Replacing the silent block of the front suspension arm of VAZ 21083

We will replace the silent block of the front suspension arm of a VAZ 21083 (21093, 21099).

Work to replace the silent block will have to be carried out in case of severe wear. Its signs can be considered a knocking sound from the front suspension when starting from a stop and driving over uneven surfaces, and deterioration in the car’s handling when changing lanes.

Necessary tools, accessories and spare parts

Two spanners on "19"

Soap

Cup puller or vice

Cup puller

Hammer

Bolt knockout mandrel

New front suspension arm silent block for VAZ 21083 (2108-2904040)

Bolt securing the silent block to the bracket with a nut

Preparatory work

— We install the car on a pit or overpass

If there is neither one nor the other, you can simply place the car on a flat surface, jack it up on both sides and remove the wheel.

— Disconnect the stabilizer bar from the suspension arm

It is most convenient to replace the silent block of the front suspension arm with the arm completely removed. But, below we will describe a replacement method directly on the car. It allows work to be completed in an extremely short time (since there are fewer parts to disconnect) without loss of quality.

Silent block of the front suspension arm of the VAZ 21083 (21093, 21099). The front pillar has been removed for clarity.

Replacing the silent block of the front suspension arm of VAZ 21083 (21093, 21099)

— Disconnect the front suspension arm from the bracket

The lever silent block is attached to a bracket on the car body. Using two “19” wrenches, unscrew the fastening nut and knock out the bolt through the mandrel with a hammer.

At this stage, problems may arise with removing the bolt from the bushing of the silent block, since most often it sours there. There are several ways to solve the problem: heating, filling with penetrating liquid and cutting off the bolt with a grinder. We use the one that is most appropriate depending on the situation (degree of souring).

— Pressing out the old silent block

The silent block can be pressed out of the lever eye using a puller or a vice with pieces of tubes of suitable diameter.

Scheme for pressing in the silent block of the front suspension arm of VAZ 21083

— Press in a new silent block

For pressing, we again use a puller or a vice. Before pressing, lubricate the silent block with a soap solution.

After replacing the silent block, we install all the parts back. The final tightening of the bolt and nut securing the silent block is carried out while the car is on its wheels.

Notes and additions

The silent block of the front suspension arm of the VAZ 21083 car consists of a rubber bushing into which a steel tube is pressed. The silent block itself is pressed into the lever head. When the lever swings, elastic deformation of the rubber bushing occurs. Rotation of the silent block bushings relative to each other or relative to the lever head or mounting bolt is considered a malfunction.

Twokarburators VK - More information on the topic in our VKontakte group, on Facebook Twokarburators FS and on Odnoklassniki - Twokarburators OK

Features of elements

The main function of silents is to eliminate vibrations and deformations that occur during vehicle operation.

When choosing new silent blocks for the rear beam of a VAZ 2109, pay attention to the markings. It should be 2109-2914054. For VAZ 2114-15 models, the markings are different, but the elements themselves are very similar.

In principle, it is possible to install a silent block from a dozen on a VAZ 2109, but you will have to work hard with pressing in the rubber bushing due to the difference in size. The reverse procedure is not possible.

Rear beam

Required Tools

The first thing you need to do is purchase suitable silent blocks (see the article “Which silent blocks are better, rubber or polyurethane”). The simplest option would be to purchase a wear-resistant rubber part. But, in this case, you need to prepare for their rapid wear. Spare parts made from polyurethane are more durable, but they cost 3 times more. It is advisable to use original silent blocks. If desired, you can use a part from a VAZ-2110; they are considered more durable. You will have to tinker with the installation of such an elastic band; it is slightly larger in diameter and will not fit into place easily.

What is a silent block

A silent block is a rubber-metal hinge (RMH) - an element that connects two suspension parts, in this case, a car. Consists of metal and rubber. Rubber serves to dampen vibration, smooth movement, and eliminate wear caused by metal-on-metal friction.

Silent blocks or RMS - receive and dampen axial, radial, torsion and cardan vibrations. Withstands radial vibrations up to 300 kN (kilo Newton), that is, up to 300 kg.

Classification of rubber-metal silent blocks that work in torsion:

with outer ring;
from the inside;
double cage;
eccentric.

Silent blocks of this type are installed in car suspensions so that the levers and springs can move.

Classification of RMSs that work in compression with bending:

supports;
pillows.

Hinges of this type are installed under the engine (mounts, cushions) to dampen vibration oscillations of a running and moving engine. Protects the body from vibrations.

What configurations are recommended to buy to replace daisies?

When the VAZ 2114 is factory equipped, a product is installed that is entered into the company catalog under the number 108-290-40-46. Speaking about the quality of the standard kit, I want to wish for the best, but this product is native to the silent block seat, therefore it has a number of advantages. If you purchase a new set in a salon, you should expect an amount of 500 rubles.

Silent block VAZ 2114

In addition to silent blocks or daisies, you will also need to purchase all the necessary fasteners, as well as washers to adjust the product in its seat.

Useful tips

The brake hose is located on the beam. If the eye is moved, it can be damaged. Pay attention to this point and be careful when working. Most often, damage occurs from contact with the mount. Always look at what it is leaning on.

In most cases, it will not be possible to simply unscrew the fastening nut. In this case, you need to tap it out. Just don’t hit the nut, hit the screw, the vibration will make it much easier to unscrew it. Using a pipe will also make the task easier. It is put on the knob, this way you can increase the lever and, accordingly, the force transmitted to the nut. As a rule, after such exposure, the most rusted connection gives in.

Conclusion

. The suspension of all cars on domestic roads is subjected to serious tests. Therefore, work such as replacing the silent blocks of the rear beam on a VAZ 2109 is not uncommon. In fact, there is nothing complicated here. The main thing is to do everything in a certain order, and there will be no problems during work.

Symptoms of a problem

There are several main signs of failure of the rear beam silent blocks, including:

Unstable behavior of the car on the roads;
Tires wear unevenly, which is not difficult to notice from the tread pattern;
When driving on a bad road (that is, 95% of all our roads), unpleasant squeaks and impacts on the car body are observed.

These signs are indirect, since they may be associated with other failures of the vehicle’s chassis. For example, dull knocks are also a sign of a faulty rear pillar. Therefore, in order to make sure that there is a particular problem, you will need to fully diagnose the chassis.

Choice

Before you start replacing the silent blocks of the rear beam, you need to decide what exactly you will replace the old, worn bushings with.

We figured out the markings and realized that for the VAZ 2109 you need to take only those that are suitable in size and diameter for the rear beam of the nine.

Today, for the VAZ 2109 they offer two types of silents, differing in the material of manufacture.

Silent block type

Peculiarities

They are not as durable, but provide greater softness when operating the car's suspension.

A more rigid modification, in which the increased rigidity is the main disadvantage. At the same time, these products are more resistant to temperature changes, do not deform so quickly, and remain operational longer.

Size difference

Video

This video shows how to make a silent block remover and how to work with it.

How to change silent blocks without a puller.

How to change silent blocks on the “classic” VAZ 2101, 2102, 2103, 2104, 2105, 2106, 2107.

How to make a puller for VAZ 2113, 2114, 2115.

How to make a puller for removing and installing rubber-metal hinges on Skoda Fabia, Skoda Rapid, VW Polo Sedan cars.

When repairs are required

Replacement of silent blocks of the rear beam on a VAZ 2109, according to the manufacturer’s recommendations, occurs after 100,000 kilometers. But, in practice, silent blocks rarely last that long. The usual service life is a year or 30-40 thousand kilometers. Polyurethane ones last longer. The main reasons for such rapid wear:

Low quality material;