Removal and replacement of front drives on VAZ 2108, 2109, 21099

Removing and replacing the speedometer drive of a VAZ 2109

We remove the speedometer drive on a VAZ 2109 car to replace the housing, sealing ring or the drive gear itself. Its removal can be done without dismantling the gearbox itself; to do this, the car must be driven onto an inspection hole or overpass. The repair procedure is as follows:

• Using a socket wrench, unscrew one bolt securing the speedometer drive housing to the gearbox and pry it off with a flat-head screwdriver.

• Now you can remove the driven gear itself. This gear is made of plastic, so it must be carefully inspected and if signs of wear are found, replace it with a new one. Also pay attention to the seat where the tip of the speedometer flexible rod is inserted; it should not be broken with licked corners, otherwise this defect is also the reason for replacing the gear.
• Pay attention to the box body where the drive is installed. If traces of oil leaks are noticeable, then it is necessary to replace the rubber sealing ring located on the drive housing. To remove it, you need to remove the driven gear and then push out the O-ring.
• Wash all parts in clean kerosene.

At this point, the repair work on removing and repairing the VAZ 2109 speedometer drive is completed. After washing all the parts, reassemble it in reverse order and install it in place.

Replacing the VAZ 2109 CV joint: is it necessary?

Having decided to replace the CV joint on your car, do not rush to proceed immediately; perhaps only minor repairs are required.

So, first of all, check the drive shaft play by simply shaking it by hand. Next, inspect the CV joint itself - turning the wheels completely to the right or left, look under the car, paying special attention to the boots. If you find cracks, traces of grease, ruptures or other violations of the integrity of the structure on them, be sure to replace the CV joint covers. After all, if this work is not done in a timely manner, it becomes necessary to replace the entire assembly. If in your case such a need has “ripened”, well, prepare the car.

Speedometer drive: types and differences

A speedometer is an important element in cars, as well as several other vehicles, as it is necessary to monitor speed in order not to violate traffic rules. But this is not the last function of this device.

All possible speedometers have a high-speed magnetic unit; due to the rotation of the magnets, a flow is formed, it moves through the coil, thereby facilitating the induction of eddy currents. They thereby begin to create more magnetic fields. They interact with each other, the needle of the device moves along the frequency scale, with the help of this the magnet rotates.

All speedometers are divided into three categories.

• Mechanical speedometers.
• Electromechanical speedometers.
• Electronic speedometers.

Mechanical speedometers. In this type of speedometer, the process of speed measurement and indication occurs thanks to a mechanical device. A gear is used as sensors, which is connected to the secondary shaft of the gearbox; this is the speed unit with an arrow indicator and the drum counter. Previously, speedometers were used in the form of a drum and tape. But they stopped using them quite a long time ago.

Electromechanical speedometers. In these devices, speed is measured using various electronic or electromechanical sensors that are connected to the gearbox. The speed is indicated by a milliammeter or the speed unit of a mechanical speedometer, and the distance is indicated by a counting drum, which drives a stepper motor.

Electronic speedometers. This is a development of new electromechanical speedometers; the main difference is the replacement of the odometer - in an electronic device it is completely digital.

Sequencing.

1. Using a jack, lift the wheel on the side where the CV joint is worn.

2. Unscrew the wheel mounting bolts and remove the hub nut thrust washer.

3. Unscrew a pair of lower ball joint mounting bolts from the steering knuckle.

4. Then turn the steering wheel very strongly towards or away from the direction in which the replacement will take place.

5. Having slightly pulled the steering knuckle with the strut, carefully remove the splined end of the outer CV joint from the hub, and then use a pry bar to push the inner CV joint out (from the gearbox).

6. Secure the drive shaft in a vice and remove the clamps from the CV joints (internal, external). Turn the boot inside out. If there is damage on the latter, then you don’t have to worry about dismantling it and just cut it off with a knife.

7. Now, using a hammer, knock the CV joint off the shaft and install a new one in its place. Then repeat all the previously performed steps in reverse order, not forgetting:

• lubricate the CV joint well before installing it,
• replace the old hub nut with a new one,
• touch the edge of the new hub nut after tightening (to prevent unscrewing),
• install a plastic plug at the end of the shaft.

That's the entire replacement procedure. As you can see, nothing complicated.

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How to remove the speedometer drive with your own hands - instructions

VAZ 2110

1. We support the anti-rollback shoes of the rear wheel, then we need to jack up the front of the car, and then install it on supports.
2. On a model with a cable-driven speedometer, remove the fastening pin and disconnect the cable from the gear drive.
3. Unscrew the fastening bolt and remove it together with the heat shield.
4. Remove the drive with the gear from the crankcase and remove it from the seal ring.
5. The gear can be removed from the gearbox housing; be sure to check the condition of the gear; if defects are detected, it must be replaced.
6. If there are signs of wear or damage to the gear, the condition of the gear should be checked.
7. To remove the gear, release it from the transmission. Then you need to unscrew the mounting bolt and remove the drive gear housing. Then you should remove the drive gear and remove all the adjusting washers.

VAZ 2107

1. Using a “13” wrench, you need to unscrew the bolt of the clamp securing the exhaust pipe of the muffler.
2. Take a 10mm wrench and unscrew the drive fastening nut.
3. Using a 13mm wrench, unscrew the two nuts securing the cross member.
4. Then you need to lower the rear of the transmission.
5. The pipe section must be moved to the right and then the speedometer drive must be removed from the crankcase hole.

VAZ 2114

1. We unscrew the DS counterclockwise.
2. After removing the DS, check the VAZ 2114 speed sensor drive.

1. Using a “10” wrench, unscrew the nut and pull it out.
2. After removing the drive, you need to check the condition of the ring and, if necessary, replace it.

Replacing CV joints: practical recommendations

On the advice of specialists, the CV joint should be completely replaced. An exception may be anthers or other small elements of this type. In addition to lubrication, all the clamps in the CV joint must also be replaced with new ones, and during assembly, monitor the cleanliness of the work to prevent dirt particles from getting into the hinges.

To install the CV joint in place, it is better to use a hammer and a wooden spacer, watching your movements so that they are not strong and not sharp. Those. Simply place the spacer and tap it until the part snaps into place. If you neglect this and hit the part itself, you will simply damage it.

Once the hinge is in place, its boot is installed. First of all, the clamp is clamped onto the shaft using pliers. In this case, you will need to equalize the pressure in the part; to do this, just use a screwdriver to pick up the edge of the boot and unscrew it. After this, the clamp is clamped from the outside. The plastic plug must be installed at the end of the shaft, not forgetting about it. The remaining steps are performed in the reverse order in the same way as the CV joints were removed before.

Replacing the outer CV joint of a VAZ 2109 may seem complicated and time-consuming, so you can always turn to professionals for help. They encounter such a replacement quite often, so it won’t be too difficult for them.

Do-it-yourself repair of the VAZ 2109 speedometer drive

The speedometer of this car model is equipped with a mechanical drive. The installation of gears, including the drive gear, is carried out on the secondary shaft of the box. The transmission of torque to the speedometer, which is located on the dashboard, is provided by a flexible shaft.

One of the features of the car model is that the equipment can have either a high or low dashboard, which in turn means that when purchasing a flexible shaft, you need to make sure that its length is suitable for your car.

The process of replacing a CV joint on a VAZ 2109

Often, owners of domestic cars are faced with the need to replace the CV joint on a VAZ 2109, since the safety of those in the cabin directly depends on its functioning.
CV joint is an abbreviation that stands for constant velocity joint. The part must be replaced if there is any suspicion of a malfunction. For example, while driving a car you can hear noise from the front wheel drive. In this case, the first thing to check is the CV joint boots, which may be torn, have cracks or traces of grease. To check, just turn the steering wheel all the way in any direction and look behind the wheel.

If damage is found, it is necessary to change the dust cover so that grains of sand, water, stones and the like do not get into the CV joint, which will certainly render the joint unusable. Also, when the car turns into turns, a characteristic tapping sound may appear, which indicates a malfunction of the hinges themselves. To verify the need to replace them, check for the presence of play, which will require rocking the drive shaft.

How to check the speedometer shaft?

Usually, to check the functionality of the shaft, it is enough to drive a couple of tens of meters. Start the engine and drive 20–30 meters and observe the behavior of the end of the shaft. If the tip is motionless, you need to lift the hood cover, unscrew the nut that secures the shaft. If only the shell of the part gives in, then this will indicate only one thing - a shaft break has occurred. In this case, you will have to remove the remaining tip from the drive. For this job you will need pliers.

Another development of events is also possible if both the shaft and the shell fail, and this will indicate that there are simply no edges at the tip of the shaft. Regardless of the reason for the shaft failure, it will have to be replaced.

Often the need to change the drive arises due to wear of paired gears. In order to solve this problem, you do not have to remove the gearbox. To solve the problem, it is enough to have an inspection hole or overpass.

The first step is to unscrew the bolt that secures the drive housing to the gearbox. After this, the housing is removed, then the gears. The latter must be replaced. In order to choose the gears that are suitable for your car, just compare the new ones with the old ones, the number of teeth should be the same.

If there is oil on the housing, it would be a good idea to check the O-ring and replace it if necessary. The drive elements are washed using clean kerosene.

The order of assembling the unit is reverse.

How to remove the inner CV joint

In essence, you do exactly the same as in the previous case. Apply several sharp blows with a hammer, only now on the inner CV joint. Attaching the axle shaft to the hinge is exactly the same, but follow the basic requirement - try not to damage it if you plan to put it back. Quite rarely, this element fails, so replacing the internal CV joint of the VAZ-2109 is done infrequently. Much more often, new boots are installed, but this will be discussed below.

How to recognize a faulty speedometer?

• The speed is displayed incorrectly;
• The numbers stop crooked;
• The sensor has burned out.

The main condition for success is the correct dismantling of the front panel. Let's consider the sequence of work. A pair of screws are unscrewed, which serve to fix the bottom panel, and the “beard” is removed. The top panel is released from the clamps, and the emergency lights are turned off. This applies to side lights, low beam, and cigarette lighter. Next comes dismantling the pads and removing the panel itself. There is now free access to the screws securing the speedometer.

Thank you for your attention, I hope the article was useful for you, see you again at VAZ Repair.

Repair tool

To independently remove CV joints on a nine or any other car, you need to have the following tool on hand:

1. A socket wrench for “30” or a socket with a strong wrench.
2. Hammer and chisel.
3. Balloon wrench.
4. Set of spanners and sockets.
5. Penetrating lubricant such as WD-40.
6. Capacity of at least 5 liters.
7. Marker or metal scriber.
8. Jack, support and wheel chocks.

VAZ 21099 - removing the speedometer drive mechanism

Removal and subsequent replacement of the speedometer drive mechanism on a VAZ 21099 car can be performed without dismantling the gearbox. To carry out repair work, prepare a set of keys and a new drive, then perform the following sequence of actions:

• First of all, clean the drive surface from dirt, then disconnect the flexible speedometer cable from it.
• Using a socket head, unscrew the nut securing the drive housing to the gearbox, then pry it off with a flat screwdriver and carefully remove it.

• Disconnect the driven gear and shaft from the drive.
• Next, use a suitable rod to push the rubber O-ring out of the body.

Now that disassembly has been completed, wipe all parts with a rag soaked in kerosene or gasoline, and then conduct a visual inspection of all elements for mechanical damage. Pay special attention to the gear with the shaft, since it is made of plastic, the shaft itself is most often subject to damage, so that its edges are not licked off. Replace all rubber seals if they have lost elasticity or become dry.

At this point, the repair work to remove the speedometer drive mechanism on the VAZ 21099 car has been completed. After repairs are completed, perform installation in reverse order.

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Replacement of the VAZ-2109 CV joint. Replacement of external and internal CV joints of VAZ-2109

The VAZ-2109 CV joint is replaced if it is damaged. Excessive wear is noticeable by the fact that an extraneous crunching sound appears when making turns. If the hinges are completely worn out, then even with straight-line movement the sound will remain. To prevent damage, it is worth monitoring the condition of the anthers. They are made of rubber, but are constantly exposed to dirt, water, dust, and therefore can break down within a couple of years. Cracks appear on them, through which dust particles penetrate onto the inner surface of the hinges.

Removing and installing CV joints (grenades) VAZ 2108, VAZ 2109, VAZ 21099, Lada Samara

If, during operation, when the vehicle turns, knocking noises are heard in the wheel drive of a VAZ 2108, VAZ 2109, or VAZ 21099, check the CV joints. Rock the drive shaft by hand. If there is play or the dirt covers are torn, the CV joint must be replaced. There is practically no point in disassembling the hinge: if the cover is torn, the dirt that has got into the hinge has already rendered the CV joint parts unusable. Hinge parts cannot be replaced individually.

Remove the inner clamp of the inner CV joint of the Lada Samara.

Remove the outer clamp of the inner CV joint.

Slide the dirt boot over the shaft and turn it inside out.

Using a drift, knock the inner CV joint off the shaft, applying force to the joint cage.

Remove the outer joint outer clamp.

Remove the inner clamp of the outer hinge.

Slide the dirt boot over the shaft and turn it inside out.

Using a drift, knock the outer CV joint of the VAZ 21099 off the shaft, applying force to the joint cage.

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:

1. Install a new retaining ring.
2. 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.
3. 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.
4. 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 the drive

In order to remove the drive assembly, you need to perform the following steps:

1. Completely unscrew the nut on the outer joint to free the hub.
2. Remove the nuts from the bolts that secure the strut to the hub steering knuckle. This will allow you to move the hub to free the joint. But it will be much more efficient not to unscrew the nuts on the strut, but to disconnect the ball joint.
3. If you unscrewed the ball joint, you need to remove the tie rod end pin from the hole in the strut knuckle. This is done using a special puller.
4. Now you need to pull the outer joint out of the hole in the hub. How to do this depends on the situation. You can use a thin drift, but without fanaticism, so as not to damage the mechanisms. You should also not hit the CV joint axle with a hammer - this will cause the edges to flatten and make it impossible to remove the element.
5. After you pull out the outer joint, you can proceed to the inner one - to remove it from the hole in the gearbox, just apply a few light blows with a small chisel. You can also use a mounting spatula.

That's all, now the drive has been completely removed, you also need to learn how to remove the CV joint on a VAZ-2109.

When the front wheel drive is removed, under no circumstances should you lean on the front suspension (install the vehicle on the front wheels and turn it). This will cause damage to the wheel bearings. Removal Procedure: 1. Brake the vehicle with the parking brake and place thrust blocks under the rear wheels. 2. Using a screwdriver, use a screwdriver and remove the protective cap of the hub nut. 3. Unscrew the hub nut, loosening it in advance.