Niva 2131: technical characteristics of a 5-door car

About the belt

All belts are different; the Niva 2121 uses a V-belt, while more modern Nivas such as Urban and Chevrolet use a poly-V-belt. The poly V-belt has a larger contact patch and is more resistant to wear.

The length of the belt depends on the number of attachments; if the car has air conditioning or power steering, the belt will be significantly longer than in a Niva without additional options.

Generator replacement

To repair or replace the generator, the car owner will have to remove the unit completely from the car or turn to professionals for work. If you still want to carry out the replacement yourself, then first you will need to prepare all the necessary tools:

The procedure consists of the following sequence of actions:

The structure is assembled in the reverse order; the entire procedure will take about two hours if you have all the necessary tools.

Also interesting: Niva Chevrolet steering tips

Additionally, it is worth noting that when everything is assembled, you will need to adjust the position of the generator using the tensioner. To do this, you need to unscrew the tensioner nut and tighten or loosen the belt, while observing the battery charge.

If the indicator returns to normal, then the selected tension is sufficient. There is no need to tighten the structure, as the generator bearing may fail. If the tension is insufficient, the generator will work intermittently, and this can also lead to breakdown.

Alternator belt Niva 2121 (carburetor)

The belt in such a field is slightly longer than in a field with an injector and power steering due to the fact that the belt drive also rotates the cooling fan with a pump. In the injection Niva, the cooling fan starts automatically.

Replacing the VAZ 2121 Niva alternator belt. Photos, instructions on how to change the alternator belt on a Niva

This photo report shows in detail how to replace the alternator belt on a VAZ 2121 Niva . On average, the original alternator belt runs about 100 thousand kilometers, which is known from the reviews of many owners of this car.

It is important to understand that after replacing the belt with a new one, its lifespan may be slightly shortened, since a good belt is difficult to find.

Of the necessary tools, we only need a regular 17mm wrench, or you can take a ratchet wrench and a 17mm socket for it.

You can also check out our photo report on replacing the generator on a VAZ Niva

for repair of VAZ (Lada) 2121 (4x4)

Alternator belt Niva 21213 (Injector, power steering)

In this car, the generator drive also rotates the power steering pump.

Niva Urban generator belt

Niva Urban is a more modern modification of the Niva with plastic bumpers. A poly V-belt is used here as a generator drive.

Niva Chevrolet

This car is significantly different from the classic Niva, therefore. and its components are completely different. In the Chevy Niva, the air conditioning compressor is driven by a separate belt. The alternator belt rotates the power steering, alternator and pump. Due to the large amount of equipment, the belt length is quite long.

Niva Chevrolet air conditioner belt dimensions

Nuances

When replacing a generator with a Niva 21213, 2121, 21214, a number of subtleties arise, and one of them is the location of the generator unit. It is located at the bottom of the engine compartment.

Actually, this is why problems arise with the operation of the structure: while driving, various contaminants get on the generator, and coolant drips. If you don’t want to constantly change the generator unit, it is recommended to move it upstairs.

To ensure that no problems arise during the operation of the car, it is important to monitor the condition of the car. First of all, it is recommended to regularly inspect the generator.

So, when the “battery” light blinks on the dashboard, if suspicious noises or creaking sounds occur, you should be wary and think that the generator is not working correctly.

Timely inspection will help to avoid unpleasant situations in the form of breakdowns of the constituent elements of the generator, and as a result, failure of entire electrical systems.

Read news about the new Niva

Air conditioning compressor drive belt 2123-1041150 Chevrolet Niva, 4PK812 Dayco

4PK812 - 4 grooves, length 812 mm.

Catalog number: 2123-1041150.

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Postal commission for cash on delivery service:

· up to 1,000 rub. inclusive - 80 rub. + 5% of the amount

· over 1,000 to 5,000 rubles. inclusive - 90 rub. + 4%

· over 5,000 rub. up to 20,000 rub. inclusive -190 rub. + 2%

· over 20,000 rub. up to 500,000 rub. inclusive - 290 rub. + 1.5%

Attention! Advance payment for delivery 100% (via Sberbank payment). This is included in our Cash on Delivery terms.

Check with the manager for additional information.

Yandex money.

This payment method involves issuing an invoice in the Yandex.Money system.
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This payment method is intended only for legal entities and individual entrepreneurs. After placing your order, send your organization details to [email protected] In the subject line of the email, please include your order number.
After this, the manager will send an invoice via email in the prescribed form. We work without VAT. Payment method commission - 6%
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After submitting your order to the terminal of the transport company/Russian post office, a track number will be sent to the phone number and email specified in the order, if available, to track the parcel.

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Delivery terms

5-21 days depending on the distance of your locality from Togliatti,
cost
from 250 rubles.
depending on the weight, distance and declared value of the parcel (order). 100% prepayment of delivery in advance excludes commissions charged by the post office for cash on delivery.
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Delivery by Russian Post (1 CLASS)

Delivery terms

5-21 days depending on the distance of your locality from Togliatti
100% Advance payment of ORDER + DELIVERY
.
cost
will be announced by the manager when confirming the order. Official delivery website: https://www.pochta.ru/

Russian Post (payment upon receipt)

Delivery terms

5-21 days depending on the distance of your locality from Tolyatti
Cost
from 250 rubles. depending on the weight, distance and declared value of the parcel (order). Official delivery website: https://www.pochta.ru/

Post EMS (courier)

EMS company

is a division of Russian Post, part of the global EMS (Express Mail Service) system. Express delivery worldwide.

Delivery terms

from 3-7 days.
Cost
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Delivery by transport company

Delivery by one of the transport companies with a representative office in your city. Delivery time: 2-10 days depending on the distance of your locality from Togliatti. The most convenient and fastest way to deliver orders of different sizes. Delivery cost from 250 rub. depending on weight and delivery distance.

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The lead time for placing orders and “made to order” items is from 14 days; you can check with the manager for more detailed information.

Orders for pickup are placed on the website, the formation time is on average 1-4 business days, after the items arrive at the pickup point, the manager will notify you when you can receive your order.

ATTENTION! All fragile goods (headlights, plastic products, glass, etc.), by default, are sent in additional paid packaging from TK. If you take responsibility for the integrity, we can ship without it. To do this, you need to make a note in the comments when placing your order. For additional information, please contact the managers.

Belts

Drive belt for generator-pump and power steering. I will never forget this story. It began with the department purchasing 50 short Nivs. After 5 thousand km. Belts whistled in unison. She herself announced the approach of a car with a high-frequency whistle, which, as it sometimes seemed to me, was louder than the sounds of the engine. The factory and manufacturer recommended tightening the belts. But I already felt what this would lead to. I dropped everything and started looking for a normal belt. On those cars where they didn’t listen to me and “tightened” the belt, more than once or twice, either the pumps or the generator bearings very quickly fell apart.

Bosch V-belt, 950 mm

I draw your attention to the most important thing: the belt should be toothed, not solid. The average service life of these belts before replacement is about 50-60 thousand km. They will not tear and will continue to stand, but they will no longer be “quite rubber”. In good climatic conditions in the middle zone, they last longer, but if we take the “resort places” of our homeland (Yamal, Yakutsk), then they are simply changed once a year as a consumable. Important: on cars with power steering, the second belt is the same if the pump is Russian-made. And 10 mm shorter if the hydraulic pump is purely German. A nameplate with a large number of German letters is glued to the German pump. The ZF mark is there both here and there.

Poly V-belts for Shniva. A small digression: it makes me smile when I look at the Shnivovodov forum once a year. Several posts are devoted to this topic (belts). With foam on his lips, a man from Moscow proves to a man from Vorkuta how different belts differ from each other. Not knowing and not understanding that in Vorkuta there is ONE belt in the store and no one is talking about what can be supplied (this is a specific story told to me by a Vorkuta resident).

Chevrolet Niva belts, drive units and air conditioning

In general, there are about 5 manufacturers of this product. The main two are Contitech and Gates. Without an alternative, it's Gates. There is a little thing here called experience and rake. I brought Contitech belts to different cars, being confident in their quality. And the owners tell me that they either whistle or have cracks. On the third case of marriage, I decided to get to the bottom. All these belts were made in a Romanian factory. It is also used to make the drive belt for the Shniva. The conclusions are yours. For the ShNiv with air conditioning, without further ado, I found a German Bosch.

Chevy Niva belt size

The generator belt has an important purpose - it transmits torque from the engine through the crankshaft to the generator. The latter charges the battery and maintains the functionality of all electrical equipment of the car. On an engine with air conditioning, it rotates the compressor clutch and other accessory drives.

Rollers

Drive belt tension roller and parasitic roller. Here, perhaps, only one thing needs to be said: the cause of failure of drive belts in most cases is the rollers. As soon as the bearing or the plastic on the bearing begins to play, immediately after this the belt begins to “eat”. I didn’t see all kinds of rollers in the store: both blue and green ones))) I’ll just say that while GM controlled deliveries to the assembly line, rollers from the German company INA were installed on the engines. You can find a German video in stores and sellers, but be careful. The INA manufacturer's name must appear on both the bearing and the plastic part of the roller.

Source

Characteristics of the standard belt

The alternator belt on the Chevrolet Niva - VAZ 2123 - has the factory designation 6RK 1888. Its dimensions are: length - 1888 mm, width - 21.5 mm, number of longitudinal ribs (streams) - 6 pcs. The poly-wedge type product can withstand loads of over 250 kg and has an elongation coefficient of no more than 0.7%.

The drive belt wears out over time and needs to be replaced. According to the maintenance regulations, this part must be changed every 50 thousand kilometers. You should not rely only on this figure - it is an average.

If the quality of the product is low, then it can either stretch or break after 20 thousand km, but a good quality belt will last all 70 thousand km. The service life is affected not only by mileage, but also by other factors. If there is mechanical damage on the drive pulleys, then over time the belt will become unusable.

According to the maintenance regulations, the belt on a Chevrolet Niva must be checked every 15 thousand kilometers.

If the following factors are detected, the product must be replaced:

• signs of wear (irregularities, cracks, abrasions, etc.);
• oil stains;
• individual threads are visible at the ends;
• the material peels off from the base.

A malfunction can be determined by characteristic signs:

• at high engine speeds a strong whistle appears;
• the battery charge indicator lights up on the instrument panel;
• consumers of electricity from the on-board network stop functioning.

If the belt breaks completely, the car cannot be started. To avoid this on the road, it is better to stock up on a new product in a timely manner and always carry it with you.

Removal and installation of the generator of the injection engine Niva 2121, VAZ 2131, Lada 4x4

Generator device Niva 2121, Niva 2131, do-it-yourself repair

Disconnect the negative cable from the battery. Remove the oil pan protection plate and the right mudguard of the Niva 2131 engine (see Removing the oil pan protection plate and injection engine mudguards).

Disconnect the output wire “D” of the generator.

Having moved the rubber cover, use a 10mm wrench to unscrew the nut securing the wires to terminal “B”...

Remove the VAZ 2131 coolant pump drive belt (see Adjusting the tension and replacing the coolant pump drive belt).

Using the “13” socket, unscrew the nut of the bolt securing the generator to the tension bar.

Using a 13mm wrench, unscrew the nut of the bolt from the lower mounting of the generator to the bracket on the cylinder block and remove the bolt. We take the generator out of the engine compartment downwards.

Having unclenched the three protrusions of the casing,...

Using a Phillips screwdriver, unscrew the two screws...

...and remove the voltage regulator with the brush holder.

Disconnect the wire and remove the voltage regulator with brush holder.

Use a 10mm wrench to unscrew the nut...

Replacing the NIVA alternator belt. Alternator belt after 25 km. on NIVA 21214

on NIVA

VAZ
21214
with power steering is changed after removing
the belt
from the power steering

Replacing the NIVA VAZ 21214 power steering belt. Tensioning the NIVA power steering belt

Niva power steering

5 minutes. The pump bearing and seal will fail faster if...

...remove the sleeve and capacitor wire.

Using a Phillips screwdriver, unscrew the screw...

Using a Phillips screwdriver, unscrew the screw securing the rectifier unit and the three screws securing the ends of the stator windings.

The screws securing the ends of the Niva 2121 stator windings are equipped with insulating washers.

We remove the ends of the stator windings...

...and remove the rectifier block.

Using a 21mm spanner, unscrew the pulley mounting nut, holding the rotor with a 8mm hexagon.

Remove the washer and pulley parts.

Remove the washer from the rotor shaft.

Using a Phillips screwdriver, unscrew the four screws holding the covers together.

Using a sharp scriber or paint, we mark the relative positions of the covers and the stator for subsequent assembly.

...we disconnect the front cover with the stator and the rear cover with the rotor.

Using a screwdriver, pry up the stator of the VAZ 2131.

. remove it from the front cover.

Using a drift that rests strictly on the end of the rotor shaft (so as not to damage the plastic bushing located under the slip rings),...

...knock out the rotor with the bearing from the back cover.

Using a puller, we press the bearing from the rotor shaft of the Niva 2121 generator.

We press the new bearing onto the shaft using a suitable piece of pipe, applying force to the inner ring.

Using a tester, we check the stator and rotor windings of the Niva 2131 generator for an open circuit or short circuit to the housing.

How to replace a belt on a Niva Chevrolet

It is recommended to buy belts from well-known brands, the quality of which has been tested by time. The layout of the drive mechanisms is shown in the photo.

To work you will need a tool:

• screwdriver;
• jack;
• set of socket wrenches;
• mounting blade.

First, disconnect the battery terminals to prevent possible electrical short circuits.

If the car does not have air conditioning

Replacing the alternator belt on a Chevrolet Niva is carried out as follows:

1. The on-board network must be de-energized; the battery terminals must not accidentally close the circuit.
2. The terminal block is disconnected from the crankshaft position sensor, then the mounting bolt is unscrewed and the sensor is removed.
3. The drive is removed from the power steering pump.
4. The fixing nut on the generator mounting plate is loosened, after which the device can be moved towards the engine - for convenience, use a mounting spatula.
5. The belt tension will loosen and it can be removed. To dismantle it, you will need to hang the left side with a jack and put the gearshift lever in fifth gear.
6. By pulling the branch from the coolant pump pulley, the front wheel rotates, and the pull gradually moves onto the generator and crankshaft pulley.
7. Rotate the water pump pulley and remove the belt completely.
8. Installation of a new part begins with installation on the crankshaft pulley, after which it is put on the generator pulley and partly on the pump pulley.
9. The wheel rotates again until the belt is seated on all the pulleys.
10. The mounting blade returns the generator to its previous position.

All that remains is to check the tension and tighten the nut securing the unit to the plate. The crankshaft position sensor is installed and connected last.

If the engine is with air conditioning

If the car is equipped with air conditioning, an additional compressor pulley is added. To replace, you will need to install the car above the inspection hole or lift it on a lift, then remove the engine crankcase protection:

1. Using a 13 mm wrench, unscrew the 4 bolts securing the protection, after which it can be removed.
2. Using an 8 mm wrench, unscrew the screws holding the protection boots.
3. The front mudguard is removed.
4. The deviation of the belt tension force between the compressor and crankshaft pulleys should not exceed one centimeter; to check, you need to press it by hand.
5. To replace, loosen the bolts securing the tensioner roller. If the air conditioner belt only needs to be tightened, then the roller bolt is turned clockwise, thereby tightening it.
6. If replacement is needed, the bolt is unscrewed counterclockwise - the strap will loosen and can be removed.

Further assembly and installation of a new belt is carried out in the reverse order. During installation, it should be taken into account that the part must be put on so that it is closer to the inside of the drive pulley.

Individuals and probable causes of alternator belt whistling

In order to “cure” the problem, you must correctly understand the intricacies of the generator’s operation and the possible causes of the malfunction. Also read the article on how to check the diode bridge of a generator.

The main purpose of the generator is to power the vehicle's electrical equipment. But how is constant rotation of the rotor ensured?

There are special pulleys on the engine crankshaft and the generator shaft on which the belt is tensioned. After starting the engine, the crankshaft begins to rotate, driving the generator rotor.

The occurrence of a squeak is due to excessive friction of the belt on the generator pulley (crankshaft) or ordinary slipping.

With all this, in practice, the reasons for squeaking and whistling may be the following:

• Excessive belt wear. From time to time even additional tension does not help.
• Various liquids (antifreeze, oil, etc.) get on the generator pulley (crankshaft) or specifically the belt.
• Low belt property.
• Bearing wear in the generator.

This malfunction most often manifests itself with excessive weights. The bearing may whistle or rattle. In such a situation, only replacement with your own hands or at a service station can help out.

Tension adjustment

Installing the part is not enough; it is also important to know how to properly tighten the alternator belt on a Chevrolet Niva. If the tension is weak, the generator will not be able to operate normally and the battery will not receive an insufficient charge level. As a result, the battery will quickly fail. If you overtighten the belt, the alternator bearing will quickly wear out, as will the coolant pump bearing. The permissible deflection when pressing should not exceed 15 mm between the generator pulley and the pump.

Adjustment is carried out by moving the generator forward or backward. By moving the unit towards the engine, the tension is weakened, while away from the engine, on the contrary, it increases. To perform the work you will need a standard set of tools, the sequence of actions is as follows:

1. Remove the engine protection and protective mudguards on the left.
2. Using a wrench or socket, loosen the nut securing the generator to the plate and the mounting nut of the bracket.
3. Using a mounting blade, move the generator towards the engine to loosen it or away from it to tighten it.
4. Without loosening the force, tighten the bracket fastening nut, and then the adjusting plate fixing nut.

After this, the engine protection and mudguard are installed in place. The work on adjusting the tension is now complete. After 300-500 km, a control check of the tension level is carried out, and if necessary, it is adjusted.

Also, after replacing the belt, it is recommended to start the engine and turn on the maximum number of electrical consumers (high beam, heater, high speed). No extraneous noise should be heard from the part.

The work of replacing and tensioning the alternator belt on a Chevrolet Niva can be done by any car owner with his own hands. It is not necessary to contact a specialized car service for this. By following the step-by-step instructions, you can replace the product in 10-15 minutes without much effort.

Alternator belt size for VAZ 21214 injector

We check the belt tension by its deflection between the pulleys of the units.

1. With normal belt tension, its deflection under a force of 98N (10 kgf) should be 10–15 mm between the pump pulleys and the generator

2. or 12–17 mm between the pump and crankshaft . We adjust the belt tension by moving the generator (with its fastening nuts loosened): from the engine to increase the tension or to the engine to decrease the tension.

3. To replace the belt, loosen the nut securing the generator to the tension bar with the “17” head on the carburetor engine.

4. or a “13” head – on an injection engine. We move the generator towards the cylinder block to loosen the belt tension.

Alternator belt VAZ 2101, power steering 21214, 2123 V-belt 944 toothed (LUZAR) LB0107

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