Tensioning the alternator belt VAZ 2114, 2111, 2113, 2115: tension indicator, tightening instructions

Adjusting belt tension

Incorrect tension of the alternator belt can have an extremely negative impact on the operation of the components and assemblies that depend on it. Thus, too weak a tension will lead to its slipping, leading to unstable operation of the generator (due to poor transmission of torque) and interruptions in the on-board network (including rapid battery discharge).

On the contrary, an excessively tight belt tension can cause excessive stress on the generator bearings, thereby leading to their rapid wear or even destruction. It is for this reason that the tension value is extremely important and should be checked periodically.

In order to correct it and return the belt to normal operating condition, you need to:

loosen the generator fasteners from below and from above;
turn the adjusting bolt and thus tighten the tension (to increase the tension, rotate the bolt to the right, to loosen it, to the left);
Using a wrench, turn the crankshaft several turns and check the tension;
If the tension is OK, tighten the generator fasteners.

Belt tension on the VAZ 2114 generator
The tension check itself can be done by simply pressing the belt with your hand. If it is tensioned correctly, its deflection will be about 8 mm. If the deflection is greater, the tension should be increased; if it is less, it should be weakened.

You can check the correct tension in another way - just put the multimeter in DC voltage measurement mode with a limit of 20 volts and measure the voltage at the battery terminals with the engine running. Stable readings will indicate that the belt is tensioned well (which means that rotation is transmitted smoothly to the generator). If the voltmeter readings fluctuate, the belt tension should be adjusted.

Another clear sign of proper belt tension is that it runs silently. If it moves smoothly, without making a whistle, hum or other extraneous sounds, then everything is fine. If any noise is heard during its operation, it means that the tension was performed incorrectly (in some cases, the cause of the noise may be jamming of the generator, as discussed above.

That is why, if after repeated attempts to adjust the belt tension it is not possible to remove the whistle, you should pay attention to the condition of this device).

Performing tension

If there is no wear on the V-belt drive, but there is a whistle, first of all, check the tension level. We will not use complex terminology, but will simply advise you to press with some force on the belt in the middle.

If the tension is done correctly, then the belt will bend no more than 8 millimeters. If the deflection is greater, then the element will have to be tensioned, and if it practically does not deflect, the tension will have to be loosened.

The problem is not the whistling. Due to weak tension, the battery does not charge effectively, and the drive itself begins to wear out faster. Excessive tension can lead to damage to the alternator bearings and stretching of the belt.

Correct tension of the VAZ 2110 generator belt is performed as follows:

Loosen the generator from the bottom and top. A nut is used for this;
Turn the adjusting bolt and adjust the belt;
If you want to increase the tension, the bolt is turned to the right. Thus, you move the generator away from the cylinder block;
To loosen the tension, move in the opposite direction - to the left;
Use a wrench to grab the fastening bolt and turn the crankshaft a couple of turns, then check the tension;
If all is well, the tension is correct, the nut can be tightened back.

Replacing the alternator belt

If, after checking and inspecting the belt, it turns out that it is cracked or crumbled, then it should be replaced with a new one, which is extremely important - a similar one. Thus, the size of the VAZ 2114 8-valve generator belt is individual. It differs from the size of the belts of other VAZ cars, and therefore you should purchase the belt for the 14th model at the auto store. Its standard length is 698 mm (if power steering is installed on the car, the belt length will be longer).

Replacing the VAZ 2114 alternator belt

The replacement itself is performed in the following sequence:

loosen the belt tension adjustment nut and the lower mounting nut of the generator;
loosen the tension on the alternator belt;
move the generator towards the engine - this will loosen the belt as much as possible;
remove the belt from both pulleys - the generator and the crankshaft;
put a new belt on the drive pulley (on the crankshaft axis);
put the belt on the driven pulley (on the generator axis);
tension the new belt according to the scheme described above.

Thus, replacing the drive belt is quite simple, and the procedure itself will take very little time.

How to tension the alternator belt

The generator in a car plays an important role: it converts the mechanical energy of the crankshaft rotation into electrical energy. Energy is transferred from the crankshaft to the generator using a special belt, and the degree of its tension determines the provision of the vehicle’s electrical system. (see video “How to tighten the alternator belt” below)

The generator belt connects two pulleys - the generator and the crankshaft, which rotate at high speed. If the belt does not fit tightly enough to the pulley, the crankshaft will slip - usually in such cases, a whistle is heard from the engine compartment.

According to the degree, belt tension can be: insufficient, excessive and normal. Already from the name it is clear that you need to strive for normal tension, and insufficient or excessive tension does not benefit the operation of the car.

If the alternator belt is not tensioned tightly enough, the crankshaft pulley will slip, causing the alternator belt to become excessively hot. As a result, the generator does not work efficiently, and its belt quickly becomes unusable. This means that you need to tighten the alternator belt so as to achieve a tighter fit to the crankshaft pulley.

How can you tension the alternator belt?

This procedure can be performed using: 1) either an adjusting bar, 2) or an adjusting bolt.

THE FIRST METHOD (with an adjustment bar) is popular on classic VAZ models. The generator on these cars is attached to the engine crankcase with a long bolt that allows the generator to be moved in different directions. In the upper part there is an arc-shaped bar with a slot and a nut that fixes the position of the generator.

To tighten the alternator belt:

– unscrew the nut on the bar; – press the generator away from the engine using any extended tool; – now tighten the nut on the bar; – make sure that the belt tension is sufficient; if necessary, repeat all the manipulations again.

Replacing the alternator beltReplacing the alternator belt tensionerReplacing the alternator belt rollers

THE SECOND METHOD of adjusting the tension of the generator belt is considered more advanced. Here the adjustment is made using an adjusting bolt.

To tighten the alternator belt using this method:

– loosen the generator mounting nuts; – to move the generator away from the block, begin to smoothly turn the adjustment bolt clockwise; choose, at the same time, the desired degree of belt tension; – retighten the generator fastening.

It doesn’t matter how you tensioned the alternator belt - you used an adjusting bar or a bolt - after completing the procedure, you need to turn the crankshaft two to three turns with a wrench. After this, you need to check the tension level of the alternator belt again.

The last check must be done after the first trip.

Video: How to tension the alternator belt

What is needed to replace the alternator belt on a VAZ-2114

On a VAZ-2114 car, replacing the alternator belt takes place quite quickly and without the use of special tools. Depending on the replacement method, we will select the necessary tool, and work on replacing the alternator belt on a VAZ-2114 can be done either from under the hood or from the wheel arch.

In terms of time, both methods are almost identical, so if the work is carried out in Murmansk and in December, then it’s easier to do everything from under the hood, and if it’s warm and dry outside, then you can slowly remove the wheel, it’s a little more convenient, or you can replace the belt from -under cars.

New alternator belt

Apart from the standard tools and a new belt, you won’t need anything else, except for unforeseen circumstances, such as rusted fasteners, but this happens extremely rarely. In these cases, either WD-40 spray or brake fluid will come in handy. If everything is ready for replacement, all that remains is to install the car on a flat surface, and if we change the belt by removing the right front wheel, then a jack with a wheel wrench will also come in handy. Now that's it, let's go.

Belt removal algorithm

The replacement procedure itself will not create any difficulties, but you should adhere to some general rules, and here is the first of them.

God protects those who are careful, so when doing any work on the on-board electrical system, you need to turn off the power to the car. The easiest way to do this is using a ground switch, and if there is none, then you just need to remove the negative terminal from the battery. This will reduce the risk of an accidental short circuit.

Precautionary measures have been taken, the tool has been prepared, a new belt has been purchased. You can get to work.

For convenience, remove the side protection from dirt. Generator without side protection from dirt and water Side protection mounting bolt
Loosen the nut of the bolt securing the generator housing to the cylinder block.
This can be done from under the hood using a socket with a wrench, or from under the car with a regular spanner. Alternatively, you can remove the wheel, fender liner, engine mudguard and do all the work from the side. Loosen the nut of the bolt securing the generator housing to the cylinder block
Loosen the top nut securing the generator with a 13mm wrench. It presses the generator body against the guide rail. It is enough to unscrew it a few turns. Loosen the nut securing the generator to the mounting plate. Upper bolt securing the generator
Release the tensioner mechanism until it stops.
You can loosen the generator and not completely, we will be able to remove the old stretched belt, but it is unlikely to install a new one. Therefore, it is better to release the generator all the way. We loosen the belt tension by rotating the bolt counterclockwise
We remove the old alternator belt and assess its condition before throwing it away. Its damage or traces of liquid can tell a lot about the condition of the cooling system and lubrication system. In addition, it is worth wiping the generator pulleys and the drive pulley on the engine before installing a new belt on the VAZ-2114. Condition of the old alternator belt Worn alternator belt
Install the new belt on the engine in the reverse order.
Since the belt is new, we will tighten it in two stages. Having moved the generator to the cylinder block, install a new belt
Pre-tighten the belt. 100 N (10 kg) to one of the belt branches , and it should bend no more than 10-15 mm. 100 N at the factory is a mystery to everyone, but an experienced motorist knows how much force needs to be applied.

All about replacing the timing belt on a VAZ 2114

The functionality of the gas distribution mechanism is one of the factors that ensures the correct operation of a car engine. A broken strap can lead to serious consequences, including the need for major repairs of the machine. In this article we will analyze in what cases the VAZ 2114 timing belt needs to be replaced and how the procedure for changing the part is performed.

When is replacement required?

How to change it yourself?

What will happen if you don't change?

Video “Visual aid to replacing the timing belt”

Comments and Reviews

When is replacement required?

According to official regulations, the manufacturer recommends that owners of fuel-injected VAZ 2114 cars change the strap every 60-75 thousand kilometers. In this case, once every 5-7 thousand km it is necessary to perform a visual inspection of the belt for wear. The strap will last 75 thousand km if installed correctly and following the operating rules. When performing repairs along with the product, the manufacturer recommends replacing the tension roller, since its wear can lead to breakage.

Broken timing belt in a VAZ

When to change a belt if it has not yet reached its service life:

When the product is deformed.
The appearance of cracks in the structure.
Delamination. Over time, the threads that make up the structure may peel off from the belt.
Damage to the teeth of the structure. If even one tooth is cut off, it can cause the belt to slip. Operation of the vehicle may become impossible.

User Levan Bugulov in his video showed how to replace the strap on a VAZ 2114 with your own hands.

Belt selection

To change the strap yourself, you will need the following parts:

The belt itself. Article number of the original product 2108-1006040-10.
Tension roller. The original part has catalog number 2108-1006120. Please note that only this type of roller can be used; the use of parts with article number 2112-1006120 is not allowed, since these elements are not interchangeable.
For a complete replacement, you will need a pin for the tension roller. Its article number is 2108-1006129.
Sealing element under the casing, if necessary. Catalog number of the original part is 2108-1006149.
If the plastic timing belt cover is cracked or damaged, it must also be replaced. The catalog number of the original casing developed for the VAZ 2114 is 2108-1006146.

Analogs

If you cannot purchase original spare parts, you can install an analogue:

Gates, model 5521 or 5521XS (this belt will be reinforced);
Bosch, article number 1987949559;
Kontitek, catalog number ST-527;
Daiko 111x190/1;
Good Er, there are two options - with semicircular teeth G1474 or with trapezoidal teeth G1485.

Learn more about how to independently replace the timing belt in a VAZ 2114 car and set the marks correctly from the video made by user Alexander Amochkin Kolomna AAK.

As for the videos, they can also be unoriginal:

Gates, model T42042 or T42042A;
Flennor, model FS99018;
Optimal 0N1917.

How to change it yourself?

You can replace the belt on an 8-valve VAZ 2114 with an injector engine yourself or by ordering the appropriate service at a service station. During the shift process, there are nuances that must be taken into account when performing the task. If you make mistakes and do not change the strap correctly, this can lead to rapid wear and breakage. Below are instructions for replacing the belt in a VAZ 2114 8 valve.

Tools

If you change the belt yourself, prepare the following:

a set of open-end wrenches, you will need tools for 13 and 17;
long flat blade screwdriver;
10mm ring wrench, you can use a ratchet head;
key for installing the tension roller;
wheel wrench;
jack.

User Pro Remont shared a video that describes in detail the procedure for replacing the timing belt pulley and timing belt in a VAZ 2114 car.

Algorithm of actions

How to change a belt correctly:

Drive the car into a garage with a pit. The surface on which work is performed must be level. Switch the gear selector to neutral position.
Loosen the bolts on the front right wheel. Place this part of the car on a jack so that the wheel can be rotated.
Open the hood of the car. Using a 10mm wrench, remove the three screws that secure the plastic strap protector.
Using a 13mm wrench, you need to loosen the bolt that secures the tension roller. Remove the device.
You can see a mark on the camshaft gear; it is made in the form of a rectangular protrusion on the edge. When performing work, it is necessary that this mark coincides with the protrusion located on the fastening of the strap casing. If these marks do not match, you need to turn the wheel until they match.
Then find the rubberized plug installed on the top of the clutch housing; it is located to the right of the power unit’s BC. The part is carefully pryed off with a screwdriver and removed from the seat. Under the plug you can see the flywheel crown; there is a mark on this device. It should be opposite the triangular protrusion located on the left. If the marks do not match, then take a 17mm wrench and loosen the tensioner. Using a pulley removal wrench, turn the device counterclockwise to loosen the timing belt.
When the upper part of the belt is removed from the gear assembly, take a 17mm wrench and turn the crankshaft until the flywheel marks are opposite each other. The flywheel itself must be secured in this position; to secure it, use a screwdriver and install it between the teeth. If you have an assistant, ask him to hold the tool to prevent it from turning.
Now you can remove the right wheel. Unscrew the screws that secure the arch protection and dismantle it.
Using a 17 mm wrench, unscrew the nut securing the generator set pulley. When unscrewing, make sure that the flywheel does not turn.
Dismantle the generator pulley and remove it from its seat.
Remove the timing belt from the crankshaft disc.
Using a 17mm wrench, completely unscrew the tensioner pulley lock and remove it from its seat. If you loosen the fastening, the belt can be removed.
Install the new product onto the crankshaft disc. When installing, make sure that the marks are not broken. Install the generator set drive pulley by first placing a strap on it.
Place the product on the gear of the mechanism. Install the tension roller.
The strap is being installed. During installation, the tension roller must be turned with a special tool purchased in advance at the store. If you don't have one, you can use two self-tapping screws and a screwdriver. Self-tapping screws are installed in the grooves, and a screwdriver secures them. Turning is done counterclockwise. Tension the belt using the tension roller and tighten the screw that secures the roller.
It is necessary to set marks if they are lost during the work process. The installation procedure for all components is performed in reverse order.

Adjusting the tension of the generator belt

The belt is installed, but the work is not finished yet. It needs to be tightened and adjusted correctly. In this case, they make two common mistakes - either they tighten the belt until it turns blue, or they don’t tighten it enough. Both one and the other are bad for the engine:

if the belt is not tightened enough , it will slip on the generator pulley, and the latter, in turn, will not give the required charge to the battery, as a result of which the battery will discharge and quickly fail;
if the belt is overtightened, the load on the bearings of the VAZ-2114 generator will be too high, which will lead to their premature wear or destruction.

This is why it is very important to correctly adjust the belt tension immediately after installation. Initially, we tension the belt as required by the instructions, after which we start the engine, turn on the maximum consumers of electricity on board and listen to the generator (see “selecting a generator”) - it should not emit an excessive hum or squeak, and with a sharp change in engine speed, the belt does not should slide on the pulley with a whistle.

If everything is normal, turn off the engine and collect the fender liners and mudguards. The new belt may stretch slightly, so after a few kilometers it is worth checking the belt tension again.

Checking the tension of the generator belt

There is another way to calculate the correct belt tension. It is more accurate in terms of generator output. The method is simple and easy to check, and then anyone who has ever used a multimeter can tighten or loosen the belt.

We connect the multimeter to the battery terminals in voltage measurement mode, after which we change the belt tension; if the multimeter readings are unstable, the belt slips along the pulley and needs to be tightened. We tighten the belt until the device readings stabilize. After this, you can verify the correct tension of the alternator belt in the usual way.

In this way, you can quickly and without unnecessary hassle replace the generator on a VAZ-2114 and similar VAZ models. Stable tension and good travels to everyone!