Body dimensions of Lada Largus, Kalina, Granta and Priora: what geometry means and how linear and control dimensions are taken

Signs of violation of factory geometry

• Vibrations appear, accompanied by atypical extraneous noise.
• The overall controllability of the car decreases: when moving, it is “pulled” to the side, making maneuvers difficult.
• The car loses stability when driving, especially at high speeds.
• The suspension, as well as the entire chassis of the car, often begin to fail.
• Tires wear out quickly and unevenly.
• Fuel consumption increases.
• It is impossible to adjust the wheel alignment correctly.

The presence of such symptoms indicates that urgent restoration of the geometry of the car body is necessary.

Body repair Lada Largus. Geometric dimensions of the Lada Largus body

xn--44-6kchdmw3bgiawoo4b.xn--p1ai

Body geometry VAZ 2112 slip dimensions

To independently solve the problem of restoring parts of a VAZ 2112 car, you need to have the geometric dimensions of its body. In professional workshops, these parameters must be taken into account, and they are individual for each machine model. Violation of body geometry must be eliminated, since it significantly reduces the safety of driving such a car. From this article you can learn important information about the indicators on which high-quality repair of the VAZ 2112 body depends.

The influence of body geometry on handling

During the operation of a VAZ 2112 car, sooner or later deformation of body parts occurs. Safety on the road and ease of operation depend on the level of their wear.

VAZ 2112 has been produced since 1999. The car body of this model is similar to the 2110 modification, the difference is that the first is slightly shorter than the second.

The steering wheel makes turns easier and faster.

Model 2112 is characterized by a sporty character. It combines the winning parts of the 10 with the estate rear seat from the 2111, making the car much roomier and more maneuverable. The ability to transform the rear seat allows, if necessary, to significantly increase the volume of the interior. Improved handling characteristics have simplified the process of entering a turn, which has significantly increased the level of safety for road users.

The VAZ 2112 has several modifications, for example, model 21123 is characterized by an original design of the hood and bumper, which allowed the car body to become popular among many car enthusiasts. After some time, the VAZ 2112 had a new grille model, and the hood took on a standard look.

Geometric dimensions of the “two-piece”

VAZ 2112 is one of the most popular models among the cars produced by the domestic automotive industry. It is relatively inexpensive, has a good design and different body styles.

The main geometric dimensions of the body of this car are as follows (in mm):

• length – 4170;
• width without mirrors – 1680;
• height – 1435;
• width with mirrors – 1875;
• rear door opening diagonal – 1320;
• short diagonal of the rear side window frame – 230;
• the distance between the center of the upper beam of the rear door opening to the middle of its lower beam is 1050;
• the long diagonal of the rear side window frame is 710.

The rarest body type of the 2112 is a coupe, or three-door hatchback. This is a sports model, it stands out from others, which are monotonous in terms of the geometric dimensions of the body. It was the design features of the VAZ 2112 coupe that allowed the model to become in demand at one time. However, after ten thousand examples of the 2112 coupe were produced, production ceased, so it is considered a rare model.

Several modifications of the VAZ 2112 were equipped with hatches, which greatly increased the comfort of the driver and passengers on the road. The geometric dimensions of 2112 made it possible to equip the car with many additional functional capabilities.

Body parts most susceptible to deformation

Sharp braking or untimely start provoke, first of all, damage to the bumper. If it is insignificant, then during repairs it is possible to achieve the performance of standard geometry. In the presence of complex deformations, this cannot be done, so it is easier to replace the damaged body part with a new one.

If the owner of the car does not take enough care of the condition of the body, then those parts that have close contact with the road surface are quickly eaten away by corrosion. And repairing the hood, doors and hidden body parts instead of timely prevention is already more difficult and expensive.

The question arose about replacing the TV (s/o) with a VAZ-2110, as there was great sadness. Like everyone else, in order to save money, as well as gain experience, it was decided to do it yourself. The question arose about the geometric dimensions of the engine compartment. I found a couple of diagrams on the Internet

Comments 18

I also need sizes to check, so which ones to use!

I made it approximately according to my measurements

You probably haven’t been here for a long time) I’ve already done and sold the car! I won’t edit the blog anyway!

Yes, I already made mine too. But this recording will still be useful to someone

Wow, I should try to measure it)

Didn't take any measurements? Otherwise, in just a week I’ll go on vacation, and I’ll start doing shamanism a little

Not yet, I won’t get around to it, but I’ll definitely write back if I intend to)

I would be very grateful

Preparing for replacement and useful information

First of all, having decided to replace the car body with a new one, the owner needs to decide on the purchase and perform a couple of mandatory actions to eliminate errors and possible problems.

1. You definitely need to decide on the body model. In this case, it is necessary to study in detail the technical data of the VAZ 21099 skeleton. As for carrying out modernization and tuning, in this case you need to know that this is not always possible.
2. You also need to decide on the configuration. Thus, VAZ bodies can be of the 1st or 3rd configuration. In the first case, this will mean “body in metal,” which implies the presence of the frame itself and the processing carried out on it (priming, painting, bitumen). As for the “complete body,” it already implies an interior with glass, the presence of lighting fixtures, bumpers, and so on.
3. Finally, the third stage of selection is coloring. Usually the owner wants to get a new body for the VAZ 21099 in the same color as it was before.

VAZ 2109 new body

In addition, the bodies must have other parameters:

Active safety or AS must be “in place”. In other words, the body must have properties that prevent accidents

Thus, good visibility must be ensured, visibility in all weather conditions, the driver of the car must be protected from dazzling, a comfortable fit, good heat treatment and much more are of no small importance; Passive safety is also of great importance. In this case, we are talking about the high strength of the interior and its parts, minimizing the consequences of deformation in accidents

Safety components include seat belts, head restraints, mirrors and much more.

New body of VAZ 2109 photo

In addition, you should know that the body can be unevenly strong. This means that its individual parts have different degrees of rigidity. What does this give? Different resistance to impact in an accident. The front and rear of a car generally have less resistance than the middle section.

VAZ 21099 sedan body

Now in detail about the “body assembly”. The interior of such a body must have free access to ventilation. The latter must be provided artificially and naturally. This means that air must enter simultaneously through the heating system (air supply) and through the door glass.

Types of luggage racks

Since three bodies of the Lada Kalina have standard holes for attaching luggage accessories, this means that we can safely distinguish two designs:

• Railings with add-on crossbars and accessories;
• Cross members to factory installation locations.

Well, of course, there are also drivers who only have a universal trunk with a door arch mount. But they haven’t heard about the other models. This is a phenomenon of the owner of Lada Kalina. This means that a universal trunk for them exists and is called third on the list. But they need to keep in mind that the collapsible version of the universal luggage rack is equipped with a trapezoidal platform equidistant from the center of the support. Over-tightening the support bracket will result in strong pressure from the platform on the body. Since the Lada Kalina has a weak corner profile, a dent is possible. Trying to understand the issue is a bit like intimidation. But that's not true.

To date, AvtoVAZ has produced three different bodies:

1. Sedan.
2. Hatchback.
3. Station wagon.

The station wagon has an elongated flat roof, while the sedan and hatchback have a different length and radius. If we correlate the information with the roof rails, then the body type assumes a specific model of the arch. It won’t fit from a station wagon to a sedan, just like from a hatchback to a station wagon. The issue of crossbars is more acute. After all, there are three ways at once:

1. A simple stand in standard places. This is a tire made of one three-millimeter steel sheet with two holes for bolts, bent to fit the corner of the roof. At the end there is supposed to be a square hole for a square cross member, and it is known to have poor aerodynamics and whistle at speed.
2. Universal non-removable mount. Most have a short catch angle and a thrust pad standing almost next to the center of pressure. Everything would be fine, but then why would there be “original” mounting holes?
   The universal dismountable mount is mentioned above. Its platform puts too much pressure on the roof.
3. The third option is when the car is equipped with roof rails.
   All that remains is to find the cross members with transitional fasteners for the roof rails. Station wagon Lada Kalina with roof rails

It’s worth resorting to statistics:

• On average, a sedan is equipped with cross members on standard or universal racks. Car enthusiasts are not afraid of noise at speed and dented roofs.
• The hatchback design has better roof rails. If a factory option is not declared, then car enthusiasts search and find a model. Then cross members with adapters are made. By the way, aerodynamic wing-shaped cross members will reduce air resistance from the double structure (rails plus cross members).
• That's why the station wagon is named that way. It is equipped with rails, standard and universal accessories.

Cross members on the roof of a Lada Kalina station wagon.
The owners, in their desire to help the AvtoVAZ concern, are groping for the right path, and the manufacturer reciprocates. We are talking about an optimal trunk with pre-installation of roof rails in their standard places. It is not for nothing that a set of longitudinal bars, if necessary, is ordered immediately from the factory. Some lucky motorists guess, buy roof rails, and then equip them with crossbars and accessories. They look more beautiful. But there are common excuses for those who do not agree with this state of affairs:

• The car is getting taller.
• The noise is louder.
• Aerodynamics suffer.
• The roof with roof rails is difficult to clean.
• The paintwork is destroyed.
• Expensive.
  Roof rack with crossbars and mounts for transporting skis on the roof of Lada Kalina

Therefore, reasonable arguments are given:

• One and a half meters plus 15 centimeters is 165 cm. The average height of a person is 175-180 cm. This is not high.
• Wing-shaped cross members reduce noise.
• Any equipment for railings can be quickly removed. Cross members too. Aerodynamics will return to their original values. And the roof rails themselves are already being developed to be aerodynamic.
• The roof with roof rails can be washed easily both in a car wash and by hand.
• The armored film will protect the paintwork.
• Rails allow you to change luggage racks depending on the purpose. Adjusting the distance between the crossbars allows the driver to correctly position the load.

Product delivery options

Note! Below are the shipping methods available specifically for this product. Payment options may vary depending on the shipping method. Detailed information can be found on the “Delivery and Payment” page.

Parcel by Russian Post

Available payment methods:

• Cash on delivery (payment upon receipt)
• Using cards Sberbank, VTB, Post Bank, Tinkoff
• Yandex money
• QIWI
• ROBOKASSA

Shipping throughout Russia. Delivery time is from 5 to 12 days.

Parcel by Russian Post 1st class

Available payment methods:

• Cash on delivery (payment upon receipt)
• Using cards Sberbank, VTB, Post Bank, Tinkoff
• Yandex money
• QIWI
• ROBOKASSA

Shipping throughout Russia. Delivery time is from 2 to 5 days. More expensive than regular delivery by Russian Post, approximately 50%. Parcel weight up to 2.5 kg

Express Parcel EMS

Available payment methods:

• Cash on delivery (payment upon receipt)
• Using cards Sberbank, VTB, Post Bank, Tinkoff
• Yandex money
• QIWI
• ROBOKASSA

Shipping throughout Russia. Delivery time is from 3 to 7 days. More expensive than regular delivery by Russian Post, approximately 100%.

Transport companies

Available payment methods:

• Using cards Sberbank, VTB, Post Bank, Tinkoff
• Yandex money
• QIWI
• ROBOKASSA

Delivery is possible to any locality where there is a representative office of the transport company. Delivery time is from 2 to 10 days. Sending large parcels is approximately 50% more profitable than by Russian Post.

Courier delivery in Togliatti

Available payment methods:

• Cash upon receipt
• Using cards Sberbank, VTB, Post Bank, Tinkoff
• Yandex money
• QIWI
• ROBOKASSA

Delivery time from 1 to 12 hours.

Pickup from our warehouse

Available payment methods:

• Cash upon receipt
• Credit, installments
• Using cards Sberbank, VTB, Post Bank, Tinkoff
• Yandex money
• QIWI
• ROBOKASSA

Pickup times must coincide with store opening hours.

Have you ever tried to open the hood of a car that is equipped with pneumatic-hydraulic stops? Until you try this, it will seem to you that this option is pure nonsense. In fact, it seems so to modern automakers, who are getting rid of under-hood stops on an increasing number of their models.

Yes, this is not the equipment that a buyer pays attention to when buying a new car, but then, when during the operation of the car you have to look more and more under the hood, the idea comes to mind to buy pneumatic-hydraulic hood stops, in particular for the Lada Priora ( VAZ 2170, 2171, 2172).

This page of the Motorring.ru online store presents not just a hood stop, but a set of stops, which consists of two pneumatic-hydraulic elements and all the necessary fasteners. Many car owners who are thinking about installing hood stops prefer double stops on the Lada Priora, since it is believed that if a pair of stops are installed, the hood does not warp, and the stops themselves last much longer.

There is partly truth in this, so if the slightly higher price does not bother you, we recommend that you install a set of pneumatic-hydraulic hood stops for the Lada Priora, consisting of two elements.

Lada Priora hatchback: technical characteristics and features of the model

Before purchasing any car, the future owner carefully studies the main characteristics. The selection of a vehicle is primarily based on its power, efficiency, and safety.

Data on new modifications of familiar models is very important. For example, for a Lada Priora hatchback, the technical characteristics will indicate the updates received, modifications to the car and advantages over analogues in a different body.

Dimensions and dynamic data of Priora hatchback

The solid hatchback has small but sufficient dimensions: length - 4.21 m, width - 1.68 m, height - 1.43 m. The internal space was reduced due to the small external dimensions, but had minimal impact on the comfort of travel for second-row passengers.

The technical characteristics of the Priora hatchback also had a slight impact on the trunk volume. In the sedan, the luggage compartment volume is 430 liters, and in the hatchback it is 360 liters.

The model is equipped with 1.6 liter petrol engines. The power plant is combined with manual or 5-speed automatic transmissions. Engine power is 87, 98 and 106 hp, the maximum possible speed is 176 (183) km/h. The technical characteristics of the hatchback indicated for the Lada Priora lead to the following fuel consumption in mixed mode: from 6.6 to 7.3 liters. The maximum figure applies to a model with an automatic transmission.

Features of operation of Priora hatchback

It is important to further study the internal features of the model before purchasing a car. For example, the Lada Priora hatchback technical characteristics, which are quite good, have a high-quality immobilizer and trip computer

The model is equipped with electric power steering, electric windows, and heated exterior mirrors. No less important car settings include:

1. Precise steering wheel height adjustment.

2. The presence of a front airbag and emergency braking system.

3. Modern climate control and audio system.

4. Headlight range control and daytime running lights.

5. Alarm and central locking.

6. High-quality seat covering with automotive fabric.

The given technical characteristics of the Lada Priora hatchback and additions refer to the “norm” configuration. The base build lacks many of these comfort and safety features.

The cost of both modifications is almost the same, so with a small additional payment you can get a high-quality and reliable car. Subsequent modifications to the base car may take too much time, although the final price will not differ.

Particularly important for domestic cars are low consumption and cheap maintenance. The technical characteristics of the modern VAZ Priora hatchback model ensure minimal costs for vehicle diagnostics and repairs: maintaining the car in full working order is not difficult.

If necessary, the interior and exterior can be modified depending on the purpose of use. In its normal form, it can be used for family trips, daily commutes to work, and safe travel.

priorapro.ru

Options and prices | auto - official dealer of Lada in Khmelnitsky

Features of the bodies of “Ladovo” models

ATTENTION! A completely simple way to reduce fuel consumption has been found! Don't believe me? An auto mechanic with 15 years of experience also didn’t believe it until he tried it. And now he saves 35,000 rubles a year on gasoline! Read more". Since we started with QOL, let’s continue this topic

For the frame of Ladovsky models without glued glass, the quality of life is 14 thousand N*m/degree, which is a very good mark. And with glass this figure is even higher

Since we started with QOL, let’s continue this topic. For the frame of Ladovsky models without glued glass, the quality of life is 14 thousand N*m/degree, which is a very good mark. And with glass this figure is even higher.

The testing of the Lada body in the rear turned out to be especially good. Thus, in the rear door opening, after a tough diagonal pressure test, the changes were recorded as only 1.5 mm, whereas on most foreign cars the same figure was 5-6 mm.

The body design of the Lada Largus and other similar models fundamentally complies with current European standards in terms of protecting passengers and the driver. The front subframe on Ladovsky models is one of the most important body elements responsible for this indicator. It is even considered an auxiliary spar, significantly increasing the strength of the body, as well as absorbing impact force.

The high quality of life of the Ladovsky body also has a beneficial effect on obtaining high-quality sound comfort in a car showroom. The frame does not twist over bumps and bumps, no deformations or anomalies occur between the interior and body elements, which ultimately has a positive effect on the absence of squeaks.

A lot of original parts, interchangeability of interior elements between Ladovsky models, enlargement of some parts of the body - all this was only a plus. In particular, the increase in some body elements led to a decrease in their number, which reduced production time and had a positive effect on performance.

Lada Largus

Called a budget station wagon with increased cross-country ability. The body was assembled based on Dasia/Renault Logan. The car was initially adapted for the market of Eastern European countries.

Even in the basic version of Logan, engineers took effective measures to enhance anti-corrosion protection, using protective inserts for the wheel arches. In addition, anti-corrosion and anti-gravity protection is installed over larger areas than before (at Samarov’s vehicles), with a thicker layer of mastic.

Here are some more innovations:

• The engine compartment is well protected. Additional protection was used correctly;
• The front suspension reinforcement has been increased. This was achieved through the use of leverage;
• The washer reservoir has become larger and holds more fluid;
• The wheels received protective aprons;
• The change got a torpedo;
• The bumper and radiator grille have been modernized.

How body geometry is corrected

Repairing the body of a VAZ 2115 is a rather complex process that should be performed exclusively by professionals and in specialized centers:

1. And before starting repair operations, the technical center personnel will have to inspect the car. It is carried out in order to identify all defects and draw up a further action plan. Technology can also take part in the diagnosis;
2. Next, tin work will be carried out. Their goal is to dismantle all body elements that will not be involved in repairs;
3. Next comes the time of tin work. At this stage, the body parts will undergo straightening, after which various major defects will be removed;
4. The next step is to level the surface of the car body. This operation is carried out using putty. After its layer hardens, it will be polished;
5. Then the vehicle will be prepared for painting;
6. Then the painting itself will be done;
7. After the paint has dried, an additional layer of varnish will be applied on top, which will be polished after it has hardened.

The VAZ-2115 body has replaced the 21099 body, quite popular among Russian consumers, but seriously outdated. The general features of the predecessor can be easily seen in the newer model.

Let's look at what the design of a bearing puller is

A bearing puller is a device, usually made of steel, consisting of several claws and a metal rod. This type of tool is used to firmly grip the bearing in order to remove it. The bearing removal process occurs due to tightening force. The ease of operation of the puller and the absence of the risk of injury depend on the quality of the design.

Types of mechanical pullers:

1. Pullers with two gripping arms.
2. Pullers with three gripping arms.
3. Internal pullers.

Pullers with two gripping arms are a fairly simple and reliable mechanism. Made from high strength steel alloys. Allows you to easily control the work process.

Pullers with three claws are the same pullers with two claws, but improved. As a rule, they are made of hard alloy tool steel.

Internal pullers are used to remove coupling shafts when the part is firmly attached to the structure.

There is also another unofficial type of puller - this is a special one. As a rule, it is used to remove generators, cylinders, and motors. These pullers are exclusive, made to your specific dimensions. This is the main advantage of such a product; you can be sure that the puller one hundred percent fulfills its promises.

Today we will look at how to make a reliable and, most importantly, simple puller that will help you out in difficult times. For this we need:

• A piece of thick pipe.
• Steel plate.
• Nut, bolt.
• Dye.
• Kernel.
• Welding machine.
• Bulgarian.
• Drill.
• Lathe.
• Sanding disc.

Body of Lada Largus / Lada Largus

Body parts: 1 – left luggage compartment door; 2 – right luggage compartment door; 3 – rear bumper; 4 – right side window of the rear compartment; 5 – right rear door; 6 – front door right; 7 – hood; 8 – outside rear view mirror; 9 – right front wing; 10 – front bumper

The Lada Largus body is a one-piece welded structure. It is welded on a robotic line. All body parts that are prone to corrosion are galvanized. The main method of connecting body parts to each other is resistance welding, and electric welding is used in hard-to-reach places. All welds and joints of parts are coated with mastic. When making a body, after connecting its main parts, it is immersed in a special bath with an anti-corrosion compound. Then the primer and paint coating are applied. Hidden cavities are treated with a wax auto-preservative, and the bottom is covered with anti-corrosion mastic.

The body is designed taking into account the most advanced requirements for passive vehicle safety. One of the most important elements of passive safety is the front subframe, which has the property of redistributing impact energy. Car bumpers are made of impact-resistant material that absorbs impact energy. The car doors have metal stamped reinforcements in case of a side impact.

Due to the fact that the body has a very rigid structure, and the plastic interior parts have a gap between each other and are secured with special fasteners, there is virtually no vibration noise in the cabin (the so-called “crickets”).

The LADA Largus windshield is three-layer, it is glued into the body frame and is part of its load-bearing structure. All other car windows are tempered. The side door windows are sliding and, depending on the configuration, have either a manual or electric drive.

The side windows of the rear compartment can be opened slightly (7-seater version).

The luggage compartment doors can be opened completely, or up to two fixed positions provided for this, which is very convenient if the car is in a cramped loading/unloading space.

A modification of the car called LADA Largus Cross has unpainted black front and rear bumpers, as well as protective covers on the wheel arches and sills made of black plastic.

About choosing paint to match the body color

Theoretically, the paint can be selected according to the code that is indicated on the nameplate on the car or is stamped by the VIN code. However, very often the resulting color differs significantly from the body color. This is due to two factors: production features and the abundance of color matching systems (programs). The problem is that there is no uniform production of paint of certain shades. At automobile factories, the desired tone is obtained according to a certain recipe: a package of pigments is added to a barrel with the main color. For each batch of machines a new batch is made. And just as parts can differ from each other by a tolerance, so paints also vary slightly in shade.

At a car plant, you won’t find two barrels with a 100% color match—even cars from neighboring batches have different colors. Factory-prepared paint is not supplied to the secondary market, and during body repairs at any service center you have to select the tone. There are color matching systems for this.

largus-mcv.ru

How to remove the side window of the rear door on a Priora

The first step is to remove the door trim. The link above describes the procedure for the front door, but the back door will be even easier. After this, unscrew the two bolts securing the glass to the window regulator, as shown in the photo below.

Then unscrew another bolt that secures the gutter along which the glass runs. It is located on the far left side (if you look at the left door):

Then you can tilt the glass so that one edge is down:

We lower one edge down as much as possible, and thereby the upper corner as far up as possible, so that it looks like this.

Now, overcoming the resistance of the velvet covers (they do not need to be removed), we pull out the glass from the inside of the door for its subsequent replacement.

We finally take it out, and you can already replace it with a new one.

Of course, if you buy new glass in a store, then there will be no metal clip on the bottom to which the window lifter bar is attached. In this case, you will have to rearrange it yourself, carefully releasing this clamp, and then install it on the new glass. This procedure is not pleasant, so the ideal option is to buy used glass at a dismantling station, with the year of manufacture you need (this is not a problem to find) and in a condition even close to new.

Regarding the price. A new one costs from 450 for BOR white, and from 700 for BOR green, that is, athermal. But, as mentioned above, the original BOR with green stuff can be bought at a disassembly site for 300 rubles.

1. Remove the front door trim (see “Removing and installing the front door trim on a VAZ 2170 2171 2172 Lada Priora”). 2. Pry the inner glass seal from the inside, smoothly pulling it up...

3. ... remove the seal.

4. Pry off the outer glass seal from the inside...

5. ...and also remove the seal.

6. Lower or raise the glass so that you can access the glass frame mounting bolts through the top hole of the door. Remove the two bolts securing the glass frame to the window lifter slider.

7. Remove the glass from the front door by lifting the back part.

8. Install the glass in the reverse order. When installing, make sure that the glass fits into the guides on both sides. Check that it is easy to move.

Removing the rear door glass on a Lada Priora car is carried out to replace it in case of damage to the glass itself or the clip of its attachment to the lift mechanism, as well as when carrying out other work in which the presence of glass will interfere with the progress of their implementation. Prepare a standard set of tools, remove the decorative door trim and perform the following sequence of actions:

Remove the decorative trim of the rear door.

Now you need to remove the glass seals from the inside and outside. To remove them, pry up the edge with a small flat screwdriver or by hand (if they come off freely).

• We lift the glass up so that the bolts securing it to the lift holder are opposite the technological hole and they can be unscrewed. We unscrew them and remove them.
• Lifting the front part of the glass, remove it from the door niche.
• Carry out the necessary repairs or replacement, then install in the reverse order.

At this point, the repair work on removing and replacing the rear door glass on the Lada Priora has been completed.

Sources

• https://priora-remont.ru/zamena-stekla-zadnej-dveri/
• https://www.autosecret.net/kuzov-vaz-2170-2171-2172/door/493-zamena-stekla-perednej-dveri-na-avtomobile-vaz-2170-2171-2172-lada-priora
• https://zubilovaz.ru/lada-priora-zamena-stekla-zadnej-dveri

How to check the geometry of a car body

The opinion that the absence of deviations in the car's wheel alignment indicators can serve as confirmation of the correct body geometry is erroneous. Body diagnostics is a separate procedure that requires special stands and stocks.

Using such devices, using control points, you can check the conformity of the dimensions and diagonals of the engine compartment, trunk, doorways, as well as the distance between side members, reinforcements, load-bearing body parts, etc.

There are three options for checking body geometry:

• Carrying out measurements of distances between control points. This type of diagnostic allows you to quickly check the correctness of the geometry both before starting repair work and during its implementation. Such measurements are carried out using a regular tape measure or a special ruler.
• During comparative measurements, the correspondence of the distances between symmetrical points located on opposite sides of the body is analyzed. This type of test is distinguished by its versatility and ease of diagnosis of body damage. As a rule, experts compare the length of the diagonals between symmetrical points of the body. In this case, you can compare the measurement data on the damaged and intact sides of the car.
• In three-dimensional measurement, the spatial location of control points is determined in relation to the base planes of the body. For such diagnostics it is necessary to have special equipment.

During the measurements, a specialist can determine the extent of the main damage, determine the presence of minor defects and outline a plan for restoration work.

To measure the geometry of the body, measuring rulers are used or stationary equipment is used, a slipway, which allows you to check the distances between control points using special marks or electronic beacons.

To do this, the car is fixed on a platform using chains and measuring sensors are hung on certain points of the body. Quite often, craftsmen are faced with a situation where control points are hidden under the skin of body panels, under bumpers, under protective elements, so they have to partially disassemble the body to provide access to hidden places.

In order to restore the original parameters of the body geometry, straightening work is carried out in a car service center. This is a rather complex and multi-stage job that must be performed by qualified craftsmen who have the appropriate education, experience and a good feel for metal.

Garage specialists can tell you that they can easily restore your car after an accident using a special certified line. But such assurances should not be trusted. Without equipment such as a slipway, the geometry of the body after a serious accident cannot be fully restored. Cars repaired in artisanal conditions, as a rule, have deviations in body geometry.

We have already noted earlier that body diagnostics using control points should be carried out at least once a year or every 30 thousand km. mileage

If the car service is not equipped with special stands, then a body repair technician can use a ruler to measure the geometry of the body, but this is not a very reliable method, which can give an error of about 5 millimeters in one direction or another.

On the slipway you can measure the dimensions of such body elements as:

• luggage compartment opening;
• engine compartment;
• front and rear side members;
• window openings;
• doorways;
• sections of the front, middle, rear of the car.

To straighten the car frame, auto repair shops use hydraulic equipment and vacuum suction cups.

Complete restoration of body geometry (correction after serious accidents) can be carried out by stretching, but only if the metal has retained its characteristics.

Diode pointers are used for computer body diagnostics. This device allows you to perform all the necessary measurements without disassembling. For diagnostics, the machine is installed on a stand. The computer program will take all the necessary measurements and apply them to a virtual template of a specific car model. Such a check takes about 10 minutes, and the owner of the car receives a printout of the body with marked problem areas. The permissible error of such diagnostics is within 5 mm.

Tools

Before moving on to the direct instructions for repairing the VAZ 2109 body, I would like to dwell on choosing the right tools. Every professional, master of his craft will confirm that a good tool is half the successful completion of any repair operation.

So, the list of necessary tools for body repair of the “nine” is quite wide, since the work is by no means simple and will require a considerable number of specific instruments:

• Special hammers are required, at least 3 types of them with different sizes for straightening work;
• A grinder with mounted circles (you need different discs that perfectly remove paintwork and rust);
• It is advisable that the garage have a carbon dioxide cylinder (about 10 cubic meters);

VAZ 2109 body repair and tools

• Without welding during body work, it’s like having no hands (it’s better to choose a device with a maximum current of 150 A);
• Good chisels with hardened tips and several similar metal drills;
• Lift (it is better to have 2 jacks);
• A good metal brush (you will need it to clean rusty areas of the body);
• A standard set of motorist tools (keys, screwdrivers, etc.).