In which direction should the Priora generator belt roller be tensioned?

How to adjust the generator roller on a Priora with your own hands

The generator belt tensioner roller is a small but very important part of the machine. If it fails, the operation of attachments and electrics is at risk. But you can diagnose, lubricate and even change a spare part yourself; it does not require much effort or serious knowledge in the automotive industry.

On Lada Prioras with air conditioning and power steering, as well as those equipped with power steering (electric or hydraulic power steering), the alternator belt is additionally maintained in an optimally tensioned state by a special roller. The Priora generator belt tension roller is an important part that ensures the operation of the attachment.

Replacing the drive belt with the air conditioner installed

Communities Lada Priora Lada Priora Club Blog voltage on mass air flow sensor

As already mentioned, the main difficulty lies in the location of the drive of the Priora’s additional mechanisms. The fact that it goes around the engine mount in a closed quadrangle creates serious problems during replacement. Of course, removing the rubberized strap is no problem. But installing a new one in this place is a rather complicated process.

Tools and accessories

In this case, much more tools and devices will be needed for replacement. It is best to have a full set of professional auto mechanic tools on hand. On a Priora with air conditioning or hydraulic power steering, the tension of the generator drive and other mechanisms is carried out by displacing a special eccentric roller - the tensioner roller. A special key is also required to adjust it. When replacing the belt, you will have to lift the entire engine so that it comes out of the front mounting stud of the engine mount. Therefore, it is necessary either to have a professional car mechanic jack on hand, or to work in a room equipped with special hoists for removing the motor or, in extreme cases, with a hydraulic or electric lift.

Where is the Priora generator roller located?

The tension roller of the Lada Priora generator belt is used to hold the auxiliary drive belt on the pulleys of the drive device; it is responsible for a tight fit and preventing slipping.

The drive belt in a Priora with 8 or 16 valves is located under the hood on the right side of the engine (along the direction of the car). If you look directly at the assembly, the bypass roller will be located on the top left, it is clearly visible. This is noticeable in numerous photos of the Priora’s engine compartment available on the Internet, and in videos with instructions for repair and replacement.

The part is of an eccentric type and is visually distinguishable due to the off-center bolt.

Which generator roller is better to install on the Priora?

Of the good non-original “prior guides” note:

Hofer (HF code 608230);
Gates (T39176);
Lynx (PB-5039);
Trialli (CM170);
Marel (2110).

Alternator belt roller. Photo source: https://www.drive2.ru/l/513749832809054967

Less common are accessories from INA and Andycar. Among the inexpensive and fairly popular options for replacing the tension roller of a Lada Priora generator belt with air conditioning or power steering, we can highlight the products of the Vologda Bearing Plant - the VBF roller (catalog number 830900AKE). But reviews from car owners indicate the “floating” quality of VBF parts, and their purchase should be approached with caution. Many people advise installing Gates spare parts.

There are also drive belt repair kits supplied with this part, for example, Trialli GD613.

Signs of tensioner failure

The following symptoms indicate poor adjustment or failure of the unit:

whistling, increased noise, rustling from the generator unit (extraneous sounds are not necessarily associated with the tensioner, but may indicate its misadjustment or malfunction);
hum and buzzing that occurs when the belt roller bearing of the Priora generator wears out;
vibration of the roller and belt, indicating a worn bushing;
too much belt deflection (more than 8 cm) or excessive tension (less than 0.6 cm) - if detected, adjustment must be made;
the fastening bolt begins to heat up;
backlash in the tension roller (this, like the hum, indicates a worn bearing);
uneven wear and stretching of the belt on one side (as a rule, this sign indicates a bend in the tensioner bracket).

Why does the generator roller whistle and make noise?

The whistling noise may not be related to a malfunction. For example, sometimes the unit begins to make noise and hum in humid weather when moisture gets on it and the pulleys. After warming up and drying, the symptoms stop.

But if the car starts to whistle, squeak and rustle “when cold” and constantly, this may indicate:

thickened tension roller lubricant or its deficiency;
sagging or excessive belt tension, as well as its wear;
slipping of the drive belt due to oil getting on the surface;
Tension roller malfunction;
misalignment of pulleys.

Replacing the alternator belt roller on a Priora. Photo source: https://www.drive2.ru/l/513749832809054967

The first thing to check is the tensioner eccentric roller and belt tension.

The importance of tension level and checking it

Let's consider what unpleasant consequences an incorrect level of tension will lead to. If it is weakened, then there is a high probability of slippage . That is, the generator drive will not operate at rated speed, which in turn will lead to the level of voltage generated by it being below normal. The result is an insufficient level of battery charging, insufficient electricity to power the vehicle systems, and operation of the electrical system under increased load. In addition, when slipping, the temperature of the belt itself increases significantly, that is, it overheats, which is why it loses its service life and may fail prematurely .

If the belt is too tight, this can also lead to excessive wear on the belt itself . And in the worst case, even to its breakage. Also, excessive tension has a detrimental effect on the bearings of the crankshaft and generator shaft, because they have to work under conditions of increased mechanical load. This leads to excessive wear and speeds up their failure.

How and with what to lubricate

If the check reveals a lack of lubricant, it can be changed. You can use Litol-24.

To lubricate the tension roller of the Priora 16 class generator, you should:

Dismantle it.
Remove the anthers.
Wash the tensioner to remove any remaining old grease (this will also help to visually check the condition of the bearings).
Apply a layer of Litol.
Reinstall the anthers, mount the eccentric roller and check the tension.

In addition to Litol, the CRC lithium-based consistency demonstrates good qualities. It is resistant to high temperatures and rotation speeds. Chevron Delo Grease EP NLGI 2 has similar properties; the authors of repair video guides often recommend lubricating the mechanism with it.

It is important not to apply too much lubricant, otherwise it will begin to squeeze out onto the belt.

How to tension a roller

After replacement or dismantling and subsequent return to place, the roller must be adjusted for proper operation of the drive mechanism. To work you will need tools:

Size key
Special key for tightening. It is a structure welded to the base in the form of a pair of rods with a gap of 18 mm between them (similar to a key for an angle grinder). The rods are designed for insertion into technological holes on the roller.

How should the belt be tensioned?

The eccentric roller retaining bolt must be loosened.
Clamp the roller cage and turn the part counterclockwise or clockwise with the adjuster key, increasing/decreasing the belt tension. At the longest section between the pulleys and the shaft, it should bend by about 6 mm.

When the desired result is achieved, the fastening is finally tightened.

Sn9shimo

The belt should not rotate more than 90°. Otherwise, the belt tension needs to be adjusted. To tighten the belt, turn the tension roller counterclockwise, and to loosen it, turn it clockwise. To do this, insert a special key into the holes of the tension roller in the form of two rods with a diameter of 4 mm, welded to the base of the key (the distance between the rods is 18 mm). You can use the key for the old-style timing belt tension roller, installed on all front-wheel drive VAZ cars. If you do not have a special key, you can insert two pins (screws) with a diameter of 4 mm into the holes of the tension roller. Using the screwdriver shaft located between the pins, turn the roller.

How to change the generator roller on a Priora

The part cannot be repaired, only lubricated if its technical condition allows. If there is a malfunction, the spare part is replaced. Let's look at how to change the roller of a Priora generator with air conditioning.

To replace the Priora generator roller, you need a 17 mm wrench and a tension wrench.

Progress

There is almost nothing to disassemble:

Unscrew the fixing bolt.
Remove the old part (you should remove it carefully, making sure that the belt does not slip off, and holding it with your other hand).
Install new one.
Make sure that the belt fits into the grooves of all rollers and pulleys.
Tighten the bolt, but do not tighten it completely.
Adjust the tensioner.
Tighten the bolt.
Check tension.

Tension adjustment using a roller

Adjusting roller and key for it

Some modern machines use special adjustment rollers . They allow you to quickly and easily tension the belt. As an example of using this method, consider adjusting the belt on a Lada Priora car with air conditioning and power steering, as one of the most popular cars in our country.

How to tighten the alternator belt on a Priora

Work on tensioning the alternator belt on a Lada Priora car is carried out using a special tension roller, which is part of the structure. To work, you will need a 17 mm wrench to unscrew and lock the mentioned roller again, as well as a special key to turn the adjusting roller (it is a structure of two rods with a diameter of 4 mm, welded to the base, the distance between the rods is 18 mm). Such a key can be purchased at any auto store for a nominal price. Some car owners use curved pliers or “duckbills” in their work. However, we advise you to still buy an adjustment wrench, given its low price and ease of further work.

How to check the generator roller

After diagnostics with removal, lubrication, replacement or adjustment, the roller must be checked. After completing the adjustment, check the tension according to the diagram:

manual control by pressure - a correctly tensioned belt should not bend by more than 0.8 cm;
start the engine;
turn on all possible energy consumers - air conditioning, heating, high beams.

If all components are working properly and there is no extraneous noise coming from the generator, the setup is correct. If there is a whistling sound, the belt is most likely under-tensioned, and if the bearings are humming, it is likely to be too tight. The procedure should be repeated more carefully, controlling the tension. Normally, the belt should bend by 0.6-0.8 cm when pressed.

Tension roller for generator and air conditioner Marel Magnum on VAZ 2110-2112, Priora

Manufacturer Marel (Italy)
Availability: In stock
Length: 7 cm x Width: 7 cm x Height: 4 cm
Weight: 0.35 kg
Product code: 16491
Catalog number: mr006
OEM: 2110-1041056/2

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Correct tension of the Priora generator belt

The alternator belt whistles on a Priora! This problem or malfunction, so to speak, is felt by every tenth owner of this brand of AvtoVAZ’s brainchild! In today’s article I will tell you why the alternator belt whistles and how to get rid of the annoying noise.

The alternator belt is a structural element of the engine that transfers mechanical energy from the crankshaft to the generator, which, in turn, converts it into electricity. The interaction between the generator and the crankshaft is ensured by a belt connection mounted on pulleys.

Description and location

The generator's job is to provide power to the vehicle's electrical equipment. Like other components in a car, the generator is powered by the engine; to ensure constant rotation of the rotor, pulleys are installed on the generator shaft and the crankshaft of the power plant. A belt is pulled between them. After starting the engine, the crankshaft begins to rotate, and the movement is transmitted through the belt to the rotor.

On the latest Priora models, this element operates the air conditioning and power steering. This material discusses the replacement and tensioning of the belt in a new model car, where additional equipment is installed.

The belt is a consumable item that requires replacement after 45-60 thousand kilometers . The size of the standard belt on a Priora with air conditioning is 1125 mm.

Why does the alternator belt whistle on a Priora when it’s cold?

On the Lada Priora, the alternator belt is closed. It is located in the enclosed space of the engine. And if there is no crankcase protection, it turns out that water gets on the belt, or wet weather. And it turns out that even a new, working one can whistle for a while, then the whistle stops. The new alternator belt whistles even in new cars; if it is open, it is enough to drive through a puddle. After 20-30 seconds the water dries and the problem is resolved.

Alternator belt and air conditioner Lada Priora

Many people do not know what an overrunning clutch is and what it is needed for. And modern Lada Priora generators are equipped with this particular coupling. The anchor of the generator itself is attached to it. In order for the belt to run smoothly, without jerking, the overrunning clutch is responsible for this.

Bearings, unfortunately, do not last forever and after 100-120 thousand km they begin to jam. And because of this, it can begin to “walk” to the right and left, that is, warp. Also, due to the tensioner wedge, it begins to “walk” not parallel on the pulleys. To prevent the generator belt from whistling, it is necessary to constantly check the pulley to see whether it is spinning or not spinning, and whether there are any distortions.

Working unit of the Lada Priora generator

The largest pulley is at the crankshaft, the smallest is at the generator. Over time, the pulley can become dirty. Dirt and stones get clogged into the grooves, causing wear and whistling of the alternator belt. Clean the grooves from dirt.

During operation it may become covered with various deposits. The store currently sells enough cleaning products. Just spray on your belt and it will stop whistling.

Replacing the alternator belt

In a Priora car, the alternator belt should be replaced after 60,000 km. In the case of rare use of a car as a vehicle, such a replacement of the alternator belt is carried out at least once every 2 years, regardless of the mileage traveled.

The procedure involves the following actions:

We drive the vehicle into the pit for inspection, prepare the necessary mechanic tools and a fender liner remover.
We loosen the generator mounting nut, remove the adjusting bolt, holding it by the body, and move the generator device towards the “engine”.
We dismantle the wheel and wheel arch liner of the vehicle.
We remove the alternator belt from the car and replace it by performing the installation steps in reverse order.
We check the tension of the alternator belt for normal functioning of battery recharging.

Because Since the power steering drive pulley in this version of the Lada Priora is located at a low height, the alternator belt on a Priora with power steering and air conditioning is structurally located near the engine support. It follows from this that replacing the alternator belt with such a modification is carried out subject to certain requirements.

We carry out the following procedures:

We prepare the necessary plumbing tools and WD40 fluid to put the threaded connections of the engine support and fasteners in order for the subsequent replacement of the generator belt and jack up the wheel on the right in the direction of travel of the vehicle.
Place a block under the engine and remove the wheel. We lower the car a little, unscrew the alternator belt tensioner roller, move the product to the side and unscrew the engine mount fasteners.
We lower the vehicle until the power plant is suspended. In this case, we shift the motor cushion towards the location of the unit. This distance will be enough to remove the old belt and replace the alternator belt with a new product.
At the finishing stage, you need to place the vehicle on a jack and lower the engine.

On the Internet you can easily find a video “replacing the Priora alternator belt”, which clearly shows the procedure for performing the work.

Hello, dear motorists! Well, let's move on to specific cars and their lovers?

“PRIOROVODY” - this is what the owners of cars from one of the latest VAZ series called “Lada” - “Priora” call themselves.

Many people liked the stylish and modern car. The deep-rooted belief that domestic cars are worthless is gradually dispelling. The cars have indeed become more comfortable and attractive, and their technical equipment has improved significantly.

The differences between the Priora and previous modifications are noticeable immediately as soon as the hood is opened. The new owner of a brand new Lada will have to learn a lot all over again. Such a simple, at first glance, manipulation as replacing the alternator belt on a Priora will require considerable effort.

Replacing the Priora generator 16 valves with your own hands video

VAZ car models usually do not present any difficulty with simple repairs or disassembly, they are inexpensive to service in almost any service center, and the basic configurations, if necessary, are suitable even for beginners. But if you need to replace a Priora 16 valve generator with air conditioning or power steering, dismantling it will be quite difficult due to the narrower space under the hood, and preparation is required.

Why, in fact, is it difficult to replace a generator on a Priora 16 valves?

The sixteen-valve version has a much narrower distance between the head and the radiator than the eight-valve version. If you remove the mounting bolts on a 16-valve generator, it will still not be possible to remove it - it will rest against the radiator. Because the free space under the hood will be occupied by a compressor or pump. Do not pull on the generator under any circumstances, this will damage the radiator. If something doesn't come off on its own, don't force it.

How to remove the generator

It is preferable to have a crane beam indoors; in extreme cases, you can use a jack on wheels, special for hanging the engine. You should proceed in the following way.

Disconnect the battery terminals.
Hang up the motor.
Remove the drive belt.
Loosen the hoses on the power steering or air conditioning.
Remove the mountings from the generator.
The generator can now be disconnected and powered up. First to the side, then up.
When all wiring is disconnected, the generator can be removed.

Replacing the alternator belt on a Priora 16 valve is carried out in the reverse order, just install the new part following the instructions.

How to remove a generator on a Lada without air conditioning

If you do not have additional equipment installed, replacing the Priora 16 valve generator will be a little easier, since there will be more space under the hood.

Remove the negative terminal from the battery.
Remove the protection from the engine.
Unscrew the nut on the belt tensioner (not completely, a maximum of four turns). Now you can turn it around by turning the screw a little. When it is loose enough, you can remove it.
Remove the protective cap to later remove the terminal from the wiring harness. Now you can remove the wiring block.
Remove the nut to remove the top mounting bolt, then do the same with the bottom mounting bolt.
Remove the belt and then the entire generator.

Why does the alternator belt whistle on a warm Priora engine?

There may be several reasons why the VAZ-2110 alternator belt whistles. However, the first place in terms of frequency of occurrence is the wear and tear of the material from which it is made. The rubber stretches, loses its shape, and begins to slip.

Diagnostics is carried out visually, based on the degree of belt tension. If it sags and can be easily turned by hand (while the pulleys remain motionless), then the cause of the malfunction can be considered found.

Lada Priora generator installed on a car

The drive may not whistle constantly, but periodically whistle for some time after a cold start in winter. In general, if the situation returns to normal after warming up, no intervention is required. The fact is that the rubber from which the element is made becomes hard in the cold and does not adhere tightly to the surfaces of the pulleys. As it warms up, it takes on a working form and the whistling stops.

Tension with adjuster bar

Securing the generator using a strip

This method is used for older cars (for example, “classic” VAZs). It is based on the fact that the generator is attached to the engine using a special arc-shaped strip , as well as a bolt and nut. By loosening the fastening, you can move the bar with the generator relative to the engine to the required distance, thereby adjusting the tension level.

Actions are performed according to the following algorithm:

unscrew the fastening nut on the arc-shaped bar;
Using a pry bar, we adjust the position (move) of the generator relative to the engine;
tighten the nut, fixing the new position of the generator.

The procedure is simple, it can be repeated if you were unable to achieve the required level of tension the first time.

Alternator belt tension

For the standard alternator belt on a Priora, the size may vary depending on the configuration of various drive systems. The generator drive with hydraulic steering uses a generator belt with power steering with a poly-V-ribbed pattern, which has the nomenclature 6РК1115 and a length of 1115 mm. The Priora engine without hydraulics is equipped with a belt with the nomenclature number 6РК742, the circumference of which is 742 mm. When a vehicle is equipped with climate control equipment, a generator belt with an air conditioner with the nomenclature number 6РК1125 with a working surface length of 1125 mm is used as a drive mechanism.

Unscheduled tensioning of the generator belt on a Priora is required when this rubber product stretches due to wear during operation or when the adhesion of the belt surface to the plane of the generator belt tensioner roller, other rollers and pulleys decreases. In this case, it is necessary to tighten the generator belt to restore the normal functionality of the power plant.

Direct tensioning of the generator belt is carried out using a standard set of wrenches and a special wrench for the roller. If the alternator belt whistles in your car, you need to tighten it to avoid breaking. To do this, we carry out the following set of repair work:

Slightly unscrew the fasteners of the generator belt tensioner roller, making sure to hold the clip with a wrench.
Rotate the cage part of the eccentric roller to tighten the alternator belt, which improves its tension. Next, tighten the tension roller fasteners.
When operating correctly, the belt deflection in a basic version car should not exceed 10 mm.
In a modification equipped with an air conditioner or hydraulic steering mechanism, significant effort must be made to tighten the alternator belt.

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