VAZ 2109: replacing the alternator belt on your own

Greetings, dear site visitors, If you are on this page, it means that you are interested in information on how to replace the VAZ 2110 alternator belt.

Be 100% sure that you have come exactly where you need to go. Here is a detailed illustrated guide to belt replacement. This article is not limited only to the VAZ 2110 model, but completely covers the entire tenth family, taking into account Priora and Kalina.

I will list the main points that will be discussed in this guide.

• Why does the alternator belt whistle?

• What are the sizes of VAZ 2110-2115 alternator belts used.

• Replacement of the VAZ 2110 alternator belt.

• How to tension the VAZ 2110 alternator belt.

Using this guide, you can do all the work yourself without much effort. Believe me, there is nothing complicated.

The VAZ 2110 alternator belt whistles, why?

Why does the belt whistle? There are several reasons: weak tension, moisture got into the V-belt connection (very rarely), drying out (destruction), and the generator wedge was leaking.

All of the above points can cause the belt to whistle.

Let's take a closer look at each of the reasons.

If the belt tension is weak, slipping occurs in the V-belt joint, this is especially noticeable when operating the car at night, when the lights are on. The generator produces more power, which means the load on the V-belt connection (belt, pulley) increases. Slipping is what causes the whistling sound.

Cars with installed power steering or air conditioning are very susceptible to this phenomenon. This is described in detail below in the section on belt tension.

The ingress of moisture often does not lead to a whistle, but rather to belt slipping. When slipping, the heat evaporates moisture and may whistle a little. This indicates that the belt needs to be tightened.

If the belt dries out, it means that destruction is underway. Cracks, scuffs appear on the belt, and pieces may even fall off; all these signs indicate that the belt needs to be changed urgently.

Belt selection and replacement


VAZ 2109 alternator belt tension

Before replacing the belt, you must carefully inspect all products offered for sale. There are low-quality rubber products on sale. Therefore, first of all, you need to trust trusted retail outlets.

Note. When you buy a low-quality belt, problems arise with charging the battery. Because no matter how much you tighten it, it still stretches. Also, such a product begins to produce an unpleasant whistle when starting the engine or while the car is moving.

Therefore, when buying a belt, it is always necessary to choose a quality product. Several manufacturers are represented on the Russian market. Domestic:

  • factories of rubber products in Balakovo, Volzhsky.

Foreign:

  • concern from Germany Contitech. You can name others, but you shouldn’t.

Tools


VAZ 2109 alternator belt size

To carry out the work, you need to prepare tools and accessories:

  • open-end wrench No. 17, No. 19;
  • also two heads No. 13, No. 17, No. 19;
  • metal brush;
  • rags;
  • 200 grams of gasoline;
  • metal ruler;
  • corner piece 30 cm;
  • in cloudy weather - carry with a protective net;
  • latex gloves,
  • cotton gloves

Removing and installing the belt

Need to:

  • Place the car in a garage with an inspection hole.
  • Open the engine compartment hood and place a support.
  • Disconnect the negative terminal from the battery.
  • Go down into the viewing hole.
  • Clean the installed protection bolts with a wire brush.
  • Unscrew the engine crankcase protection bolts using a wrench or socket No. 13.
  • Carefully remove it and put it aside.
  • Clean the threads on the through bolt of the generator mounting.
  • Use a wrench or socket No. 19 to loosen the fastening nut.
  • In the engine compartment, loosen the generator adjusting nut on the bracket.
  • Move the generator towards the engine.


Replacing the alternator belt

  • Remove the belt from the generator pulley and crankshaft.
  • Wear rubber gloves.
  • Moisten a rag with gasoline.
  • Wipe the generator pulley, as well as the crankshaft pulley, from accumulated dust and the results of the rubber belt.
  • After 20 minutes, put the belt on the two pulleys.
  • After installing the belt, remove the generator (see Repairing the VAZ 2109 generator easily and simply) from the engine (you can use the prepared corner to ease the effort).
  • Screw in the loosened fastening nuts (do not tighten them to the limit, but only tighten them).

Alternator belt dimensions VAZ 2110-215, Kalina, Priora

There are a lot of sizes of alternator belts, it seems that they made a separate belt for a specific model, but there are several sizes that are most often used and are suitable for all models of the tenth family.

Let's start, perhaps, with the general model of a wide multi-ribbed belt, which was installed on standard VAZ models and the first generators:

• VAZ 2108 – VAZ 2115 size – 698 mm.

Models without power steering and air conditioning:

• VAZ 2110 – VAZ 2112 size – 742 mm.

Next is the Kalina VAZ 1118 option:

• Without power steering and air conditioning Size – 882 mm.

• With air conditioning, size – 1005 mm.

VAZ 2110 – VAZ 2112, as well as VAZ 1118 (Kalina), VAZ 2170 (Priora) with power steering:

VAZ 2110 with air conditioning:

These are the most basic sizes that will definitely fit a particular brand.

VAZ car drive generator belt

Drive belt for power steering, alternator, timing belt and air conditioning...

Hello dear blog readers of RtiIvaz.ru. Let's talk today about the generator drive belt, an auto repair kit that should always be kept in stock. A drive belt is effectively a cheap means of rotating a transmission, which is created by the movement of an auxiliary shaft to the engine and engine components, such as a generator.

rubber One drive belt drives several units at once: generator, pump, timing belt, power steering pump, air conditioning compressor, radiator fan. During operation of the vehicle, it is necessary to regularly check the condition of the tires, as well as the tension. To avoid engine damage, you need to replace the rubber parts in accordance with the repair kits and the machine maintenance instructions. Video:

rubber car drive belts, simply put, come in several types - wide, narrow, toothed, each smooth car has its own size and shape. To reduce wear on the side parts and provide integrity, wrapped materials are used; cotton is used with nylon as the outer covering. Toothed belts provide the force of the transverse teeth and the drive mechanism, predetermined by maintaining the location of the shafts. During operation, it is recommended to lubricate them with oil; they actually do not vibrate or stretch, and last longer than smooth ones.

With the improvement of technology, various types of repair kits began to be produced. injection For cars, multi-strand wide ones are produced, which consist of several drive belts welded together. Due to this design, the load is distributed evenly between the streams; as a result, rubber repair kit products have an increased vehicle service life. It can simultaneously rotate the power steering, generator, and air conditioning compressor pulleys.

The V-belt is designed to accurately match the rotation speeds of the pulley units. Double-sided V-belts have good driving properties. To transmit high powers, poly-V-ribbed rubber drives are used, which have teeth at the bottom and flat teeth at the top.

Before you buy Lada car belts or other repair kits for rubber products, you need to look at parameters such as profile, width, quantity, tooth pitch, good quality, length and width dimensions must correspond to the brand of the one being used. Photo.

How to tighten the alternator belt on a VAZ 2110?

Adjustment is very simple. Using a 10mm wrench, tighten the bolt on the tensioner until, when you press your fingers on the belt between the pulleys, the deflection is approximately 6 - 10 mm. The pressing force is not great. If you have a special measuring ruler, then with a force of 10 kgf the deflection should be within the range of 10 - 15 mm.

On VAZ cars with power steering or air conditioning installed, the tension should be a little larger. When pressing with your fingers, the belt should bend by 5 mm. All this is done so that the belt does not slip, because the contact area between the belt and pulley is not large.

But you need to remember that you can’t overtighten either, because the generator bearings will quickly fail. Here's a design with a surprise.

When to replace

The VAZ 2109 alternator belt is replaced every 10-15 thousand kilometers or after six months of operation of the vehicle. Such recommendations are given in all technical applications for vehicle operation. The alternator belt on a VAZ 2109 is replaced when rips, peelings of rubber and the top fabric covering are detected on it, which are formed when lubricating oil gets on it. Therefore, it is so important to replace the belt on time and constantly inspect it. The generator charging pulley rotates through the belt. The principle of operation of the generator is the conversion of mechanical energy into electrical energy; simply put, the battery is recharged. Because of this, the belt plays the most important role in the operation of the machine. When it is stretched and incorrectly adjusted, the battery is not fully charged.

Note. A broken belt can cause irreparable damage to the engine. Under good circumstances, it will simply break and fall. But it may wrap around the crankshaft along the pulley. And this, in turn, can cause the engine to jam, especially at high speeds.

Replacing the generator drive belt 37.3701 for VAZ 2108, 2109, 21099 cars


On VAZ 2108, 21081, 21083, 2109, 21091, 21093, 21099 cars with a 37.3701 generator, it is recommended to replace its drive belt once every 30,000 km. Check tension and condition once every 15,000 km.

Necessary tools, accessories and spare parts - Socket wrench or socket "17"

— Socket wrench or socket “19”

— Mounting tool or large screwdriver

— New generator drive belt 37.3701

— Steelyard (kantarik)

Preparatory work - De-energize the generator (remove the “negative” terminal from the battery terminal)

The procedure for replacing the alternator drive belt 37.3701 for VAZ 2108, 2109, 21099 cars

The 37.3701 alternator drive belt is tensioned on the alternator pulley and on the engine crankshaft pulley (which drives it), so we will have to loosen its tension, then remove it, install a new belt and adjust the tension.

— Loosen the nut on the bolt securing the generator to the bracket


We unscrew the nut of the lower fastening of the generator.
We use a head or a spanner with a size “19”. On VAZ 2108, 2109, 21099 cars, access to the nut is possible from the engine compartment. There is no need to remove the protection and mudguards of the engine compartment. We do not completely unscrew the nut, but only loosen it a little.

— Loosen the nut securing the generator to the tension bar


Loosen the top nut securing the generator.
Use a socket wrench or a socket on “17”. Access to the nut is also free. We do not completely unscrew the nut, but only loosen it a little.

— Move the generator towards the engine

You can move it by hand, or you can use a screwdriver by inserting it into the hole in the tension bar and using it as a lever. We move the generator towards the engine by 3-4 cm. This will be enough to loosen its tension and remove it from the pulleys.

We move the generator towards the engine and remove the drive belt from the pulleys

— Remove the old generator drive belt

We remove it by hand from the generator pulley, and then from the pulley on the engine crankshaft.

— Install a new belt

We put the new belt on the engine pulley, and then on the generator pulley.

— Adjust the tension of the generator belt 37.3701

We insert the mounting blade from above, between the generator and the engine (see photo at the beginning of the article). Using the mount, we move the generator away from the engine using it as a lever. While holding the belt taut, check its tension with your finger. It should bend three to five millimeters with a little effort. Tighten the nut securing the generator to the tension bar.

— Check the tension of the generator drive belt

An overtightened belt will damage the generator bearings; an undertightened belt will slip and the generator will not produce electric current. Therefore, it is necessary to more or less accurately adjust the belt tension.


Checking the tension of the generator belt 37.3701

We hook it in the middle with a steelyard hook (kantarika). We pull the steelyard upward applying a force of about 10 kgf. The belt deflection should be within 10-15 mm relative to its original position (the value is specific for generator 37.3701, for other generators it is different).

If the obtained value is less or more, slightly loosen the nut and tighten or release the belt, moving the generator. We check the tension again.

— We finally tighten the nuts of the upper and lower mounting of the generator

The tightening torque of the upper nut is 28-45 N.m, the lower nut is 58-72 N.m.

Thus, the replacement of the alternator drive belt 37.3701 of VAZ 2108, 2109, 21099 cars has been completed.

All that remains is to start the car engine and see if the battery discharge warning lamp on the instrument panel goes out.

Notes and additions

— Replacing the alternator drive belt 9402.3701 for VAZ 21083, 21093, 21093 cars with an injection engine differs from replacing the alternator belt 37.3701. Details: “Replacing the drive belt for alternator 9402.3701 for VAZ 21083, 21093, 21093 cars.”

— Signs of wear on the alternator drive belt are: lack of or decreased battery charging (the light in the instrument panel is on or blinking), decreased brightness and “flickering” of the car headlights, “whistle” from the belt slipping on the pulley when driving. Visually, the belt may have defects: cracks and delaminations. If it is stretched, it will not be possible to achieve its normal tension through adjustment.

— You can determine the degree of belt tension by hand, creating a tension force without using a kantarik. But this requires some experience, so the easiest way is to use a cantarik.

More information on the topic in our VKontakte group -
Twokarburators VK , on ​​Facebook Twokarburators FB , as well as in Odnoklassniki - Twokarburators OK

More articles on generators for VAZ 2108, 2109, 21099 cars

— Replacement of generator bearings for VAZ 2108, 2109, 21099 cars

— Complete disassembly of generator 37.3701 of VAZ 2108, 2109, 21099 cars

— Assembly of generator 37.3701 for VAZ 2108, 2109, 21099 cars

— We connect the wires to the generator of VAZ 2108, 2109, 21099 cars

— How to remove the generator VAZ 2108, 2109, 21099

— A car generator howls, reasons

— Why does the battery discharge lamp come on at idle and go out at rpm?

Comparative test repair

— Replacing the alternator drive belt on a Renault Logan 1.4 car

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