When the car is moving, the noise that occurs in the grenade can be an indication of its damage. At the slightest presence of non-standard noises in this mechanism, the internal grenade must be replaced on the VAZ 2110.
So, with the first option for replacing the internal grenade of a VAZ model 2110 car, you must perform the following actions:
Note: This job is easily done using a flat head screwdriver.
Note: it must be installed carefully. One edge of it is inserted into the recess, and the other edge is mounted into the groove.
VIDEO
Vaz 2110 internal grenade
The process of replacing the internal grenade of a VAZ 2110 car is over here. The drive is mounted in the gearbox.
Note. There are two options for grenades on the aftermarket. The first has a ball base, the second is called a three-bearing.
Vaz 2110 internal grenade
The cost of grenades can vary according to various parameters. You should pay attention to products that are sold in specialized stores.
SHRUS (Joint of equal angular velocities, or simply - "grenade" in common people) - a device that provides the transmission of torque, with an angle of rotation of about 70 degrees in relation to the axis. CV joints are used in passenger cars, more precisely in drive systems with controlled wheels, as a rule, paired with an independent suspension, sometimes found on the rear wheels.
What if the CV joint crunched, and what does it mean?
As a rule, the CV joint has a fairly large margin of safety, sometimes its resource exceeds the resource of the vehicle itself. Often, premature failure of this mechanism is associated with a rupture of the protective cover, as a result of which dust mixed with sand and moisture falls on the rotating parts of the hinge. Because of this, increased wear of all parts begins in the CV joint. It also happens that the boot is intact, and the crackle is very strong. This may indicate obvious problems that are caused by the aging of the lubricant inside the mechanism. Sometimes when buying a foreign car with "decent" mileage (from 250 thousand km), owners interested in selling stuff the CV joints with pieces of rags or paper mixed with grease. All this "vinigrette" will make itself known in 2-3 thousand km. If we ignore the crunch of the CV joint, then over time it will intensify, as a result of which the wear will increase and the CV joint will simply need to be replaced with a new one, since parts with a large "production" cannot be restored.
In order, as they say, to get to this ingenious mechanism, you should dismantle the half-shaft, release the boot clamps a little, and then pull it out towards the half-shaft. In order to remove the CV joint from the axle shaft, you will need a hammer, but without fanaticism, please. And also a drift made of soft material (aluminum, copper, or wood). The CV joint is a rather complicated product, despite the fact that it consists of only four elements: a fist, balls, a separator and a body.
SHRUS repair. Dismantling and replacement
First of all, you need to make marks of the general location of the outer, as well as the inner, cage, for this you need to get a core or scribe, you can do something more modern - a marker or paint.
1. Clamp the hinge in a vice, then turn the inner part of the cage until it stops, then remove the balls in pairs. Help yourself with a screwdriver, tap with a hammer.
2. Once all the balls have been removed, place the cage in a vertical position so that its elongated windows can intersect with the end of the body.
3. Then remove the fist with the separator. Rotate the fist, while sinking one of the protrusions located in the separator window, then separate these parts.
4. Inspect the parts after rinsing and drying. If there are no chips and wear at the joints, as well as obvious seizures and discoloration, the device will still serve. If any of the above defects is found on the parts, they must be replaced with new ones.
Assembling the mechanism, of course, should be done in the reverse order, however, before proceeding to this stage, everything must be properly lubricated. The inner cage with the separator should be inserted into the outer one, remember also about the marks that were put at the beginning. Place the balls in pairs, as when disassembling. Fill the hinge with SHRUS-4 grease in a ratio of 80-100 g per hinge. As an alternative, "lithol" is suitable, as well as other grease lubricants. Do not try to save money, because you are trying for yourself. The performance of the CV joint largely depends on how much lubricant it contains. It will not be superfluous to put 40-50 grams directly into the case. When assembling the CV joint, knock out the hinge along the slots and put on the boot, then tighten the clamp. The job of the boot is to ensure a good seal on the hinge. When lubricating the parts, rotate the CV joint to distribute the lubricant evenly inside. Make sure once again that it is assembled correctly - there should be no biting or strong resistance during rotation.
The CV joint is one of the most important parts of the chassis of the car. Traffic safety depends on its condition, therefore, timely detection of malfunctions and replacement of parts is the main task of any motorist.
A car is a complex technical organism that consists of many important units, interconnected functional parts and elements. Each individual element has its own functional purpose and limited service life. The task of every motorist is the timely replacement of some parts or components, which gives maximum safety while driving. This approach should be applied to almost all vehicle components, including suspension components.
The CV joint or grenade has a limited service life, so it needs to be changed from time to time. The design features of each car differ only in some moments, therefore, if you freely independently coped with this operation on one of them, you can also easily cope with the other.
How can you tell if the CV joint on your suspension has become unusable? In principle, even the most inexperienced can determine this, since the grenade announces its malfunction to the whole world with a terrible crash when cornering or a crisp-rolling trill even with a small turn of the steering wheel.
The reasons for the failure of the grenade are commonplace. This may be the usual damage to the CV joint boot, after which dust and dirt in the separator of the device gradually leads to wear of the balls and the separator itself. And also the reason for the failure may be the poor quality of the device or the expired service life.Non-standard reasons include the breakage of the retaining ring, due to which a partial exit of the axial shaft from the separator during a sharp turn is carried out, the separator bites and over time, damage is formed that is incompatible with the further life of the grenade and the safety of movement.
VIDEO
To replace a faulty CV joint with a new one, you need sockets for 30, 17 and 13, a wrench (17), a mounting blade, a balloon holder and a knob with a handle of a decent length.
To begin with, we prepare the car by using the parking brake, we also put clamps under the rear wheels, then remove the cap that protects the hub nut with a regular screwdriver, and unscrew it slightly.
Then we lift the side of the car of interest to us on a jack or lift and unscrew the wheel. We take out the thrust washer of the hub.
The next step is to unscrew the bolts securing the lower ball joint. With the help of the knob, we move the knuckle back and remove the ball finger. We pull back the steering knuckle together with the rack and remove the splined part of the outer grenade.
The next step is to remove the clamps from the outer CV joint, for this it is necessary to clamp the drive shaft in a table yew. We unscrew the boot from the faulty drive, or simply cut it off. The CV joint itself must be knocked off the shaft using a punch. This event can require a decent amount of effort, since the grenade is held on the shaft by a retaining ring. But since it is faulty, you can not regret the retaining ring, another is included with the new part.
When installing new CV joints and boot, do not forget about lubrication. For this, a graphite-based lubricant is usually used; it quite often comes in one set with the part. If not, then you should buy it separately.
First, we wipe the shaft from the old grease, put on a new boot and grease it abundantly. It is also not worth overdoing it, since its excess is the reason for the loss of elasticity of the material from which the boot is made. After installing it, we put new rings on the shaft in the same sequence in which they were removed.
Next, we take a new grenade, fill it abundantly with grease, here you can not regret it at all. We substitute it against the spline side of the shaft and push it with a wooden hammer. We tighten with clamps, and install the drive in place in the reverse order, tighten the hub, insert the ball pin into place and tighten all the bolts and nuts.
In principle, the whole procedure for replacing a grenade takes no more than 30-45 minutes, and is quite accessible for every motorist, regardless of experience.
VIDEO
Let's show you how to replace a grenade (CV joint) in a Lada Granta car with your own hands. The grenade traveled only 15 thousand km in this car. and crackled. First of all, we rip off the hub nut, for this we remove the protective cap (boot), we see that the nut is locked. Immediately after that, we rip off the wheel bolts, raise the car and remove the wheel. Now we unscrew the ball, you can knock it down, but it will be easier to unscrew the two side bolts. We remove the CV joint from the hub, sometimes it comes out easily with the help of the force of the hands, it happens that you need to knock a little with a hammer. We turn the steering wheel all the way to the left so that there is easy access to the grenade. We remove the clamps from the CV joint, the boot. Then be careful, when knocking down a grenade, you can pull the drive out of the box, and oil will leak out of the box. In our case, the grenade is removed with the help of a home-made device, such as a reverse hammer, if desired, you can use only a hammer, knocking with a sharp end on the separator, but this is not very convenient.
Video of replacing grenades in Lada Granta:
Backup video of the CV joint replacement in Lada Granta:
VIDEO
Schematic representation of the CV joints of the front wheels
The different device of the external and internal "grenades" ("popular" name for CV joints) is due to slightly different modes of operation of the hinges.If for the outer SHRUS connected to the hub, the main task is to transmit torque at any possible angles of rotation / tilt of the wheel, then for the inner one it is more important to compensate for the misalignment of the transmission and the drive shaft (partially unloading the outer SHRUS), and also to ensure the "continuity" of the shaft with long travels of the suspension. That is, the inner CV joint must allow the drive shaft to "lengthen" or "shorten".
The different design of the outer and inner CV joints is due to slightly different modes of operation of the hinges.
The figure above shows the VAZ drive. Its design is the simplest and, one might say, elegant - a minimum of parts with high reliability and ease of dismantling and repairing hinges. On the left side of the figure is an inner CV joint. As you can see, the body of the inner "grenade" is larger than the outer one. This is what allows the inner casing of the CV joint to move along with the shaft and balls inside the body along the "tracks". But the hinge is also capable of turning at an angle - less than the outer one.
The location of the inner CV joints
The most characteristic symptom of a malfunctioning internal CV joint is the characteristic crunch that accompanies the operation of the joint. But the “dying” outer CV joint produces exactly the same sound, so it is sometimes difficult to find the “culprit”.
Sometimes it happens that the wear of parts of the inner CV joint leads to vibration felt by the driver when driving on a flat road.
Inner CV joint boot
First of all, you need to monitor the condition of the CV joints rubber covers. The manufacturer generally, as a rule, prescribes to change the hinges themselves if their covers are damaged.
The manufacturer, as a rule, prescribes to replace the hinges themselves if their covers are damaged.
You also need to pay attention to how tightly fastened the clamps on the covers. A properly tightened clamp prevents the boot from rotating on the hinge housing.
VIDEO
VAZ 2109 is a front-wheel drive car, therefore, the front suspension, in addition to its main functions, has another important task, namely: ensuring the transmission of torque to the drive wheels. To do this, it is equipped with constant velocity joints (CV joints), which allow the drive wheels to rotate, turn and move vertically on a spring. The name "grenade" in the people of the CV joint received due to its shape.
An experienced driver can determine the location of a vehicle malfunction by ear. This quality comes over the years. However, the crunch of a grenade is very difficult to confuse with another sound. Let's see what constitutes a CV joint. Outside, it is made in the form of a bowl, and on the inside, the body has semicircular grooves. There are six of them.
In the inner space there is a spherical fist (clip) with 6 grooves and a splined connection for the axle shaft. Rotation takes place through the force that the cage transfers to the body through the balls in the separator. The balls, moving along the furrows, change the angle between the semiaxes.
VIDEO low-quality or defective products, including counterfeit ones, have been installed;
low-quality lubricants are used or they are absent;
damage to the anther;
driving on bad roads or aggressive driving style.
Each part has its own resource of development. And over time, there is a backlash in the hinges. The rolling of the balls, which is already more free, produces a sound reminiscent of a crunch. It can appear when turning, sharp acceleration, overcoming obstacles.
2 grenades (internal and external) are installed on the drive wheels: the first transmits rotation from the box, the second - from the axle shaft to the wheel hub. Therefore, in the event of an extraneous sound, it is necessary to determine which SHRUS makes a sound (located on the left or right, inside or outside).
The design of these grenades is the same, they differ only in size (the outer one is smaller). The outer CV joints wear more intensively because the loads and cornering angles are greater. Knowing the design and the difference between the grenades, which, how quickly and why they wear out, the car owner will more closely monitor the condition of the CV joints.
Grenade device: 1 - body with an outer clip; 2 - separator; 3 - inner cage; 4 - balls (6 pcs.); 5 - drive shaft; 6 - retaining ring; 7 - corrugated cover; 8 - cover clamps
How can you tell which grenade is damaged and needs to be replaced? There are several ways to diagnose.
First, let's try to define the crunch of an external grenade. The car is stationary. Alternately, at the hinges, we pull the axle and listen. There is a knock, which means there is a backlash in the CV joint, which indicates that the grenade is damaged.
Now let the car drive on level ground. To establish, what grenade crunches, how to act, to the end you need to turn the steering wheel to the right, then do the same to the left. There was a crunch when you turned to the right, which means that the right outer grenade is faulty, a crunch when you turn left is the left outer grenade.
In the event of a malfunction of the internal grenade, the question arises: which one, how to determine the breakdown? To do this, we select a road surface with bumps, pits so that the wheel goes down as low as possible, and we drive the car straight. We listen to the sounds, alternately driving either the left or the right front wheel into the pit, and by ear we determine which grenade is crunching.
Raise the vehicle on a lift. Engage first gear so that the wheels can rotate while suspended. If the grenade malfunctions, you will hear a hinge crunch.
We learned what, how and in what place the grenade “clicks”. It remains to start replacing the damaged CV joint. This can be done in a car workshop or you can carry out repairs yourself, if you have the appropriate experience. There are three basic rules under which the car drive lasts a long time.
Give up the jump start.
Do not accelerate when turning the steering wheel.
Inspect the anthers periodically.
The CV joint wears out quickly under heavy loads and dirt. Take care of your car.
VIDEO
Internal CV joint VAZ 2110 or constant velocity hinge , or in the popular way "grenade", is an integral part of the transmission of a front-wheel drive car.
The CV joint performs an important function in the car, it consists of seven parts:
Retaining ring.
Balloons.
Separator.
The boot, which is listed in the technical manual as a pleated boot.
Frame.
Drive shaft.
Inner clip.
The VAZ 2110 drive unit is responsible for transferring torque to the wheel from the gearbox. CV joint allows the front wheelset to make turns by normalizing the changing angle between the axle shafts. There are two grenades in the machine: the outer one transfers rotation to the hub, and the inner one is needed to transfer rotation from the gearbox to the shaft.
Internal CV joint diagram VAZ 2110
It is easiest to see it from the bottom of the car, by the way, you will have to remove it by crawling under the bottom, although you can do without it (For example, you can put the planks under the front wheels and lift the front part with two jacks, provided that both jacks stand on these planks, thereby in front of will be higher, it is especially convenient if the car is tall), but still it is better to drive the car onto a lift and replace the CV joint you need with a new one there, but we will immediately explain to you what the external and internal CV joints mean, so that you understand this and no longer get confused (It's just that in the article we will often talk about them and so that it immediately dawns on you which SHRUS we are talking about), and so the outer one is the one that faces the car wheel and is inserted into the hub (Both outer ones are indicated by green arrows), and the inner one is the one that is inserted into the box (They are indicated by yellow arrows) and there are four CV joints in the front-drive cars, two of them are located on the left side and go to the left wheel, and the others There are two on the right and go to the right wheel, but there are only two drives on which the CV joints are installed, and both of them are indicated in the photo with blue arrows.
The location of the inner and outer CV joints of the VAZ 2110 is indicated by arrows
The main enemies of any hinge mechanisms are dust and dirt, which play the role of an abrasive and accelerate the wear of the grenade. Should the car owner miss the damage to the elastic cover and drive for a while without replacing it, the very dirt gets inside, which sooner or later will do its job, even if you change the boot.
There are other reasons leading to malfunction and replacement of elements:
there is not enough lubrication in the mechanism or its quality leaves much to be desired;
too aggressive driving on bad roads, constantly creating extreme loads on the CV joints;
factory defect in the details of the assembly.
If during the operation of the VAZ 2110 car the following signs of a malfunction appear, then additional diagnostics must be carried out:
while cornering, a characteristic crisp sound is heard from the front of the car, as if steel balls touch the body during operation;
the same, only a knock is heard instead of a crunch, it can disappear with a straight motion;
a constant crunch that does not disappear when driving in a straight line indicates wear on the inner grenade.
To make sure that a grenade is broken, you can check it in 2 ways:
Choose a level area with enough room for the Niva to turn. Make several circles behind and counterclockwise along it, turning the steering wheel all the way. Listen carefully to the sounds that arise. If they sound like a crunch, skip to part 2 of the diagnosis.
Place the machine above the inspection pit and check for play in all 4 nodes manually by swinging and turning the axle shaft in different directions. A worn hinge will immediately make itself felt.
If at the same time it was found that the boot is damaged or water is leaking out of it, then the CV joint in this place has probably become unusable.
Now let's talk in more detail about the backlash in the ball joints. The backlash resulting from the wear of the support will negatively affect the state of the CV joint. And if, when driving at speed, the ball bearing pin pulls out of the mount, the inner CV joint may be broken altogether. By the way, all the main blows of fate are taken on by external grenades. And this is due to the fact that they are connected through the hub to the wheel. It is from the wheel that the constant velocity joint receives powerful shocks and concussions. And water with mud under the wheels gets faster and more on the outer CV joints. Therefore, in order to damage the CV JOINT that connects to the box, you need to try. An exception is the situation when the ball joint pin is pulled out.
Before starting work on the independent replacement of the internal CV joint of the Vaz 2110, everything must be prepared.
To do this, you need to fix the car, turn on the 4th speed, tighten the handbrake. Secure rear wheels with wheel chocks. If they are not there, use bars of a similar shape. Remove the protective cap, unscrew the hub nut with a "shoulder" (extension) - a pipe or a pry bar. After removing the hub nut, unscrew the wheel bolts.
Video (click to play).
Let's move on to the step-by-step instructions:
