Bolts for fastening the front shock absorbers of the VAZ 2107

The suspension on VAZ cars of the classic family has certain features and differences from the suspensions installed on modern car models. The design of the suspension on Zhiguli cars has an archaic and heavy design, which inevitably affects the quality characteristics of the stability and controllability of the car. In this connection, there are certain nuances associated with the installation and adjustment of shock absorbers on rear-wheel drive VAZ models.

Due to the design features, the front shock absorber mount on the VAZ 2107-2101 “Classic” is a separate part. The rear dampers on the classics and their fastenings are completely installed on the dependent axle, which negatively affects the stability of the car. That is why it is extremely important to pay attention to the adjustment of shock absorbers and subject the suspension to timely repairs and maintenance.

replacing the front suspension shock absorber on a VAZ 2107

The shock absorber on a VAZ 2107 should be replaced if there is fluid leakage from it or loss of the ability to dampen vibrations, deformation of the rod and destruction of the silent blocks.
Shock absorbers on a VAZ 2107 car should be replaced in pairs, even if one of them is working. Front suspension shock absorber mounting parts for VAZ 2107

1 — shock absorber bracket (2101-2904170); 2 — bolt M10X1.25x50 (11343830); 3 – silent block (rubber-metal hinge) of the shock absorber (2101-2905448); 4 — shock absorber (2101-2905402-05); 5 — spring washer (10516870); 6 — nut M10x1.25 (12164721); 7 — washer (2101-2905455-01); 8 — bushing (2101-2905542-20); 9 — shock absorber cushion (2101-2905450); 10 — spring washer (10516870); 11 — nut M10x1.25 (12164721)

Removing the front suspension shock absorber from a VAZ 2107 car

1. We install the VAZ 2107 car on an inspection hole or overpass (see “Preparation of the VAZ 2107 car for maintenance and repair”).

2. Through the technological hole in the mudguard of the VAZ 2107 car, use a 17 mm wrench to unscrew the nut of the upper shock absorber mounting, holding the rod from turning with a 6 mm wrench.

3. Remove the spring washer, the cushion washer and the upper shock absorber mounting pad from the shock absorber rod.

4. Using a 13 mm socket wrench, unscrew the two nuts securing the shock absorber bracket to the lower arm of the front suspension.

5. We take out the shock absorber down through the hole in the lever.

6. Remove the lower cushion from the shock absorber rod.

7. Using a 17 mm socket wrench, unscrew the nut of the bolt securing the shock absorber to the bracket, holding the bolt from turning with a wrench of the same size.

8. Having removed the bolt, disconnect the shock absorber from the bracket.

When the shock absorber pads wear out, replace them.

Installing a front suspension shock absorber on a VAZ 2107 car

1. Installation of the shock absorber on a VAZ 2107 car is performed in the reverse order.

2. After installing the shock absorber bracket on the lower arm, put the lower cushion on the rod and extend it completely. From the engine compartment side, install bushings and washers on the rod and tighten the nut of the upper shock absorber mounting.

Similarly, on a VAZ 2107 car we replace the second shock absorber.

Source

↑ Rear suspension diagram

1 - spacer sleeve; 2 — rubber bushing; 3 — lower longitudinal rod; 4 — lower insulating gasket of the spring; 5 — lower spring support cup; 6 — suspension compression stroke buffer; 7 — bolt for fastening the upper longitudinal rod; 8 — bracket for fastening the upper longitudinal rod; 9 — suspension spring; 10 — upper spring cup; 11 — upper insulating gasket of the spring; 12 — spring support cup; 13 — rod of the rear brake pressure regulator drive lever; 14 — rubber bushing of the shock absorber eye; 15 — shock absorber mounting bracket; 16 — additional buffer for suspension compression travel; 17 — upper longitudinal rod; 18 — bracket for fastening the lower longitudinal rod; 19 — bracket for fastening the transverse rod to the body; 20 — rear brake pressure regulator; 21 — shock absorber; 22 — transverse rod; 23 — pressure regulator drive lever; 24 — holder of the lever support sleeve; 25 — lever support sleeve; 26 — washers; 27 - spacer sleeve.

Replacing front shock absorbers on VAZ 2101-VAZ 2107

Welcome! Car shock absorbers - how the car will behave in the future on smooth and uneven roads depends only on them. Over time, car shock absorbers deteriorate and therefore need to be replaced. In this article, we have written detailed instructions on how you can replace the front shock absorbers on cars of the “Classic” family.

Note! To perform the replacement, you will need the following tools: First, be sure to stock up on a set of basic wrenches and new shock absorbers. And also, if you have one, take with you a special key for removing shock absorbers; for clarity, it is shown in the figure below:

Question? Which shock absorbers do you prefer: “Gas-oil” shock absorbers or conventional “Hydraulic” ones? (Write your answer in the comments)

Summary:

When do you need to change front shock absorbers? They must be replaced if:

Loss of its properties, that is, loss of efficiency in damping vibrations.
And it must also be replaced with a new one if it starts to leak and as a result becomes oily.

Note! To properly verify whether the shock absorbers are working or not, you can read the article entitled: “Checking shock absorbers for performance”!

How to replace front shock absorbers on a VAZ 2101-VAZ 2107?

Note! Both shock absorbers are replaced in the same way, so we will show their replacement only using the example of one shock absorber!

Removal: 1) First drive the car into the inspection hole, or hang it up using a lift.

2) Now open the hood and pick up the special key (If you don’t have it, then use small pliers). Next, place a special wrench on the shock absorber rod, which is indicated by the number “1” in the photo, thereby reducing the likelihood of the rod turning along the axis.

Immediately after this, use a wrench labeled “2” to unscrew and then remove the nut, after the nut, remove the spring washer, as well as the cushion washer and the upper shock absorber mounting cushion itself.

↑ Rear suspension parts

1 — lower longitudinal rod; 2 — rubber bushing; 3 — bracket for fastening the lower longitudinal rod to the body; 4 — spacer sleeve; 5 — upper longitudinal rod; 6 - additional compression progress buffer; 7 - spring; 8 — upper spring cup; 9 — suspension compression stroke buffer; 10 — upper insulating gasket of the spring; 11 — shock absorber; 12 — lower insulating gasket of the spring; 13 - transverse rod.

Replacing shock absorbers on a VAZ 2107 car

Article: 2101-2915402С, additional articles: 2101-2905402-06, 2101-2915402

Order code: 000006

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Shock absorber VAZ-2101 rear SAAZ SB 2101-2915402SB

Connecting dimensions, mm: - maximum: 492 - minimum: 310.5
Piston stroke, mm: 181.5
Weight, kg: 1.3
Nominal forces at a piston speed of 0.31 m/s, N (kgf): - compression stroke: 283 (28.8) - rebound stroke: 1060 (108)

Mounting details for basic models:

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Today, the next article in the series “Crystal VAZs or typical breakdowns of domestic cars” is dedicated to the “classics”: VAZ-2101, 2103, 2104, 2104, 2105, 2106 and 2107. These cars have been driving along our roads for decades and, despite Despite all the shortcomings that we will talk about, their popularity is still high.

Purpose and design of shock absorbers VAZ 2107

The main purpose of shock absorbers in a car is to smooth out and absorb vibrations (shocks) from the road surface and prevent the transfer of mechanical energy to the car body. Dampers are attached on one side to the power parts of the body, and on the other to the suspension parts (levers, bridge).

The suspension arms are constantly subject to vertical vibrations, ensuring the stability of the car, so shock absorbers in this “bundle” play an important role. When shock-absorbing parts in a car wear out, part of the load is transferred to the suspension and body elements, which greatly affects the service life of the suspension.

The racks are a tubular structure of hydraulic or gas type. Smoothing of vibrations from the road surface in such shock-absorbing struts occurs due to the oil or gas located inside. The rigidity of the struts and the progress of work depend on the speed of movement of the rod in the structure, the viscosity of the oil (gas density) and the settings of the bypass valves.

How to choose shock absorbers

Choosing shock absorbers is not an easy task, since it is necessary to take into account a number of important factors that will subsequently affect the handling and service life of the car’s suspension. First of all, you need to pay attention to the following points:

type of racks (gas or oil);
length;
permissible loads;
compatibility with specific brands and models of cars.

The type of struts affects the stiffness of the suspension and its service life. Thus, gas struts are better suited for those drivers who prefer a more or less sporty ride and the most informative and “understandable” steering wheel. Installing oil-filled shock absorbers is more preferable for quiet motorists who use the car to perform everyday tasks.

Oil dampers are softer than gas dampers and provide comfort for the driver and passengers. Gas models are quite rigid, but this is a kind of payment for greater stability of the car on the road.

The length of the struts affects the vehicle's ground clearance. Installation of tuning models of struts with a lowering from -30 to -70 mm has a positive effect on the handling and stability of the car, as the center of gravity is reduced. There are models on the market with both factory length parameters and modified ones.

The permissible load indicator indicates how much the car can be loaded without compromising the condition of the suspension. As a rule, in expensive gas models this indicator is higher, which has a positive effect on the overall condition of the suspension and the service life of its parts.

Replacing front and rear shock absorbers

Self-repair and replacement of shock-absorbing parts in a car suspension is not as complicated a procedure as it might seem at first glance. However, work related to parts that affect the vehicle's handling must be carried out with the utmost care.

Tools, materials and components

To carry out work on replacing shock absorbers on classic VAZs, you will need a certain list of tools. Most at least slightly advanced drivers have these tools.

a set of open-end wrenches and/or socket heads;
adjustable wrench;
strong large slotted screwdriver;
pliers;
wheel wrench;
graphite lubricant;
WD-40 or other similar “liquid key”;
jack.

drill and a set of drills for it;
grinder (angle grinder) and cutting wheels for it;
gas-burner;
knife;
gas key;
hammer.

Removing shock absorbers

The process of removing the suspension struts does not take much time and boils down to unscrewing the shock absorber mounting bolts and pulling the part out of the retaining grooves. The main problem during removal, which most drivers of classic VAZ models encounter, is the difficulty of unscrewing the nut of the shock absorber mounting bolt.

Features of repair of shock absorber mounts

The designers of VAZ cars of the classic family did not provide for the possibility of serious loads when designing the design of the upper mounts for the rear dampers. Therefore, many car enthusiasts encounter problems when installing rear struts on the upper mounts.

The upper mounts are metal studs secured to the body cross member at the rear of the car. Over time, metal fatigue appears at the fastening points due to the constant loads from the operation of the dampers, so the metal studs often crack and break off, or the fastenings themselves fail.

To solve problems with the upper fastenings, owners of classic Lada cars often resort to replacing the studs with new ones. To do this, holes are cut out at the locations of the fasteners using a grinder and the old studs are removed.

After that, new steel pins and washers are installed in the mounting holes, and the fastening points are securely welded with a welding machine.

You can safely install new shock absorbers on new mounts and not worry about the reliability of the mounts.

Source

↑ Removing the rear suspension

Raise the rear of the car and place it on stands. Remove the rear wheels.
Disconnect the driveshaft from the drive gear flange.
Disconnect the hydraulic brake hose from the steel tube installed on the axle and take measures to prevent fluid from leaking from the brake system.
Disconnect the rear parking brake cable bracket from the body, remove the front cable release spring and, by unscrewing the locknut and adjusting nut, release the rear cable branch.
Disconnect the rear brake pressure regulator drive rod from the bracket on the bridge beam.
Disconnect the upper ends of the shock absorbers.
Place a hydraulic jack under the rear axle beam. Disconnect the longitudinal and transverse rods from the brackets on the body, lower the jack and remove the axle.