How to change silent blocks on a VAZ 2106

Replacing silent blocks VAZ 2106

The silent block is installed on the car's suspension arms; it is one of the important elements of the suspension.
The silent block consists of two metal bushings and rubber inserts. Photo of the car's lower suspension arm. Number 1 shows the ball joint, 2 – lever, 3 – lever axis (square in cross section), 4 – silent block.

Where is the silent block located?

The silent block connects the torque rod mounting elements, shock absorber mountings, anti-roll bar mountings, gearbox mountings, beam supports, and rear suspension rods.

Why do you need a silent block?

The silent block exists in order to perceive and dampen vibrations transmitted from other elements of the vehicle’s suspension. The silent block design allows it to perceive and absorb vibrations in all planes simultaneously; the silent block can withstand radial, axial and angular loads.

Which element of the car's suspension bears the heaviest load? The answer is silent block. That is why silent blocks wear out quite quickly. If the silent blocks are heavily worn, the car's wheels become uneven or come together. Wheel alignment in this case is a useless exercise, and besides, the money is simply wasted. Replacing silent blocks is quite difficult, especially if you are doing this car repair process for the first time.

Replace silent blocks

This can be done both in a car service center and at home. Now technologies have emerged for restoring worn silent blocks; restoration takes place using special equipment - vulcanizers. Restoring old silent blocks is cheaper than buying new ones.

How much does it cost to restore a worn silent block? In Russia, in car services where there are special vulcanizers, they restore worn silent blocks at a cost of 700 to 1800 rubles.

How to replace silent blocks on a VAZ 2106? To replace silent blocks on a VAZ 2106, you will need the following tools: 13 keys (two pieces), a 22 key, special devices for removing and installing silent blocks on the lower arm of a VAZ 2106. Instead of special tools for removing and installing silent blocks on the lever, you can use bushings with an internal diameter larger than the diameter of the silent block and such a length that you can install a washer on the lever axis and screw on the nut. These are tools if the levers have already been removed. And in order to remove the suspension arms of a car, you need to put the car on a jack, remove the wheels, free the fork from the ball joints, and free the lever from the beam.

The procedure for removing silent blocks from the lever:

1 clamp the suspension arm axle in a vise

2 unscrew the bolts from the lever axis on both sides

3 Next, we use a special device for removing silent blocks or a regular bushing: we thread the bushing into the lever axis and, by tightening the nut, press out the silent blocks. The supporting part of the bushing should rest against the lever.

What is a silent block

A silent block, or hinge, is a special part of a car’s suspension. Its design consists of two steel bushings, which are connected to each other by a special insert made of soft material. The most commonly used are rubber or polyurethane.

Replacing the lower arm on a VAZ-2107

The hinge connects several components of the chassis, and with the help of a soft insert, it has the ability to dampen various vibrations and thus prevent their transfer to another element. That is, almost all the impacts received by the chassis go directly to the presented components.

The silent blocks take the bulk of the shock from the suspension, which is why they wear out the fastest.

Silent blocks are installed in the car suspension. Available in both the front and rear parts.

The chassis of the car is responsible for handling, dynamics and smoothness. In order for all these indicators to correspond to the factory settings, you need to carefully monitor the condition of the suspension and promptly change the silent blocks, as one of the main components of this part of the machine.

On the front suspension, the arms are attached using silent blocks, and on the rear suspension, the levers are attached to the reaction rods that connect the body and the axle.

Appearance of parts

Types

When a car owner is faced with the question of replacing silent blocks, he needs to carefully select consumables. When visiting a specialized store, the buyer will face a difficult choice between two materials:

Rubber. Made from ordinary rubber. About 70% of all such products are created using this method. These hinges are considered noisier, less reliable and durable, but have an undoubted advantage - low price.
Polyurethane. Products made from this material have a longer service life and high reliability. In addition, experienced car enthusiasts have noticed that their use improves the performance of the car’s chassis. As for the minuses, it is definitely a high price. On average, such silent blocks cost four or five times more than standard ones.

Using polyurethane products on any vehicle will directly improve performance such as ride and handling. In addition, the level of wear of suspension parts will be significantly reduced, since shocks and deformations will be less transmitted and felt by other components.

When replacing the silent blocks of the front control arms on a VAZ-2107, installing polyurethane products will allow you to radically change the behavior of the car on the road and make fewer visits to the service station.

How to change the outer CV joint boot yourself!

Preparing instruments for the replacement procedure

Replacing VAZ 2106 silent blocks begins with the acquisition and preparation of tools. The main thing is that the tool fits in size and is comfortable to use. What will still be useful in order to replace the silent block will be needed:

Device for changing rubber-metal hinge.
Tool for removing ball joints (for removing the upper arm
).
Tool for dismantling the steering wheel end (an irreplaceable thing when unpressing the distant steering wheel ends).
Jack.
Twenty-two and twenty-four millimeter wrenches (open-end, socket).
Thirteen millimeter wrench (cross-cut, socket).
Set of mounts.
Hammer.
A thin chisel (it must be very sharp, since the lower silent blocks are often glued to the lower arm under pressure, and to avoid removing the arm, you can use a chisel).

Replacing the lower silent blocks of a VAZ 2107 without a puller.

Since silent blocks play a very important role in the life of a car, and changing them is a rather complex and time-consuming process, there is no need to try to save money - you need to buy high-quality branded hinges. Don't know which one to take, rubber or polyurethane? Preferably polyurethane ones, but it should be noted that they are not cheap.

Why do they fail

Cheap hinges have a short service life. The fact is that rubber has low quality characteristics when used for a long time. It begins to deteriorate, dry out and tear, which leads to the consumable being unusable. In addition, there are other reasons why hinges may wear out and require replacement:

increased vehicle mileage affects the performance properties of rubber in blocks, which leads to damage and deformation of the material;
various reagents and chemical elements that get on the hinge during operation of the machine harm the material. This could be engine oil, substances from the road surface, such as salt or sand, which are sprinkled on roads in winter;
incorrect installation. The arms should only be secured when the vehicle is on the ground and not on a lift or jack. If the fasteners are not tightened correctly, the hinge material will become twisted. This may change its properties and reduce its service life.

How to change silent blocks on a VAZ-2107

Replacing the upper silent blocks on a classic

I want to share my experience of how I change the upper silent blocks

without removing the lever.

Using a jack, remove the wheel where replacement work will be carried out.
Using a twenty-four millimeter wrench, the fastening nut is unscrewed from the lever axis. Now it is advisable to unscrew the nut that holds the steering tip. Afterwards, the disassembly procedure is carried out.
Using a twenty-four millimeter wrench, remove the nut that secures the ball joint.
The puller is used to unpress the bipod support pin (not a big problem if the puller is not at hand, then the lever is simply removed using a pair of thirteen keys).
Next, the nut that secures the axis of the upper arm is unscrewed and pulled out (here the owners of the “six” are lucky, since there is no need to tinker with the bumper mounting bolts like in the “fours”, “fives” and “sevens”).
The lever is transferred to a workbench and clamped between a vice.
Next, using a pre-prepared device, the silent blocks of the upper suspension arm of the VAZ 2106 are completely replaced.
After replacing the rubber-metal hinges, we mount the lever in its place in the reverse order, not forgetting to lubricate the axle before doing this. Oil, lithol, nigrol, etc. can be used as a lubricant. It is important to note that the axle nut does not need to be fully tightened. This process will be carried out under the weight of the vehicle itself.
The support is fixed and the wheel is mounted. The car is removed from the jack.

Replacing the rubber-metal joint of the lower arm without disassembling the suspension

The sequence of replacing the rubber-metal hinge

lower arm:

Using a twenty-two millimeter wrench, we unscrew the fastening nut of the lower arm.
We use a special puller and press the hinge out of the seat. This is where it came in handy that the steering tip had been removed in advance, since otherwise it would not have been possible to bring the puller to the silent block.
After removing the damaged silent block, you need to clean and lubricate the axle and threads with oil. The seat is also checked for damage. You need to be prepared for the fact that the silent block will be very difficult to insert back. In this case, it may be necessary to center the lower arm axle and lug using a jack and pry bar.
Using the prepared device, we press the silent block back into the seat. We fix the movable joints, and we can consider that the work is done.
We reinstall the previously removed steering tips. At the same time, do not forget to pin them.
Next, tighten the nuts of both the upper and lower suspension arms of the VAZ 2106. If you follow the technology, then you need to perform this process with four passengers and an additional load of forty kilograms, which is placed in the trunk.
In the absence of the specified number of assistants, you can get by with one (its weight must be at least eighty kilograms). It will alternately occupy seats in the cabin corresponding to the axles of the VAZ 2106, on which the nuts are tightened.

Replacing brushes on a VAZ 2106 generator without removing it.

Replacement is performed in exactly the same way
rubber-metal hinge of the lower and upper arm on other wheels of the VAZ
2106
. Do not forget that the final fixation of the axle nuts is carried out when all silent blocks have been replaced.

Removing the upper arm of the VAZ front suspension is necessary in three cases:

Replacing the lever.
Replacing silent blocks.
Replacing the lever axis.

The procedure for removing the lever is as follows:

Place the car on a lift or inspection hole.
Remove the wheel using a wheel wrench and a jack (the latter is only needed in a pit).
Remove the bolt securing the front bumper bracket.
Disconnect the upper ball joint by unscrewing the self-locking nut and mounting bolts.
Unscrew the self-locking nut of the lever axle, holding the axle with a wrench.
Remove the axle.
Remove the upper arm.