Replacing a CV joint on a VAZ 2109: procedure

Installing new hinges

And the final stage remains - installing new hinges on the drive. You already know almost everything about how to change a grenade on a VAZ-2109. All that remains is to install a new element.

First, wash the shaft, get rid of dust and lubricant residues, then put on a new boot. Next, perform the following manipulations:

Install a new retaining ring.
Carefully, trying not to damage it, place the grenade on the shaft. To make it sit down, you need to apply several sharp blows through the wood spacer.
Apply lubricant under the boot and on the inside of the hinge. By the way, the kit comes with a small amount, it is recommended to add a little more.
Secure the boot with two clamps.

Once you have assembled the entire drive, you can begin installing it on the car. The work is done in reverse order. First put the inner CV joint in place, then the outer one.

Tighten the nut and secure it with a chisel. To prevent corrosion, you can apply a small amount of Litol to the nut and close it with a cap. Now you know how to change a grenade on a VAZ-2109 yourself. The procedure will not take much time, but you can save a lot of money. Workshops will charge about the same amount for repairs as a set of hinges costs (about 1,000 rubles).

How to remove a grenade from the drive?

The internal grenade is removed from the gearbox by light tapping. But one condition must be observed - if you remove two inner grenades from the box at once, do it one by one. First, take out one, replace it with a plug, then the second. Otherwise, the differential may simply fall apart. And for repairs you will need to completely disassemble the gearbox.

Now let's talk in more detail about how to change the external grenade on a VAZ-2109. This is not a very difficult matter, but it will require skill. The first thing you need to do is cut off the old boot - you won’t need it anymore, so you can remove it in this “barbaric” way. The clamps, of course, also need to be removed.

After this, clamp the shaft tightly in a vice so that the grenade is at the bottom. Position it so that it sits flat on the shaft - you can knock it down faster. Apply several sharp blows through the wooden spacer. The grenade should come off the shaft without any problems. You cannot strike with metal objects, as you can destroy the integrity of the element. When replacing grenades on a VAZ-2114, it is necessary to remove the drives completely, this will significantly simplify the repair.

CV joints in a VAZ 2109 car

After front-wheel drive cars began to be produced, the question arose about effectively ensuring equality of angular velocities of the shafts - driving and driven. Further use of a crosspiece with four needle bearings in the cardan drive led to an increase in the dimensions of the unit, the price of the structure increased, and the torque began to be transmitted with great vibration; the greater the angle between the shafts, the stronger it was. Initially, the intended service life of CV joints is similar to the service life of a car, but after the start of operation it was revealed that wear still exists and the outer part of the unit wears out more. The use of a moisture- and frost-resistant material with good flexibility for the manufacture of the CV joint boot made it possible to protect the CV joints from rapid wear. But, nevertheless, the action of external factors, such as moisture, abrasive, constant deformations lead to a limitation of the service life of CV joints. In addition, there is a possibility that during operation and repair the boot may be damaged. Cracks may form on the protective rubber band, which is unacceptable for normal operation of the unit. The defect of the shaft and its curvature are less noticeable to the naked eye, but the use of the part in the future is unacceptable. Therefore, it is periodically necessary to monitor the condition of the outer CV joint on a VAZ 2109 vehicle, and, if necessary, carry out its timely repair or replacement.

Replacement

If problems arise with grenades, you should determine which ones have problems. Next we will look at how to change the drive and how to remove it. Additionally, we recommend watching the repair manual video.

The procedure for replacing inner and outer CV joints differs from each other, therefore each stage should be considered separately.

Let's start with the internal.

Inner CV joint

Rubber boots are a vulnerable element of the grenade design. It is not uncommon that by replacing the boot, washing the grenade with gasoline and applying new lubricant, it is possible to solve the problem. If the wear of the CV joint is insignificant, such measures can replace a full repair.

But if you discover the breakdown late, you will have to completely replace the inner CV joints.

Apply the handbrake and install chocks under the wheels.
Unscrew the hub nut using a wrench and a socket. Carefully remove the punching elements from the nut with a punch. This way you will be able to preserve the carving on the garnet. The nut itself will need to be replaced with a new one during reassembly.
The main thing here is to unscrew the nut, lowering the wheels to the ground. Otherwise, you risk breaking the differential and other gearbox components.
Raise the car using a jack on the desired side, first loosening the wheel nuts. Remove the wheel.
Drain the gearbox oil. This can be done earlier, at your convenience.
Release the steering knuckle from the ball joint at the bottom. To do this, unscrew a pair of mounting bolts.
Since you have already removed the hub nut and unscrewed the ball joint from the steering knuckle, proceed to removing the splined part of the grenade. To do this, pull the brake disc and strut assembly towards you. She has a decent ride. Just remember to turn the steering wheel all the way so that the tip of the steering wheel extends as far as possible.
Pry the inner grenade with a pry bar, which will allow you to remove the drive.
Having taken out the CV joint, look at the condition of the oil seal in the gearbox. If you find traces of leaks, be sure to replace the element.

The internal drive (CV joint) is designed to work with smaller angles, its boot is less susceptible to negative influences. Therefore, the internal grenade is changed quite rarely.

Outer CV joint

The outer grenade wears out more actively, so replacement is carried out more often.

Under no circumstances remove two CV joints from the gearbox at the same time. Otherwise, it will cause the gear to become misaligned. Remove one at a time or insert special inserts in place of the hinge.

If you have extensive experience in such matters, it is quite possible to knock out an external grenade right under the car. It saves time and effort

But such a task requires increased attention and caution in actions. Ensure that the axle shaft is stationary or has limited movement. If this is not done, the axle shaft will move when hitting the grenade clip with a hammer

Because of this, the inner CV joint will simply come out of contact and split into parts inside the boot. Therefore, you will have to dismantle the unit completely, and this is a very difficult task. You can hold the axle shaft with your hands, but a more effective means is a hand vice or a gas wrench. It is better to enlist the support of a partner. This is the best option. Take a fairly heavy hammer with a short handle. If damaged, cut, turn or move the boot to the side so that it does not interfere with striking. The blows should be made sharp, but at the same time careful. There is no point in hitting the element with great force. Due to successive blows, the resistance of the locking ring should weaken, which will allow the outer grenade to be removed from the axle shaft. Thoroughly treat the seating area with gasoline, clean it with a rag and put a portion of new lubricant into the hinge. A new boot is put on the axle shaft and a brand new CV joint is mounted.

Dismantling works

To secure the boot to the axle shaft and body of the new grenade, many use ordinary plumbing clamps. The practice of VAZ 2109 owners shows that they are more convenient and more efficient than standard fasteners provided by the factory.

Changing CV joints is not the easiest task, but this stage cannot be called incredibly difficult either. The main thing is to use high-quality new grenades so that in the next few tens of thousands of kilometers you will forget about them. But they didn’t remind us of themselves.

Loading …

Removing the drive, boot and CV joint

To replace the outer CV joint, follow the following procedure:

We place the car on the inspection hole and support it with wheel chocks.
Using a 30mm socket, loosen the hub nut. If the nut does not break off, then you can extend the key with a pipe.

Raise the car with a jack in the right place and remove the wheel.
We unscrew the bolts securing the ball joint of the lower arm to the hub.

We squeeze out the tie rod end with a puller.

Unscrew the drive shaft nut completely.
We pull out the hub by grasping the brake disc and pulling the shock absorber strut towards us.

To change the boot and hinge, you will have to climb into the inspection hole. To remove the CV joint, remove the clamps that hold the boot. Next, we get rid of the old boot, which is easier to do with a knife. Use a rag to remove grease from the hinge. Then you need to knock down the inner race, for which we lightly hit the attachment with a hammer, which must be rested against the end of the hinge. Next, we thoroughly clean the CV joint from dirt, sand, dust and grease.

Types of CV joints

Before you begin repairs, you need to find out exactly how the unit is designed.

The pair of drives on the VAZ 2109 is equipped with a total of 4 CV joints.

There are 2 of them. They transmit torque to the axle shaft from the gearbox

There are also two of them. Installed on the ends of the axle shafts and transmit torque directly to the wheels

Outer

This arrangement of grenades allows the wheels to rotate during turns and constant operation of the suspension system. To put it simply, the outer CV joints are responsible for transmitting torque when cornering, and the inner ones are responsible for the vertical movement of the wheels. These are collisions with bumps, holes, roll in turns, etc.

Interior

Outer CV joint

The outer grenade wears out more actively, so replacement is carried out more often.

If you have extensive experience in such matters, it is quite possible to knock out an external grenade right under the car. It saves time and effort

Dismantling works

Any experienced car mechanic is ready to say that replacing the VAZ-2109 CV joint may be necessary for a large number of reasons.

CV joint - constant velocity joint. The need for replacement requires immediate action at the slightest suspicion, because the safety of passengers depends on the integrity of this unit.

Causes and breakdowns

In reality, the resource of the CV joint turns out to be significantly less, which is caused by operating conditions, poor quality of roads, driving habits and other factors.

The CV joint is popularly called a “grenade,” which is due to the external similarity of the element to this explosive device.

Here's what you should know about grenade malfunctions:

Practice shows that the most common cause of CV joint failure is dirt, dust, and sand that enter the mechanism through a damaged boot;
Sometimes the problem of a non-functioning grenade can be solved by replacing the boot. This is possible if the CV joint itself has not yet worn out due to exposure to contamination;
If the damaged boot is not detected in time, the grenade will be completely worn out within literally 200 kilometers;
If the CV joint fails, a strong crunching sound appears when cornering and accelerating. Such a symptom indicates the need to urgently replace the CV joint;
The cost of new grenades is quite affordable; they are available at any auto parts store. But you should purchase those that meet the technical requirements of the VAZ 2109;
If you have at least a little experience in repairing cars yourself, it is quite possible to replace a grenade with your own hands.

Old and new element

Checking the condition of the CV joint

To carry out diagnostics it is necessary to use several methods. After all, you need to determine whether the VAZ-2109 CV joint needs to be replaced. The very first is the appearance of a crunch when cornering. As a rule, this is a sign that the outer hinge is very worn and requires replacement. In addition, a similar crunching noise may occur when reversing. This is not fatal, but it is also not very pleasant, since you have to forget about a comfortable ride.

The main thing when diagnosing is not to confuse the symptoms with those that occur when certain suspension elements break down. For example, when moving in a straight line, only heavily worn joints will crunch. The most common cause of such sounds is the ball joint. A more detailed picture can be obtained if the car is placed on a lift and the entire suspension is suspended. In this position, you can determine what kind of play the hinge has, and whether there is a knock in the ball joint. In addition, this position is most convenient when replacing the outer CV joint of a VAZ-2109.

You can talk endlessly about how to change joints correctly, what lubricant to use, which manufacturer you should trust. In fact, the most suitable components are those whose manufacturers supply them to the AvtoVAZ plant. When replacing the external CV joint of a VAZ-2109, preference should be given to the manufacturer who supplies them to the plant. As practice shows, the service life of these elements turns out to be higher than that of foreign analogues. No matter how much they scold our auto industry, the reliability of domestic units is an order of magnitude higher than the vaunted German or Italian ones.

How to look younger: the best haircuts for those over 30, 40, 50, 60 Girls in their 20s don’t worry about the shape and length of their hair. It seems that youth is created for experiments with appearance and daring curls. However, already last.

Our ancestors slept differently than we do. What are we doing wrong? It’s hard to believe, but scientists and many historians are inclined to believe that modern man sleeps completely differently than his ancient ancestors. Initially.

10 charming celebrity children who look completely different today Time flies, and one day little celebrities become adults who are no longer recognizable. Pretty boys and girls turn into...

11 Weird Signs That You're Good in Bed Do you also want to believe that you please your romantic partner in bed? At least you don't want to blush and apologize.

Never do this in church! If you are not sure whether you are behaving correctly in church or not, then you are probably not acting as you should. Here's a list of terrible ones.

9 Famous Women Who Have Fallen in Love with Women Showing interest in people other than the opposite sex is not unusual. You are unlikely to be able to surprise or shock anyone if you admit it.

Basic procedure

First of all, you should put the car on the parking brake and secure the rear wheels with blocks. After this, while the car is on the ground, the hub nut is loosened. You will first need to remove the protective cap. It should also be taken into account that this nut is tightened quite tightly, so you will have to make a significant effort. At this point you can loosen the wheel bolts.

Next, you need to raise the front of the car by placing the body on supports. After this, you can unscrew the wheel bolts completely, removing the wheels, and remove the hub nut stop washer. The next step is to disassemble the steering rod, or rather its tip. The fastening bolts of the lower part of the steering knuckle support are screwed together, after which it is necessary to turn the steering wheel in the direction from which the replacement is being made until the extreme position is reached.

Next, the spitz end of the outer CV joint of the VAZ 2109 is pulled out from the hub, after the steering knuckle and strut have been pulled out. The next step is to press out the inner CV joint secured in the gearbox, for which it is better to use a pry bar.

It is important to pay attention to the fact that if it is necessary to carry out work on all CV joints, it is recommended that after removing one drive, install a retainer in the box, which can be an old similar part of the inner CV joint. Otherwise, the gears will shift, due to which the CV joints will not be able to be installed in place

If traces of oil were observed in the area of the gearbox during operation of the vehicle, then the seals on the CV joints will also need to be changed. Next, you need to clamp the drive shaft with a vice, remove the clamps from the hinges and unscrew the boots if they are intact. It is enough to cut off torn anthers with a knife.

The CV joints are knocked off the shaft with a hammer and drift, with the main forces being applied to the hinge cage. The same is done for the outer CV joint.

If you only need to replace the anthers, then the joint should be washed with gasoline to get rid of old grease and traces of dirt.

The new boot is placed on the shaft, but it is important to keep in mind that the right shaft is longer than the left. In addition, it is better to immediately replace the lubricant in the CV joint, making sure there is enough of it

Removing grenades on a VAZ 21099

The work must be carried out on an inspection pit or overpass. Put the car on the handbrake and secure the rear wheel with wheel chocks. Now the hardest part is to remove the nuts that secure the grenade to the wheel. To do this, you will need a 30mm socket wrench, and to do everything successfully, you need a good lever. The best option is to make an extension from a piece of pipe.

Next, lift the car on a jack, put it on a support and remove the wheel. Now you need to disconnect the steering rod from the steering knuckle of the strut. This is done using a special puller. And the ball joint is simply unscrewed; there is no need to press it out. Just try not to damage the anthers, otherwise you will have to change them.

Now that the strut is free, you need to turn it to the right or left (depending on which side of the car you are working on) and remove the hub from the CV joint. It should fall out, now all that remains is to remove the inner one, which is in the box. This is why an inspection hole is needed, because it is much more convenient to perform this operation in it. The grenade is removed using a crowbar.

Removing the drive

You can now remove the disk. Even replacing the VAZ 2109 external CV connection boot is better and faster when the drive is completely removed. But not only this trick. The fact is that when replacing the boot, you should wash off the hinge and pour new lubricant into it. This way you can increase the service life, unless, of course, you “kill” the discs with an aggressive driving style. Unscrew the nut completely from the hub. Now you can remove the outer CV ball from it.

To do this, carefully, trying not to damage the brake tube, pull the stand while holding the disc. The hub should be easily removed from the splines on the disk. That's it, now you need to extract the internal

Consider the fact that you have already dried the oil out of the box. Therefore, using a small chisel that you place between the box and the joint, as well as a hammer, knock the CV joint out of the gearbox

Do not try to catch the crowbar; in this case, only a weak but sharp blow will save you.

Features of repairing the internal CV joint

To replace the inner CV joint, it is necessary to completely remove the drive, for which the outer joint is first disconnected without subsequent dismantling. Next, using a pry bar, remove the hinge end from the gearbox. To do this, we insert the flat part of the tool between the outer frame and the box, and then move it like a lever.

Further, the procedure for replacing the unit will be similar to the actions when repairing the external hinge. The inner CV joint must be correctly inserted into the transmission. It is recommended to insert the part into the hub, with the help of which the unit is brought into place by pushing movements. But it is also possible to drive the already assembled shaft with a mallet or a wooden pointer and a hammer. The hinge must be secured with a locking ring.

At the final stage, all removed parts are installed back. At this point, the replacement of CV joints is considered completed.

Replacing the outer CV joint of a VAZ 2109 (2108, 21099)

You can replace the outer CV joint (angular velocity joint, “grenade”) on a VAZ 2109 (2108, 21099) without removing the wheel drive.

Necessary tools, accessories and spare parts

Soft metal drift

Key "30" (knob with head)

Key "17" (head or socket)

Pliers (preferably extendable)

Slotted screwdriver or circlip remover

New outer CV joint (they are the same for both wheel drives of the car)

New CV retaining ring

CV joint lubricant (CV joint-4 or equivalent) 40 g

New hub nut

If necessary, CV joint boot and clamps for it

Preparatory work

Place the car on a level surface and securely fix it (handbrake, wheel chocks)

Using a thin chisel, we bend the edges of the wheel hub nut (they are bent to fix the nut in the groove of the CV joint shank)

We loosen the tightening of the front wheel hub nut (where the replacement will be made) using a “30” wrench

We jack up and hang both front wheels of the car (this way we remove the clamping force of the anti-roll bar on the suspension and thereby make it easier to dismantle the necessary parts)

We clean the parts of the front suspension and wheel drive from dirt

We use the key at “30”. Remove the nut and washer underneath.

Unscrew the wheel hub nut using a “30” wrench

Disconnect the ball joint

It is attached with two 17mm socket bolts to the bottom of the steering knuckle. Unscrew and remove the bolts.

Disconnect the front suspension ball joint

Disconnect the outer CV joint shank from the wheel hub

We move the front strut towards ourselves, and pull the shank out of the hole in the hub. At the same time, we try to prevent the inner CV joint from being pulled out of the gearbox (we try not to move the drive towards ourselves too much). At this stage, it may be difficult to remove the shank from the hub since there is a splined connection that “sours” over time. To facilitate dismantling, you can hit a couple of times with a hammer through a wooden spacer (block) at the end of the shank.

Remove the CV joint shank from the hole in the wheel hub by moving the front strut towards you

Removing the CV joint boot

Both clamps from the CV joint need to be removed - large and small. We use a screwdriver and pliers to disconnect the clamp lock. After removing the clamps, move the boot up along the “stick” of the drive (so as not to interfere).

Remove the CV joint boot clamp using a screwdriver

We remove the outer CV joint (“grenade”) from the drive shaft

We turn the CV joint so that its inside is visible. We knock it off the drive shaft using a soft metal drift. We strike the clip. At the same time, we try to hold the drive so that it does not jump out of the gearbox. The separator and the balls inside it cannot be hit. Usually a couple of blows are enough, since the CV joint is attached to a spring retaining ring, which is easily compressed.

We knock the CV joint off the drive shaft using a soft metal drift and a hammer

Use a screwdriver or puller to pry up and remove the retaining ring. There is no need to remove the thrust ring.

CV joint thrust and retaining rings 2108, 2109, 21099

Installing a new CV joint

We put new lubricant 20 grams into it. We install a new retaining ring on the drive shaft. We place the CV joint straight and hammer it onto the shaft with a hammer through a drift. We install the boot in place by first putting the remaining 20 grams of lubricant into it. We install clamps. We tighten the clamp locks with pliers. Before tightening, squeeze the air out from under the boot by squeezing it a little.

Notes and additions

The reason for replacing the outer CV joint on a VAZ 2109 may be the appearance of a crunching sound from the suspension when driving at low speed and simultaneously turning left (right). This suggests that, as a temporary measure to eliminate the crunching noise, you can try to wash the cavity of the CV joint (“grenade”) with diesel fuel or gasoline, dry it and apply new lubricant.

For more details about the malfunctions of the CV joints of the VAZ 2108, 2109, 21099 and how to diagnose and eliminate them on your own, see the page: “Signs of a malfunction of the CV joints of the wheel drives of the VAZ 2108, 2109, 21099.”

How to independently determine problems with the constant velocity joint on the “nine”?

Lubrication Both types of hinges are structurally one unit, but the outer one breaks much more often due to high loads and rotation angles. Let's look at some signs of identifying a malfunction and ways to detect it:

when trying to move the wheel hub in different planes, play is felt;
when changing speed or starting off, the car moves jerkily;
with the steering wheel turned to the maximum, start moving - the faulty outer joint makes a certain crunching sound;
extraneous noise in straight-line motion indicates a problem with the internal joint.

Good diagnostic results are obtained by a technique that allows you to lift the car (at least jack it up). Here it is possible to rotate the wheel when the internal joint is maximally curved. It is in this way that you can hear the so-called hinge “crunch”, which allows us to speak with absolute certainty about the breakdown of the constant velocity joint.

Use of CV joints in a VAZ 2109 car

The installation of CV joints began to be performed on front-wheel drive cars. This is due to the fact that the use of a crosspiece in the cardan transmission, with four needle bearings, as in rear-wheel drive vehicles, does not ensure the required equality of the angular velocities of the shafts - driven and driven. When using such a device, it will be associated with an increase in the dimensions of the unit, the price of the product will increase, and the torque will be transmitted with a large pulsation, which will increase with an increase in the angle between the shafts. The design of CV joints provides a service life the same as the service life of a car, but during operation it was revealed that wear of the elements occurs faster, especially its external parts. Although they are made flexible, from moisture- and frost-resistant materials, under the influence of external factors the part does not serve for a long time Maybe. It is greatly influenced by constant deformation, large amounts of abrasive and moisture. In addition, during repairs or long-term operation of the car, the boot may become damaged, and cracks may appear on the protective rubber, which will lead to failure of the element. The shaft leading to the CV joint may also be damaged. Often this defect is difficult to notice with the naked eye, but with a crooked shaft the operation will not be normal. All this leads to the need for repair or replacement of the CV joint.

How does the internal CV joint of a VAZ 2109 car work?

In order to determine the structure of the CV joint, it can be disassembled. To do this:

The hinge moves and is removed from the spline shaft.
Use a screwdriver to pry up and remove the plastic stop, as shown in the photo.

Removing the plastic stop

The hinge shaft is clamped in a vice.

Removing the retaining ring

Using pliers, the separator with the cage and balls is removed.
Six balls are pulled out with a screwdriver.
The clip is disconnected from the separator.

If, after dismantling, all parts are in good condition, the assembly can be assembled by first putting 80 cm3 of lubricant into its cavity. Such a complex design of the internal CV joint on the VAZ 2109 shows how difficult it is to disassemble and repair it. And if dirt gets in and the protective cover is damaged, other parts of the CV joint may become unusable. The component elements of the product are not interchangeable, so the best option for a VAZ 2109 car would be to replace the internal CV joint along with the boot (see How to replace the boot). Traces of grease visible on the joint body indicate a break in the boot. If oil leaks at the junction of the gearbox and the drive axle shaft, this indicates wear of the inner “grenade” oil seal, which requires replacement. A characteristic “crunch” when the car moves around corners indicates the need to check the angular velocity joints. A noticeable “play” when rocking the drive axle shaft with your hands or at least a torn joint cover indicates that the VAZ 2109 internal CV joint needs to be replaced.

How to replace the internal CV joint of a VAZ 2109 car

The instructions for replacing the internal CV joint of a VAZ 2109 car with your own hands suggest the following procedure:

The oil from the gearbox is completely drained.

The hub nut is unscrewed.
You need to remove the wheel.
Unscrew the ball joint, which will free the strut from the lower arm.
To ensure free movement of the outer CV joint, the wheel must be moved to the side.
The outer grenade is knocked out of the wheel.
Both grenades are knocked out of the gearbox.

Carefully, to avoid damage, the drive shaft is clamped in a vice. The clamp that the boot holds on the body of the inner CV joint is released. A screwdriver is used for this. The boot is removed

It can be cut if further use of the element is impossible due to breakage. The old CV joint is knocked off the drive shaft using a special guide made of bronze. The CV joint and a new boot are put on the shaft.

The inside of the CV joint is generously lubricated with grease.
It is necessary to ensure that the direction of the drive and the seat of the product coincide.

How to replace the internal CV joint on a VAZ 2109 can be clearly seen in the video.

Drive Shaft Installation

So:

New retaining and thrust rings are installed.
After applying graphite lubricant to the joint splines, the drive shaft is placed in the gearbox housing.

Installation of the drive shaft in the gearbox

Fixing the shaft in the side gear.
Installing the unit into the wheel hub.
Final assembly is performed in the reverse order of disassembly.

On our website you can find a lot of useful and necessary information on this topic.

Where does the repair begin?

First, you need to drive the car onto a viewing hole or overpass, place safety chocks under the wheels and secure the hand brake. After this, unscrew the drain plug on the gearbox housing and drain the oil (a good reason to replace it) into a suitable container.

Removing the wheel and lower support

Before lifting the front of the car, you should remove the wheel bolts, since this will be quite problematic after lifting. Next, using a jack, raise one side or the entire front of the car.

Attention! Do not forget to place a reliable support under the body.

After this, unscrew the bolts and remove the wheel. Now you can begin dismantling the hub. To do this, carefully remove the protective cap with a screwdriver, unscrew the nut and remove the lock washer. To prevent the hub from turning, it is necessary to push the brake pedal all the way down and secure it with a block or get an assistant to do this.

Removing the support is quite simple: using a 17mm wrench, unscrew the two mounting bolts. It is recommended to use a spanner or socket wrench rather than an open-end wrench. Since the bolts can become very rusty during operation, you should use a “Vedashka”. After 5-10 minutes of treatment, they will turn away quite easily.

Determining the malfunction

First of all, when driving, there may be extraneous noise from the front. First you need to make sure that the CV joint boots are not torn and there are no cracks or oily marks on the surface. To check, just turn the steering wheel all the way and carry out a visual inspection behind the wheel.

Found any damage? Change the boot immediately so that stones, small particles, and water do not subsequently get into the CV joint mechanism. Otherwise, the hinge will quickly become unusable.

It is quite easy to determine the need to replace the hinge itself - during turning maneuvers the driver notices characteristic knocking noises. The presence of play during swinging of the drive shaft will help confirm this fact.

How is the CV joint boot of a VAZ-2109 replaced?

Dismantling the internal “grenade”

To remove the shank of the outer “grenade” you need to turn the stand to the left or right. In order to remove the inner CV joint, remove the fixing clamps from the cover and turn it outward. Next, push the shaft inside the box and use a screwdriver to remove the retaining ring from the glass.

Pull the axle shaft out of the box using a pry bar - you don’t need much effort for this. It is not recommended to use a hammer to remove the inner CV joint, as this can seriously damage the unit.

Replacing the boot

Remove the CV joint from the shaft using a hammer and a copper drift, having previously loosened the boot clamps. To prevent the balls of the internal bearing from scattering throughout the garage, they must be removed from the cage and placed in a box. If the boot sits tightly on the shaft, you can simply cut it off.

Before installation, the new cover must be unscrewed and then pulled onto the shaft. Replacement of VAZ-2109 CV joint boots is carried out carefully so as not to damage them during installation.

CV joint assembly

Before assembling the unit, all its parts must be washed in gasoline. Assembly is carried out by securing the axle shaft in a vice. Next, new grease is filled into the bearing. You can purchase it at any spare parts store.

In order for the lubricant to be evenly distributed inside the assembly, during its placement it is necessary to rotate the shaft from time to time. Next, the bearing balls are installed in their places.

How to fix the boot?

Attention! To fasten the anthers, it is not recommended to use clamps that are seriously damaged by corrosion.

The anthers are secured using tape clamps. Experts recommend tightening them as the axle shaft rotates, which will prevent them from spontaneously loosening (although this is a controversial issue). After the clamp is tightened to the end, the tape is bent and the bend is lightly tapped with a hammer. The antennae of the latch are carefully pressed with a screwdriver, and the excess part of the tape is cut off with scissors.

Before installing the second clamp, the boot must be leveled so that there are no dents on it. After which it can be fixed in the same way as described above.

How to install CV joint?

Assembling the components is carried out in the reverse order: the CV joint is inserted into the gearbox until it stops and a retaining ring is installed in the glass. If everything is done correctly, a characteristic click will follow. This means the ring is in its place. The second end is inserted into the hub, the support is installed and the hub nut is tightened (it is advisable to install a new one). Next, install the wheel and tighten the bolts. Don't forget to replace the protective cap. After this, you can remove the stop and lower the jack.

When the car is lowered, you need to tighten the wheel bolts again. The last thing left to do is to pour new oil into the gearbox and the car will be ready for use. That's all the work on replacing the CV joint boot on a VAZ 2109

Since many car enthusiasts prefer to repair their cars themselves, this article will hopefully be very useful for them and will help them carry out this work without outside help.

Preparatory work

Before replacing the CV joint boot or the grenade itself, you need to perform several preparatory steps. Without this, withdrawal is impossible. Please note that you cannot remove both inner joints at the same time - this will lead to destruction of the differential mechanism.

If the bevel gears fall off, you will have to remove the gearbox and completely disassemble it. Preparation includes the following steps:

Complete or partial drainage of oil from the gearbox. When removing the internal CV joints, oil will spill out; to prevent this from happening, it is necessary to drain at least 2/3 of the total volume.
Unlocking the front wheel hub nut (or both, if two drives need to be repaired).
Loosening the hub nut and wheel bolts. The hub must be unscrewed using a 30mm wrench with a large lever.
Removing the wheel after installing the side to be repaired on the jack and support.

Having completed the preparatory work, you can begin directly replacing the VAZ-2109 CV joint.