The generator bearings ensure easy rotation of the rotor around its own axis. Since they have to constantly experience quite a lot of stress, they wear out over time. Which, in turn, will first lead to a hum, and then failure of the unit. In this case, they need to be replaced with new ones. Therefore, motorists have a question: “ What bearings are on the VAZ 2110 generator ?”
Reasons for failure
There are many reasons for bearing failure, but there are several main reasons, which are discussed below.
Wear
On the left are old bearings, on the right are new bearings.
Wear is a typical cause of bearing failure, since the number of revolutions of the generator rotor is huge over the Nth period of time. Consequently, the lubricant in bearings under the influence of high temperatures loses its properties and the bearing ceases to receive the required slip coefficient, which causes heating and increased clearances in the ball part of the bearing.
Belt tension
Excessive tension on the alternator belt greatly affects the life of its bearings. It is necessary to tension the belt correctly, observing all norms. The generator belt should bend under the influence of 10 kg. by 5-7 mm.
Ways to solve the problem
If such a malfunction occurs, you need to solve the problem as quickly as possible. Basically, there are three main ways to do this.
- Seek assistance from specialists at the nearest service station.
- Replace the complete prefabricated generator, rather than trying to solve the issue with a more budget-friendly method.
- Purchase a new bearing for the generator and replace it yourself.
What nuances does one or another method presented above have?
- The first option is reliable, but requires costs not only for the part itself, but also for the expensive services of craftsmen.
- The second option is more financially accessible, but you will have to do quite difficult work.
- Option number three is the most difficult from the point of view of independent execution, but is the most budget-friendly. Consequently, you will be able to save an impressive amount of money.
So, you have decided to purchase new bearings and follow a difficult but fairly economical path. For cars like the VAZ 2114, self-repair is a common thing. Such work, even in the absence of impressive experience and knowledge, is not difficult to do. Simple follow the instructions.
- Disconnect the generator from the battery to deprive it of power.
- Remove the timing belt.
- Using wrenches of the appropriate size, remove the fastening nuts.
- The film is removed, after which the sleeve is removed.
- The generator itself is carefully removed from its seat.
Subsequent work is more subtle and complex. After all, you have to disassemble the generator in order to get to the bearings. The task is not an easy one, but you can handle it yourself.
- There are nuts on the generator housing that need to be unscrewed;
- Remove the cover and remove the regulator from under it. This element is responsible for brushes and tension;
- Disconnect the stator from the cover. This operation should be done as carefully as possible so as not to damage the copper winding;
- Sometimes the housing can become rusty, making the stator difficult or even impossible to remove. In such a situation, arm yourself with a hammer and an impact screwdriver. With the help of these tools it is necessary to deliver the most accurate blows. This way you will be able to divide the element into blocks;
- Separating the generator from the stator, you will see both bearings - front and rear;
- Remove the damaged component and install a new alternator bearing in its place. Don't forget that there are two of them. For prevention, you can replace both at once, even if one of them is in completely good condition;
- Assembly is performed strictly in reverse order.
Important Tips
There are several questions that you should know the answers to before you begin the job of replacing alternator bearings.
- Installation must be carried out using a special press. Theoretically, it is possible to install a new element in place of the damaged one with an ordinary hammer, applying directed blows to the bearing. But this way you can damage the new spare part, plus additional damage to neighboring elements.
- Make sure the new element is firmly in place. Only after this proceed with installing the pulley and impeller.
- When purchasing a part, ask the seller what kind of vehicle this particular bearing is designed for. These parts differ in size.
- During the replacement process, be sure to check the tension of the timing belt. If the tension is not strong enough, voltage sag may occur.
If the above operations do not produce results, you should look for other potential problems with the generator.
Consequences of a malfunction
A faulty bearing, like any other failure associated with generator components, leads to its malfunction. It is impossible to predict the consequences of such a breakdown.
Let’s just say that both an inadequate and an excessive charge pose a potential threat.
- If the alternator does not provide sufficient charge, the battery will quickly discharge, so you will not be able to start the car or go anywhere.
- If a charge is too powerful, the consequences are even sadder, since this puts the entire electrical circuit of your VAZ 2114 at risk.
Problems and solutions
There are several common generator problems that are more than possible to repair. Here you just need to follow certain recommendations and rules.
We invite you to familiarize yourself with the malfunctions and methods for solving them in the corresponding table.
Diagnostics
If noises and hums appear in the operation of the engine, it is necessary to check and find the culprit of the noise. Most often it is the generator, but in order to exclude other culprits it is necessary to diagnose it.
It is not difficult to independently check the condition of the bearings; this only requires compliance with the points described below.
- Remove the generator belt from the crankshaft and generator pulleys
- We start the engine and listen
- If the noises, whistles, vibrations have disappeared and the internal combustion engine is working properly and smoothly, then the culprit is definitely the generator bearings.
- You can also grab the generator pulley and shake it up and down; there should be no play. Turn the rotor manually, there should be no whistles or squeaks, the rotor should rotate smoothly and softly.
How to change bearings on a generator in a VAZ 2110 (Video)
Some novice motorists are sure that the source of energy in a car is exclusively the battery. But this is not so. The battery's job is to supply the necessary current to start the engine and provide power to the starter so that it turns the crankshaft.
The engine starts, and at this moment the electrical equipment begins to be powered by the generator. The quality of operation of electrically dependent equipment and timely recharging of the battery depend on the generator. If the generator breaks down, the entire load goes to the battery. Once it runs out of power, the entire car will be left without power.
In almost 90% of cases, generator failure is associated with its bearings. That’s why we’ll talk about them in more detail today.
Size and catalog numbers
These parameters of the ball bearing are necessary for purchase, since without these numbers it is very difficult to buy the right part suitable for your car.
The dimensions of the bearings varied depending on the year of manufacture of the car, so the selection of a bearing can be carried out based on the year of manufacture. auto.
Cars manufactured before 2001 with carburetor engines they have bearings of type 6302 front and 6202 rear.
Cars produced after 2001 with injection engines, have bearings type 6303 front and 6203 rear.
Catalog numbers (articles) and external dimensions
| Bearing, no. | vendor code | Dimensions, mm |
| 6303 | 180302 | 17*47*14 |
| 6203 | 80203 | 17*40*12 |
| 6302 | 180303 | 15*42*13 |
| 6202 | 80202 | 15*35*11 |
Imported or domestic
Belarusian 90-amp BATE and Japanese Denso generators have bearings of the same size.
Imported analogues of bearings have a slightly different designation, namely:
Most 80-amp generators have bearings of similar sizes, at least this applies to domestic ones. If the generator has already been replaced before you, then you may be faced with the fact that a generator from a different manufacturer is installed and the bearings are of different sizes. Depending on the generator manufacturer, bearings of other sizes are sometimes found, for example, in the fairly common Bosch 14V 53-98A 0124 415 038 generator, bearings 6003-2RS (rear) are installed, the dimensions of which are 17 × 35 × 10 and 6303-2RS (front) , respectively, 15×35×14. The same bearings can be found in other imported generators. However, there are options where the rear bearing is designated as 6000-2RS, and the front bearing – 6203-2RS.
In order to accurately determine the dimensions of the bearing, it will have to be removed. If the markings on the bearing are not visible, then it is best to turn to professionals (you should not trust a caliper).
If you have decided on the size of the bearing, then to the repeated question “What bearings are on the VAZ-2110?” The answer suggests itself - original!
The quality of bearings varies from manufacturer to manufacturer; some prefer to install bearings from domestic manufacturers on their generators, while others prefer imported ones. When repairing a generator, everyone decides this issue for themselves, but after listening to numerous tips, some car enthusiasts are inclined to choose imported ones. If you focus on price-quality ratio, many experts recommend DAS LAGER Germany. But there are other suppliers of quality bearings: the French company SNR; FAG is one of the leading companies in Germany; NSK is another major bearing manufacturer from Japan; NTN – Japan; Kouo - part of the Toyota concern of Japan; Kraft or BOSCH.
We also supply bearings from Chinese manufacturers, but the attitude of motorists towards generators and bearings from the Middle Kingdom is far from flattering. A bearing is considered original if it is approved by the vehicle manufacturer for sale on the market. It usually corresponds to what is (or was previously) supplied to the assembly line. The car manufacturer guarantees that these bearings will not let you down.
If you are considering various options, then all the bearings with the corresponding markings at first glance look the same, but after opening the package, you need to pay attention to the marking, which, in addition to the designation of the bearing itself, consisting of digital and letter designations, must contain an indication of the manufacturer and necessarily the country of origin. If this is not the case, then it is quite possible that it is a fake. In this case, the money lost will not be that big (most often up to 100 rubles per bearing). But you will lose significant time and nerves.
Replacement
To replace it, you will need to remove the generator from the car and some plumbing tools. It would also be a good idea to have a generator bearing puller. Having all the necessary tools, you can handle the job with basic mechanical knowledge.
Puller
The puller greatly facilitates bearing replacement work, saving time, effort and nerves. This device is a faithful assistant not only when working with a generator, but also with other car parts.
It consists of claws and a thrust bolt. There are a large number of different pullers, they are: two-jaw and three-jaw. In our case, when working with a VAZ 2110 generator, it is best to use a two-jaw one; it is the most compact and convenient to dismantle the bearing.
Its cost varies from 200 to 1000 rubles, depending on the quality of the part.
Necessary tool
The tools you will need to complete the work are presented below:
- Ratchet;
- 13mm, 10mm key;
- 21mm head;
- 8 mm hexagon;
- Gas key;
- Powerful screwdriver “+”;
- Hammer;
- Puller;
- Punch;
- WD-40 (lubricant)
- Rags;
- Marker;
Stages of work
1. Disconnect the negative terminal from the battery. We unscrew the wires on the generator with a 10mm wrench and remove the generator excitation chip.
2. We remove the generator from the car. To do this, unscrew the generator belt tension bolt and remove the belt, unscrew the generator from the mounts and remove it from the car. Be careful not to lose the rubber bushing and washers when removing the lower mounting bolt.
3. Let's start disassembling. Remove the plastic cover of the diode bridge by bending the three latches. Unscrew the two screws securing the brushes to the body and disconnect the connector from the brushes. We mark the alignment of the covers with a marker so that in the future we can assemble everything correctly.
4. Using a screwdriver, unscrew the screws of the ends of the generator winding from the diode bridge and bend them. Unscrew the screw securing the capacitor and separate the diode bridge from the generator.
5. We unscrew the generator pulley with a 21 mm socket, holding it with a gas wrench and holding the rotor shaft with an 8 mm hexagon. We take out the generator pulley and thrust washer.
6. Unscrew the 4 bolts of the cover and remove it along with the stator winding.
7. We take out the back cover by pressing the manifold with our fingers and pull the cover towards ourselves, remove the plastic bearing bushing.
8. Remove the bearings using a puller.
We assemble the generator in the reverse order.
Which bearings are better to install?
As a rule, KATEK brand generators were installed on cars of this model from the factory. It may also be suitable for spare parts from some other domestic and foreign manufacturers. It is not recommended to use original bearings from the Samara and Volzhsky plants (VBF and VPZ), as well as Chinese ones, due to poor lubrication and short service life. Products from German brands DAS LAGER Germany and FAG, French brands SNR, Japanese brands NSK, NTN and Kouo, as well as Polish Craft are considered to be of good quality.
Price of bearings for VAZ 2110 generator
The price of a VAZ 2110 generator bearing is very low. It starts from about 100 rubles for the rear and from 150 rubles for the front. Here a lot depends on the manufacturer of the parts. Russian-made spare parts are considered the cheapest. Products of foreign brands are more expensive, sometimes twice as expensive.
