How to replace the front hub of a VAZ 2109 yourself

Front hub and its parts

In a VAZ 2109 car, replacing the front hub is necessary if it is worn out. The hubs, in turn, play a very important role. Without them, the wheels will not rotate at the required speed, which will first lead to damage to the brake system, and then to failure of the entire car. Therefore, if there are any problems with the front hubs, they need to be diagnosed in advance so that later it is not too late. Replacing the front hub of a VAZ 2109 is a difficult and responsible task, but you can handle it in your garage yourself.

Front hub wear

Replacing the front hub on a VAZ 2109

Typically hub wear manifests itself in the following ways:

• ​ There is play in the hub bearings, that is, they wobble slightly.

Note: the play should not be allowed to be too strong, as this will require replacing not only the hub, but also the bearing.

• ​ The bearings are “humming”. While driving, strange sounds are heard coming from the wheels. As a rule, with increasing speed they become even more pronounced. After this, when the speed decreases, the noise does not become less quiet.

Note: If the hum is heard on only one side, then only one hub needs to be replaced. If it occurs in both wheels, both hubs need to be replaced immediately.

• ​Bearings This can cause the caliper to overheat as well, causing it to fly off as well. In addition, the brake fluid also boils too quickly. This leads to rapid failure of the braking system.

Causes of hub wear

Replacing the front hub on a VAZ 2109

Usually there are the following reasons due to which the hub wears out:

• ​ The wheel bearing has completely fallen apart. Perhaps it is only in the early stages of destruction. In any case, it will have to be changed, but after appropriate diagnostics.

Replacing the front wheel hub of a VAZ 2109

• ​ The wheel bearing nut is not tightened properly. Such an oversight can cause backlash. In this case, you can get by by simply screwing in this nut all the way. That is, you should not change the hub or its bearing.
• ​ The steering tip does not work well.
• ​ There are shortcomings in the operation of the upper or lower ball joint.

Replacing the wheel bearing of VAZ 2108, 2109, 21099

Replacing the wheel bearing , pressing it out and pressing it in for VAZ 2108, 2109, 21099 cars, which is carried out in this photo report, is carried out after the steering knuckle has been removed.

Before replacing the wheel bearing

, it is worth knowing a few details of this procedure.
A double-row ball bearing is installed in the VAZ wheel hub, which does not require lubrication or adjustment during operation. When pressed out, this bearing is destroyed. If you press the bearing in with a hammer, it will collapse, so you should use a press or vice. The pressing force is applied to the outer ring of the bearing to avoid damage to it.

How to diagnose bearing play

VAZ 2109 front wheel hub

In fact, this process is very simple, and even a beginner can do it. For this:

• ​ Raise the car using a jack to the optimal distance.

Note: It is much easier to diagnose using an inspection hole, but if you don’t have one, a jack will also work.

• ​ Bleed the wheel. This should be done according to a certain pattern: hold the wheel on both sides, squeezing it as much as possible. You should swing your arms in the same direction (preferably away from you). By the way, this procedure is also carried out in car services, so it is advisable to attend it in order to be prepared for its implementation later.

VAZ 2109 front hub

• ​ If there is slight play, the bearing nut should be tightened as much as possible.

Note: if this does not eliminate the play, then the hub or its bearing must be replaced.

• ​ You should still hold the wheel on both sides. However, now you need to pump it not in one, but in different directions. What does it mean? You just need to press the wheel towards you with your left hand, and away from you with your right. If play is also observed, then the reason is not in the hub. In this case, the steering tip is faulty. It should be replaced.

Note: In some cases, tie rod ends are sold complete with tie rods. However, these thrusts do not always need to be changed either. They can be left, replaced if they break soon.

• ​ Pull the wheel, placing maximum emphasis on the top of the wheel. If in this case there is also play in the bearing, then the upper ball joint should be replaced.

VAZ 21093 front hub

• ​ Pull the wheel by the bottom. Accordingly, if there is still play, then the lower ball joint needs to be changed.

Note: if only one bearing has failed, then it is better to immediately change the second one, since it will most likely also break very soon.

Bearing selection

To replace a wheel bearing, you will need to know about its parameters, dimensions, and characteristics specific to the VAZ 2109.

For the “nine”, a double-row angular contact roller bearing with tapered rollers is used. Axial clearances are pre-adjusted and filled with lubricant. Closed bearing type.

Based on the table, you can find the optimal bearing for the front hub of your car.

Replacing the front hub

Necessary:

• ​ Unscrew the wheel nut with a 30 mm socket.
• ​ Raise the car on a jack.
• ​ Remove the wheel.
• ​ Remove the brake caliper.
• ​ By removing the brake disc, you will have access to the front hub.
• ​ Unscrew the hub nut. It is secured with three bolts. The bolts are too close to each other, so the head becomes very tight here and is difficult to rotate.

Note: You can loosen these bolts slightly and then remove them. If the bolt is very tight, you can warm it up.

• Using a screwdriver, pull the hub out of its seat.

Mounting the front hub on a VAZ 2109

• ​ Thoroughly clean the seat.
• ​ An oil seal must be inserted into the hub housing. It needs to be pryed off, as it will get in the way (it can be inserted into a new hub). To make it fit better, its seat should be lubricated with oil.
• ​ Traces of dirt will remain under the oil seal, so that in the future dirt does not get under the new oil seal, it is necessary to lubricate it with a special liquid.
• ​ Put the hub in place. Lightly tighten the hub nut so that the hub does not fall out.
• ​ Press it in.
• ​ Tighten all the necessary screws on the reverse side.

Replacing the wheel hub of a VAZ 2109 with your own hands

Usually the hub is dismantled to replace the bearing. The decision to replace the hub is made after dismantling the bearing and inspecting the part.

Replacing the hub on a nine with your own hands

The sequence of work is as follows:

1. At the initial stage of work, the car should have its wheels on the ground. We fix the wheels from turning - we install shoes under them, and engage the gear. Remove the hub cap.

2. Using a socket wrench, unscrew the bearing mounting nut 1-2 turns (photo 1). We jack up the front (or rear) of the car until guaranteed gaps appear between both wheels and the ground. The wheels must be raised so that the anti-roll bar does not affect the suspension components and does not interfere with dismantling.

3. Dismantle the wheel, brake pad guide with caliper. After dismantling, the removed components should not hang on the brake hoses; they must be tied up.

4. Remove the already loosened nut and washer.

5. We dismantle the hub with a special puller or improvised means, for example, using a brake disc and bolts (M12x1.25, L=130 mm). To do this, we need to assemble them in accordance with photo 2. The bolts are installed in the holes of the brake disc and screwed into the threaded holes hubs. You need to hit the bolt heads with the brake disc several times and remove the hub.

6. Due to the tight fit, the inner race of the bearing remains on the hub. To remove it, you need to use a special puller (photo 3) or a chisel (photo 4).

7. Inspect the hub, remove nicks and nicks with a file.

8. To dismantle the outer race of the bearing, it is necessary to remove the retaining ring with pliers (Photo 5) and remove the outer ring with a special puller (Figure 6).

9. We check the hub by installing a new bearing on it. If the bearing fits easily, the hub must be replaced due to wear.

Thanks for subscribing!

10. Clean the seat of the outer race in the saddle and lubricate it. We press the bearing into the seat with a special puller, which transfers the force to the outer race (photo 7). You can mount the bearing with a hammer and drift, but you must have experience in such work.

11. Fix the outer ring with a locking ring (photo 5).

12. Press the hub into the bearing using a special device (Figure 8).

13. Reinstall the removed parts and components in reverse order. Tighten the bearing mounting nut to the torque specified in the technical requirements of the vehicle.

Checking the wheel bearing

The condition of the wheel bearings should be checked not only at intervals determined by the manufacturer, but also during each vehicle diagnosis. During inspection, it is necessary to determine the correct rotation of the wheel, which should not have free axial displacement (play). For this purpose, you need to act in the following sequence:

We spin the car wheel clockwise, checking it for extraneous noise.

• Alternately, in different planes, we loosen the wheel perpendicular to the hub axis. We act with both hands at the same time.

Checking for play is done by rocking the wheel in a vertical plane.

Be sure to test the rear hub for vertical and horizontal play.

In the horizontal plane, play is less common, but diagnosing this malfunction is mandatory

• In the first case, a check is made for the presence of corrosion “shells” and the cleanliness of the roller track, in the second, the wear of the treadmills is checked, where even a small play should not be noticed.

An example of wear on the running part of the outer race of the bearing

Video: how to check your car wheels for play yourself

How to remove a bearing on a VAZ 2109 using method No. 2 with removing the strut, but without using a puller

The entire structure is removed, along with the steering knuckle. The part is replaced directly on the rack (possibly with a removable device). There is no need to do a wheel alignment.

Execution order:

1. Unscrew and remove the steering tip as well.
2. After this, you will need to free the strut from the top bolts under the hood.
3. We also remove the strut assembly from the CV joint and disconnect it from the car.
4. Now we change the part using the methods described above. Either using a puller, or using mandrels to remove and then press in a new front wheel bearing

Important to know: It is not recommended to use impact methods, especially when installing a new part. Use the pressing options described in method No. 1 or No. 3.

Minimum list of tools and spare parts:

• flat screwdriver,
• chisel,
• hammer,
• spanners,
• socket wrench or 30mm socket,
• wd-40,
• jack,
• wheel wrench,
• small mount,
• lubricant for bearings (CV joint, lithol),
• new bearing,
• puller

Pullers come in different types. For example, a universal puller. That's why their sizes are different. When purchasing, take the one you find convenient.

Wheel hub puller for VAZ 2109

Wheel bearing diagnostics, causes and signs of failure

Let us briefly list the signs of this breakdown:

• Noise when driving from the front (right or left), and when turning there is also a noise or howling.
• Vibration in the interior is a sign that repairs are required, as the lubricant may have dried out or a lot of dirt has entered.
• A grinding or crunching sound means that the wheel bearing has already fallen apart.

Before jumping to conclusions, do a step-by-step diagnosis:

1. Jack up the side where there are characteristic signs, but before doing this, remove the wheel.
2. Rotate the disk by hand; if there is a “rolling” sound or other noise, a replacement is needed. When the product is in good working order, rotation is smooth, without jamming or noise.
3. Remove the brake disc, check the hub play by moving it by hand in the axial direction - if you feel the movement without measurements, then the product needs to be replaced.

Causes of breakdown: - Inappropriate driving, in holes, potholes in the asphalt. - Frequent overheating of the mechanism. - Damage to the boot, contamination of the spare part from the inside. - Wear of the product according to the warranty service life (stated 60 thousand km). - Malfunction of other elements (balancing is disturbed brake disc, wear of the turning mechanism or wheel imbalance, etc.). Be sure to watch the video on how to check the wheel bearing:

Tips for replacing front wheel bearings on a VAZ 2109

1. It is recommended to replace the product on both wheels of the car at once; in this case, it is recommended to do a wheel alignment. It is recommended to additionally check the rear wheel bearings.
2. Did you cool the p/sh before installation? We recommend that you also heat the rotating mechanism, then no effort will be required to press it in.
3. Purchase spare parts only from trusted retail chains with dealer certificates and product quality certificates.

Sources

• https://motorltd.ru/menyaem-perednij-stupichnyj-podshipnik-vaz-2109-svoimi-rukami/
• https://ladaautos.ru/vaz-2109/zamena-perednego-stupichnogo-podshipnika-vaz-2109.html
• https://zamena-podshipnikov.ru/zamena-perednego-stupichnogo-podshipnika-vaz-2109.html
• https://remontautohelp.ru/zamena-perednego-stupichnogo-podshipnika-vaz-2109-vaz-21099-svoimi-rukami/

[collapse]