Changing the alternator belt on an 8-valve VAZ-2114 with your own hands: tips, adjustment

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).

Dimensions

It is quite possible that you have selected the wrong alternator belt size for your 16 valve VAZ 2110. This often causes whistling. The correct size of the alternator belt for the 8 valve VAZ 2110 should be determined in advance, even before going to the auto parts store.

The sizes are different, and they are individual for each VAZ model.

If we talk specifically about the “ten”, then adhere to the following rules for choosing a belt size:

1. In the absence of air conditioning and power steering, 742 millimeters is suitable;
2. If the car is equipped with a hydraulic booster, then the size will be 1115 millimeters;
3. If an air conditioner is also present, then the optimal size is 1125 millimeters.

Some craftsmen regularly use original belts from other AvtoVAZ models - Priora and Kalina - to replace them when repairing their "ten".

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.

Timing and frequency

According to the regulations for carrying out technical work, on the VAZ 2114 the procedure for replacing the timing belt and rollers should be carried out every 120 thousand kilometers. However, in reality this deadline usually comes earlier. Many car enthusiasts advise preparing for replacement after 90 thousand kilometers. Do not forget about regular inspection of the components of the gas distribution system. If you notice the slightest problem, the defective components should be replaced immediately. Failure to promptly replace faulty parasitic rollers will sooner or later lead to a broken timing belt. During a break, desynchronization of the valves and piston occurs, which leads to breakdowns and deformation of these components.

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.

1. For convenience, remove the side protection from dirt. Generator without side protection from dirt and water Side protection mounting bolt
2. 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
3. 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
4. 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
5. 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
6. 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
7. 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.

We change the belt ourselves (on the 8 valve model)

Replacing the VAZ 2114 timing belt is strictly regulated in the car's operating instructions. It is recommended to change this part after 30-45 km. But you can’t rely only on recommendations; over time, without running the required kilometers, it slips off the gears, eats, bursts, and may even rupture.

For a car with a 1.5-liter 8-valve engine installed on it, a belt break will not have serious consequences: the car will simply stop and will not start. And in a 1.3 liter engine, the valves may become damaged, which will lead to breakdown of the entire engine. If an injector is installed on the VAZ2114, then when the belt slips, eats or breaks, the dashboard will display: “headlight sensor error.” Solve the question after how many km. This part should be changed after a visual inspection and a replacement should be made if it is in poor condition. Which strap is better to choose is written in the manual for the VAZ 2114.

Required Tools

To carry out the replacement yourself, you need to prepare new spare parts and tools:

New consumables for installation

Stages of work

The DIY replacement sequence consists of the following steps:

Why you should change the timing belt yourself: you will save time and money, you will know what to do if it slips or eats.

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!

Timing roller location

Before you begin diagnosing or replacing the timing belt and rollers on a VAZ 2115 with 8 valves, you need to determine where the system itself is located. You can find it on the left side of the engine if you stand in front of the hood. It is located under a protective cover that prevents debris and dust from entering the system. For visual diagnostics, simply unscrew a couple of bolts and remove the upper part of the casing. However, if you are planning a more serious operation, such as replacing a belt or rollers, this will not be enough.