Generator bearings for VAZ 2114 - sizes and numbers, symptoms of failure

In addition to the fact that a car is a means of transportation, it is also a source of a wide variety of sounds. Sounds can tell a lot to an experienced owner. Many can easily make a diagnosis without even opening the hood or looking under the bottom. It is enough, as an experienced doctor, to listen to the nature of the noise, and the malfunction is clear in the palm of your hand. Some nodes cannot be diagnosed any other way. This is especially true for bearings. Today we will be interested in the generator bearing.

Generator bearing and belt diagnostics

While the generator is running, with or without noise, it is rarely noticed. But as soon as it stops producing current, its absence is immediately noticed. The battery charging light comes on and the search for a fault begins. But it was enough to just listen to the sounds that the generator makes, and the trouble could have been avoided.

Replacing the VAZ 2114 generator bearing may be required as early as 60-80 thousand km. It all depends on how much the owner pays attention to such little things as the tension of the generator drive belt. First of all, this is what affects the resource of the generator. For prevention, let's check the degree of belt tension.

An ordinary eight-cylinder engine, which costs 2114, does not require special maintenance skills. On the tenth family, the belt is tensioned through a tension roller, but in 2114 there is none of this, and the belt itself no longer drives any mechanisms or assemblies. There is no power steering or air conditioning compressor. It's simple, the main thing is to buy the right belt. Its index is 21082-3701720, and it is better to take Gates or Bosch. Such a belt costs the same as two domestic ones, but its service life is longer. A German belt will cost 530 rubles.

How to do a DIY diagnosis before replacing a generator bearing

If signs of failure appear, the unit should be diagnosed:

1. Open the hood, start the car;
2. Make sure that the sound (whistle, noise) comes from the electric generator;
3. Stop the engine, remove the belt from the pulley;
4. Start the car again, if the noise disappears, the problem is in the bearings and they need to be replaced.

Attention:

The p/w should be replaced immediately, as they are jammed or they rotate along the seating surface. An example of diagnostics and testing is presented in the video.

How to check the bearings of a VAZ generator

Alternator belt tension VAZ 2114

The tension of the generator belt is checked on a long branch, and the force should be about 10 kgf. To more or less accurately determine the force, you can use a simple household steelyard. If the belt deviates by no more than 10 mm at this force, the tension is fine. If it is less, the belt will be overtightened and this may end badly for the generator bearing, to which we are already returning.

But even if the alternator belt has always been in perfect condition, has not slipped or been overtightened, there is a possibility that the bearing may sing. Moreover, setting the sound source is quite simple. If a suspicious hum appears, it is enough to make sure that it is a bearing, since there are plenty of singers in that area. This includes the timing belt, the front cover bearing, the pump, and the timing belt tension roller. To accurately determine the malfunction, it is enough to remove the belt from the pulley and start the engine for a short time. If the noise disappears, it is our bearing that is making noise.

Symptoms of generator bearing failure

Problems with the generator cannot be ignored. After all, they significantly affect the ability to use the car. The following symptoms usually indicate that the bearings have failed:

• Crunching noise when the engine is running. It often indicates wear on the generator ball bearings, but can also be caused by other reasons. When such a sound appears, you need to make sure that it comes from this node;
• Whistle, noise when the engine is running. These sounds also often indicate failure of these parts, but they can also occur due to other malfunctions. It is important to check that the generator is whistling;
• Unstable battery charging. The battery can either work normally, or quickly discharge, literally overnight. Often there is a drop in voltage in the on-board network and the inability to start the car due to a dead battery. These signs often indicate a broken ball bearing, but can also be caused by a malfunction of other parts of the generating device. There may also be a problem with the battery, terminals or wiring;
• The generator housing is hot. This can be noticed by touching it when the power unit is running or has just been turned off.

You can check the serviceability of the bearings by removing the generator belt from the pulley. If, after starting the engine, the crunching, whistling or other noise disappears, the unit requires repair. It is possible to understand which of the two elements has failed only after disassembling the generator. These parts can travel on average up to 100,000 km. But usually they break down at about 60,000-80,000 km. This can happen sooner if the belt is too tight or slipping. Dampness and dirt in the engine compartment can cause their bearings to fail ahead of schedule.

VAZ 2114 generator bearing numbers

Once we were convinced that bearing replacement was inevitable, all that was left was to simply select the bearing and replace it. In general, everything is simple, but with the huge number of fakes that flood the market, it would not hurt to know the dimensions of the bearing so as not to get into trouble. Since there are only two ways to find out the dimensions of the bearing - remove the generator and measure it with a caliper, or ask knowledgeable people. Knowledgeable people say that: the front bearing of the generator has an internal diameter of 17 mm and an external one of 47 mm; the rear bearing has an inner race with a diameter of 15 mm, and its seat is 35 mm; The width of the bearing race of the VAZ 2114 generator is 11 mm at the rear and 14 mm at the front.

The front bearing should be marked 6302, and the rear bearing - 6202. The price of a generator bearing for a VAZ 2114 should not be higher than 220 rubles. Although, depending on your luck. And also, if you are too lazy to play with pressing the bearing out of the cover, as an alternative, you can buy a cover assembled with a bearing. It will cost no more than 400 rubles, and the replacement will be much more pleasant.

Bearing numbers and sizes

Car owners are often interested in what bearings are on the VAZ 2114 generator. It is worth noting that there are two such elements installed. There is a front one, which has a larger diameter, and a small rear one. The first has an internal diameter of 17 mm and an external diameter of 47 mm, while the second has these dimensions of 15 and 35 mm, respectively. The width of the clip at the front part is 14 mm, at the rear – only 11 mm.

Bearing numbers for the VAZ 2114 generator: front – 6302 , rear – 6202 . In addition, sometimes the following marking is found: according to GOST - front ball bearing - 6-180303 C17 , rear - 6-180203 C17, according to ISO - 6303.2RS and 6203.2RS. Designations in the catalog may differ slightly, since spare parts are produced by various domestic and foreign manufacturers.

These products are sold individually or as a set. The front element can be purchased together with the cover, making it easier to install.

It is worth noting that here are the dimensions and part numbers for the standard four-wheel generator. Often this unit on this machine is replaced with a more powerful one from a foreign brand. Car audio enthusiasts often do this. If such a replacement was made, for example, by the previous owner, you need to find out the make and model of the device. Using this data, you can find the necessary markings of spare parts on the Internet.

Bearing replacement, instructions

Now for the procedure. There should not be any particular difficulties in dismantling the generator. Now that we have the generator in our hands, we can start disassembling it, but we will have to disassemble it completely. To do this, it is advisable to have a vice, and the process itself schematically looks like this:

1. Remove the back cover.
2. Remove the diode bridge.
3. Remove the brushes.
4. Unscrew the pulley nut, holding it in a vice through an elastic spacer so as not to damage it.
5. Attention! Be sure to mark the covers with a marker so as not to disturb the alignment.
6. Use brake fluid or magic WD40 to treat the tightening bolts and the cover mounting areas.
7. Unscrew the tightening bolts and remove the covers.
8. Use a wooden punch to knock out the anchor from the cage on both sides.
9. Use old bearings instead of mandrels to press in new ones.

It is done. The bearings are pressed in, now all that remains is to put everything back together so that the rotor does not touch the stator. After installing the generator and a new belt, we check the voltage at the battery terminals, if as a result the generator runs quietly, the voltage is at least 14 V, we can consider the mission completed. Good luck to everyone!

How many bearings are in the VAZ 2114 generator? We study the design of the unit

To find out how many bearings are in the VAZ 2114 generator, study the diagram below; the photo shows the model 94.3701 unit disassembled, the positions of the parts are marked with numbers. The electric generator of Lada 2114 and 2115 has two rolling elements, rear and front (16, 15).

To replace, prepare the following tools:

• Socket wrenches or sockets (8, 10, 13, 17, 24);
• Adjustable wrench;
• Hammer, vice;
• Two-point puller (if possible);
• Screwdrivers;
• Extended head 27 (for pressing).

Generator parts:

1 - pulley; 2 — washer; 3 — front cover; 4 - spacer ring; 5 - rotor; 6 - stator; 7 — back cover; 8 — casing; 9 - rectifier unit with capacitor; 10 — brush holder with voltage regulator.

What bearings are on the VAZ 2114 generator - how much, what numbers and sizes

When choosing spare parts, motorists have the following typical questions:

1. What are the generator bearing numbers?

1. Answer : Markings (numbers):

1. according to GOST: 6-180303 C17, 6-180203 C17;
2. according to ISO: 6303.2RS, 6203.2RS.

1. What bearings are on the VAZ 2114 generator?

1. Answer : In the VAZ 2114 generator (injector), the manufacturer provided closed single-row radial balls with lubricant.

1. How much does a generator bearing cost?

1. Answer : The cost of a set of two Russian-made ball bearings will be 300-350 rubles.

1. Generator bearing dimensions?

1. Answer : For detailed information on the dimensions of the parts, read the article “Replacing the bearings of a VAZ 2110 generator”

Attention:

Buy spare parts from Russian manufacturers (VBF, SPZ) or foreign companies SKF, FAG. Detailed information is presented in the table.

Table of recommended bearing manufacturers