Replacing the alternator belt on a VAZ 2107 injector

Replacing the alternator belt VAZ 2107 injector video

Replacing the alternator belt on injection VAZ-2107 is practically no different from a similar replacement on carburetors, with the only difference being that the crankshaft position sensor is additionally removed.
Before replacement, you need to arm yourself with a key for 13 (17) and 19, a Phillips screwdriver and a pry bar (or a tool replacing it). So, let's get started: After replacement, it is necessary to adjust a certain sag of the belt when pressing with a finger with a force of 10 kgf - 10-15 mm between the generator and pump pulleys and 12-17 mm between the crankshaft and pump pulleys, respectively. We must remember that over-tightening threatens belt breakage or increased wear of the bearings, and under-tightening threatens increased belt wear, slippage and poor battery charging.

Domestic cars are much easier to service than foreign cars, so you can do many of the jobs related to their service yourself. In this article we will explain how to tighten the alternator belt on a VAZ 2107 better, or even how to replace it if necessary, and what size keys are best to do this with.

Often the occurrence of a particular breakdown on a VAZ 2107 can be diagnosed by sound. Slipping of the alternator belt is exactly one of these. The characteristic whistle occurs as a result of its friction against the pulleys. Additional signs of malfunction of this unit may be unstable operation of the generator and non-charging of the battery.

VAZ 2107 car

The generator on a VAZ 2107 car, with an injector or carburetor, has a similar type of drive, so they have the same problems. The only difference is that the injector has a crankshaft position sensor, which will need to be removed when replacing.

These problems can be completely solved on our own; there is no need to resort to the services of service station technicians. You just need to correctly establish the cause of the malfunction, and then everything is quite simple.

Checking and adjusting the tension of the generator drive belt

Checking and adjusting the tension of the generator drive belt and replacing it
Insufficient tension of the generator belt impairs battery charging and leads to increased belt wear. If the alternator belt is too tight, the alternator and water pump bearings may fail.

This is what the alternator drive belt looks like from the top right of the engine compartment. The generator drive belt 2 is installed on the pulleys of the generator 1, water pump 3 and the crankshaft (not visible in the photo).

NOTE Checking the tension of the generator drive belt is performed from above in the engine compartment.

Tension is characterized by the amount of deflection of the generator belt between the pump and crankshaft pulleys (deflection B) or the generator and pump pulleys (deflection A) when a force of 98.1 N (10 kgf) is applied in the middle of the distance between the pulleys. Deflection A should be 10-15 mm, deflection B -12-17 mm.

USEFUL ADVICE It is more convenient to check the deflection A.

To adjust the tension and replace the alternator belt on a VAZ car, you will need: keys “17”, “19”, and a mounting blade. Adjust the belt tension on a VAZ vehicle mounted on a lift or inspection ditch. The belt is adjusted by moving the generator relative to the engine.

Scheme for checking the tension of the VAZ generator drive belt: 1 - generator pulley; 2 — pump pulley; 3 - crankshaft pulley.

1. Remove the mudguard.

2. From the bottom of the VAZ car, loosen the nut of the lower mounting of the generator by about one turn.

3. From the top of the car from the engine compartment, loosen the nut securing the generator to the tension bar by about one turn.

USEFUL TIPS For easy access to the nut securing the generator to the tension bar, remove the battery from the car. To loosen the nut securing the generator to the tension bar, use a socket with a universal joint and an extension.

4. To increase belt tension, move the generator away from the engine.

WARNING When moving the generator to increase belt tension, apply force only to the generator housing, placing a mounting blade between the housing and the engine.

5. To reduce belt tension, move the generator towards the engine.

NOTE To reduce belt tension, move the generator by hand.

6. Without changing the position of the generator, tighten the nut securing the generator to the tension bar and the nut of the lower mounting of the generator.

NOTE Tightening torques: — nuts securing the generator to the tension bar 28.08-45.3 N•m (2.9-4.6 kgf•m); — nuts for the lower mounting of the generator 57.3-72 N•m (5.95-7.35 kgf•m).

7. Install the mudguard in the reverse order of removal.

8. To replace the generator belt, follow steps 1, 2 and 4 (taking into account the recommendations thereto) provided for adjusting the tension of the generator belt.

9. Remove the generator belt first from the pump pulley, then from the generator pulleys and crankshaft.

10. Place the new alternator belt first on the crankshaft pulley, then on the alternator pulley.

11. Place the new alternator belt onto the pump pulley.

If the new alternator belt is tightly placed on the pump pulley, and the alternator is pushed all the way towards the engine, carefully turn the pump pulley by hand or slowly turn the crankshaft until the belt is completely seated on the pulley. Have an assistant turn the crankshaft.

12. Follow steps 3, 5-7 (taking into account the recommendations thereto) provided for adjusting the tension of the generator belt.

Source

In what cases is replacement necessary?

The alternator belt on the VAZ 2107 is changed when worn. If you find cracks on it or its edges are frayed or the teeth are worn out, then do not wait, but replace it immediately. If it breaks, the motor will heat up and may even boil. In this case, the battery will remain without recharging and will quickly discharge.

Cracks and scuffs on the belt

What can you do if this unit breaks on the road?

Step-by-step replacement instructions

Replacing the alternator belt on a VAZ 2107 is a very simple job and can be done in normal garage conditions without the involvement of a specialist.

Tools

To change the belt, we need:

Keys of required sizes

Stages

The first step is to loosen the nut that secures the generator to the mounting plate.

As you can see, everything is quite simple and there is no need to contact a service station to fix such a malfunction. If you have any questions, watch the video or leave a comment below.

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Reasons for the break

1. Exhausted resource. The belt needs to be changed at 50-60 thousand kilometers, but many do not do this;
2. Defective product. The manufacturer may produce low-quality goods;
3. Failed tension rollers, shafts and pulleys;
4. Incorrectly selected belt tension level.

1. Lack of teeth. If there are no teeth, the product cannot engage on rollers, pulleys and shafts;
2. External modifications. If cracks, chips, stretching and other defects are noticed, urgent replacement is needed.

If you hear a whistle from the engine compartment when the radio, fog lights, regular headlights, etc. are on, then most likely it’s time to change the belt. Often, the whistling is eliminated if you tighten it, or vice versa, loosen the product a little. If the generator malfunctions, the “Check engine” indicator or, literally translated, “engine malfunction”, lights up on the instrument panel of the VAZ 2107.

Video “Correct tension”

In this video, an experienced auto mechanic shows you how to tighten or loosen a belt correctly.

The belt is necessary to connect the generator and crankshaft pulleys, and on front-wheel drive classic models, the water pump pulley also takes part in the connection.

It is not so difficult to independently replace a torn or stretched alternator belt in a VAZ-2107 with an injector-type engine that has an additional carburetor.

For this you will need:

a mounting spatula, which can be replaced with a crowbar or a strong flat stick;
wrenches 17 and 19.

This is quite enough to carry out repairs. Of course, if you at least have an idea where this very belt is located.

The purpose of the timing chain and its length

To understand the purpose of the timing chain, it is necessary to outline what the engines of classic VAZ models are. All these engines are overhead engines. That is, the timing shaft (aka timing) is located in the upper part of the engine, above the crankshaft and above the oil pump shaft.

The timing chain is the main connecting link in the VAZ 2107 engine

https://youtube.com/watch?v=kx3VxkUlNsQ

In what situations is replacement necessary?

Wear of the element is characterized by such manifestations as cracks or tears in the blade, worn teeth and uneven edges. If you ignore such a deplorable state of a very important element, it will come back to haunt you with overheating and boiling of the engine, independent operation of the battery, which will lead to its rapid discharge.

If the belt is severely worn, it also shows signs of noise to the owner - it begins to whistle, especially at low speeds. Another reason for a whistling belt may be moisture getting on its surface, which occurs due to worn-out pipes of the cooling system - antifreeze begins to leak.

Some belts - oak - whistle when the car is started in frosty weather, and after warming up the sound disappears. A weak tension is expressed by a whistle, but in this case it is enough to simply tighten it.

Signs indicating drive belt failure

Replacing drive belts on a Lada is a necessary procedure that must be carried out in a timely manner. You should not wait until the belts fail, since the operation of important equipment in the car depends on them.

The first signs of possible drive belt failure:

The check engine light flashes, especially when accelerating or when there are a large number of electrical devices turned on at the same time (radio, headlights, heater and heated windows or mirrors)
The appearance of a whistling sound while the car is moving

In this case, you need to contact a car service to diagnose the car and inspect the drive belts. If this is not done, the belt may break, which will ultimately seriously damage other important parts of the car.

DIY belt replacement process

To remove the belt, you will need access not only to the upper front part of the car, but also to the lower one.
Therefore, if a crankcase protection is installed, you will need to remove it. Some craftsmen, for convenience, to facilitate access to the belt, also remove the battery. Once you have access to the required element, inspect it. If there is no visually visible damage to the canvas, just check the tension, it may have weakened. This is easy to do, just press the belt with your fingers, simulating a pressure of approximately 10 kg, and by the distance of deflection you can determine whether the element is in acceptable tone. The maximum standards in a narrower place are 10-15 mm, and in those where the space between the pulleys is wider - 12-17 mm.

You only need to remove the belt from the pulleys if it is completely replaced; you do not need to do this to retighten it. At the bottom of the car, unscrew the nut securing the generator underneath by one turn. In the engine compartment, loosen the upper fastening nut of the same device a few turns. Under no circumstances should you completely unscrew the fasteners, just loosen them until they begin to turn freely.

To remove the belt, you will need to press the alternator slightly against the engine, but under no circumstances do this with your bare hands. Then remove the belt. You need to start with the top pulley, and then with the rest. Only in this order will it be easy to remove the element. On injection car models, you will also need to remove the crankshaft position sensor, otherwise it will interfere with the removal of the belt.

To adjust the blade tension, place a previously stored spatula or a flat piece of crowbar between the engine and the generator, using it as a lever. Having moved the generator in this way, without releasing the blade, but holding it in this position, tighten the nuts of the upper and lower fastenings, after which you can release the “lever”. It will be easier if someone helps you with this.

After the manipulations have been completed, check the belt tension again using the previously described method.

To put on a new belt, you need to know some of the nuances of this process. For example, one of the most important points: you need to put the belt on, starting with the crankshaft pulley, then on the generator pulley, and only finally on the pump pulley.

Thanks to the video instructions, you can learn in more detail and clearly how to change or tighten the alternator belt if you plan to do it yourself for the first time.

Where is the generator located on the VAZ 2107

The generator on the VAZ 2107 functions in close connection with the battery. As with any other car, this device generates electricity to power all elements of the car. In this case, the generator performs its function only when the engine is running.

On the VAZ 2107 this mechanism is located directly on the surface of the power unit on its right side. This position is due to the fact that the generator is started by the movement of the crankshaft through the V-belt.

How to replace the generator on a VAZ 2107

Replacing a generator set is required in cases where the device no longer produces the required amount of current for consumer systems. The most common reasons for replacing an installation are the following malfunctions and breakdowns:

burnt winding;
interturn short circuit;
deformation of the generator housing;
resource development.

It is almost always easier and more profitable to replace the generator with a new one than to repair it.

Tool preparation

To dismantle and subsequently install the generator on a VAZ 2107, you will need a standard set of tools, which every driver usually has in his garage:

wrench 10;
wrench 17;
wrench 19;
a pry bar or a special shovel for installation work.

Alternator belt for VAZ 2107

"Seven" came off the assembly line of the Volzhsky Automobile Plant in the period from 1982 to 2012. Initially, the model was equipped with a drive belt of a currently outdated model, which had a smooth surface without any roughness. However, later VAZ 2107 began to be re-equipped to meet the requirements of the time, which led to the emergence of a new type of belt with teeth.

It should be emphasized that the most popular manufacturer of belt products for the domestic automotive industry is Bosch. For many years, the German manufacturer has been producing high-quality products that, both in size and service life, completely satisfy VAZ 2107 owners.

Alternator belt sizes

All parts used in the design of the car must have markings and manufacturer numbers. Design numbers and sizes of belts for the VAZ 2107 are specified in the operational documents for this model:

2101–1308020 (smooth surface), dimensions - 10.0x8.0x944.0 mm;
2107–1308020 (toothed surface), dimensions - 10.7x8.0x944.0 m.

How to properly tension the belt on the generator

When installing a generator on a VAZ 2107 yourself, the most difficult moment is considered to be proper belt tension. After all, it is through the belt that the generator mechanism will be launched, therefore, any errors and miscalculations when tensioning the rubber product will affect the performance of the car.

The belt tension is performed as follows:

Place the new generator in its regular place, placing it on the studs.
Tighten the fixing nuts only halfway, without over-tightening.
Use a pry bar to install into the gap formed between the generator wall and the pump. Secure the mount in this position.
Place the new belt on the alternator pulley.
Hold the pry bar and begin tensioning the belt.
Tighten the fixing nut in the upper part of the mounting of the generator unit housing.
Afterwards, carry out a preliminary diagnosis of the degree of tension - the rubber product should not sag downward much.
Tighten the lower stud nut until it ends without overtightening.

Next, the quality of the belt tension is checked. Using two fingers, press firmly on the free part of the belt and measure the existing deflection. Normal sagging should not be more than 1.5 centimeters.

The service life of a typical belt for a VAZ 2107 generator is usually 80 thousand kilometers. However, it is recommended to change the belt drive earlier if the generator set is being replaced.

Thus, the generator on the “seven” can be replaced with your own hands, but you must adhere to strict rules and observe safety precautions. If you have problems with the operation of the motor after replacing the device yourself, it is better to contact a professional.

DISMANTLING WORK

It is recommended to remove the generator from the “seven” after the engine has cooled down. It is not recommended to work with vehicle components immediately after driving due to high temperatures and the risk of injury.

Immediately before removing the generator, you will need to remove the right front wheel, since the installation can only be reached from under the bottom of the car through the right fender.

It is imperative to securely fix the position of the car with a jack and auxiliary devices (hemp, stands) in order to eliminate the risk of the car falling during operation.

The jack must be rested against the beam of the car.

The progress of work comes down to the sequential implementation of the following actions:

Find the generator housing in the mechanical structure of the car, feel for the bar that secures it to the engine.
Using a wrench, unscrew the fastening nut halfway.
Unscrew the nut on the bracket, but do not remove it from the stud.
The generator housing can be pulled and moved in any direction - this will become possible due to the loose fastening.
Remove the belt from the landing pulleys and remove it from the work area.
Disconnect all incoming wires to the generator housing.
Unscrew the fastening nuts completely.
Pull the generator towards you and remove it from under the body.

Immediately after dismantling work, you should inspect the generator landing site. All joints and fastenings must be cleaned of dirt and, if necessary, treated with acetone.

Accordingly, installation of the new generator will need to be carried out in the reverse order, paying special attention to tensioning the new belt.

VIDEO: INSTRUCTIONS FOR REPLACING THE GENERATOR ON A VAZ 2107

Replacing the Alternator Belt VAZ 2107 Injector

Replacing the alternator belt on a VAZ 2101-VAZ 2107

First, it ties the alternator belt to the alternator pulley and the crankshaft pulley (it also ties the water pump pulley, so on classic front wheel drive cars only, the timing belt ties to the pump pulley), so when the alternator belt breaks on the classic, your units won't will work (because all the energy will come only from the battery, but if the battery is charged or powerful enough, even the devices will not turn off for some time and you will not even be able to understand that the belt is broken) if not for the pump I don’t really understand, but how create a belt, it also binds the coolant, stops circulating through the system, and therefore the car will be very warm.

To replace the belt, you will need to take: mounting blades (if not, find a convenient thick stick or a small crowbar), as well as wrenches, one of which will be required for “17”, and the other “for 19”!

Where is the alternator belt located?

It is located in front of the car, if you look closely you can see the cooling radiator in the photo below, we have also indicated the strip where the battery should be (removed) with a red arrow, and now the strap connecting the same three pulleys shown in the photo is narrower blue arrows.

When do I need to replace the alternator belt?

When it wears out, it needs to be replaced, so if it shows cracks of different types, as well as edges, such as heavily worn teeth, worn teeth, etc., this belt needs to be replaced and we do not recommend tightening it. If you turn it, if it breaks, firstly, your engine will start to heat up and boil over time (at high heat) and the battery will start working on its own (for a long time the battery will be the last one to work, but not least in this situation it will quickly discharge), since the generator will no longer rotate and, accordingly, will not supply energy, will also disappear.

Have you ever heard a car whistle? Or rather, not the car, but something in the engine, that’s all, the alternator belt , it can whistle for various reasons, for example, if it is worn out, it whistles, as well as water or any liquid that gets into it (sometimes coolant liquid enters it, mainly when the cooling system pipes are worn out and start. For flow around in this case, check the belt itself and its pulleys for moisture, this is absolutely not necessary, otherwise the problem is solved), it depends on the quality of the belt, i.e. depending on whether it is oak (it is still seasoned in the cold), then this whistle will also disappear, which is why most cars when landing in winter and the top whistle (belt whistle), and also when the car warms up, the whistle disappears, and, as a rule, , low voltage and excessive wear, the belt can wear out! (By the way, if you think the belt is still in good condition, but it is squealing due to low tension, then adjust it, see how to do it in the same article that you read, you will understand how to do it)

Something else you need to know is if you happen to have a breakaway belt on the road and you don't have a spare, you can resort to using a belt or tie, watch the video below for more details:

Replacing the VAZ-2107i alternator belt

More details: 2107

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Replacing the VAZ 2107 alternator belt

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How to replace the alternator belt on a VAZ 2101-VAZ 2107?

1) To perform the belt replacement operation, you need to have access to the bottom of the car and the top in this case, so if you have a crankcase at the bottom, you will need to remove it accordingly, see how to do this. This is in the article: “Replacing the protection housing on a VAZ. "

To make it more convenient you can still remove the battery from the car, if not you will have better access to the belt, if you don't know how to remove the battery then read the article: "Replacing the Battery in Cars" this covers it all !

Replacing the Alternator Belt VAZ 2107 Injector

Replacing the alternator belt on a VAZ 2101-VAZ 2107

Where is the alternator belt located?

When do I need to replace the alternator belt?

Something else you need to know is if you happen to have a breakaway belt on the road and you don't have a spare, you can resort to using a belt or tie, watch the video below for more details:

Replacing the VAZ-2107i alternator belt

More details: 2107

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Replacing the VAZ 2107 alternator belt

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How to replace the alternator belt on a VAZ 2101-VAZ 2107?

How to Tension the Alternator Belt of a VAZ 2107 Injector

How to replace an alternator

?
VAZ- 2107 injector
A belt is necessary to connect the generator and crankshaft pulleys, as well as on classic models with front wheel drive; the kit also includes a water pump pulley.

Replacing a broken or strained alternator belt in a VAZ-2107

not so difficult for an injection engine that has an additional carburetor.

To do this you will need:

a mounting knife, which can be replaced with a crowbar or a strong flat stick;
Keys for 17 and 19 year olds.

This is enough for repair work. Of course, if you have at least an idea of where this belt is.

If the VAZ-2107 has an alternator belt

In front of the car, under the battery, which must be removed when replacing a torn element.

The belt pulleys are quite difficult to access but must be removed.

In what situations is replacement required?

Element wear is characterized by signs such as cracks or tearing blades, washed out teeth, and jagged edges. If you ignore such a poor condition of a very important element, it will overheat you when the engine overheats and boils, while the battery is running autonomously, which will lead to its rapid failure.

If there is heavy wear, the strap will also show signs of wear. starts to whistle, especially at low speeds. Another reason for a whistling tape may be moisture getting into its fabric, which is associated with wear and tear on the cooling system connections. antifreeze begins to leak.

Maintenance and repair of VAZ cars at the “AUTO-MAXIMA” car service center

Auto-service "AUTO-MAXIMA" specializes in servicing and repairing Lada cars. Qualified craftsmen with extensive experience are ready to perform various types of work. Contacting a specialized car service center with experienced specialists will save your time and money.

If you notice a malfunction in the operation of your car, do not delay in contacting car service specialists, who will help not only identify the cause, but also eliminate it efficiently. One, even minor, breakdown can lead to a more serious problem and failure of the entire vehicle component. We have no doubt that every car owner can figure it out and carry out repairs on their own, but without knowledge and experience it will be extremely difficult for you to do this.

Entrust the repair and maintenance of your car to experienced specialists and you will not have to overpay for repairs.

Auto-service "AUTO-MAXIMA" provides a wide range of services for the repair and maintenance of VAZ cars in Moscow:

Car diagnostics;
Engine repair;
Engine overhaul;
Manual transmission repair;
Automatic transmission repair;
Turbine repair;
Injection pump repair;
Injector repair;
Starter repair;
Generator repair;
Car chassis repair;
Replacing the timing belt;
Replacing the timing chain;
Change of oil;
Car maintenance.

Our car service specialists will cope with breakdowns of any complexity. For this we have specialized equipment and experienced craftsmen. If you need maintenance or repair of a VAZ car, then call and come, we are always ready to help. We will promptly and efficiently eliminate all faults and give all the necessary recommendations.