Replacement and selection of support bearing Lada Granta

The upper support bearing is an important element in the design of the Granta front strut. The “supports” are involved in the rotation of the front strut during a turn, and also absorb axial loads and provide rigidity to the mechanism.

The “support” itself is a housing of two cups, inside of which the bearing itself is located, consisting of a rubber separator with balls inside. It also contains gaskets (vibration and noise insulators). The listed elements, as well as the design of the front support, are presented in the photo.

Video review of the SS20 suspension (front struts, springs, bearings).

Video: “SS20 suspension: briefly about the main thing”

Causes and signs of failure, diagnostics

The node takes a dynamic (variable) load, and failure, as well as replacement, is usually required for several reasons:

Part wear, time to failure (service life);
Accidents, frequent driving in potholes, aggressive driving style;
Contamination of the support bearing from the inside, ingress of moisture and dust;
Malfunction of suspension (shock absorbers, springs).

The main sign that a support bearing will need to be replaced is that the Granta rattles and creaks under the hood or near the struts. This appears after 80-100 thousand kilometers, under appropriate operating conditions of the car.

The design of the “support” and the front pillar is complex; the following elements can fail:

The entire support, including the body (rarely) - position 4;
Support bearing (more often) – position 8;
Rubber gaskets wear out (more often) - position 9.

It is important to know:

Attention: To decide which element needs to be replaced , you should disassemble the entire assembly, the diagram of which is presented below.

Diagnostics of support bearings

To diagnose a breakdown, do the following:

Raise the hood, find the front supports;
Place your hand over the knot;
Start to strongly rock the car from bottom to top (or ask an assistant);
If you feel a knock or hear, as well as other incomprehensible sounds, it means that there are problems. It is worth disassembling or replacing the front support mechanism.
Watch the diagnostic video:

How to check support bearings

OP work problems and their consequences

Support bearing operation

The support bearing of the shock absorber strut is subjected to harsh use. Especially when driving on uneven roads, turning at high speed, or the driver not complying with the speed limit. The situation is aggravated by the fact that the design of many bearings (but not all) does not provide protection against the ingress of dust, moisture and dirt. Accordingly, over time, an abrasive mass forms in them, which accelerates the wear of their mechanism. If the design of your bearings provides for protective caps, but they are not in place (they were lost), be sure to order new ones. This way you will extend the life of the bearing. Also, do not forget to lubricate the bearing, we will talk about this later.

Thus, the main reasons for the failure of support bearings are the following:

Natural wear of the part. As stated above, support bearings must be replaced at least every 100 thousand kilometers of the vehicle (usually more often, given the state of domestic roads).
Abrupt driving style and failure to comply with speed limits. If the driver drives through potholes or turns at high speed, the load on the entire suspension of the car, and the support bearing in particular, increases significantly. And this leads to its excessive wear.
Low quality parts. If you decide to save money and buy a low-quality fake, then there is a high probability that the bearing will not last as long as indicated on its packaging.
Operating conditions of the machine. Depending on the conditions the machine is designed for and how it is used, support bearing failure may occur much earlier than predicted by the manufacturer.

When performing repair work on the shock absorber, shock absorber strut and other related parts, we recommend that you add grease to the support bearing. This will increase its service life and also reduce the load on all the elements listed above.

Preparatory measures for replacing the support bearing Do-it-yourself grants

Replacing the support bearing of the Lada Granda strut can be done in two ways.

Removing the front strut and unscrewing the wheel alignment bolts.
Removing the strut module along with the rotating mechanism and brake disc assembly without unscrewing the adjusting fasteners.

Both methods cannot be performed without removing the strut, but using the second method, which is described below, you can avoid another wheel alignment.

Preparation for repair

It is advisable to carry out the replacement in an inspection hole, so you will save time on the convenience of performing operations to remove/install the unit. The car is in first gear; to comply with safety regulations, use wheel chocks.

Tools for work

Any jack.
Large wrench to remove chassis bolts.
A long 30mm wrench for unscrewing the hub nut.
Clamps for tightening shock absorbers.
Tool for removing tie rod ends.
Hammer, chisel, core.
Set of keys (22, 17, 13).
"Ratchets" on 13, 17, 19.
Hex key for unscrewing the rod nut.
Special heads. "Eshki" E8 and E12.
Large negative screwdriver.
Pliers.
Penetrating lubricant such as WD-40.
Torque wrench for tightening the rod nut.

Required set of new parts

Supports or individual support bearings, depending on the breakdown;
Rubber gaskets (if you are only changing the bearing);
Boot with tie rod cotter pin (if replacement is required).

Self-diagnosis method

For self-diagnosis, you will need the help of another person.

Having chosen a flat surface, put the car on the handbrake and remove the protective covers from the glasses.

Have an assistant rock the car to set the shock absorbers in motion, and observe the behavior of the bearing yourself. The malfunction of the unit can be judged by:

by the presence of backlash;
when knocking or other sounds appear in the bearing area.

Make similar observations when your partner rotates the steering wheel, and then repeat the manipulations with the second pillar.

Replacing a strut bearing requires special tools and some plumbing skills. The best option would be to entrust the work to specialists, but if you are used to doing everything yourself, then you can do it yourself, but this is a topic for another article.

In any passenger car, regardless of design, the suspension must provide a smooth ride, good handling, each element of the chassis plays its role, and there are no unnecessary spare parts. The support bearing is a part of the front suspension, without which it is impossible to imagine a front-wheel drive car; if it were not there, the steering wheel would turn very tightly, with a terrible squeak, and it would be impossible to drive the car.

Recommendations for repair and assembly

Advice:

The videos will help you make a replacement and speed up the process of repairing your Grant.

Replacing the front shock absorber strut support:

Replacing the support bearing on Grant:

If the shock absorbers are oil, then the rod goes down to the bottom. Therefore, we assemble the mechanism quickly. It is easier with gas and combined models, since the rod only rises upward. In the case of an oil product, do not forget to pump them and remove air.
If you are installing the original front mount, replace the factory metal washers on both sides of the damper. When installing “supports”, for example SS20, this is not required; they are included in the kit.

Algorithm for self-replacement of rear struts of Lada Granta

Replacing an alternator belt without a tensioner on a Lada Granta and Kalina

A common reason for replacing a rear shock absorber is oil leakage from the cylinder, depressurization, loss of integrity, or seal defects. Less common spring sagging. Tools: open-end wrenches “17, 19”, a set of new struts, WD fluid – 40.

We fix the front wheels with wheel chocks and engage first gear;
We fold the back row of seats for ease of maintenance;
We pry off the rubber plug of the rear glass and remove it;
Unscrew the upper shock absorber fixing nut;
Jack up the rear wheel and remove it;
We hang the side of the car at such a height that the beam has free movement;
Unscrew the lower fastening, remove the eye from the seat;
Remove the shock absorber assembly;
Using a crab puller, compress the spring and remove the boot.

Replacing the Lada Grant strut with a new one, assembling the parts in the reverse order. When moving the rod in the upper position, it will be difficult to get into the hole; an assistant may be needed.

Replacing support bearings without removing the strut

Jack up the car and remove the wheel;
Using a crab puller, compress the spring several turns;
In the engine compartment, unscrew the three nuts securing the support bowl to the glass;
Unscrew the steering tip and unscrew the nut;
Lower the shock absorber assembly down;
We remove the support bowl and replace the Granta strut bearing.

The repair is completed by reassembling in the reverse order.

Grant strut spacer. For what. What is the price

In order to increase the service life of the glasses in the engine compartment and to prevent an increase in the angle of inclination of the pillars, the structure is reinforced with a metal beam. The ends are attached to support bowls and connected to each other by a metal pipe. This is the simplest design. Modernized versions have a different layout. But this is not for everyone.

The strut of the rear struts of the Grant is carried out by analogy with the front ones. The cost of the budget option is from 850 – 900 rubles. More complex designs from 1500 rubles. Everyone determines their effectiveness independently.

Repair, pumping of racks or replacement with new ones. Is there any reason

The difference in cost between replacement and partial repair is only 30 - 35%. If you have a very limited budget, then give Grant shock absorbers for pumping. If you have sufficient funds, buy new ones.

Reupholstering does not always give a positive result; sometimes the service life is several thousand kilometers.

Oil or gas-oil as a filler for racks

As in the previous case, start from the allocated budget for repairs. Obviously, the oil type is the cheapest, the least quality, with the shortest service life. Combined option: gas-oil - the most popular type of shock absorber filler. It has proven itself well on rough terrain, road potholes, bends, and ice. The cost of the kit is 17% more expensive than the oil equivalent.

Gas: high performance characteristics, long service life, versatility in use, wide range for any modification of the car. At the same time, the exorbitant cost is the main stumbling block for many owners, for whom the amount is unaffordable. Obviously, gas-oil ones are the optimal solution for most owners.

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The structure of the front shock absorbers

Grant front struts ( oil type ):

stock;
compensation chamber;
piston with baffle valve;
main camera;
compression valve

Gas type:

stock;
piston with valves;
separating piston;
gas.

Overview of the main shock absorber manufacturers

By default, hydraulic ones from SAAZ (Skopovsky Automobile Plant) are installed from the factory. They are not particularly distinguished by their quality, but with moderate use they can last up to 60,000 km.

Kayaba : Japanese, characterized by high quality, reliability, and long service life. When purchasing, be careful, as some of the products are made in China.
ASOMI: domestic manufacturer for GAZ, VAZ, LADA models. One year warranty from the date of installation. Judge the quality for yourself.
SS (SS): also a domestic manufacturer of racks for VAZs. Quality guarantee for two years, according to the owners' reviews, they are not bad, a little harsh.

In general, all shock absorbers are divided into three categories:

The differences in the categories are insignificant and unnoticeable for the average driver. The kit comes with a warranty card and operating instructions.

Video 2

In order to replace at least one of the elements that is part of the Kalina front strut, you need to remove the entire assembly from its seat.

To do this, open the hood and use a 22 wrench to rip off the upper support nut, while holding the shock absorber rod with a 9 wrench. There is no need to unscrew the nut completely yet.

We also use a wheel wrench to remove the wheel nuts and only then lift the car with a jack. Immediately you need to place a stop for belaying.

Now you can safely unscrew the wheel nuts and remove the wheel. The brake hose is attached to the strut, so it needs to be released from the mount so that it does not interfere when we remove the strut. Now we will need WD-40; we need to treat all the bolts and nuts that will have to be unscrewed. The main thing is to spray on the lower nuts and bolts of the shock absorber that secure the assembly to the steering knuckle.

We remove the steering tip nut and hit the eyelet into which the ball pin of the tip is inserted with strong blows, while inserting a pry bar between the steering tip and its mount on the rack.

If you have a special puller, you can press out the finger using it. Unscrew the two self-locking nuts securing the shock absorber to the swing arm. To do this, we use keys 17 and 19.

It is better to use similar heads and knobs.

After removing the nuts, it happens that the bolts do not come out. They have to be knocked out. You must first knock them out through a wooden block so as not to spoil the thread, and then, using a punch with a smaller diameter, knock out the bolt when it is already sunk into the steering knuckle.

Algorithm for self-replacement of rear struts of Lada Granta

We fix the front wheels with wheel chocks and engage first gear;
We fold the back row of seats for ease of maintenance;
We pry off the rubber plug of the rear glass and remove it;
Unscrew the upper shock absorber fixing nut;
Jack up the rear wheel and remove it;
We hang the side of the car at such a height that the beam has free movement;
Unscrew the lower fastening, remove the eye from the seat;
Remove the shock absorber assembly;
Using a crab puller, compress the spring and remove the boot.

Replacing support bearings without removing the strut

Jack up the car and remove the wheel;
Using a crab puller, compress the spring several turns;
In the engine compartment, unscrew the three nuts securing the support bowl to the glass;
Unscrew the steering tip and unscrew the nut;
Lower the shock absorber assembly down;
We remove the support bowl and replace the Granta strut bearing.

The repair is completed by reassembling in the reverse order.

Grant strut spacer. For what. What is the price

Repair, pumping of racks or replacement with new ones. Is there any reason

Reupholstering does not always give a positive result; sometimes the service life is several thousand kilometers.

Oil or gas-oil as a filler for racks

Replacing the bearing in the support

Now that the shock absorber strut is fully accessible, the first thing you need to do is fix the spring in one position. This is why you need a retainer. Once the spring is secured in the compressed position, the support can be removed. Insert the hexagon into the end of the strut rod and unscrew the top nut by 22. That’s it, the top support cup is easily removed, and access to the bearing is completely open. You can safely install a new one.

By the way, the sales kit also includes new support washers, and even if the old ones look decent, they need replacement. The factory ones are the same diameter, but the new ones are usually different. The large washer is placed down. Apply plenty of good lubricant and you can reassemble everything in reverse order.

Wheel bearing

This element serves for uniform rotation of the car wheels. There are 4 such bearings on the Grant. On average, their resource is 100 thousand kilometers. What are the signs of a problem? The main symptom is a characteristic hum when moving. It may get worse as the car turns. The hum can occur on either side of the car, depending on which bearing has fallen apart

The entire assembly is replaced with a new one, and it doesn’t matter whether the Lada Granta’s rear suspension or the front one. Pressed out using a puller with special paws

Pressing takes place in a vice. It is important to maintain alignment when pressing. If a bearing is installed crookedly, it will be subjected to high loads and may fall apart after just a thousand kilometers.

The car suspension is designed to level the movement on any type of road surface and provide comfort for the driver and passengers. The presence of vibration for a long time negatively affects all components and assemblies of the car - bolted and screw connections are weakened. Serious consequences include bent door hinges, sagging doors, and loose closure of the hood and trunk.

The chassis of the Lada Granta has become more modern and modernized. Especially in comparison with previous AvtoVAZ models - two generations of Samara and first generation Kalina. The car has rear and front suspensions, which differ significantly from each other.

The rear suspension of the Grant is the same for the sedan and liftback. In fact, this is the same beam with springs and shock absorbers that is installed on Kalina, Samara and Samara 2. Instead of a stabilizer, a beam is used, which means the structure is dependent.