others use a more extreme type of driving, foreign liquids get on the rubber, etc.

In order not to lose your car during the repair period and not to spend a fortune on restoring the mechanics, write down or remember the date of the last timing belt change on the Priora. Next, regularly check the condition of the rubber; if worn, replace it with a new device.

Signs of possible failure

There are several characteristic signs that should alert the driver:

Pay attention to these “symptoms”, even if the Priora’s mileage with a new timing belt has not yet reached 50 thousand km. It may fail earlier if foreign liquid gets onto the drive - oil, coolant, as well as dust or dirt.

It’s worse if it’s the coolant that gets onto the drive. Firstly, this means that the gasket that ensures the pump is sealed has failed, or there is a problem with the pump. Then the rubber is damaged and service life is reduced tenfold.

Even if the belt is new, but coolant or antifreeze gets on it, it will fail even after operating for 10 thousand miles. You will have to replace the Priora timing belt and figure out why foreign substances get on it.

How to check the serviceability of the belt yourself

If you suspect that it is time to replace the Priora timing belt, it would not hurt to check the serviceability of this rubber product. Visual diagnostics will allow you to check the serviceability and absence of scuffs on the Priora timing belt.

When to change the timing belt on a Grant 1.6 l 16 cl. (VAZ-21127 engine)

The camshaft drive belt on the Lada Granta with the VAZ 21127 engine does not have a certain specified mileage. This means that it must be constantly monitored despite the automatic tensioner being installed.

We check the condition of the timing belt at least once every 10-12 thousand km.

As a rule, original factory belts wear out by the 60th thousand mileage, and at 80,000 km they absolutely require replacement. In order not to miss this moment, we must take into account that the main indications for replacing the timing belt on a Grant with a VAZ 21127 engine are:

antifreeze and other operating fluids get on the belt, but before installation it is necessary to find out the reason for their appearance; timing belt delamination; end wear of the belt, which is very dangerous; cracks on the surface; cutting of teeth; chipping and other external damage to rubber material and reinforcement.

In short, it’s better not to let it break, just as it’s better not to let the camshaft rotate relative to the crankshaft. And this can also threaten both interruptions in the operation of the engine and its complete failure. Depends on how much the timing phases are out of order.

How to check tension

At the end of the work, it is necessary to adjust the tension of the timing belt drive on the Priora. The adjustment is made as follows:

Using a special wrench, you need to turn the tensioner pulley counterclockwise.

Tensioner adjustment key

You can check the tension by applying force to a rubber product weighing 10 kg. The deviation value should not exceed 5-7 mm.

When tightening the pulley and roller bolts, it is recommended to use a torque wrench. The tightening torque for each element is equal to the following values:

After adjustment, you can put the protective cover back in place. Finally, the generator belt tensioner roller is installed, as well as the belt itself. It is also recommended to replace these elements with new ones. Finally, do not forget to fill the coolant before starting the engine.

Upon completion of the work done, you can start the engine and check its operation. If the marks are correctly set, the engine will start the first time the key is turned in the ignition switch. In this case, the engine should operate evenly and keep the speed in the region of 800-900 rpm. Listen to the timing belt drive. There should be no extraneous sounds or noises. The presence of a whistle or hum indicates that the tensioner is too tight and needs to be loosened.

Source

Visual inspection and work procedure

How to check a belt for rupture if the car “knocks” during a trip? To do this, some car enthusiasts just need to unscrew the timing cover and visually assess the condition of the part. And this is the easiest way for the Priora series, while some foreign cars are already equipped with detectors for such a breakdown, located right in the car’s interior. It is interesting to note that both domestic and foreign cars are susceptible to belt breaks on Russian roads, often regardless of their mileage.

How to install a new timing belt on a domestic Priora car? To do this, first of all you will need:

Remove the fastening screws from the front top cover using a “5” hexagon;
Remove the mudguard from the engine compartment;
Using the socket at “17”, turn the crankshaft clockwise (by the bolt from the drive pulley leading to the generator). Inspect the timing belt for damage or contamination;
Unscrew the pair of screws that secure the lower cover from the timing drive using a hexagon to “5”;

New spare part

Remove the cover and the generator drive belt;
How to avoid violation of the gas distribution order? To do this, you need to put both the crankshaft and the gas distribution shaft in the top dead center position for the compression stroke of the first cylinder (turn the crankshaft by the pulley mounting bolt clockwise until the marks on the pulleys align with the marks on the rear cover from the timing drive);
To check the position of the crankshaft, you need to remove the rubber plug located in the upper part of the clutch housing (at the same time, the coolant temperature sensors, the wiring harness from the sensors, and the cooling system hose must be disconnected). After this, it’s worth looking at how the mark is located on the “one” flywheel. It must be placed so that it is opposite the second slot on the top cover of the clutch housing on the Priora.
What action should be taken next so as not to disrupt the valve timing again when the bolt is unscrewed from the fastening on the pulley at the generator drive? In this case, you will need an assistant to fix the flywheel by placing a large-diameter slot-type screwdriver through the hole in the clutch housing and into the flywheel teeth.
Next, you need to remove the generator drive pulley, having first loosened the fastening bolt and its support washer.
Using a spanner or a 15mm socket, you need to loosen the fastening bolt from the tension roller of the belt itself (the roller turns - the tension weakens).

Replacing the timing belt on a Lada Priora - when to change it and should you focus on mileage?

Replacing the timing belt is carried out on DOHC engines, which are installed on Prioras, as a rule, performed after 60 thousand km. mileage Despite the fact that the manufacturer recommends changing the belt closer to 200 thousand.

There are those who don’t wait and change the belt every 40-50 thousand, but where is the truth and when should you actually replace it? Let's figure it out.

Synchronization of the intake and exhaust processes is realized using a belt drive. The belt itself is a toothed, dense ring consisting of several layers of rubber and nylon. The specification and compatibility of the belt is indicated on its sidewall, in this case the width is 22 mm, the number of teeth is 137. When buying a timing belt, you should be attentive to the quality of the product; it should not have defects such as scuffing, roughness, cracks and irregularities.

The timing belt on a Priora combines many components, bending around drive rollers and pulleys. So this belt is related to the coolant pump pulley, the camshaft pulleys that lift the valves, has one guide roller, and the degree of tension is regulated by a special tension roller. To install the belt, you must follow certain rules and take into account special marks located on the belt, crankshaft pulley, oil pump, and camshafts. From the Priora factory, they receive sets of timing belts and rollers manufactured by Gates; there seem to be no questions about the belts, but the plastic rollers are considered the “Achilles heel” of these sets. Those who have had bitter experience of using such belts and rollers strongly recommend replacing them early and checking their condition regularly.

Timing belt and its purpose

The timing belt is a rubber product that has a toothed surface on the inside. Durable types of rubber are used to make this belt. The product is put on the crankshaft and camshaft gears, which allows you to synchronize the operation of these mechanisms. With its help, fuel is supplied to the engine cylinders in a timely manner.

The teeth on the belt are designed to ensure reliable adhesion to the gears and prevent slipping. Priora is equipped with belts that have 137 teeth. If the belt breaks, the car will not be able to continue moving due to incorrect operation of the engine. That is why the regulations state that this element must be replaced every 30-45 thousand kilometers.

This is interesting! If it is noticed that the timing belt shows signs of wear or damage, but the mileage has not yet reached the specified value, then it is definitely necessary to replace it. This is especially important to do on a VAZ-2170 or Priora car, since in the event of a break, the valves fail.

The timing belt not only connects the crankshaft to the camshaft, but also drives the water pump. Despite the fact that the device is a “piece of rubber”, its importance in the design of the engine of any car is priceless.

Why is this so important?

I think it’s no secret to anyone what happens when the timing belt breaks, but perhaps there are those who are not in the know. In the event of a break, the synchronization of the operation of the cylinder-piston group and valves is disrupted. The pistons begin to move towards the valves, which are no longer controlled by the belt; as a result, the pistons “meet” the valves. After such a “meeting,” the pistons are destroyed, the valves are bent, and in general you end up with a major engine overhaul. Could this have been avoided? It is possible, of course, if the manufacturer of this engine thought about this at the design stage, completely eliminating such a phenomenon. By the way, there are quite a few “plug-in” engines in the world that, after a broken belt, do not need to be “overhauled”; you just need to get to a service station and replace the timing belt. In such engines, when the valve belt breaks, the valves do not meet the pistons.

The belt and rollers must be replaced immediately if, during inspection, you find:

Separately, I would like to note the appearance of vibration and black exhaust; such symptoms, of course, can occur under other circumstances, but this option should also be considered.

Consider exclusively mileage in the question: “Is it time to change the timing belt or not?” - this is mistake. Firstly, even with low mileage, problems can arise with the belt or rollers. And secondly, there are many situations when you practically or completely do not move, while the motor is running, therefore, the belt wears out. For example, if the car is used mainly in the city, the mileage may be low, but the life of the belt itself will be at its limit, since in traffic jams the engine is running, but there is practically no movement.

There are other factors that can cause a belt to fail prematurely. For example, if oil, fuel, dirt or sand gets on it. Small particles of sand eat into the surface of the belt, destroying its surface; oil and other petroleum products soften it, reducing its strength and shortening its service life.

Be sure to watch this video: TOP 6 signs of timing belt wear

Finally.

To summarize the above, I would like to give some practical advice that will allow you to avoid timing belt rupture and, as a consequence, major repairs.

That's all for me, write in the comments when you prefer to replace and how you monitor the condition of the above-mentioned elements.

Source

What mileage should the car have to replace the belt?

Replacing the motor belt

It is necessary to change the belt, according to AvtoVAZ itself, when the Priora has a mileage of about 200,000 kilometers, however, it is believed that during short drives around the city this element wears out faster, therefore, according to surveys, some people change it already at 40,000 kilometers, while others only at 60 thousand mileage. This part needs to be inspected every 50 thousand kilometers. The first signs that the timing belt needs to be replaced are the following:

extraneous noise when the engine is running;
difficulties when starting a Priora car;
the engine has very strong vibration (to the point of trembling throughout the entire body);
exhaust fumes are blacker than usual.

A low mileage of a car cannot always guarantee that a situation has not arisen where the belt needs to be changed. Very often, the belt drive wears out prematurely due to the fact that oil penetrates through the seals; cracks in the casing allow dirt to penetrate. These components quickly destroy the rubber of the belt, because it peels off from the cord, and dust mixed with oil gives a destructive abrasive effect. Here you need to eliminate the causes of oil leakage and visually inspect the part itself. It is believed that minor dirt can be removed with wiping paper or a rag (if there are no breaks), and it will still be a long time before it is really necessary to change the belt.

The belt must be replaced in a timely manner, without waiting for it to break, since the latter is very fraught in terms of engine repair costs (from 10-12 thousand rubles). This is due to the fact that the pistons in Priora engines do not have recesses for the valves, as was the case on the VAZ 2110, therefore, if the timing belt breaks, there is a high probability that the pistons will “meet” the valves, with the latter bending.

At high speeds, problems with the strength of the belt on the Priora can cause the pistons themselves to break and even bend the connecting rods. It would be good if there were no accidents.

Removing the timing belt

You will need : a 5-point hexagon, a 17-point, 15-point, 10-point socket and a large flat-head screwdriver.

Procedure:

In order not to disturb the valve timing, it is necessary to set the crankshaft and camshaft to the TDC (top dead center) position of the compression stroke of the 1st cylinder. For this:

We fix the flywheel by inserting a screwdriver between the flywheel teeth through the hole in the clutch housing. Then:

After removing the timing belt, the crankshaft and camshaft cannot be turned. When replacing a timing belt, the tensioner and support rollers of the belt also change.

Replacing rollers and timing belt: step-by-step steps

Initially, it should be noted that owners of a Lada Priora car with air conditioning will need to perform some steps to get to the timing mechanism. If you have a Priora with air conditioning, then initially you need:

Using a wrench with a 15mm head, unscrew the generator tensioner pulley (not to be confused with the timing belt tensioner pulley). If the roller is humming, it is also recommended to replace it.
After this, remove the alternator belt, which is also recommended to be replaced simultaneously with the timing belt drive.
Now you will have access to the protective covers of the gas distribution mechanism.

Replacing the timing belt on a Priora 16 valves with your own hands is done by performing the following steps:

Using a hexagon or T-30 bit in the shape of an asterisk, you need to unscrew 5 bolts securing the upper cover (plastic casing) and 2 bolts of the lower timing cover.
The crankshaft sensor is disconnected by disconnecting the corresponding chip near the upper timing cover.
Place a jack under the wheel on the passenger side, then lift the car and hang the wheel. This must be done in order to be able to align the marks of the camshaft pulleys. This procedure can also be performed by rotating the crankshaft pulley with a key to “17”. The photo below shows marks 1 on the mechanism body, as well as marks 2 on the camshaft pulleys. They must be combined by rotating the wheel with 5th gear engaged. If you do not plan to change the pump, then there is no need to loosen the camshaft pulleys after setting the marks.

Aligning the camshaft marks

Mark on the flywheel

Removing the crankshaft pulley

Removing the tensioner and thrust rollers

Removing the timing belt

Location of the inner timing cover bolts

We proceed to the procedure for adjusting the tension of the belt drive.

Installing the timing belt

Before installing the rollers, apply thread sealant to the threaded part. We do not completely tighten the tension roller bolt. Before installing the timing belt, check the alignment of the timing marks. It is convenient to control the position of the crankshaft by aligning mark 1 on the crankshaft toothed pulley with mark 2 (rib) on the oil pump cover.

We put the timing belt on the crankshaft pulley, tensioning both branches of the belt, we put the front branch behind the support roller, and the rear branch, putting it on the coolant pump pulley, behind the tension roller. Then we put the timing belt on the camshaft pulleys.

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.

If one of the rollers stands up, the belt wears out, within some 100–200 km of travel, or maybe even less.

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.