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Silent blocks produced by AvtoVAZ can safely be called one of the highest quality parts. It is not surprising that other foreign manufacturers also use them for their cars.
Element appearance
The durability of almost any part, including the silent block, directly depends on the driving style of the motorist. The service life of the element is more than 30 thousand kilometers.
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
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;
- Upon visual inspection, damage is visible to the naked eye.
Any of these problems indicate the need to replace silent blocks.
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.
Malfunctions
Often, replacing the rear beam bushings is due to the fact that defects arise in the design of the element. They are like this:
- The elasticity of the rubber element deteriorates;
- The rubber breaks;
- The central bushing is displaced;
- Rotations occur in the seat.
If problems are detected with the silent block of the rear beam, you will need to drive the car into the garage in the near future and replace the damaged components. Unlike foreign cars, changing the silent seal on a VAZ 2109 is quite simple and without outside help. Plus it costs almost pennies.
How is the replacement carried out?
Before starting work, place the car over a hole or drive it onto an overpass. Be sure to secure the wheels with chocks. Next, follow the instructions:
- Remove the rear wheel. It will be much easier to work without it.
- To replace the silent block you will not need to remove the rear beam, so do not rush to dismantle it.
- When working on the left side, you will need to remove the linkage associated with the pressure regulator at the rear of the brake system. To do this, you will need to remove the handbrake cable from the mount located on the right side and the rod fixing bracket.
- Using a 12mm wrench, unscrew the nut located on the rear beam mount. Here you may need to create additional leverage using a socket wrench that fits over the knob. After you remove this bolt, jack up the side of the car you are working on.
- Carefully push the beam down until it comes out of the eyelet. Watch your actions, as you risk breaking the brake hose.
- Prepare a wooden block in advance, which at this stage will need to be placed between the body and the eye. In this case, the beam should be below the eye.
- Further work can be done with a special tool, but we will tell you how to dismantle the silent block without a puller. Take a metal tube and a hammer and use them to knock out the old bushings.
- Clean the seat.
- To make crimping easier, lubricate the seats with soapy water or dishwashing liquid. In this case, it is forbidden to lubricate the seats with oil or grease, since these chemical compounds will corrode the rubber part of the part over time.
- Using a hammer or special tool, press the silent blocks into place. Reassemble the vehicle.
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 |
| Rubber silent block | They are not as durable, but provide greater softness when operating the car's suspension. |
| Polyurethane silent block | 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. |
The choice should be made based on the available budget. Rubber elements cost several hundred rubles less. As for manufacturers, we recommend paying attention to the companies SEVI, BelMag, Boge and SS20.
Size difference
Changing the silent blocks of the front suspension of a VAZ 2109
From this article we will learn how to change the silent blocks on a VAZ 2109, or rather the lower arm of the front suspension. It can be immediately noted that replacing silent blocks is not a pleasant task and belongs to the category of increased complexity. But if you get used to it and understand how it’s done, then there shouldn’t be any problems.
REPLACING FRONT BUSHING BLOCKS VAZ 2109 , we will need the following tool:
New silent blocks for VAZ 2109.
Soapy water (detergent or liquid soap).
Gas burner or other fire source.
A piece of pipe of such diameter that the silent block fits freely into it.
Chisel and hammer.
It is best to carry out the work on an inspection pit or a lift.
So, let's go. Replacing silent blocks on a VAZ 2109 begins, like any other work, with disassembly and dismantling.
Unscrew the lower arm. To do this, unscrew using a socket with an extension: the extension nut, the nut attaching to the body, as well as the stabilizer link and two ball joint bolts. It will take a lot of effort to remove stuck and rusted nuts; if that doesn’t work, use WD-400 or heat the connection. If the extension nut does not unscrew even after all the methods suggested above, unscrew the crab, then clamp it in a vice and try again.
Next, clamp the removed lever in a vice and, using a lamp or torch, try to burn the old silent block out of the seat. If this method does not suit you, then you will have to press out the silent block using a special puller or the same vice, but using fire it is easier and faster to do this.
After the silent block has burned out a little, remove it with a screwdriver or chisel; it should come out easily.
Now you have a place ready for installing a new silent block, which must be thoroughly blown and cleaned of dirt, dust and rust before installation.
When everything is ready, you can begin replacing the front suspension silent blocks with new ones. To do this, you will need soapy water, thoroughly treat the seat with a soapy solution, then install a new silent block as shown in the photo and lightly, using a screwdriver, begin to press it into the hole. You can also apply undiluted liquid soap directly into the hole, then the resistance will be much less. It may not work out the first time, but don’t rush to despair, look at what is “not letting in” and where, tuck it in using a spatula, add soap and get to work again.
When the silent block goes in halfway, remove the pipe and press everything to the end. Be careful, do not rush, so as not to “bite” the rubber silent block, or install it awry. Don't forget about soap, add more of it.
When you have pushed it to the limit, check whether the silent block protrudes equally on each side. Your result should look something like what is shown in the picture.
Now it's time to replace the silent block of the "daisy" lever. Everything is much simpler here, cut off the old ones using a chisel, and then install the new ones in place. Using the same vice, press them into the mounting hole. Finish with milk and setting.
When the lever is ready, you can begin assembly.On the other hand, everything is done in the same way.
Do the final tightening of the nuts when the car is “on the ground”
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.
Garage or service station
All car owners can be divided into two categories:
- Those who carry out most of the repairs themselves in their garage, and only in emergency cases turn to a car service;
- Those who prefer not to touch anything with their own hands, but completely entrust repairs and maintenance to the masters of service stations.
Each of them is right in their own way. Therefore, we have no right to reproach those who do not want to carry out repairs themselves. After all, garage and professional repair of silent blocks, like other components, has its advantages.
STO has the following advantages:
- A high-quality, responsible car service provides a guarantee for repairs performed;
- In the event of a repeated breakdown covered by the warranty, repairs will be carried out free of charge;
- Professionals are professionals; they have extensive experience and knowledge, which allows them to competently perform their work.
But first you need to find such a car service, which, alas, is not an easy matter. Many provide a guarantee, but when you re-apply, they do everything possible to prove that the breakdown does not comply with the terms of the guarantee. A banal trick.
Repairing your garage will provide the following advantages:
- Significant financial savings, since you only have to spend money on consumables;
- The quality of the work performed by a master is always in doubt if you do not know this person personally. So self-repair may be much better than at a service station;
- You purchase the silent block, and the master only installs it. Why pay money for work that you can do yourself?!;
- Guarantee that a new one will be installed instead of the old silent block. Questionable service stations can easily install an old, more or less usable silent block instead of the one you gave them. You know what the result is.
