Soundproofing of all parts of the VAZ 2107, step-by-step instructions

The factory sound insulation of the VAZ 2107 is not far removed from the FIAT of the 60s, which became the prototype of the “penny”. Noises in the car make it difficult to talk and enjoy music while driving. The comfort of the “Seven” can be significantly improved by reducing the noise of the external environment and vehicle components, which is heard in the cabin while driving.

Purpose of sound insulation

Additional sound insulation reduces the noise of the engine, suspension, chassis and reduces vibrations that occur during operation of car components. Thanks to this, in the interior of the “Seven”:

you can talk without raising your voice;
you can enjoy music without noise interference;
The overall noise level is reduced, which improves driver concentration and response.

Consequently, sound insulation of the VAZ 2107 provides additional safety and reduces the harmful effects of noise on the nervous system.

Selecting material for work

Soundproofing a VAZ 2107 is a simple process, but quite expensive both in terms of finances and time. In order not to waste time, you can entrust car noise reduction to professionals, but you will have to pay decent money for the work. The best option is to carry out the procedure yourself, for which you will need to stock up on basic materials for the work, as well as tools and patience.

Soundproofing materials today are replete with variety. They differ not only in cost and appearance, but also in the quality parameters of suppressing external noise and vibration. Some are designed to reduce vibration, while others are designed to reduce noise. The best option for noise reduction of a VAZ 2107 car is products from brands such as: StandardPlast (STP), Shumoff and others. In this article we will consider the process of gluing Shumka using STP materials.

The advantage of materials of these brands is that they meet all noise insulation requirements and have a relatively low cost. The materials can be either universal, but you will need to cut the product into pieces, or special ones for each brand of car. This is very convenient when you don’t want to cut out the noise insulation of the hood or doors into pieces. But such options are more expensive than universal ones. Having purchased the basic material, you can begin to work. Let us consider in order the features of noise reduction of the main components of the VAZ 2107 car.

Hood

It is recommended to glue a ready-made set of Shumkas about 3 cm thick with a foil coating onto the hood of the “Seven”. It's easy to find at the car market. Why is it necessary to tape the hood? This is done, first of all, to keep the engine warm and quickly warm it up in winter, and to some extent it reduces the noise level coming from a running engine. The hood is glued between the ribs, so you will need to aim carefully while working.

Soundproofing the hood of the VAZ 2107 is based on the following procedures:

Using a degreaser, such as white spirit, you need to degrease the surface on which the material will be glued. Surfaces that are heavily soiled or oily should be cleaned first.
In the cold season, it is necessary to warm up the adhesive side of the product using a hair dryer. This procedure is mandatory, since the effectiveness of adhesion depends on the quality of heating.
After warming up the sound insulation sheet, you should remove the protective layer from the adhesive side, and then glue the product to the hood from the inside.
For high-quality gluing, you will need to use a roller or press well with your hands.

Ceiling

Considerable importance should be given to the roof, or more precisely, the ceiling of the VAZ 2107. Layers of Vibroplast are glued to the ceiling in order to reduce noise from outside and vibration. After this procedure, claps on the roof will be heard in the cabin, but as a dull sound. Rain hitting the roof will be practically inaudible for passengers and the driver.

There is no special kit for car ceilings, but there is no need for it. After all, after pasting, the ceiling is covered with a special decorating material. The most effective material for roofing is Vibroplast Gold, so it’s better to stick with it. The process for gluing the ceiling is as follows:

Try to cut the material according to the size of the gaps between the roof reinforcements, that is, you should initially measure them, and then cut the sheet.
You can glue both along and across the ceiling.
If there is standard insulation, it should be removed, and then the metal should be degreased.
There are corresponding joints between the amplifiers, which are recommended to be additionally treated with sealant.
Pasting the ceiling on your own is not very convenient, so take advantage of additional help.
It is also recommended to preheat the material with a hairdryer (in cool weather).
The first layer is a vibration-insulating material that is glued to the ceiling, and the second layer is a sound-heat-insulating material (for example, “splen”).
It is imperative to properly smooth the first and second layers of material, since not only the quality of fastening, but also the efficiency of noise reduction depends on this.
Splen can be applied in one or two layers. After pasting the last sheet, it is necessary to return the decorative ceiling material to its place.

Features of the use of soundproofing materials

For sound insulation, you should use specialized materials intended for use in a car. Using building sound insulation or, for example, sweatshirts will not give the desired effect and can cause harm. For example, the fire safety of the interior will deteriorate or the material will begin to absorb moisture, leading to corrosion of body elements.

Particular problems are caused by filling body voids with polyurethane foam. This homemade method helps to achieve a significant reduction in noise in the cabin, eliminating vibrations. However, polyurethane foam perfectly absorbs moisture, forming a humid environment in the sills and other cavities of the body. Accordingly, the metal quickly rots and body parts require unscheduled replacement.

The order and method of placing soundproofing materials is of great importance. Violation of technology will not allow you to get the desired result, regardless of the quality of the materials used. They are stacked in the following order:

The first layer is a material that absorbs vibration from the metal elements of the body.
The second layer is a sound-reflecting and sound-absorbing material. The first is located outside in the area of the wheel arches and engine. The sound absorber is used inside the cabin.
A third layer of sound insulation - anti-creaking material - is placed under the trim elements and the dashboard.
The fourth layer can be a decorative coating, if necessary. It gives a complete and aesthetic appearance to the completed work.

Ceiling

This type of noise eliminates crickets and reduces the amount of noise coming from outside. It is not difficult to carry out sound insulation on a VAZ 2107 with your own hands, and the result will exceed your expectations.

Soundproofing the ceiling of VAZ 2107

After completing the work, you will not hear a loud knock hitting the roof from above, plus falling drops of water during rain will not be so annoying. This will have a positive effect on the driver’s peace of mind and comfort.

Alas, there are no special kits for quieting the ceiling. Experts recommend buying Vibroplast Gold. There are also worthy alternatives - Silver or Splen. Choose the latter with a thickness of 8 or 4 millimeters.

Cut the leaf element in place.
Pasting is carried out in a single sheet. Do not cut it into separate parts.
The width of the rolls of the sold material almost perfectly matches the width of the car roof. Therefore, you will have to cut it into rectangles.
The length is adjusted according to the distance between the roof reinforcements.
It is better to remove the standard sound insulation, since it is of little use.
Clean bare metal areas, degrease and dry.
There are joints between the amplifiers that need to be treated with sealants.
Glue a layer of material. It is impossible to do this work with only your two hands, so you will definitely need an assistant.
One person heats the soundproofing material with a hairdryer, and the second rolls it onto the surface with a roller, first placing it on the glue.
After the vibration damper layer comes Splen. It is laid in a continuous sheet, starting from the windshield.
There are some uneven spots on the roof. In these areas, the material is heated and stretched to the required parameters.
There can be 1 or 2 layers of Spleen. It is not recommended to make a layer too thick, since after Spleen you will need to return the factory Shumka to its place. After this, return all dismantled elements to their place.

Article on the topic: Location of all sensors on the injection VAZ 2114

Required Tools

To install soundproofing you will need the following tools:

rags;
solvent;
set of screwdrivers and keys;
construction hair dryer;
roller for rolling sound insulation sheets;
cotton mittens;
cardboard for patterns;
spray bottle for applying liquid sound insulation to the bottom;
soundproofing materials.

Soundproofing a VAZ 2107 is a labor-intensive job and will take a whole day to complete. It is better to carry out the work in the garage so as not to depend on weather conditions and protect surfaces from dust and contamination.

general information

Before you start soundproofing doors, it is advisable to familiarize yourself with the general rules:

The first layer must be vibroplast.

Note. The choice of vibration-proofing material depends primarily on the following. Doors, as you know, are not as loaded with various vibrations as the engine compartment or the bottom of the car. For this reason, the front speaker is often placed not forward or on the floor, but on the door. But the resonant sounds of metal remain, and without proper sound insulation, this is impossible. In a word, if the doors will not be used as a place for speakers, then vibration isolation is selected in the usual version; if used, in a special kit.

In any case, Technoplast M1 or M2 must be applied to the inside of the door, the one on the street side. The entire surface of the door is 100 percent covered with this material.

Attention. During the gluing process, we must not forget about the ventilation and drainage holes, which must be left open.

Pasting the side of the door closest to the interior depends on the specific material chosen.

Sound insulation of doors 2107 VAZ

Note. As mentioned above, if acoustics are not installed or the speakers are small, it is enough to vibration damp the flat areas with Techno Bomb elast or Technobit MP elast. If powerful speakers are installed, then pasting is carried out on the entire surface of the door, using the same materials, including closing the technological holes.

Before carrying out work, it is necessary to check the functionality of all components of the lock and window regulators. If something doesn’t work right, then the time has come to replace and fix everything, add lubricant, tighten fasteners, etc.

Note. Closing the technological holes in this part of the door has a special purpose. The door turns into a kind of closed box, which has a very good effect on the acoustics and its sound in the car interior.

On top of Technobit there is a layer of Shumka;
Carrying out sound insulation (see Sound insulation of a car interior on your own) is also divided into stages: first, the door is covered with 7 mm Technoplast. If you intend to install powerful speakers, stick a 5-10 mm Spectrum circle on the surface of the door that is closer to the street, preferably 30-50 percent larger than the holes for the speakers. In this case, greater emphasis is placed on absorbing reflected waves from the speaker system so that they do not in any way affect the speaker driver. As for the technology of pasting soundproofing material, it is installed in a single sheet.

Soundproof doors

Note. The interesting thing about door trim is that it can be used as an acoustic shield. To achieve this, pieces of Technoplast M1 are glued to the back side, but if the skin of the VAZ 2107 consists of several pieces, then the material is glued at the joints and at the joints.

Preparatory work

First you need to decide on the procedure for soundproofing parts of the car (trunk, interior, hood, etc.). This is followed by:

purchase the necessary materials (they can be purchased in sets for each part of the machine or per meter, having previously calculated the required quantity);
prepare a set of tools;
make cardboard patterns (if the materials are purchased by the meter and not in ready-made kits);
disassemble the insulated area down to the metal, removing the trim elements, dashboard, and other parts that impede work;
wash the surface thoroughly and dry;
clean and treat areas of corrosion;
degrease with solvent.

Step-by-step instruction

So, below is a step-by-step algorithm for performing the operation. It won’t take much time and everything will go well if you follow these instructions clearly, without doing anything on your own.

Removing the upholstery

To easily remove the upholstery from the door of a VAZ 2107 and thereby prepare the surfaces for gluing with soundproofing material, do the following:

Door trim and removal

Main process

Advice. It is not recommended to degrease the very bottom of the door surface. The fact is that anticorrosive prevents rotting, and it is in this part of the door that moisture collects. If we degrease this part of the surface (remove the anticorrosive), then there will be no protection and the door will soon rot.

Convenient rolling roller

Fastening the upholstery

The upholstery can be mounted on screws rather than on pistons. Here's what to consider when doing this:

Self-tapping screws for metal

Note. By the way, you don’t have to use plugs in the lower part of the upholstery, because they won’t be visible there anyway.

Metal screws with decorative plugs

The technology for screwing in self-tapping screws is conventional:

Note. The upholstery is attached with self-tapping screws so that squeaks disappear. But to completely eliminate the squeak, this will not be enough. Below are some helpful ways.

Sound insulation of the trunk and hood of the VAZ 2107

The opinion that sound insulation of the engine compartment is necessary only for the comfort of others is false. It performs several important functions:

reduces metal vibration;
muffles the engine sound penetrating into the cabin;
improves thermal insulation and prevents the engine from cooling quickly in winter.

Soundproofing the trunk is important for the following reasons:

improves the sound of the subwoofer (if equipped);
dampens external sounds penetrating into the cabin;
reduces vibration noise during operation of the acoustic system and movement of the machine;

In the engine compartment, sound insulation should begin with the engine compartment panel. To increase the elasticity of the “vibroplast”, it must be heated with a construction hairdryer before laying. After laying it, the surface must be rolled with a roller to remove air bubbles, which reduce the effectiveness of the insulation and can cause corrosion of the body. “Splen” must be glued on top of the “vibroplast”.

The hood and trunk lids are insulated in the same way, with the difference that the “vibroplast” is not laid over the entire area, but only between the stiffening ribs.

The wheel arches in the trunk require additional sound insulation. For this, an additional layer of sound insulation is used.

Sound insulation of VAZ 2107 doors

The vibration and noise insulation coating on the doors improves the sound of the built-in speakers, eliminating resonance, and prevents street noise from penetrating into the car. The isolation procedure is as follows:

stick “vibroplast” onto the door panels;
stick the second layer “Accent”;
wrap the rods with “Madeline” to eliminate squeaks;
cover the outer layer of the doors with “vibroplast”;
seal the technological holes with “bitoplast” or foil;
glue the door trim on the inside with “Accent” to improve sound absorption and fit of the part.

Soundproofing of the VAZ 2107 interior

Before soundproofing the interior, you should make sure that components and assemblies that can create additional noise are in good working order. Sound insulation of the VAZ 2107 interior is carried out so that vibration and sound insulation materials do not cover the mounting holes.

The procedure for soundproofing the interior:

remove the seats;

remove the dashboard;
remove floor and ceiling coverings;
wash surfaces;
clean and treat corrosion areas;
degrease with solvent;
stick a layer of “vibroplast” on the roof, then “Accent”;

Tip: you need to glue the roof with an assistant, who helps warm up the material and holds it while rolling with a roller.

stick on the arches, in addition to the “vibroplast”, a double layer of “Accent”;
lay “Bimast Super” on the floor;
cover the floor with “Accent”;
stick “Accent” on the inside of the dashboard;
cover the body partition under the dashboard with “vibroplast”;
stick “Madeline” in places where the dashboard touches the body to prevent squeaks.

Doors

Sound insulation on the doors of VAZ 2107 cars is necessary in order to reduce the level of noise coming from outside, as well as improve the sound quality of the audio system.

Sound insulation of VAZ 2107 doors

The insulation kit contains only vibration damping material, but it would not be amiss to treat the surfaces with noise absorbers.

The first layer of processing is carried out through technological holes. Vibroplast Silver has proven itself excellent here.
First, treat the areas behind the speakers.
The second layer is Splen 4 millimeters thick.
Now tape the outside of the doors under the cards. Use an audiophile. It is necessary to completely seal the technological holes, which will seal the volume of the doors where the speaker is located.
Applying a vibration filter will increase the rigidity of the door, which will make the acoustics sound better.
The outer sides are covered with vibroplast, and a layer of Spleen is applied on top for sound insulation.
It would be a good idea to treat the door cards with anti-creak. Thick Bitoplast is suitable here.
Crickets inside the doors will also make themselves felt over time, so immediately additionally cover the rods and handles with Madeleine.
Don't use too thick a layer of insulation, otherwise you simply won't be able to secure the cards back together properly.

If you examine the standard sound insulation on the floor of a VAZ 2107, you will find a bitumen-based vibration damper no more than 3 millimeters thick, and a standard noise insulation of 7-10 millimeters. Moreover, more often than not, they were not laid very well, which affected the comfort of the driver and passengers.

Soundproofing the floor on a VAZ 2107

So that you are not bothered by all the pebbles that hit the bottom when moving, you will need to perform the noise yourself.

This area opens up enormous opportunities for creativity and the use of all kinds of materials. Some use sheet insulators, others use mastics based on rubber and bitumen.
The advice of experts is to use Bimast Bomb as a vibration damper, and make Shumka from Spleen.
Pay special attention to the processing of the inner wheel arches. They will require 2-3 layers of the thickest insulating material.
Thick sheets of Splen are not very convenient to lay, so it is better to use thin material and apply it in 2 layers, without leaving gaps.

Sound insulation of the bottom of the VAZ 2107

External underbody sound insulation reduces tire noise and rock clatter while driving. For this purpose, you should use liquid sound insulation, which is applied with a spray bottle. After drying, it is foamed rubber and performs anti-corrosion and soundproofing functions.

Thanks to the spray application, such sound insulation can be easily and quickly applied in hard-to-reach places. Its weight is significantly lower than that of sheet material, vibration and sound insulation properties are no worse, and the price is only slightly higher.

After applying the soundproofing coating, it is necessary to carefully assemble the parts. Loose tightening of threaded connections, broken clips and other assembly defects can neutralize all efforts to reduce the noise of the “seven”.