Standard stand for 2800 rub. implies use on a passenger car, not premium class, not adjustable, not air, not sports, not crossovers. for cars produced before 2007. The cost of repairing racks that are not included in the concept of STANDARD can be found in, or check by calling +79139128226, +79139174755. The cost of removing and installing racks is not included in the price of repairs. The final cost of repairs is only after diagnostics.

Repair of shock absorbers for COMMERCIAL MINIBUSES and TRUCKS FROM 4 t.r.

Repair of a rack on a MAN TGA 9-15 tr. Depending on the execution.

There is no warranty when repairing one rack. To obtain a warranty, it is necessary to repair two racks on the same axis.

How do ordinary racks in Automotive Workshop No. 1 become frost-resistant?

Many people think that it is enough to drill a hole and drain the old oil. Or even . This is a ridiculous idea of ​​strut failure and repair methods. Everything is much more complicated! To make a rack look like new, a multi-level specialized process is required. AND industrial equipment- lathes, milling machines, welding positioners, etc. Before making a decision, find out from our competitors whether they have similar resources.

First stage, gentle opening of the stand glass on a machine by an experienced turner, cutting precise threads. A special nut is made, and the stand becomes collapsible.

Second phase : dividing the rack into its component parts, inspecting each of dozens of parts, replacing defective elements.
Third stage. Assembling valve and piston units, checking the functionality of bypass systems on a pneumatic test bench.
And finally, the fourth stage - installation of analyzed components into the rack, installation of a frost-resistant repair kit, filling of frost-resistant hydraulic fluid, and only lastly, injection of inert gas. The cost of pumping gas during conscientious repair of racks against the background of all the procedures described above is negligible.

After this, the rack will work reliably in cold and hot weather. Auto repair shop number one. Volochaevskaya, 8a, phone 2-148-226

The frost resistance of the hydraulic fluid and oil seal we use is tested in a cryochamber at a temperature of -55 Celsius. Sample products from each batch are frozen for 24 hours. Next, the fluid is tested for fluidity and the seals for ductility.

The samples used in repairs are also constantly frozen in a cryochamber in our workshop. Any client can independently verify with his own hands that the liquid does not freeze and the plasticity of the seal.

SO WHAT IS THE ADVANTAGE OF REPAIRING RACKS BEFORE BUYING NEW ones???

1. The cost of repair is cheaper than a new high-quality rack.
2. Racks become serviceable after repair. Example: If you hit a large hole, there is a high probability of gas escaping from the strut. In our case, gas is pumped through a previously installed fitting in a couple of minutes. In other cases, it is necessary to remove the strut to pump gas through the rod. And subsequently, after installing the rack, and adjusting the toe angles. All this is reflected in the cost.
3.Usage Supplies when repairing from the highest (highest quality) price category.
4. Possibility of adjusting hardness-softness in a small range during operation of the repaired racks.
5. During repairs, it is possible to adjust the hardness-softness of the struts in any range. But there is a limitation, spring wear.
6. Warranty first person. If they occur, the problem is solved within a day.

Read more about rack repair...

What does a car owner experience when he buys new struts from a famous brand, in beautiful, “factory” packaging? And he feels a feeling of deep satisfaction - after all, now about problems with chassis you can forget for several years! And when, after 2-3 months, new products die ingloriously, the car owner begins to experience a completely different range of feelings and utter specific words that would be unethical to present in this article. Why do new struts and shock absorbers sometimes so cruelly deceive our expectations?

“Owners of foreign cars need to know that on the assembly line, when the car is just being born, strictly original elements of the highest quality group are installed on it - otherwise you will not survive in the fierce competition. These parts have a much greater safety margin than those “duplicate” spare parts that are sold inexpensive prices. Moreover, there are a lot of outright fake, counterfeit struts and shock absorbers on the market, which are sold under the names of reputable brands,” warn specialists at Auto Workshop No. 1.

"Auto repair shop No. 1" is a specialized service station. Her credo is the maintenance and repair of the chassis of foreign cars. Here they find technical solutions for high-quality restoration of any struts and shock absorbers - both classic, adjustable, and even single-tube (Behind the Urals this is the only point where “single-tube” ones are granted new life). Novosibirsk owners of foreign cars have known the “suspension” station on Volochaevstkaya, “8A” for 15 years. Over the years, the staff has accumulated vast experience, developed and improved technologies for restoring chassis components.

“Restoring struts and shock absorbers is more than advisable,” the craftsmen said. – The bulk of the product is not subject to any wear and tear and retains its “original” Japanese or European quality. The system fails bypass valves, seals harden, anthers tear, degrades hydraulic fluid. Having carefully examined the insides of the client’s rack, we replace problematic elements, and instead old fluid we fill in a new one, adapted to the harsh Siberian conditions (from -50C to +50C). The cost of restoring a rack is comparable to the price of an inexpensive “double”, and often lower.”

Of course, the reader reasonably asks: what about the quality?

“We have been analyzing cases for three years now. warranty repair using a special program. Failure rate of restored racks within warranty period during this period amounted to 0.1%. This is an excellent indicator, considering that the service life of an inexpensive “duplicate” rack is from 1 month to 1.5 years, and then it is impossible to restore it,” said the professionals of Auto Workshop No. 1.

The stand, restored using the original technology at Volochaevskaya, “8A,” on the contrary, becomes serviceable and “eternal.” You only need to check its condition and inert gas pressure once every six months or a year. If necessary, it is worth carrying out a little preventive maintenance. It is not uncommon for a car to change through 2-3 owners, and once the racks restored at Auto Workshop No. 1 all worked and worked without causing any complaints.

In Automotive Workshop No. 1, in addition to high-quality restoration of struts and shock absorbers, full cycle“suspension” maintenance, completed by the wheel alignment procedure on a precise 3D Hunter DSP 600 stand.

“It is unacceptable to repair one thing in the chassis, ignoring neighboring components. The suspension is a balanced system. It will work correctly only when all its elements are in good working order. Therefore we are in mandatory carry out comprehensive diagnostics and disclose all problems to the client. After all, our repairs depend not only on the comfort, but also on the safety of the client and his loved ones. That’s why we confidently give a 6-month guarantee on our work,” the craftsmen concluded.

PERSISTENT and NOT PERSISTENT. Part one

When they showed me THIS at Auto Repair Shop No. 1, I was slightly shocked. Truly, it is better to see once than to hear a hundred times. There were three glass bottles on the table in front of me. In one there is a dirty gray cloudy substance, in the second there is a barely transparent liquid plus exfoliated black sediment, in the third there is a golden transparent “tear”

PERSISTENT and NOT PERSISTENT. Part two

When they showed me THIS at Auto Repair Shop No. 1, I was slightly shocked. Truly, it is better to see once than to hear a hundred times. There were three glass bottles on the table in front of me. In one there is a dirty gray cloudy substance, in the second there is a barely transparent liquid plus exfoliated black sediment, in the third there is a golden transparent “tear”.

Repair of standard racks

Often even better than four, five, and so on. “What are they talking about?” - the reader will ask in bewilderment. About struts and shock absorbers. And about some other elements of the suspension of foreign cars. Today we will try to refute the seemingly unshakable axiom - new is better than old.

With bad or faulty shock absorbers, driving a car becomes not only uncomfortable, but even dangerous. The car is poorly controlled, the grip of the wheels on the road deteriorates, and the effectiveness of the brakes decreases. Let's try to figure out why this happens.

Many car enthusiasts confuse the work of a shock absorber with the work of other elastic suspension elements - springs. Suspension springs (most often they are twisted spiral or leaf springs, less common are torsion bars - elastic rods that twist under load) soften shocks and hard impacts of wheels on stones, potholes or other road irregularities.

As a result, the force of the impact transmitted to the body decreases - the impact seems to stretch out over time. However, all kinds of springs, including elastic elements suspensions have a bad property - the car body attached to them can sway, not only on uneven roads, but also simply when turning. In order to dampen body vibrations that occur during suspension operation, shock absorbers are precisely what is needed. Without them, the car will respond to any unevenness in the road with a long sway and a large roll.

Hydraulic shock absorbers

For all domestic cars install hydraulic (oil) shock absorbers. A modern hydraulic shock absorber is a double-acting mechanism. It dampens suspension vibrations both when the spring is compressed and when it relaxes - recoil. This is achieved due to the resistance that the liquid encounters when flowing from one cavity of the shock absorber to another. The tubular body of the hydraulic shock absorber contains three main parts: the working cylinder, the piston rod and the guide bushing. The body is connected to the suspension elements, and the rod is connected to the body. In the bottom of the cylinder, which is completely filled with liquid, and in the piston there are holes with valves, which are pressed by springs of different stiffness.

During the downward stroke of the piston (compression process), shock absorber fluid flows through the valves from the lower cavity of the cylinder to the upper one, and during the upward stroke, vice versa. Excess liquid, which is displaced by the rod, enters the compensation chamber through a special hole in the valve. It is usually located in the gap between the working cylinder and the shock absorber body and in operating condition is filled partly with shock absorber fluid and partly with air. During recoil, the piston moves upward along with the rod, and the missing amount of fluid through the valve in the bottom again enters the cylinder from the compensation chamber.

The viscosity of the shock absorber fluid, valve openings and other structural elements are designed so that, working synchronously with the suspension, the shock absorber resists its movement during compression and relaxation. Telescopic shock absorbers are usually designed so that the force of the suspension during recoil is 2-3 times greater than during compression. It is with this ratio of forces that vibrations are damped in a minimum time.

Everything would be fine if it were not for the air in the compensation chamber. When there is little or no air, and, accordingly, too much fluid, the shock absorber stops working and behaves like a rigid body. If there is too much air in the chamber, then the shock absorber also does not work, it “falls” (compresses and expands without resistance). Another negative point: a two-pipe design, somewhat reminiscent of a double-walled thermos flask, impairs the cooling of the shock absorber, and when damping vibrations, the mechanical compression energy is converted into heat. The worse the cooling conditions, the higher the temperature and lower the viscosity of the shock absorber fluid, which means the lower the vibration damping efficiency. On gently undulating roads and low speeds the car begins to rock smoothly. Although this is tedious, it is not very dangerous. On high speeds or on small uneven surfaces (such a surface is called a “washboard”), the wheels can bounce off the road surface, and this already leads to serious consequences: controllability decreases, stability deteriorates and braking performance car. During a very drive fast On uneven roads, the shock absorber may even overheat, and if the suspension oscillates frequently, the liquid in it may foam. The formation of foam is facilitated by the air in the compensation chamber. The viscosity of the foam is so low that the shock absorber stops working altogether.

Gas-filled shock absorbers

IN last years Soft-operating hydraulic shock absorbers are being replaced by more modern ones - gas-filled ones. Although they are more rigid, they work stably and are different for a long time services.

Their creation began with the fact that instead of air, nitrogen was pumped into the compensation chamber under low pressure and a so-called gas-filled (or gas) shock absorber was obtained. low pressure. This design somewhat improves the performance of the shock absorber, but does not completely eliminate fluid foaming.

A solution to the problem was found when the compensation chamber was separated by a membrane, isolating the gas from the liquid, and the gas was pumped under high pressure - about 25 atmospheres. At first, the design remained two-pipe with all its disadvantages, but after a while gas-filled shock absorbers appeared high pressure, in which one pipe served as both the body and the working cylinder. This shock absorber is divided by a special separating piston into two parts: gas and liquid chambers. A piston with valves is mounted on the rod, which operate in much the same way as in a hydraulic shock absorber, but the bottom of a gas-filled shock absorber is solid, without valves. When the rod enters the working cylinder, the volume of fluid in it changes. During the compression stroke, this is compensated for by some movement of the separating piston. During the recoil stroke, the gas in the gas chamber pushes the separating piston to its original location.

High pressure in a shock absorber of this type practically solved the problem of foaming, since, as is known, the higher the pressure in the liquid, the higher its boiling point. In addition, the monotube shock absorber cools well, so it operates more stably.

Compared to conventional hydraulic shock absorbers, high-pressure gas shock absorbers are characterized by relatively high rigidity, but there is a very original technical solution allowing it to be reduced. A barely noticeable expansion is made in the middle part of the working cylinder. The piston experiences slightly less resistance in this area, and the car behaves very smoothly on a smooth or moderately rough road. This is the so-called shock absorber comfort zone. In piston positions close to the edges of the working cylinder, its diameter is slightly smaller and the shock absorber operates more rigidly. These zones are called control zones.

There is another advantage of gas shock absorbers over hydraulic ones. They can be placed with the stem down, up, as well as obliquely and horizontally. This does not affect the operation of the shock absorber. In no case should hydraulic shock absorbers be installed upside down.

Now almost any shock absorbers are on sale. From the catalogues, you can select them for not only imported cars, but also domestic production. Here is a list of the main leading manufacturing companies:

"Boge" (Germany) produces gas and hydraulic shock absorbers and supplies them to automobile factories"BMW", "SAAB", "Volvo";

"Bilstein" (Germany) produces mainly shock absorbers for sports cars;

"De Carbon" (France). The company, named after the founder and author of the first gas shock absorber, De Carbone, produces gas and hydraulic shock absorbers;

"Gabriel" (USA) ranks second in the sale of shock absorbers in Europe as spare parts, producing hydraulic and gas shock absorbers;

"Kayaba" (Japan) supplies its products to many Japanese car assembly plants, produces shock absorbers for European cars;

"Koni" (Holland) specializes in the production of expensive shock absorbers high class. They are installed on Porsche, Ferrari, and Maserati cars. In the West the company gives lifetime warranty for your products;

"Monroe" (Belgium) is a leader in the production of shock absorbers as spare parts. Produces hydraulic and gas-filled low-pressure shock absorbers. Monroe shock absorbers are standardly installed on Volvo cars;

"Sachs" (Germany) supplies shock absorbers as spare parts, as well as to car assembly plants. They are installed on serial BMW cars, Audi and others.

Koni shock absorbers with adjustable stiffness have recently appeared. In some cases, it can be done without even leaving the car. And the Sachs company released a shock absorber with an automatic maintenance system ground clearance. When a heavily loaded car moves on an uneven road, the rod of such a shock absorber, through a position sensor, activates a pump, which “pumps up” the pressure in the shock absorber and thereby lifts the car.

A few simple tips

Shock absorber defects can be boiled down to two main problems - leaks and mechanical failures. Most often, leaks occur due to damage to the rod seals or the rods themselves when dirt gets on them, as well as due to Low quality these details.

Mechanical failures are possible during internal details- valves, pistons, springs, but there are also external damage(for example, a broken or bent rod, the formation of dents on the body, broken fasteners) associated either with incorrect installation shock absorber, or in emergency situations.

The driver himself may be to blame for shock absorber failures. For example, starting off after long-term parking in the cold, you can’t immediately high speed drive on a rough road. The thickened liquid cannot be quickly pumped through the numerous small holes of the shock absorber; it, as motorists say, “wedges”, and then the rod breaks naturally. In the cold, you first need to drive about a kilometer slowly so that the shock absorber, and at the same time the transmission, have time to warm up slightly.

Shock absorbers need to be closely monitored. Hydraulic ones rarely fail immediately. More often, their characteristics deteriorate gradually, and the driver does not even notice it. If the hydraulic shock absorber leaks, it is better to replace it with a new one. It is easy to check the operation of the shock absorber. You need to press firmly on the wing from top to bottom with your hand and suddenly remove the load. If the car rose and did not stop in the middle position, and even more so if it swayed at least once more, it means that the shock absorber under this wing is faulty.

As for high-pressure gas-filled shock absorbers, it should be remembered that with them the car’s suspension becomes stiffer and the car less comfortable, although handling and stability are significantly improved.

When installing a gas-filled shock absorber on a car, the body rises slightly. This is due to the fact that due to high pressure the rod tends to constantly extend. For example, on the Moskvich-2141 car, after installing the front gas-filled shock absorbers made in Grodno, the front end is raised by 25 mm. Gas shock absorbers"Plaza" companies on "VAZ-2108" raise the body by about 20 mm. This somewhat reduces the recoil stroke. Therefore, it makes sense to change the suspension springs along with the shock absorbers - install softer ones. However, if the springs on the car are old and “sagging”, then you can leave them.

Based on materials from the works of Candidate of Technical Sciences D. ZYKOV
Defect: Oil mist on shock absorber
With each stroke, the piston takes up a small amount of oil to lubricate the seal.
Oil condensation (oil mist) can be seen on the dry shock absorber rod.
This is not evidence of a faulty shock absorber. A little fogging is normal and even necessary to ensure shock absorber seal.
Defect: shock absorber is leaking
The piston rod seals are worn out due to long operating time, high load, sand or street dirt - the defect is a consequence of incorrect operation.
Defect: there are marks on the shock absorber anti-corrosion treatment car
It interferes with heat dissipation, which in turn stimulates oil leakage and leads to a decrease in damping force.
This defect is a consequence of incorrect operation (incompetence service center who carried out anti-corrosion treatment).
Defect: the chrome coating on the piston rod is worn away, traces of paint burnt are visible, the oil seal is asymmetrically deformed
Strong tightening of the shock absorber in the assembly position (with the wheels hanging).
Misaligned clamping points (body deformation).
This leads to wear on the seal and piston rod guide, resulting in oil leakage and loss of performance.
Tighten the shock absorber all the way only when the car is on its wheels.
Defect: piston rod damaged
Holding the rod with pliers during installation will damage the chrome surface of the piston rod.
During operation, the piston rod breaks the seal, causing oil leakage and loss of performance.
This defect is a consequence of incorrect installation of the shock absorber. When installed correctly, it is necessary to hold the piston rod special tool.
Defect: hinges with elastic rubber elements worn and with traces of impacts
Normal wear and tear due to prolonged use.
Wear due to sand (sanding action).
Wear due to driving at too high a ride height for the vehicle, with an incorrectly adjusted air suspension element for ground clearance.
The latter indicates incorrect installation of the shock absorber.
Defect: thread marks in the bushing
The tightening torque during installation was insufficient, resulting in a gap between the bushing and the tops of the thread profile.
Defect: worn areas of the shock absorber strut attachment
The tightening torque during installation was insufficient.
Used old threaded connection.
This leads to the fact that the nozzle knocks on the shock absorber strut - the defect is a consequence of incorrect shock absorber installation.
Defect: threaded connection is torn off
The fastening nut was tightened with too much torque, resulting in excessive tension on the material.
Most likely, an impact driver was used - the defect is a consequence of incorrect installation of the shock absorber.
Defect: the hinge eye is torn or completely torn off
The spring end stop is damaged or missing, or the ground clearance is incorrectly adjusted.
In this case, the shock absorber acts as a limiter, it works “to break” - because of this it is overloaded.
This defect is a consequence of incorrect installation of the shock absorber.

Faulty shock absorbers lead to rapid wear of adjacent elements. Therefore, inspect the strut mounts, spring bumpers, and suspension springs every time you check your shock absorber. When replacing the shock absorber, also replace the suspension strut mounts and spring bumpers.

It is the shock absorbers that ensure contact of the wheels with the road and provide body control, mostly influencing the entire behavior of the car in motion.

A car whose wheel is missing good contact with the road, cannot brake, accelerate or turn - it becomes uncontrollable. Compressed by the weight of the body, the springs tend to open the suspension as soon as a free space, but when it hits the surface, the wheel bounces back just as quickly. The oscillations are repeated, the car encounters new obstacles and potholes, and if not for the shock absorbers, at speeds above 20-30 km/h it would become impossible to control.

Serviceable shock absorbers are the leading element active safety. The severity of the situation lies in the fact that drivers often do not realize the importance of the serviceability and quality and performance characteristics of shock absorbers, and that shock absorber wear occurs gradually, often without visible or audible signs.

The driver gets used to the gradual change in the behavior of the car, but at the moment when it is necessary to change lanes or get away from an unexpectedly appeared obstacle, an oncoming car or the turn turns out to be sharper than it looked, it is not the shock absorbers that are to blame, but the driver who lost control.

The less efficient the shock absorbers, the more time the wheel spends in the air rather than in contact with the road. As a result, it increases braking distances, the speed of safe cornering and the threshold for the onset of aquaplaning decreases, intensive wear of tires and chassis components occurs, road lighting deteriorates and oncoming drivers are blinded.

Faulty shock absorbers have a particularly bad effect on anti-lock and traction control systems, systems directional stability, traction control. Their sensors are configured to track the behavior of wheels rolling on the surface, rather than spinning in the air. Frequent indication of the operation of these systems in non-critical situations is an alarm signal informing about bad contact coated wheels, and in this case the electronic systems have low efficiency.

Shock absorbers are complex devices that have a nonlinear characteristic of operation in two directions. Therefore, the quality of materials, workmanship and, most importantly, their settings determine the behavior of the car - comfort, controllability and safety.

	increased braking distance, especially on rough roads On the left is a car with working shock absorbers, on the right is a car with faulty shock absorbers. The braking distance of a car with faulty shock absorbers increases from 5 to 25 meters (depending on speed).
	“rearrangements” of the car in turns, especially on uneven surfaces On the left is a car with working shock absorbers, on the right is a car with faulty shock absorbers “rearranging” along the road when turning.
	the appearance of strong “pecks” when emergency braking With faulty shock absorbers, the dive when braking is very large, which increases the braking distance.
	The occurrence of strong rolls with the wheels coming off the road surface, as well as disobedience to the steering wheel during emergency maneuvers
	Hydroplaning effect occurs earlier, i.e. at lower speeds, if one of the shock absorbers malfunctions, an uncontrolled skid of the car may occur.

	Defect: Oil mist on shock absorber With each stroke of the piston, a small amount of oil is taken in to lubricate the oil seal. On the dry rod of each shock absorber you can see the so-called oil mist - condensation from oil. Condensation accumulation does not mean the shock absorber is faulty. Moreover, slight fogging is normal and even necessary, because it helps ensure the seal of the shock absorber
	Defect: shock absorber is not sealed. This type of defect occurs due to incorrect operation of the shock absorber. With prolonged continuous use, the rod seals in the piston begin to wear out. This can also happen due to a heavy load on the piston or dirt or sand getting into it.
	Defect: there are traces of anti-corrosion treatment on the shock absorber. This defect is dangerous for the machine because it interferes with heat dissipation and reduces the damping force, and also contributes to oil leakage. A malfunction may occur due to incorrect operation, which is a consequence of the incompetence of the service center workers who treated the car with anti-corrosion agents.
	Defect: the chrome coating on the piston rod is worn away, traces of paint burning are visible, the oil seal is asymmetrically deformed. The defect appears when the shock absorber is strongly tightened in the assembly position (for example, with the wheels hanging out), as well as due to misaligned clamping points (in the case of body deformation). The consequence of the defect is rapid wear guide and seal of the piston rod, due to which the piston loses performance and also causes oil leakage. To prevent this from happening, you can tighten the shock absorber all the way only when the car is already on its wheels.
	Defect: piston rod damaged A rod defect can occur during installation, when the rod is held with pliers, or due to incorrect installation of the shock absorber itself. This can damage the chrome surface of the rod, causing the seal to rupture, resulting in significant loss of performance and oil leakage. Correct installation involves holding the piston rod with tools specially designed for this purpose.
	Defect: the hinges with elastic rubber elements are worn and show traces of impacts. The malfunction is caused by impacts, traces of which remain on the hinges. As a rule, a defect occurs as a result of gradual wear of the part, and can also be a consequence of wear as a result of sand getting into the part. Another reason is wear and tear after driving at very high ground clearance, when the car's air suspension is incorrectly adjusted.
	Defect: thread marks in the bushing Another consequence of incorrect installation of the shock absorber, when the tightening was insufficient, and as a result a gap appeared between the tops of the thread profile and the bushing itself.
	Defect: Worn areas of the shock absorber strut attachment. The reason is the use of an old threaded connection, as well as weak tightening. As a result, the nozzle begins to knock on the shock absorber strut. The defect is also evidence of incorrect installation of the shock absorber itself.
	Defect: threaded connection is torn off. The reason is excess metal stress, which occurs due to excessive tightening of the fastening nut. Another proof of incorrect shock absorber installation.
	Defect: the hinge eye is torn or completely torn off. This defect may occur due to damage or absence of the spring end stop. Another reason is incorrect ride height adjustment. In this case, the shock absorber begins to act as a limiter, which overloads it.

Functionality check shock absorber struts It’s not difficult, and it’s quite possible to do it yourself. Modern telescopic stands are non-removable, so if defects are detected they are replaced with new ones.

Check in motion

The initial check of the shock-absorbing struts of a VAZ-2109 car is carried out “by ear” while driving on an uneven road. Extraneous knocks in the area of ​​the struts or “breakdown” of the suspension indicates their malfunction.

Faulty racks are replaced only by a pair/

If the front or rear end If the car sways strongly or, as they say, “dances,” this also means that the shock absorbers are out of order and must be replaced.

Basic check

Further verification is carried out on standing car. To do this, you need to press firmly on the body above each pillar. If the struts are in good working order, the car should make no more than one oscillatory movement.

If the suspension constantly engages all the way – “ ”, then this means that the springs have exhausted their service life and must be replaced. You cannot operate such a car, because the body can be deformed.

After this, check the condition of the spring cups for cracks or deformation. The compression damper must also be intact and free of mechanical damage.

Before disassembling the strut, it is necessary to compress the spring with a special puller/

Disassemble the telescopic struts removed from the vehicle and conduct a thorough inspection and troubleshooting. The shock absorbers of the struts must be dry and clean, without visible signs of wear. The shock absorber must be checked before installation.

Checking the smooth movement of the shock absorber rod is carried out only on a vertically mounted stand. To do this, insert a large screwdriver into the lower hole under the mounting bolt, step on it and pull the rod up or press down. On a working shock absorber, the rod moves smoothly, without jamming or failure.

At thrust bearing it should rotate easily and quietly, and also not have any cracks or damage. Worn dampers must be replaced with new ones.

The peculiarity of shock absorber wear is that it has whole line signs, and many drivers “wait” for the manifestation of only “their” signs that have long been familiar to them, ignoring others.

The nuance is also that an old shock absorber may work well in some conditions and not perform its functions in others.

Meanwhile, the importance of shock absorbers for traffic safety is great, because abnormally functioning struts lengthen the braking distance, impair the controllability of the car, and lead to skidding. Not to mention the fact that faulty shock absorbers mean impaired comfort and increased driver fatigue, even causing occupational diseases. So, the need to quickly replace the struts is signaled by several features of the car’s behavior - and they are easy to notice.

Breakouts

Shocks in the suspension when the wheel moves to its extreme upper and lower positions. These breakdowns occur even when moving slowly over large irregularities or, for example, when carefully driving off a curb - in contrast to “regular” impacts that mark the passage of large holes and bumps at high speed.

Rocking up

If, after passing a speed bump, the front or rear of the car makes several damped oscillations up and down, this is a reason to check the shock absorbers. Folk method uncomplicated. You need to swing your hand, using your body weight, in turn, each corner of the car body. After the impact on the body stops, it should swing up and down no more than once. Otherwise, the corresponding shock absorber should come under suspicion, and you need to check it against other points of the algorithm given here.

Uncomfortable suspension operation

If, when driving over small irregularities, the wheels produce increased noise, we may be talking about wear on the shock absorber valve assembly (or two at once). This is not a metallic noise caused by mechanical failure shock absorber, but about stronger impacts of the wheels on the edges of the pit.

Drips

Abundant traces of liquid on the shock absorber body are a harbinger of an imminent replacement of the struts. Light "fogging" is allowed.

A quick and almost error-free verdict regarding the replacement of struts can be given by diagnostics on a special stand, which, based on the amount of damping of suspension vibrations, determines the residual efficiency of shock absorbers. Today there are such stands at many service stations.