How to replace the outer CV joint boot on VAZ cars


In order for the VAZ-2110 car to work properly and not fail when driving, it is necessary to constantly monitor its serviceability; replacement of parts that have become unusable must be carried out in a timely manner.

If during the next inspection it is noticed that the CV joint boot has become unusable, the element should be replaced as quickly as possible. If you do not have automotive repair skills and do not have the necessary tools, then it is best to take the VAZ-2110 to a service station, where specialists will take care of this procedure. But if you still have experience, then the replacement can be carried out independently, especially since it will not take much time to remove the worn inner CV joint boot. The most important thing is to carry out the work in stages, taking into account the recommendations of professionals.

Reasons for replacing the boot

The service life of CV joints can be reduced very quickly due to damaged boots. Dirt and dust that gets inside the “grenade” act as an abrasive.

And since the hinge elements are heavily loaded and are constantly in contact with each other, the trapped dirt very quickly damages them and the “grenade” fails.

Even if you do not check the condition of the boot, the hinge itself will signal that it is damaged.

For example, as shown in the photo below, the CV joint turned.

When making turns, the CV joint with dirt trapped in it will begin to crack loudly. If the damage is not quickly repaired, the “grenade” will soon simply disintegrate and will have to be completely replaced.

But replacing a CV joint will cost much more than a boot. Therefore, upon discovering damage to the boot, or hearing a cracking sound from the CV joint, it is better to immediately begin troubleshooting the problem.

And such a malfunction is eliminated by replacing the boot, washing the CV joint and adding new lubricant to it.

Next, we will consider the sequence of actions for replacing the external CV joint boot of front-wheel drive VAZs using model 2199 as an example.

Similar work is carried out on the VAZ 2110, 2114 models, so we hope that the owners of these cars will not have any problems after reading the article.

We choose the outer boot because it is damaged much more often than the inner one, since it is located near the wheel hub and the impact on it is more intense, therefore the chance of a crack appearing on it is greater.

Kinds

In a VAZ 2110 car, the CV joint may need to be replaced. But which one exactly? After all, in the “ten” there are two of them - internal and external. They are necessary in order to effectively overcome all obstacles. Here one CV joint will clearly not be enough.

Internal and external

  1. The first grenade is internal, and it transmits torque to the shaft from the transmission.
  2. The second grenade is external and engages with the car's wheel hub.

Despite the fact that their operating principle is the same, they differ in design and price.

Preparation

So, damage to the boot on the VAZ 2199 has been identified. You can replace it and wash the CV joint itself in the garage, the main thing is that there is an inspection hole.

Tools you will need:

  • Set of wrenches (socket wrenches, open-end wrenches);
  • Set of heads and collars;
  • Metal brush;
  • WD-40;
  • Mount;
  • Hammer;
  • Jack;
  • Wheel chocks;
  • Wooden coasters.

You will also need a new boot, CV joint grease-4, a container for collecting oil, a container with gasoline for washing the CV joint, and rags.

It is better to do all work together with an assistant.

For convenience, we will describe the process of replacing the external boot on the left side. The replacement work on the right side is identical.

Diagnosis of a malfunction of the inner CV joint boot of a VAZ 2110

The grenade ( inner CV joint of the VAZ 2110 ) has protection in the form of a rubber boot. It is mounted on an external and internal hinge. The boot prevents dirt from getting into the CV joint. Another of its functions is to retain lubricant; without it, the hinge will not work.


Boot of the internal CV joint VAZ 2110

If the boot wears out over time or is torn, sand, small stones and dirt will begin to get into the joint. After some time, the CV joint will become unusable and the grenade will have to be replaced. Such repairs will cost much more. Therefore, it is important to monitor the integrity of the anther. If a defect is detected, replace the CV joint boot.

You can visually check the condition of the anthers yourself, without resorting to the services of service station workers. It is best to drive your car into the inspection hole. First of all, you should pay attention to the boot of the outer CV joint. The VAZ 2110 has two boots on each outer side of the wheels. These anthers most often fail. The inner boot needs to be replaced much less frequently than the outer boot.

You can check the integrity of the outer CV joint boot without a hole. We stop the VAZ 2110 on the road, preferably in a place where the car will not interfere with the movement of either cars or pedestrians. We turn the steering wheel to the right to the extreme position, this will be enough to diagnose the outer boot on the left side.

We similarly inspect the boot from the opposite side. If traces of grease are visible on the boot or there are cracks and cuts, then the boot should be replaced. The design of the VAZ 2110 allows you to cope with the replacement yourself.

Following the recommendations of experienced craftsmen, you should replace the boots of both the outer and inner CV joints at the same time. Even if the inner CV boot still looks intact and without cracks.

Disassembling the drive and replacing the boot

Sequence of work.

The car is driven into a pit, chocks are placed under the wheels, and the car itself is left in first gear.

Before completely removing the wheel, loosen all the wheel nuts.

The protective cap of the nut securing the drive to the hub is also removed.

To prevent the nut from unscrewing from the shaft, it is centered around the circumference, which is why it has bends that fit into a groove made in the shaft.

These bends need to be aligned, this is done with a thin screwdriver or a drift and a hammer.

After aligning the bends, using a socket and a powerful wrench, the nut is unscrewed, and the washer located under it is also removed.

Next, the car is jacked up and wooden stands are placed under its sills.

The wheel nuts are unscrewed and the wheel is removed.

Next, work is done under the car.

If there is a crankcase protection, it can be unscrewed. Then the oil from the gearbox is drained through the drain plug into the prepared container.

Next, you need to unscrew the two bolts securing the lower ball joint to the hub.

This will make it possible for the latter to move sideways. At the same time, you can check the condition of the support itself.

The steering wheel must be turned all the way to the left so that the drive is completely shifted in the inner CV joint, ensuring its minimum length.

After this, the hub is removed from the splines of the drive shaft.

The outside of the drive will be removed.

Then you can go in two ways.

The first way.

Knock down the outer “grenade” without removing the inner CV joint.

To do this, you need to remove the boot clamps, and then cut the boot, and then wipe off the existing grease on the hinge.

Then you need to prevent the drive from moving on the internal hinge.

To do this, take a small vice or a butt wrench, clamp the shaft in them and hold it firmly in your hands.

An assistant, using a soft metal spacer and a hammer, knocks down the CV joint, striking the inner race of the hinge.

With this method, there is no need to drain the oil from the box. But there is a possibility that when striking, the inner race will jump out of the outer inner CV joint.

Also, shooting down a “grenade” in this way is not very convenient, since this work will be done in a limited space.

Second way.

Complete removal of the drive from the vehicle. To do this, a pry bar is driven between the gearbox housing and the internal joint and the shaft entering the gearbox is pulled back and forth.

After this, the drive is completely removed.

IMPORTANT: With this method, the oil must be drained.

The advantage of this method is also the ability to assess the condition and replace the gearbox seal, through which oil often leaks.

In the future we will consider work with the drive completely removed.

"Grenade" defects

Before replacing CV joints on a VAZ 2110, you need to make sure that they are made with high quality and can effectively perform their job in a new place.

Alas, sometimes replacing the inner CV joint on a VAZ 2110 does not give the expected result, since product defects .

Defects may be as follows:

  • Low quality of alloys used in manufacturing;
  • Banal fakes and defective components;
  • Poor quality or complete lack of lubricant, which leads to rapid failure of even a new grenade;
  • Damaged anthers, due to which all kinds of debris get into the grenade.

Regarding the replacement of CV joint boots on a VAZ 2110, we recommend watching a video that will help you cope with the problem that has arisen. This issue should be approached thoroughly.

Replacement of failed equipment

Replacing the CV joint of a VAZ 2110 vehicle, located on the inside rather than the outside, is a simple process; several operations will be required. The design transmits rotation from the gearbox to the shaft. The operation of the device affects traffic safety; for this reason, detection of a CV joint failure is carried out at a high level from the ground.

The replacement operation is performed on a special lift, an inspection hole, which is due to its location in the lower part of the vehicle; access is needed only in this position.

Assembly nuances

Before reassembling, we also recommend watching a video about replacing the inner CV joint on a VAZ 2110. Plus, follow a few tips.

  1. A plastic plug must be installed at the end of the shaft.
  2. Before installing a new CV joint, the element must be lubricated with special compounds.
  3. You need to install the retaining ring before installing the new unit - the grenade.
  4. Having installed the drive, it is mounted on the gear, achieving complete fixation. At this point you will need to use a hammer.

The best solution would be to find a good service station, where real professionals work. Trust them to replace grenades to guarantee high quality repairs and efficient operation of the entire chassis of your car.

Well, if this is not the first time you are repairing your “ten”, then such a procedure as replacing a CV joint will become an easily feasible task for you. Just remember to follow the recommendations from the instruction manual for your VAZ 2110.

The transmission of torque from the engine to the wheels is carried out through drive shafts and constant velocity joints, abbreviated as CV joints. The VAZ 2110, like many cars, has front-wheel drive. Drive shafts go from the engine to the wheels. CV joints are attached to the shaft on both sides. The inner CV joint comes out from the box side, and the outer CV joint comes out from the wheel side. Among car enthusiasts, these hinges are called “grenades” due to their external similarity.

Constant velocity joint or CV joint

VAZ 2110 grenade boot

The design of the car provides that the hinge is subject to a significant load and is made of very strong alloys. A well-maintained and good CV joint (grenade) can last longer than the car itself. To achieve this result and save money, because the procedure for replacing a hinge is expensive, you must follow some rules. One of these rules is to systematically check the condition and timely replacement of the grenade boot. The most important enemies of a car grenade are dirt, dust, water and sand that enter the working part while driving. To protect against such destructive factors, anthers are installed, which are protective rubber cones that very tightly cover the CV joint mechanism of the vase. If you find that the grenade boot is torn, it must be replaced immediately. During periodic technical inspections, you need to carefully inspect the boots and replace them if necessary.

Note. If folds, cracks, deterioration in the elasticity of the rubber and other deformations and damage are found on the anthers, replacement should not be shelved.

Functionality check

of the inner and outer CV joints should be examined separately , since the procedures and signs are somewhat different.

External grenade

Grenade

If you want to verify that the outer CV joint is faulty, do the following:

  • When starting from a standstill, deliberately create jerks, but not strong ones;
  • Try to accelerate sharply and slow down;
  • Move the shaft transversely between the CV joints. If you feel any play, then the grenade is definitely worn out.

Internal grenade

But to understand whether an element really needs to be replaced, do this:

  • Raise the drive wheels, which will allow you to bring the inner CV joint to its maximum angle;
  • Start the engine;
  • Turn on first speed;
  • If the hinge is at the limit of wear, you will hear a characteristic crunch. This is a signal that you need to change the grenade.
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