Replacing the silent blocks of the crab VAZ 2109. What is the “Crab” fastening system?

What to consider when choosing a new crab?

As stated previously, all front brace brackets are designed to be frangible to ensure the safety of more critical parts when impacted by obstacles.
At the same time, all crabs currently on the market can be divided into the following groups according to the materials from which they are made:

silumin;
magnesium-aluminum;
steel.

New crab VAZ 2114
While the first two types of crabs work on the same principle (they break apart in an accident and differ only in their weight and strength), steel crabs act somewhat differently. They are made of a powerful metal base with a welded steel strip that serves as a traction mount.

The fragile element in this case is the weld - if damaged, it bursts and the entire bracket is divided into two parts.

This design is more reliable (for example, it will not burst while tightening the bolts, which sometimes happens with low-quality crabs), but you should understand that it will “work” only with a strong impact. A collision with insufficient energy to fracture a weld may well be sufficient to damage other suspension components.

What is a “crab” in a car and in what cases does it need to be changed?

Many car enthusiasts, when bringing their car in for maintenance, are faced with a number of professional words that they do not quite understand. Some auto mechanics try to write the most correct and literate names of components, while others use jargon. One of the words found in the vocabulary of specialists is “crab”. And this is not a well-known delicacy. Today we will talk about why it is needed in the design of a car and when the part will have to be replaced.

The correct name for the “crab” is a longitudinal brace. I could not find the exact origin of such jargon, but there are certain ideas. Apparently, auto mechanics decided to replace the awkward phrase “stretch bracket” with the simple word “crab”, taking a kind of abbreviation. So why do we need a part with such an extravagant name?

"Crabs" are found on front-wheel drive vehicles and hold the front suspension arm. They ensure proper operation of the system and do not have consumables in their design, but wear out over time. There are products made from two materials on the market: silumin (an alloy of aluminum and silicon) and steel. Silumin seems to me to be a more preferable option, since it is less susceptible to the influence of high humidity and does not create unnecessary stress on other elements.

The “crab” should be replaced with a new one in several cases. Most often it cracks and may not initially show signs of high wear. If you see defects during a visual inspection, it is recommended to replace the part with a new one as soon as possible. If the “crab” has already cracked, then an unpleasant and loud creak will appear when turning. There are often cases when a cracked element sags under load and begins to touch obstacles on the road.

The main danger posed by a broken “crab” is the possibility of deformation of the entire suspension. Sometimes the wheel literally opens at speed, which leads to serious trouble. That is why you need to treat the element responsibly and change it if necessary. In the end, I note that most often the “crab” is found on budget cars, especially domestic ones.

Cost and features of brands

Let's start with, which specializes in the production of spare parts for the national automobile industry. Products are certified. Quality standards are maintained in accordance with the standards adopted in the Russian Federation. Brackets of this brand are made by stamping and welding from sheet steel. The bushing material is polyurethane, whose safety factor is higher than that of rubber analogues. The strength of the adhesive connection virtually eliminates separation from the metal even under extreme loads. The “Sitek Profi” variety has increased body strength and rigidity of silent blocks. Estimated cost – 1250 rubles per set.

Products from Autoproduct, designed to replace standard brackets, not only improve vehicle handling, but also reduce the load on the body. They increase the rigidity of the suspension mounting points and allow you to set the caster to more than 2 degrees. Approximate price: 1750 per pair.

Under maximum loads, which means frequently occurring bumps, holes, potholes and other unevenness of the road surface, the “CS-20 DRIVE” mounts will give the motorist the opportunity to control the stability of the vehicle and the separation of the wheels from the highway.

Imported three-component poured polyurethane, including prepolymer “CS3516-B”.
Mixed compounds of polyols "CS3516-65A" and catalyst "CS3516-C".

The part is an original development for the CS-20.

Improved controllability.
Wear resistance.
The service life is several times longer than rubber analogues.

The described benefits remain at any time of the year. Temperature range: from -60 to +140 degrees Celsius. Price – 650 per unit. At the same time, the standard Tolyatti one has a range from 344 to 383. Polyurethane fasteners from the PIK company cost from 394 to 438 rubles. Sports “crabs” “Tehnomaster” will be sold to you for 1 thousand 350 rubles - a pair. Among the stated advantages are increased rigidity and improved controllability of the machine. Due to the installation of bushings of smaller diameter.

If we talk about more budget options, the reinforced Inter-auto bracket sells for 275 rubles apiece. Weight 535 grams. Dimensions 15*13*7 centimeters.

From all of the above, we can conclude that on average standard mounts cost from 275 rubles per unit. High-strength sellers estimate 650-900.

What to do if the crab breaks?

Generally, there are two main types of failure. The first is that the crab can be completely destroyed (in this case, only a replacement will help).

Second, only one bolt came off. But even here it is very difficult to restore the unit, because, as a rule, the threads on other nuts are completely torn out.

There are two options - go to a service station or do the repairs yourself. The first option is the simplest, but requires certain costs.

In the second case, you can get the job done in 15-20 minutes and save your personal budget. So why spend money? Moreover, we will look in detail at how to change the crab.

Step-by-step instructions for replacing the crab on a VAZ 2109

Welcome, friends, to the DIY VAZ car repair website.
VAZ 2109 cars are famous for their reliability, unpretentiousness and ease of maintenance. But they have several problem areas, one of which is the front suspension extension fastener (“crab”). This unit is made of silumin - a very fragile and “delicate” material.

Replacing the crab VAZ 2109

It is enough to drive onto a high curb or stone once, and the crab is destroyed. This is very dangerous, because the front part of the lever remains without support and in a suspended state.

As a result, the front wheel is not fixed. The result can be disastrous - loss of controllability and an accident.

Please note that if such a malfunction occurs, it is prohibited to operate the car - an urgent replacement of the VAZ 2109 crab is necessary.

What to do if the crab breaks?

Generally, there are two main types of failure. The first is that the crab can be completely destroyed (in this case, only a replacement will help).

Second, only one bolt came off. But even here it is very difficult to restore the unit, because, as a rule, the threads on other nuts are completely torn out.

There are two options - go to a service station or do the repairs yourself. The first option is the simplest, but requires certain costs.

In the second case, you can get the job done in 15-20 minutes and save your personal budget. So why spend money? Moreover, we will look in detail at how to change the crab.

How to replace a crab on a VAZ 2109

The first thing you need to do is secure the car (put it on the handbrake, support it with wheel chocks).

Next, proceed in the following sequence:

Raise the front part of the car with a jack and install supports;
remove the bumper and engine protection;
remove the stretch or move it to the side;
unscrew the VAZ 2109 crab mount (nuts that remained after the impact);
remove the washers (be sure to count how many washers were used and remember how they were installed);
Before installing a new crab, install the required number of adjusting washers;
tighten the mounting nuts.

Features of repairing a crab platform

If after the impact the platform of the VAZ 2109 crab is also damaged (for example, a crack appears), then it must be welded.

Attention! When carrying out welding and repair work, do not forget to follow safety precautions.

To solve this problem, stock up on a powerful plate with crab nuts already attached at the car shop (note that they must be welded well).

Before carrying out work, be sure to close the generator and radiator. Then proceed like this:

Place the purchased plastic and mark the cut points;
remove traces of corrosion around the cuts (this can be done using a grinder).

You can proceed to further work only after proper cleaning;

Remove the negative voltage from the battery.
Weld the plate. Take your time - the quality of the seams must be perfect.
Clean and treat the assembly with primer.
Return everything to its place and use the car.

Remember that driving with a broken “crab” is life-threatening. Therefore, after strong impacts on curbs and stones, always check the bracket for integrity and make timely repairs (replacement).

This is the only way you can protect yourself and your loved ones from tragedy. Good luck on the roads and of course no breakdowns.

The process of replacing the crabs of a VAZ 2109 car

Crab breakage often occurs in the VAZ suspension, to be more precise, in the front part of it. This is due to the fact that crabs are made from a bad metal called silumin. This is done for a reason; if there is a blow or simply an excessive load, then it is the silumin that easily breaks, but all the other parts associated with it remain intact.

Although a metal crab will withstand a load or impact, the shock will be transferred to the elements associated with it, for example, a “television” or a spacer, and as a result, you will end up with a more expensive repair.

How to tell if your crab is broken

This can be done even without lifting the car. In addition, you will hear a characteristic “crackling” sound in the front of your car. But to replace the crab, it is better to drive up to an overpass or pit. However, this can also be done on asphalt if you have a jack. Be prepared to remove the crankcase guard and bumper to get to the part.

You will also need WD-40, because most often the nuts and bolts on which the crab is attached turn sour. And even with WD it’s not always possible to unscrew them; there are situations when you have to use an angle grinder.

First we release the spacer, then all the other attachment points. When removing a broken crab, remember the places where the washers were and how many there were. Believe me, this point is very important, since the adjusting washers are responsible for the required position of the crab. The installation of the crab itself is a simple process, the only thing is do not overtighten the bolts, because, as mentioned above, silumin is a fragile thing.

Thickness is another indicator that you should pay attention to when buying a crab for your VAZ 2108 - VAZ 2109. The ideal option is the maximum thickness of the silumin crab ribs. This will increase its strength compared to the factory one, and will not damage other elements even in the event of a strong impact. Well, be careful about the strength of the cushion with the clip. The more powerful they are, the longer the part will last. Therefore, a polyurethane crab pillow is the most suitable option!

Replacement of VAZ 2109 crabs and platforms for them

Crab - a bracket that secures the car suspension brace.
A common problem with the “nines” is the destruction of the bracket that secures the car’s front suspension brace, which is located under the front bumper. Replacement of the VAZ 2109 crab is necessary in case of its destruction, in case of accidental bumping into a high stone or curb, as well as cracks due to “fatigue” of the metal. It is made of a rather fragile aluminum alloy silumin, which is easily destroyed upon impact. When the “crab” is destroyed, it is necessary to replace the VAZ 2109 crab, since the front end of the lever loses its fastening, hangs freely in the air, and no longer holds the front wheel of the car in the desired position.

VAZ 2109 front suspension diagram

The front suspension of the VAZ 2109 is an independent element of the car, which allows each wheel to work separately from the other. This moment is a very important emphasis in driving a car. Due to this, the VAZ 2109 handles better and feels the road, allowing you to perform complex maneuvers and elements of extreme driving.

The main element of the front suspension of the VAZ 2109 is a telescopic shock absorber strut. There are racks:

Buttered ones are soft and comfortable. A good choice for bad roads. But on the highway you will be thrown around at high speed.
Gas - rigid racks. A good choice for highways, highways and roads without holes and potholes. With such struts, the car holds the road well at high speeds.
Gas-oil ones are something between the two previous racks. Usually these are the racks that are installed. as they are not too hard and soft.

The racks are equipped with coiled springs for rigidity, which also determines your comfort. The top of the strut is secured with 3 bolts along with a support bearing that allows the strut to turn with the car's wheels.

Shock absorber strut.
Rod bracket.
Traction.
Front lever.
Spherical bearing.
Rotary cam.
Front stabilizer
Stabilizer bar

The next most important mechanism in the front suspension is the steering cam. Its lower part is connected to a ball joint, which allows us to rotate our mechanism. The top of the steering cam is connected by two bolts to the bottom of the strut. The top bolt allows you to adjust the camber. A thrust bearing is attached to the rotary cam itself, on which the hub is in turn attached.

The anti-roll bar is a bar, which is attached to the car body through silent blocks using a bracket (popularly called crabs). and on the other side to the lower suspension arm.

Replacing Silent Blocks of the Crab VAZ 2109

Replacing silent blocks Front suspension VAZ 2109

This article will tell you how to replace lower control arm silent blocks front suspension

Do it yourself VAZ 2109.
Replacing silent blocks
.
refers to more complex work related to the chassis. However, if everything is done correctly (as indicated), problems and difficulties should not arise. To make this more clear, I am adding informative photos to this VAZ 2109
.

replacement of front silent blocks of VAZ 2109, tools:

Visa.
New silent VAZ units 2109
.
Soapy water (detergent or liquid soap).
Gas burner or other fire source.
A piece of pipe of such a diameter that the silent block fits freely into it.
A set of keys.
Chisel and hammer.
WD-40.

It is best to carry out work on an inspection hole or a lift.

So, let's begin. replacing silent blocks

VAZ
2109
begins like any other dismantling and dismantling job.

1. Replacing the rear silent blocks of the VAZ 2110. Unscrew the lower arm. To do this, use an extension head to unscrew: the tension nut, the nut for attaching to the body, as well as the anti-roll bar and two ball joint bolts. It will take a lot of force to break stuck and rusty nuts, otherwise use WD-400 or heat the joint. If the nut does not loosen even after all the above methods, unscrew the crab

, then pick it up and try again.

Replacement of pads

If welding the platform does not make sense (the thread of the nut or the nut itself is broken, the bolt securing the VAZ 2109 crab is broken), then a grinder and welding will be needed here.

Tip: When starting to replace the site, be sure to close the radiator, and if welding is performed from the passenger seat, then also close the generator from sparks. There is no need to remove them; this is an additional and unnecessary waste of time and money (if the repair is carried out at a service station).

Let's move on to actions:

Attach the plate and mark the places for future cuts Using a grinder, remove the old pad, rusty metal and clean the areas around the cuts; when welding, it is important that the metal is clean. Before performing welding work, you need to remove both terminals from the battery. Weld the plate firmly. The quality of the seams is important here , it must be good, since the part operates under conditions of increased loads, so it makes sense to entrust this work to an experienced welder

The bracket is screwed to the overcooked platform, although the quality of the seams leaves much to be desired, and they were clearly too lazy to clean them

To prevent your car from looking like in the photo, after completing the welding work, you should clean the seams and, to increase protection against rust, coat the surfaces with anti-rust (for example, Tamak) and cover with primer
Attach the stretcher (if you removed it), screw the bracket into place, tightening each bolt of the VAZ 2109 crab (again, carefully, do not break the bolts) Then attach the bumper (see Removing the front bumper of the VAZ) and the lower protection
In the future, when operating the car, it is recommended to check the brackets after each strong impact.
It is recommended not to drive with a broken (split, cracked) “crab” unless absolutely necessary (this is dangerous for the health and life of people around you and for you too). Faulty (damaged, cracked) “crabs” discovered in time should certainly be replaced with new ones as soon as possible
This measure will help save your money, as well as your health and life. Replacing the brackets is complete, everything is simple and completely doable on your own.

Replacing the crab platform of a VAZ 2109 with your own hands

A selection of videos, practical tips on how to replace the crab platform of a VAZ 2109 - go ahead, we are waiting for you. Here you will find videos on car repair, reviews and photos. How to repair a car yourself at home. We will help you with repairs and repair the car yourself. We know how to restore a car with minimal investment. I have attached video instructions.

Category: Auto repair

Laughter in the subject: - Evgeniy Viktorovich? I won't go to work today. I was putting on my winter boots and was tired.

Published by Admin: at the request of Lavrentiy

Car owner's opinion: Comfortable suspension, excellent visibility, separate seats are very convenient.

A common problem on “nines” is the destruction of the front suspension extension mounting bracket, which is located under the front bumper. The brace bracket got its name “crab” from the four holes for the bolts. Made of brittle silumin material, it is easily destroyed if it accidentally hits a high stone, curb, or due to metal corrosion. If the “crab” is destroyed, the front end of the stretch lever loses its attachment and hangs in the air, not holding the front wheel in its normal position. As a result, the wheel may move forward or backward. Further operation of the vehicle is impossible.

The most common two types of failures are the complete destruction of the crab or the tearing off of one bolt along with the nut, and the threads of the two remaining nuts are torn off. There are two ways to fix the problem: carry out all the repair work to replace the crab yourself or contact a specialized workshop.

Changing the “crab” to a VAZ 2109

We settle on the first solution - to carry out the repair work to replace the crab on the VAZ 2109 ourselves, which is not a very complex or difficult task.

First of all, you need to put the car on the parking brake (handbrake) and place “shoes” under the rear wheels. Using a jack, raise the front of the car. Remove the bumper and protection from below. During the work, you need to remove the stretch, and if you decide not to remove it, make sure that it does not interfere.

First, unscrew the remaining nuts if they were not torn off when the car hit the crab. Remove the spacer washers one by one. It is recommended to count the number of washers used on each hole, as well as the order in which they were installed. When installing a new “crab”, do not forget to first put the adjusting washers in place; they are installed in reverse order. Next, tighten the nuts.

It is recommended to replace serial “crabs” with steel brackets with silent blocks of increased rigidity.

Replacing the site

If a crack has formed on the “crab” platform, it can be welded. However, it may turn out that it is necessary to change not only the bracket, but also the platform on which it is attached (and possibly both platforms and both brackets - left and right). At an auto store, buy a reinforced plate with welded nuts for attaching the “crab.” Pay special attention to the quality of the welded nuts, on which traffic safety depends. The nuts can be welded to the plate at one welding point; you need to weld the nuts yourself in a circle, thus strengthening the fastening with the plate.

When replacing the pad, close the radiator, and if welding will be done on the passenger side, then also the generator. There is no need to remove them - this is an additional cost.

We apply the plate and mark the places for future cuts. Using a grinder, we remove rusty metal and clean the area around the cuts so that the metal is clean when welding;
before performing welding work, it is necessary to remove the terminals from the battery;
We weld the plate. The quality of the seams must be very good, the part is subject to significant loads;
After completing the welding work, we clean it again and cover it with primer. To enhance protection against corrosion, it is advisable to coat the metal with an anticorrosive agent;
attach the stretcher (if removed), install the “crab” in place, attach the bumper and protection.

During further operation of the car, if you feel a strong blow, be sure to inspect the brackets. Don't drive with a broken crab. Be sure to replace faulty “crabs” with new ones if you notice them in a timely manner. This will help you save money, and most importantly, your health.

Useful video on the topic:

Replacing a crab on a VAZ 2115 with your own hands - step-by-step instructions

Crab – bracket securing the car suspension brace

A common problem with “nines” is the destruction of the bracket that secures the front suspension brace of the car, which is located under the front bumper. Replacement of the VAZ 2109 crab is necessary in case of its destruction, in case of accidental bumping into a high stone or curb, as well as cracks due to “fatigue” of the metal.

It is made of a rather fragile aluminum alloy silumin, which is easily destroyed upon impact. When the “crab” is destroyed, it is necessary to replace the VAZ 2109 crab, since the front end of the lever loses its fastening, hangs freely in the air, and no longer holds the front wheel of the car in the desired position.

A fairly common “sore” of many models of the VAZ family is a faulty or damaged front suspension extension fastener, or in common parlance, a “crab”. The crab holds the front suspension brace located under the front bumper.

Often, the destruction or malfunction of the crab occurs due to the fragility of the product itself, which is made of silumin or another aluminum-based alloy. The crab usually crashes on high rocks, a curb, or other elevation that the driver did not notice.

The question of why it was necessary to make a power part from such a fragile metal worries many “victims”. The answer is actually quite simple. With its fragility and rapid destruction in the event of an impact, the crab saves more important and expensive parts such as a “TV” or a spacer.

A broken or cracked crab is a pretty big problem if you find yourself far from home and a service station. The fact is that in the event of complete destruction, you most likely will not be able to get home even at a very low speed. Due to the fact that the front end of the lever remains unattached and simply hangs in the air, the wheel becomes uncontrollable and begins to move either backwards or forwards. As you understand, in this case the only way to get home is by carriage.

It should be noted that a malfunction of the crab does not always manifest itself in the form of a completely immobilized car; it often happens that the fastener itself is absolutely intact, while knocking noises are heard while driving over uneven surfaces. It’s quite simple to check whether it’s a crab; you just need to drive into a “pit” or lift the car on a lift. The presence of play indicates wear in the fastener and requires immediate intervention and replacement of the faulty crab.

In this article you will learn how to replace a crab on a VAZ 2115 at home if it malfunctions. The work is simple and does not require special skills or tools, the main thing is to follow the sequence of actions.

Note! When replacing crabs or just one crab, be sure to stock up on new bolts, because the old ones can be deformed and have cracks, and the heads on the bolts can also be torn off (And these bolts constantly turn sour and unscrewing them can be so problematic, because which is why heads are mostly torn off)!

Removal: 1. First, lift the front part of the car on a jack and secure it well by placing blocks of wood under the sides of the car and, for better stability, put something under the levers, just in case (In general, you will need to hang the front part and secure it well, with whatever you can), then slightly loosen the nut that secures the guy wire to the crab (Indicated by a blue arrow) and proceed to unscrew the three bolts securing the crab to the platform (Indicated by red arrows), and when the bolts are unscrewed, carefully lower the crab, completely unscrew the nut securing the guy wire and take it out and leave the stretch, let it hang.

Note! Spacer washers will be installed under each bolt; they will need to be installed in exactly the same places, in the same quantity and exactly as they were, so when you turn out the bolts, carefully remove these washers and remember their location under the bolts !

How to replace crabs on a VAZ 2108-VAZ 21099?

Note! When replacing crabs or one crab of some kind, be sure to stock up on new bolts, because the old ones can be deformed and have cracks, and the heads on the bolts can also be torn off (And these bolts constantly turn sour and unscrewing them can be so problematic, which is why mostly the heads come off)!

Removal: 1. First, lift the front part of the car on a jack and secure it well by placing blocks of wood under the sides of the car and for better stability, put something under the levers, just in case (In general, you will need to hang the front part and fix it well, everyone than possible), then slightly loosen the nut that secures the guy wire to the crab (Indicated by a blue arrow) and proceed to unscrew the three bolts securing the crab to the platform (Indicated by red arrows), and when the bolts are unscrewed, carefully lower the crab, completely unscrew the fastening nut stretch marks and take it out and leave the stretch mark, let it hang.

Note! Spacer washers will be installed under each bolt; they will need to be installed in exactly the same places, in the same quantity and exactly as they were, so when you turn out the bolts, carefully remove these washers and remember their location under the bolts!

Installation: The new crab is installed in the reverse order, in this case all its fastening bolts are replaced with new ones and the washers are installed in the same places where they were previously.

Note! Screw in the crab fastening bolts with good force, but we don’t recommend screwing them in very powerfully, they will turn sour and then you simply won’t be able to unscrew them in the future, but there is one But! After removing the crab, inspect the platform to which it is bolted and if suddenly you find cracks and other types of deformation on it, then you will have to resort to replacing the platform with a new one, but by the way, it is not always necessary to change it immediately when a crack is detected, for example, if the crack does not is large, then try welding it and the platform will continue to serve your car faithfully, you just have to keep an eye on it, but if the platform is very deformed, if its nuts are torn off and the bolts securing the crab simply no longer fit, then it will have to be replaced with a new one , to do this, you need to cut out the old platform with a grinder, and buy a new one and weld it by welding, that’s all, the replacement of the platform is complete, but just be sure to weld all the seams well, before welding, be sure to clean the metal from dust and dirt, and so on!

Additionally _ You can see how to replace it in the video below:

Note! And you can also see how you can strengthen the crab platform on cars of the Samara family and the Samara 2 family in another video, which is also located just below:

–> VAZ Masters / Chassis / Repair

Crab – bracket securing the car suspension brace

How to replace a crab on a VAZ 2115 with your own hands - step-by-step instructions

We drive into the pit, put the car on the handbrake, install wheel chocks, and jack up the front end.

We dismantle the protection and remove the front bumper.

Using a “24” wrench, unscrew the rod nut.

After this, you need to unscrew the three bolts securing the crab to the platform and remove it.

We install the new crab in place and fasten it with bolts.

Further assembly is performed in reverse order. Before tightening, we lubricate the fastening bolts with graphite or, in extreme cases, with polish, this will make your life easier in the future.

That's all I wanted to say! As you can see, there is nothing difficult in this work. Now you know what a crab is, why it breaks and how to replace it if it malfunctions

Thank you for your attention and see you again at VAZ Repair

Today, such a mechanism can only be found in cars of several brands. Quite often, various situations happen with VAZ 2115 cars, resulting in deformation or breakage of the element. Experienced professionals who repeatedly deal with the repair of these car brands recommend that owners treat the car with care so as not to damage the specialized bracket. However, given the state of our roads, this is quite difficult to do.

Emergency situations and their solutions

Quite often, quite experienced owners of a VAZ 2115 car install a “crab” made of titanium alloys. This solution is highly durable and guarantees a high level of safety at various speeds under conditions of high loads. If damage or cracks occur, it is recommended to move slowly or call a tow truck to deliver the vehicle to a service center.

If the crab is completely torn off, it is necessary to call a tow truck and go directly to the service station so that experienced professionals can weld or completely replace such a spare part. An important condition for operating a vehicle in various situations is the level of damage that determines the ability of the vehicle to move independently.

Features of performing repairs and self-replacement of the crab on a VAZ 2115

In order to begin independently replacing this part or repairing it, you must have the following tools and materials:

Standard set of sockets or spanners;
Specialized liquid VD-40;
A reinforced pipe, which may become necessary if the fasteners, that is, the bolts on the bracket, are too oxidized.

If the owner wants to carry out independent repairs, then it is necessary to have a specialized welding machine and some experience in using such a unit.

Step-by-step instruction

Experienced service center professionals have created successive steps that will help the owner of a VAZ 2115 independently replace the “crab”:

place the vehicle on the pit;
turn on the handbrake;
install wheel chocks;
use a jack to raise the front of the car;
dismantle the protection;
remove the front bumper;
unscrew the rod nut;

unscrew several mounting bolts;

dismantle the mechanism;
install a new element (or a restored old one);
tighten the bolts;

carry out installation according to the previous principle, but in reverse order.

Recommendations from experts

It is recommended: before finally securing the bracket bolts, they must be lubricated with a specialized product so that they do not oxidize, and in the future this part can be replaced without any problems.

It is important to note that a faulty bracket may not always completely immobilize the vehicle. Thus, if any errors are observed in the functioning of this mechanism, it is important to carry out independent diagnostics or contact experienced specialists

During the operation of the car, play appears repeatedly, which indicates negative changes that have occurred with the bracket

In such a situation, it is important to inspect the vehicle and, if necessary, replace the faulty mechanism

How to remove crabs on a VAZ 2109

Crabs are the popular name for rod brackets. Removal of crabs on a VAZ 2109 car and other front-wheel drive models of the Samara family is carried out to replace them or carry out repairs in which their presence will interfere.

The main reasons for the failure of rod brackets are non-functioning racks, which provoke a strong impact and, as a result, a load on the bracket, resulting in its mechanical damage (cracks and chips on the crab body).

And the second reason is natural operational wear, which results in play in the rubber bushing, which leads to a characteristic dull knock in the suspension.

These defects are identified by visual inspection, rocking the car body and parallel observation of the behavior of the brackets. If there is play, you will see it immediately.

To carry out repair work on removing the rod brackets, it is recommended to drive the car into a pit or overpass.

Prepare a standard set of tools and perform the following sequence of actions:

Loosen the central nut securing the linkage, as well as the three bolts securing the crab to the front of the body.
After unscrewing the fastening bolts, remove the bracket from the rod.
Before installing the new bracket, we treat all threaded connections with lubricant, as well as the seating plane of the rod.
We put the new bracket on the rod and fasten it.

At this point, the repair work to remove and replace the crabs on the VAZ 2109 car has been completed.

Crabs, stretch marks, levers!

If I remember correctly, I remembered the spar!

the spar, if my memory serves me correctly, is part of the body. its hard basis, so to speak. this can only be changed by “cutting” - “welding”

I’ll explain: a crab is a crab, forgive me what it’s called in the catalog

You can install a subframe to accommodate it.

There is a rule on the forum that you use a photo of your car as an avatar. Therefore, I ask you: change your avatar.

(if for some reason you cannot make your car as an avatar, you can contact the moderators or leave this field empty)

Stretch bracket assembly (crab) for VAZ 2108

Manufacturer: Chance Plus
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Dear customers, in order to avoid mistakes when sending the brace bracket, in the “Comment” line, indicate which side you need (driver or passenger), and the model of your car.

The tension bracket assembly is made by casting from high-strength aluminum, of a complex configuration with stiffening ribs that increase fracture resistance. A rubber-metal hinge, cast from rubber with high strength properties, is pressed into the body. The bracket is mounted on a brace for attachment to the body panel. This unit prevents damage to the lower control arm. This is done so that upon impact it is not the lever that suffers, but this unit.

The right and left sides always look IN the direction of the car (moving forward) and in no other way, the driver’s side is on the left, and the passenger’s is on the right.

If, after replacing the extension, the car begins to pull to the side when driving, contact a specialized workshop to diagnose the front suspension, being sure to inform the repairman that the extension was changed.

What influences price formation?

The cost of the “crab,” like any other component, depends on the cost of its production and the markup set by the seller. However, the costs of each enterprise, car dealership or online resource are calculated differently. Based on this, even identical fasteners do not have a fixed cost. For example, a set of “crabs” of the “Sevi Expert” brand can cost either 587 or 924 rubles. Intermediate options range around 650 rubles. Then everything depends on the availability of goods in the warehouse and delivery time.

It is no secret that the final amount in the check is influenced by the manufacturing technology of spare parts. Catalogs are full of names of various manufacturing companies. Each, in pursuit of a client, tries to maintain the ratio of price and quality.

Clutch Lada Kalina

The exhaust system caused trouble. By the sixth ten thousand, the muffler pipe broke off - as smooth as a knife, it was cut off close to the bracket. There are high vibration loads here, the pipe is weakened by corrosion - where else can it break? As soon as the pipe was replaced, the resonator leaked. And while changing it, they found a more serious malfunction: the honeycomb filling of the converter dangles and rattles in the body of the catalytic manifold. It is natural to assume that it has already been partially destroyed - and this promises new adventures. However, the test showed that the “aging coefficient” of the neutralizer is still half the critical value, and toxicity is normal. And we reasoned: the car is Euro III, which means we’ll wait until the self-diagnosis turns on the warning light, then we’ll think about replacing it.

Let's get started

The brace bracket began to be called a “crab” because of the four existing holes for bolts, giving it some resemblance to a claw. You can determine if the crab is broken by the characteristic “crackling” sound that appears in the front of your car. You can look at its condition and determine the scale of destruction without even lifting the car. We choose the first solution - replacing the crabs with a VAZ 2109 yourself, it is much cheaper and does not present any particular difficulties:

First, we purchase a new crab and a set of bolts for it; on old ones, the threads may be torn off
First, we roll the car onto a pit or overpass
Then you need to put the car on the “handbrake” (parking brake) and support the rear wheels with “shoes” (or wooden blocks to prevent it from rolling away)
Raise the front of the car with a jack
Remove the bottom protection and bumper
During work, you need to remove the stretcher, if you don’t remove it, then you need to make sure that it does not interfere with you

Bolts securing the crab to the platform

First, unscrew the remaining mounting bolts, if they did not come out of the “crab” when the car hit
Remove the spacer washers one by one
We recommend that you immediately count the number of washers removed from each hole and remember the order in which they were installed
When screwing on the new “crab”, first do not forget to put all the removed adjusting washers in their places; install the washers in the reverse order
Then we screw in the bolts of the crab VAZ 2109, securing the brace bracket in place
We tighten them with force, but without fanaticism, so as not to tear them off
This completes the replacement of the crab for the VAZ 2109, but it doesn’t always turn out to get off so easy
It happens that the platform breaks along with the stretching bracket

We buy spare parts

When, after unscrewing the bracket, you discover that a crack has formed on the platform, do not rush to replace the platform; the crack can be welded. Sometimes, however, it becomes necessary to replace not only the bracket, the bolts on the VAZ 2109 crab and the platform to which it was attached were also damaged (and it happens that both platforms or both brackets, left and right):

Then in the car store we purchase a reinforced plate to which nuts are welded to attach the “crab”. When choosing, you should pay special attention to the quality of the welded nuts, since your safety when driving the car depends on this. If there is no particular choice, and the nuts were welded to the same bar welding point (well, or two), then you need to independently weld all the nuts in a circle, in order to strengthen their fastening with the plate. Definitely buy new bolts for the VAZ 2109 crabs, so that microcracks or other defects do not surface later. When choosing rod brackets, you should carefully choose not only the material from which it is made, but do not forget about the thickness. The best option for installation would be a bracket made of silumin, which has a maximum thickness of ribs. Since it is stronger than the factory one, however, will it damage the “TV” spacer in case of a strong impact? A cast iron bracket is stronger than a silumin , however, cast iron is also fragile and cracks when impacted, and besides, it can damage the spacer and the “TV”; the instructions don’t decide this issue for you. It’s worth paying special attention to the strength of the rubber cushion and its clip - the more powerful they are, the longer they will last will work out the detail We recommend choosing a crab that has a polyurethane cushion. Do not take an inexpensive one (the low price is alarming), or without packaging, we remind you of possible fakes! And don’t forget that there are right-handed and left-handed brackets and platforms; when replacing, this is of great importance

labavto.com

Specialized fastenings in the VAZ 2115 car, more popularly known as “crab”, quite often require replacement or repair in cars of this brand. The mechanism is a kind of bracket for fastening the extension. The original name comes from its shape. The product consists of a bracket with holes for bolts, which is why this mount looks like a crab.

Emergency situations and their solutions

Features of performing repairs and self-replacement of the crab on a VAZ 2115

In order to begin independently replacing this part or repairing it, you must have the following tools and materials:

Standard set of sockets or spanners;
Specialized liquid VD-40;
A reinforced pipe, which may become necessary if the fasteners, that is, the bolts on the bracket, are too oxidized.

If the owner wants to carry out independent repairs, then it is necessary to have a specialized welding machine and some experience in using such a unit.

Step-by-step instruction

Experienced service center professionals have created successive steps that will help the owner of a VAZ 2115 independently replace the “crab”:

place the vehicle on the pit;
turn on the handbrake;
install wheel chocks;
use a jack to raise the front of the car;
dismantle the protection;
remove the front bumper;
unscrew the rod nut;

dismantle the mechanism;
install a new element (or a restored old one);
tighten the bolts;

Recommendations from experts

During the operation of the car, play appears repeatedly, which indicates negative changes that have occurred with the bracket

In such a situation, it is important to inspect the vehicle and, if necessary, replace the faulty mechanism

New warning triangle: installation requirements

Today we have a new addition to the homemade car section: replacing the crab mount for a VAZ 2108-99 with your own hands.

Good day to all. Recently someone came to me with a “problem” - they couldn’t tighten the bolts to secure the crab. A quick inspection yielded the result: the fastening in the body had rotted and, as a result, the nuts into which the bolts were screwed had fallen off.

In the photo I have cut out a fragment of the body, on which the places for the nuts are clearly visible. It was cut out using a grinder. Stores sell ready-made products that just need to be welded in place of the old one) But we are not interested in it)) After all, we are homemade. Therefore, a piece of corrugated sheet metal measuring 20 cm by 100 cm was purchased at a metal warehouse. Its thickness was 3.5 mm, which is quite enough for our needs. I cut a piece from the sheet a little larger than our old mount. I don’t mention the dimensions of the parts, because... it was all done locally or according to a template.

Using a grinder, I adjusted the dimensions to the required size, i.e. at the location of our cutout.

Having placed the crab on the lever and attached it to the plate, I immediately marked the locations for the holes. Having drilled holes with an 8 mm drill, I got such a product.

Taking a crab and bolts with nuts, we assemble it all on the knee and get a product in which the nuts are scalded. Assembly on the elbow is necessary so that later during installation there will be no problems with bolts getting into the threads.

We screw the crab into place and adjust the product immediately into place, while making potholders.

After grabbing the product in place, unscrew the bolts, remove the crab and scald it with a continuous seam along the cut lines.

Unfortunately, the quality of my seam left much to be desired. I cooked it semi-automatically, but practically didn’t use it (I don’t know how)… But, judging by the seam, it turned out quite strong. Moreover, the reinforcement of the load-bearing lower part of the radiator frame and, accordingly, the mounting of the crabs are made from the same corrugation. This reinforcement was made by trying it on on site and cutting it with a grinder.

The photo shows a cut in the sheet. It is needed to bend the part.

All this was bent with the help of a hammer and some mother... The cut line needs to be welded for strength. Having applied the product, we get a completely acceptable result. All that remains is to drill the holes for the crabs and weld them.

Unfortunately, I can’t post a photo of the finished result, because... For some reason, another person will complete the work. And so everything should turn out strong and reliable.

Crab on VAZ 2114: operation and replacement

Very often, on cars produced by AvtoVAZ, a malfunction occurs such as a breakdown or even complete destruction of the front suspension brace fastening. The crab on the VAZ 2114 is no exception (this is what many drivers call this fastener). The main reason for such frequent breakdowns is the material from which the crab is made, namely various aluminum alloys (like silumin).

If, while driving, a car touches high protruding elements - stones or bricks, with its brace fastening, then in most cases this leads to the destruction of the latter.

It would seem, why did the designers choose this particular material, since crab 2114 could have been made of steel? The answer here is quite simple - this element is made fragile specifically in order to save other, more important and expensive elements of the car suspension when it collapses.

Is it possible to drive with a faulty crab?

In most cases, driving with a faulty brace fastening is impossible. This is caused by the fact that the wheel on the damaged side becomes simply uncontrollable, and movement even at a minimum speed turns out to be extremely difficult.

If the crab is completely broken, you should stop driving the car until it is repaired, and if the breakdown occurs far from home, then call a tow truck.

Cracked crab VAZ 2114

Sometimes a slightly different situation happens - it seems that the mount is not damaged, and the car is driven normally, but at the same time a knocking sound is periodically heard from one of the wheels (especially clearly when going over uneven surfaces).

This may be caused by the fact that the fit of the fasteners on the crab itself has worn out (due to the fact that it is made of fragile material) and backlashes have appeared.

This is very easy to check - you just need to put the car on an overpass or hang it on jacks, and then inspect the mount. If it turns out that backlashes have indeed appeared, then the crab should be immediately replaced with a new one.

Driving a car with a worn-out crab that has strong play can lead to its spontaneous destruction even without colliding with an obstacle (which is extremely dangerous, as it can happen when driving at high speed).

How to replace the crab with a new one?

If signs of wear or damage are detected, it may be necessary to replace the crab with a VAZ 2114. This is quite simple to do and can be done by every car enthusiast.

The only thing you will need is the presence of an inspection hole or overpass and a minimum set of tools:

jacks;
shoes;
flat screwdriver;
set of heads with ratchet;
24mm wrench.

Replacing the crab VAZ 2114

The entire replacement procedure is performed in the following order:

We install the car in the pit.
We install the shoes under the rear wheels.
We hang the front on jacks.
We dismantle the protection and front bumper.
Take a 24mm wrench and unscrew the rod nut.
Unscrew the 3 bolts securing the crab.
We remove the destroyed crab.

Dismantling the crab VAZ 2114

After this, we take a new bracket and mount the VAZ 2114 crab in exactly the same sequence, but in reverse order. As you can see, everything is quite simple and does not require much time. If necessary, the entire replacement procedure can be performed even on the road (provided there is a suitable place for this).

Do-it-yourself replacement of silent blocks on a VAZ 21099

Today we will talk about replacing silent blocks on a VAZ 21099 with our own hands. Replacing silent blocks is a more complex job related to the chassis. However, if everything is done correctly (according to the instructions), problems and difficulties should not arise. To make it clearer, I am attaching informative photos and a description of the steps to replace the VAZ 21099 silent blocks.

What tool is needed for replacement:

- Vise. – New VAZ 2109 silent blocks. – Soapy water (detergent or liquid soap). – Gas burner or other fire source. – A piece of pipe of such diameter that the silent block fits freely into it. - A set of keys. - Chisel and hammer. – WD-40.

I recommend carrying out repairs on an inspection pit or a lift.

Replacing silent blocks on a VAZ 21099

1. Unscrew the lower arm. To do this, unscrew using a socket with an extension: the extension nut, the nut attaching to the body, as well as the stabilizer link and two ball joint bolts. It will take a lot of effort to remove stuck and rusted nuts; if that doesn’t work, use WD-400 or heat the connection.

If the extension nut does not unscrew even after all the methods suggested above, unscrew the crab, then clamp it in a vice and try again.

2. Next, clamp the removed lever in a vice and, using a lamp or torch, try to burn the old silent block out of the seat. If this method does not suit you, then you will have to press out the silent block using a special puller or the same vice, but using fire it is easier and faster to do this.

3. After the silent block has burned out a little, remove it with a screwdriver or chisel; it should come out easily.

4. Now you have a place ready for installing a new silent block, which must be thoroughly blown and cleaned of dirt, dust and rust before installation.

5. When everything is ready, you can begin replacing the front suspension silent blocks with new ones. To do this, you will need soapy water, thoroughly treat the seat with a soapy solution, then install a new silent block as shown in the photo and lightly, using a screwdriver, begin to press it into the hole. You can also apply undiluted liquid soap directly into the hole, then the resistance will be much less. It may not work out the first time, but don’t rush to despair, look at what is “not letting in” and where, tuck it in using a spatula, add soap and get to work again.

6. When the silent block goes in halfway, remove the pipe and press everything to the end. Be careful, do not rush, so as not to “bite” the rubber silent block, or install it awry. Don't forget about soap, add more of it.

7. When you have pushed it to the limit, check whether the silent block protrudes equally on each side. Your result should look something like what is shown in the photo.

8. Now it’s time to replace the silent block of the “daisy” lever. Everything is much simpler here, cut off the old ones using a chisel, and then install the new ones in place. Using the same vice, press them into the mounting hole. Finish using milk and setting.

9. When the lever is ready, you can begin assembly.

10. On the other hand, everything is done in the same way.

11. Do the final tightening of the nuts when the car is “on the ground”.

Independent replacement of VAZ 21099 silent blocks was successfully completed. Let us remind you that the last publication on our website was about replacing the idle air control valve VAZ 21099.