As a result of long-term use of the vehicle or premature breakdown, the vehicle owner may need to replace the front and rear struts. On VAZ 2108, 2109 and 21099 models, the service life of shock absorbers varies between 50-100 thousand kilometers and depends on driving conditions. It is prohibited to drive a car with faulty shock absorber struts, as failure can lead to an accident. Therefore, it is important to at least imagine in theory how the replacement is made.
Purpose of shock absorbers
The main function of shock absorbers is to keep the vehicle on the road no matter the condition of the road surface. Due to the struts, control is not lost when hitting bumps, which ensures a comfortable ride. Also, the front and rear struts do not allow the car to roll too much when entering a sharp turn.
Both the rear and front shock absorber struts of the VAZ 2108, 2109, 21099 consist of two elements - the shock absorber itself and the softening spring. The shock absorber is a cylindrical pipe with smooth inner walls, filled with working fluid. While the car is moving, the spring prevents the shock absorber from falling too low.
Front suspension elements: 1 — protective cap; 2 — compression stroke limiter of the support; 3 — upper support of the rack; 4 — upper support bearing; 5 — upper spring cup; 6 — front suspension spring; 7 — adjusting bolt; 8 - eccentric washer; 9 — protective casing; 10 - compression progress buffer
Basic check
Further checks are carried out with the vehicle stationary. 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.
Next, conduct an external inspection of all racks. There should be no fluid leaks, any damage or deformation on working shock absorbers. Then check the strut springs for cracks or breaks.
If the suspension constantly works all the way - “breaks through”, 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.
Reasons and signs of the need to replace racks
Failure of shock absorber struts in VAZ 2108, 2109, 21099 cars can be determined by a number of signs. Including:
- a characteristic knocking sound from under the car's bottom, which occurs due to wear of the fastening;
- the presence of black streaks on the shock absorber body, which can be easily detected by visual inspection;
- ineffective vibration damping, leading to excessive sway of the car body on uneven roads;
- strong shaking when hitting bumps.
To obtain reliable information about the technical condition of VAZ 2108, 2109 or 21099 shock absorbers, test the car on a vibration stand. The computerized stand takes into account the design features of the struts of a specific car model and performs testing by simulating various road conditions. The test results allow you to find out about the serviceability and remaining life of shock absorbers.
Consequences of wear
If there is a skid, we can conclude that the shock absorber has become unusable.
Consequences Failure of the shock absorber system can lead to the following troubles:
Required Tools
This is interesting: Signs of a pump malfunction
You can remove faulty racks and install new ones in their place yourself. To do this you will need the following set of tools and accessories:
- Socket head for 17 and 19.
- Mount.
- Socket wrench.
- Jack.
- Pliers.
- Ratchet handle.
- Collar.
- Wrenches for 17 and 19.
- Penetrating lubricant.
- A key to keep the shock absorber rod from accidentally turning.
A special wrench prevents the nut from turning while unscrewing
Repair
Since the VAZ 2109 is equipped with front and rear struts, the features of their repair should be discussed separately.
Such activities are not difficult to implement if you have at least a little experience. If it is missing, be sure to contact a trusted service station.
https://youtube.com/watch?v=QQ6KjwK-cV0
Front struts
To repair the front struts on your car, follow the instructions and rely on video tutorials.
- Remove the racks and clean them of accumulated dirt.
- Use a special tie to secure the spring. This way it will not put pressure on the support cups.
- After securing the spring, remove the nut from the upper strut mounting assembly.
- Remove the upper support limiting assembly. The support and bearing can then be removed.
- Next in line are the top cup and spring assembly.
- Make sure the swing arm, lower strut cups, shroud, and bracket assembly are in good condition. If there are defects, this entire assembly is replaced entirely.
- Place the shock absorber vertically. Begin raising and lowering the rod assembly until it stops. If there are signs of abnormal noise, knocking, dips or jamming, completely replace the part.
- Using a chisel, remove the damper support assembly. Next, arm yourself with a wrench to unscrew the fastening nut that secures the rack body.
- Remove the nut, take out the rod and working cylinder.
- Be sure to drain all liquid from the shock absorber into a prepared container. If the liquid has retained its quality, it can be refilled and reused.
- Thoroughly clean the internal surfaces of the casing of the element being repaired.
- Install a new cartridge cartridge into the housing that matches your rack - gas or oil.
- Reassemble the unit, steps in reverse order.
- Replace faulty parts as assembly progresses.
- Carefully return the springs to their original state. This is due to the fact that it is clamped and can hurt your hands if you suddenly remove the lock.
- If the housing has lost its elasticity, cracks or crevices have formed on it, or traces of metal peeling off from the rubber have appeared, be sure to replace the component.
- If there are leaks from under the protective rings of the upper support assembly, or the bearing seizes, this assembly will definitely have to be replaced with a new element.
- It is recommended to change all used mounting bolts during the repair process in order to maximize the service life of the new elements installed during the process of restoring the functionality of the front struts.
The repair process includes quite a few stages, where the most important factor for success is accuracy and attentiveness. Otherwise the work is not difficult.
Rear pillars
The sequence of repair work on the rear pillar on the VAZ 2109 is as follows:
- Turn the gearbox into first gear;
- Place locking shoes under the front axle;
- Lift the rear part, securely fix it with supports, and then remove the rear pillar;
- Remove the buffer from the assembly and also remove the boot from the spring. Check their condition. If they are worn out or show signs of defects, replace them;
- Clean the shock absorber assembly thoroughly. Next, it should be clamped using a vice;
- Check whether the shock absorbers travel normally. If there are problems, the element is replaced with a new one;
- Make sure that the silent block located in the lower mounting unit is in good condition. The boot, buffers, gaskets, cushions and springs are also checked. If there are signs of wear or defects, all of them must be replaced;
- Remove the shock absorber rod, remove the fixing nut, deliver the cylinder and drain the liquid from it;
- Remove the compression valve housing;
- Fix the rod with a vice, remove the nut, valves, piston, bushing, oil seal race and the oil seal itself;
- Check the current condition of the specified parts. If there are signs of malfunction, be sure to replace it;
- Reassemble the unit and install the racks on the car.
Once the repair is complete, be sure to do a few test drives on smooth and rough roads. A comprehensive check will allow you to understand whether the repair was successful, or whether the entire unit needs to be replaced completely.
Any VAZ 2109 owner who has at least a little experience in self-repair can easily repair the struts. But if you don’t have the skills, use the services of a service station.
Source
How to change the rear ones on a VAZ 2109 with your own hands
Replacing the rear shock absorber strut on VAZ 2108, 2109, 21099 models involves sequentially performing a number of stages. To ensure proper operation of the shock absorber, the following instructions should be followed.
- Open the trunk of the car and remove the protective cap from the side where the rack is located. After this, hold the shock absorber rod firmly to prevent rotation, and use a spanner to unscrew the fastening nut.
Remove the cap and tighten the fastening nut - Use a jack to raise the vehicle to gain access to the rack.
- Using wrenches, unscrew the bottom bolt that secures the shock absorber. To do this, hold the fastening nut of the bolt with one key, and with the second, unscrew the lower rack clamp and remove it.
Unscrew and remove the lock - Pull out the bottom of the strut and lower the shock absorber down. After this, remove the protective rubber pad and iron washer from the rod.
Lower the stand and remove the cushion and washer - Remove the faulty rack and install a new one in its place in the reverse order. When installing the iron cover onto the protective cover, it is important to check that the flange is tucked into the lip on the cover.
The replacement may need to be done in pairs - After completing the installation of the strut, check whether the shock absorber rod is inserted into the specially designated glass, then put the rubber cushion back on and secure the metal washer.
Video: how to replace it with a VAZ 21099
Manufacturers
As you know, parts for VAZs are produced by many companies under contract. And although they seem to be the same, there is still a difference in quality and driving characteristics.
You can purchase simple oil shock absorbers from any manufacturer. As a rule, they do not differ much in quality. Gas-oil options are practically not produced by domestic manufacturers, so we have to look for options from foreign manufacturers. Most often you can find the following brands in stores:
- Kayaba
; - Sachs
; - Koni
.
It should be noted that these are not all manufacturers, but only those more widely represented on the market. If you find a product from other manufacturers, it is advisable to look for detailed information about them.
Conclusion
. The shock absorbers on the classic are quite reliable. Their replacement is required quite rarely, especially when driving on smooth roads. But you still need to know which shock absorbers are best installed on the VAZ 2107. After all, sooner or later there will be a need for replacement. You can notice the malfunction of this structural element by the smooth rocking of the car, even at low speeds.
In order for the VAZ “Seven” to be driven not only conveniently, but also safely, the condition of the suspension must be periodically monitored. An important element in its design are shock absorbers, which can be replaced by every owner of this car.
How to remove and install the front ones on the “nine”
It is somewhat more difficult to remove the front strut from the car and change it, so when performing work it is important not to deviate from the prescribed instructions. To replace the front shock absorber, you must perform the following steps.
- Remove the protective cap of the desired pillar under the hood of the car. The cap, which prevents dirt from penetrating the rack, can be removed without additional tools - just grab it and apply a little force.
Removing the plug - After removing the cap, loosen the nut located inside the shock absorber rod. To do this, put the small part of the removable key on the rod and install the larger part on top.
Loosen the stem nut - Raise the car with a jack and remove the wheel from the side where the faulty shock absorber strut is located. Then use pliers to remove the cotter pin.
We take out the cotter pin - Unscrew the nut that secures the ball joint, and then remove it from the hole.
Removing the ball joint - Move the brake hose away from the bracket to avoid damaging it.
It is better to hide the bracket hose - Remove the front steering knuckle and all the components located on it. Next, unscrew the mounting nut on the top of the shock absorber and remove the strut.
Dismantling the rack - Following the reverse procedure, install the new shock absorber strut in place. Once the process is complete, perform a wheel alignment and camber check.
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After replacing shock absorber struts, it is important to check the secure fit of all fasteners. In this case, even if all parts are secured, the check should be repeated after 100 kilometers of the vehicle.
Is pumping necessary?
The main disadvantage of gas workers is their repairs. Gas equipment is traditionally complex. Repair requires going to a car service station. Do-it-yourself repairs will take a lot of time and effort. If you install a gas twin-tube shock absorber right away, it will be able to withstand light weight. The unit is also ineffective at serious height differences. The gas will lose the ability to slow down the piston, which leads to inevitable collapse and rapid failure of the entire system. To resolve the issue, it is necessary to pump the shock absorber. This is what is called moving the device to the working position. The procedure must be followed to prevent operational failures. One of the most common reasons is the occurrence of extraneous noise during operation due to air bubbles getting inside.
Repair
Since the VAZ 2109 is equipped with front and rear struts, the features of their repair should be discussed separately.
Such activities are not difficult to implement if you have at least a little experience. If it is missing, be sure to contact a trusted service station.
https://youtube.com/watch?v=QQ6KjwK-cV0
Front struts
To repair the front struts on your car, follow the instructions and rely on video tutorials.
Dismantling and replacement process
- Remove the racks and clean them of accumulated dirt.
- Use a special tie to secure the spring. This way it will not put pressure on the support cups.
- After securing the spring, remove the nut from the upper strut mounting assembly.
- Remove the upper support limiting assembly. The support and bearing can then be removed.
- Next in line are the top cup and spring assembly.
- Make sure the swing arm, lower strut cups, shroud, and bracket assembly are in good condition. If there are defects, this entire assembly is replaced entirely.
- Place the shock absorber vertically. Begin raising and lowering the rod assembly until it stops. If there are signs of abnormal noise, knocking, dips or jamming, completely replace the part.
- Using a chisel, remove the damper support assembly. Next, arm yourself with a wrench to unscrew the fastening nut that secures the rack body.
- Remove the nut, take out the rod and working cylinder.
- Be sure to drain all liquid from the shock absorber into a prepared container. If the liquid has retained its quality, it can be refilled and reused.
- Thoroughly clean the internal surfaces of the casing of the element being repaired.
- Install a new cartridge cartridge into the housing that matches your rack - gas or oil.
- Reassemble the unit, steps in reverse order.
- Replace faulty parts as assembly progresses.
- Carefully return the springs to their original state. This is due to the fact that it is clamped and can hurt your hands if you suddenly remove the lock.
- If the housing has lost its elasticity, cracks or crevices have formed on it, or traces of metal peeling off from the rubber have appeared, be sure to replace the component.
- If there are leaks from under the protective rings of the upper support assembly, or the bearing seizes, this assembly will definitely have to be replaced with a new element.
- It is recommended to change all used mounting bolts during the repair process in order to maximize the service life of the new elements installed during the process of restoring the functionality of the front struts.
The repair process includes quite a few stages, where the most important factor for success is accuracy and attentiveness. Otherwise the work is not difficult.
Rear pillars
The sequence of repair work on the rear pillar on the VAZ 2109 is as follows:
- Turn the gearbox into first gear;
- Place locking shoes under the front axle;
- Lift the rear part, securely fix it with supports, and then remove the rear pillar;
- Remove the buffer from the assembly and also remove the boot from the spring. Check their condition. If they are worn out or show signs of defects, replace them;
- Clean the shock absorber assembly thoroughly. Next, it should be clamped using a vice;
- Check whether the shock absorbers travel normally. If there are problems, the element is replaced with a new one;
- Make sure that the silent block located in the lower mounting unit is in good condition. The boot, buffers, gaskets, cushions and springs are also checked. If there are signs of wear or defects, all of them must be replaced;
- Remove the shock absorber rod, remove the fixing nut, deliver the cylinder and drain the liquid from it;
- Remove the compression valve housing;
- Fix the rod with a vice, remove the nut, valves, piston, bushing, oil seal race and the oil seal itself;
- Check the current condition of the specified parts. If there are signs of malfunction, be sure to replace it;
- Reassemble the unit and install the racks on the car.
Working on Rear Elements
Once repairs are complete, be sure to do a few test drives on smooth and rough roads. A comprehensive check will allow you to understand whether the repair was successful, or whether the entire unit needs to be replaced completely.
Any VAZ 2109 owner who has at least a little experience in self-repair can easily repair the struts. But if you don’t have the skills, use the services of a service station.
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Replace completely or repair?
A rather controversial question: change the racks or make repairs? If you come across high-quality repair kits, then why not restore them? The cost of work can be reduced by more than two and a half times. But this is only relevant for racks that have a collapsible design. But if the repair kit is of dubious quality, then it is better not to risk it and install new racks. It is also worth mentioning one small feature. If you do not fill in enough oil, the shock absorber will not work effectively. If you fill in too much oil, the oil seal in the upper part of the housing will most likely be destroyed. The error when pouring should be minimal. Therefore, a complete replacement of the front struts of the VAZ-2109 will be the most effective repair option.
