How to remove the rear drum on a VAZ 2109

CityCost for removal/installationMoscow500 rub.St. Petersburg400 rub.Ekaterinburg300 rub.Samara300 rub.Krasnodar350 rub.

Only approximate values are given here. The specific price may vary slightly, but not significantly. It all depends on the specific car repair service and its pricing policy.

Well, we have explained in detail how to remove a brake drum from a car. Moreover, we tried to cover the largest number of car brands as an example. All this should help motorists with problems with this unit.

How to remove a brake drum if it is stuck

Despite the fact that today most cars are equipped with a disc brake system, drum-type brake systems do not lose their relevance . They have been used in cars for more than a century and there has never been any doubt about their reliability. But like any brake system, they are subject to wear and tear during constant operation. Which, of course, immediately affects traffic safety. A worn part must be replaced, and in this article we will tell you how to remove the brake drum. We will present several different methods, but first we need to talk about the design of this element, its advantages and disadvantages, as well as possible malfunctions and options for eliminating them.

Removing and replacing rear brake pads and brake drums on VAZ 2108, 2109, 21099

Hello, today we will show you how to independently remove and replace the rear brake pads on a VAZ 2108, 2109, 21099. If you hear an unpleasant squeaking noise from the rear while braking, then most likely the rear brake pads have worn out and need to be replaced. Also, if the pads are worn out, the handbrake will not hold, even if you tighten it.

First, jack up the car and remove the rear wheel. Now unscrew the 2 studs on the brake drum

Unscrew the studs

Most likely the drum will not come off just like that, try screwing in bolts instead of studs and pulling it off using them. If it doesn’t work, then knock it out with a hammer from the back side through a wooden board, the main thing is not to break the edges of the drum, otherwise it will be unbalanced

Screw in the bolts and remove the drum

After removing the brake drum, remove the upper spring

Remove the upper spring

Next, remove the lower tension spring.

Removing the lower spring

Now remove the spring that is attached to the center of the brake pads and remove the front pad

Remove the spring according to src=»https://mcwheels.ru/800/600/https/nazcar.ru/images/1395319497_snimaem-zadnyuyu-tormoznuyu-kolodku-na-vaz-2108-2109-21099.jpg» class=»aligncenter » width=»450″ height=»360″[/img]Remove the block

Next, remove the expansion plate

Removing the expansion plate

Unhook the spring that is attached to the center of the rear shoe and unhook the handbrake cable and remove the shoe

Remove the spring using src=”https://mcwheels.ru/800/600/https/nazcar.ru/images/1395319448_otceplyaem-tros-ruchnogo-tormoza-ot-kolodki-na-vaz-2108-2109-21099.jpg” class=”aligncenter” width=”450″ height=”361″[/img]Remove the block

Now you need to remove the retaining pin from the rear brake pad and disconnect the plate to which the handbrake is attached from the pad.

Remove the fixing pin

Removing the plate

Install new brake pads in reverse order. If the brake drum does not fit on the new pads, then try using a file to file the edge of the drum, as over time, wear could appear there.

Element device

The rear brake drum consists of several parts :

rotating drum;
brake shoe;
spring;
brake cylinder (one or more).

Removing the drum
When braking, the brake pad rubs against the surface of the hollow drum. To ensure the mobility of the pad, the mechanism contains springs, which, depending on the position of the gas pedal, will be compressed or decompressed. A special cylinder is responsible for the correct operation of the pad and its timely operation, pressing it to the surface of the rotating drum under the pressure of the brake fluid. The entire mechanism is mounted on a shield made by stamping.

But the rear brake drum in some cases has a different device. One of the key elements of the tape structure, as the name implies, is flexible tapes made of metal. During the braking process, the belts are stretched and squeeze the drum tightly. However, this design of the braking system has not been used in cars for a long time.

Brake drum VAZ 2108, 2109, 21099

The brake mechanisms of the rear wheels of VAZ 2108, 21081, 21083, 2109, 21091, 21093, 21099 cars are drum brakes; for braking, a working pair is used: brake drum - brake pads.
How the brake drum of VAZ 2108, 2109, 21099 works

The brake drums of VAZ 2108, 2109, 21099 cars are cast from aluminum. On the outside they have stiffening ribs, on the inside there is a working surface in contact with the brake pads. The drums are drilled with one large hole for mounting on the wheel hub, four holes for wheel bolts, two holes for guide pins, two threaded holes for screwing in bolts during dismantling, as well as ventilation holes.

How does a brake drum work?

The brake drum is attached to the wheel hub and rotates with the wheel. The brake mechanism located inside it is activated when you press the brake pedal. In this case, the brake fluid presses on the pistons inside the brake wheel cylinders. They extend by moving the brake pads. With their linings they are pressed against the working surface of the brake discs - the wheel is braked.

After releasing the brake pedal, the tension springs tighten the pads, moving them away from the working surface of the drum by a certain gap, preventing the wheel from jamming. The size of the gap between the brake pad linings and the drum on the VAZ 2108, 2109, 21099 is adjusted automatically due to the automatic gap adjustment device available in each of the wheel brake cylinders.

The design of rear brake mechanisms of VAZ 2108, 2109, 21099 cars

Brake drums are also an element of the parking brake system of a car. When this system operates, the brake pads are pressed against the drums manually, by understanding the handbrake lever.

Features of removal and installation

Before removing the brake drum, it is necessary to loosen the handbrake cable so that the pads come together. Then tap its surface with a hammer with a rubber striker, clean and treat the seating surface of the drum on the wheel hub with penetrating liquid. Unscrew the pins and remove the drum.

What to do if it cannot be removed: “Remove the brake drum on the VAZ 2108, 2109, 21099.”

Before installing the drum, the brake pads must be brought together.

Brake drum malfunctions

Brake drum malfunctions: wear of the working surface (maximum permissible diameter 201.5 mm), mechanical damage to the working surface (risks, nicks), oiling. Depending on the degree of damage, the drums should either be replaced or sharpened using special equipment. Oiling can be eliminated by wiping the working surface with white spirit and replacing the brake pads.

The brake drums of VAZ 2108, 2109, 21099 can last for quite a long time (100 thousand kilometers or more), since thanks to the brake force distributor (“sorcerer”) they brake for a significantly shorter time compared to the front brakes. The rate of their wear can be affected by the poor quality of the part, the use of pads with hard linings, the ingress of dirt and sand into the mechanism (although they are more protected than front brake discs), careless repairs, and the driving style of the car owner.

It is recommended to check the degree of wear of the brake drums every 30,000 km. An extraordinary reason for checking may be the inability to adjust the handbrake.

Applicability

The brake mechanisms of the rear wheels of the braking system of VAZ 2108, 21081, 21083, 2109, 21091, 21093, 21099 vehicles use brake drum 2108-3502070 or its analogues from different manufacturers.

Guide pins 2101-3101082.

Notes and additions

In addition to aluminum brake drums, VAZ 2108, 2109, 21099 vehicles use drums made of cast iron. They are said to be more resistant to wear and have improved thermal conductivity, which improves braking.

More articles on the braking system of VAZ 2108, 2109, 21099 cars

About the advantages and disadvantages

Pros of drum brake

One of the main advantages of this mechanism is its reliable protection from external factors . This type of braking system is ideal for vehicles operating in difficult/extreme environmental conditions. Almost no dust penetrates into the brake pads; they are constantly in conditions of optimal humidity. And this significantly increases the working life of the entire mechanism. In addition, when braking in this design, a smaller amount of thermal energy is released, which allows the use of inexpensive fluids with a low boiling point.

Removing the brake drum

Another advantage of the drum brake system design is the increased braking power due to the diameter or width of the drum. This becomes possible due to the increased contact patch, the contact patch between the drum surface and the block. This is what significantly improves braking performance. At the same time, the rear brake drum, thanks to its design features, is able to increase operating efficiency. When braking, the rotating drum tends to “carry away” the brake pad, turning it.

Disadvantages of a drum brake system

But, despite the obvious advantages , this type of braking system has certain disadvantages:

lower startup speed compared to disk analogues;
some difficulties in setting up;
low stability;
When the rear brake drum heats up, the pads “stick” and a significant deterioration in braking performance occurs.

In addition, experts do not recommend using the handbrake at subzero temperatures. Cases of pads freezing to the drums often occur. To avoid such situations on modern and expensive cars, this type of braking system is replaced with a disc version. Basically, a brake system with rear drums is found on budget cars and small cars, in which they are placed on the rear wheels. Trucks are also equipped with this braking system.

Removing the brake drum

We remove the brake drum 2108, 2109, 21099

The brake drums of the rear wheels on VAZ 2108, 2109, 21099 vehicles will have to be removed when replacing brake pads, replacing or repairing brake cylinders, repairing or servicing the brake mechanism, or when vibration and beating occurs when pressing the brake pedal.
Necessary tools and accessories
- 7 mm wrench (deep head, socket)

— Wire brush

— Penetrating lubricant (kerosene, VD-40)

— Hammer with rubber striker

— M8 bolts 60-70 cm long

Preparatory work

Work on removing the brake drums of VAZ 2108, 2109, 21099 cars is best done in a pit or overpass since you will need access to the parking brake system cable tensioning mechanism located under the bottom.

— Lower the handbrake and loosen the tension on the parking brake cables

— Remove one of the rear wheels

The procedure for removing the brake drum on VAZ 2108, 2109, 21099 cars

— Unscrew the two drum guide pins

We use a deep socket or a 7 mm socket wrench. The pins may become sour and not come out. Therefore, we clean them with a metal brush and treat them with a penetrating liquid. In especially severe cases, you can lightly tap the guides with a hammer from different sides.

— We clean the seating surface of the brake drum from dirt and corrosion

We use a wire brush and penetrating lubricant. Also, to make removal easier, tap the brake drum with a hammer with a rubber striker on the side surface.

- Remove the brake drum

We move it towards ourselves, holding the edges with our hands and rocking it left and right. If the drum cannot be removed by hand, screw two M8 bolts (or previously removed guide pins) into its technological threaded holes and sequentially, evenly screwing them in, compress the brake drum.

That's it, the brake drum of the rear wheel of VAZ 2108, 2109, 21099 cars has been removed.

Similarly, if necessary, remove the brake drum of the second rear wheel.

Features of the reverse installation of brake drums of the brake system of VAZ 2108, 2109, 21099 cars

— Move the brake pads

Using two mounting blades, we rest against the shoulder of the brake mechanism support shield and, applying force, move the brake pads towards each other.

— We put on and fasten the brake drum

With the shoes moved, the drum should fit without much effort.

— Set the gap between the brake pads and the drum

To do this, press the brake pedal several times. The gap will self-adjust. To do this, the rear brake cylinders have a device for automatically adjusting the gap between the pads and the drum.

— Adjust the parking brake

See “Adjusting the parking brake (handbrake) on VAZ 2108, 2109, 21099 vehicles.”

Notes and additions

— It is not recommended to press the brake pedal with the brake drum removed to avoid pushing out the brake cylinder pistons.

— We check the brake drum for cracks, severe wear or deep marks on the working surface. The maximum permissible internal diameter of the brake drums of the rear wheel brake mechanisms of VAZ 2108, 2109, 21099 is 201.5 mm. If there is severe wear, replace the brake drum with a new one.

More articles on the braking system of VAZ 2108, 2109, 21099 cars

— Diagram of the manual parking brake of VAZ 2108, 2109, 21099 cars

— Working out a jammed caliper piston

— “Bleeding” the brakes of VAZ 2108, 2109, 21099 cars

— Checking the brake system of VAZ 2108, 2109, 21099 cars

— Diagram of the working brake system of VAZ 2108, 2109, 21099 cars

Malfunctions: causes and symptoms

Since the participation of the rear wheels in braking is much less than that of the front wheels, the motorist does not immediately notice a decrease in the efficiency of their work. In this case, the process of reducing efficiency can last quite a long time.

Failures in the operation of drum brakes are felt when braking sharply - the car stops much more slowly. On many cars, failure of the drum braking system is especially noticeable when driving in reverse. The front brake system, which has become the rear, does not “want” to work effectively, stopping the car.

A leak of working fluid often leads to the shutdown of one or two circuits of the braking system - this provokes a decrease in its efficiency by up to 60%. Air in the hydraulics creates a soft pedal feel. In this case, the brake can only be applied at the end of the stroke.

If the pads are “skewed” or the spring/strut in the drum breaks, the motorist may hear grinding sounds . This leads to jamming and overheating of the drum. In addition, this leads to a decrease in vehicle acceleration and increased fuel consumption. Among the failures, “ovality” of the drum is often encountered.

Types of breakdowns

Among the most common reasons that involve removing the rear brake drum and replacing it due to loss of efficiency is not only wear on the pads, but also high wear on the drum itself. On its inner working surface the circumference increases. If the pads and working surface wear out immediately, there is a risk of pistons being squeezed out of the cylinder, wheels jamming, or brake fluid leaking.

Brake drum failure

On cars with high mileage, due to corrosion, the spring “sticks”, weakens or breaks . The pressure force may decrease significantly due to the fact that the handbrake cable has become loose. Not often, but it still happens that the friction linings peel off from the pads, then it is necessary to replace the brake pads on the rear drums.

Removing and replacing brake drums on VAZ 2108, 2109, 21099 – Avtochanel

Hello, in this article you will learn how you can independently replace brake drums on a VAZ 2108, 2109, 21099. The brake pads rub against the brake drums, and the more often and sharper you brake, the more and faster the inner surface of the drum wears out. Also, its service life depends on whether you drive with the handbrake while the car is moving (many people like to pull the handbrake when turning in winter). There is no exact service life for brake drums, i.e. it all depends on how you drive. First, remove the wheel and unscrew the studs on the drum

Removing the brake drum on a VAZ 2108, 2109, 21099 may not be a simple procedure, because it may stick, so gently tap it on the other side through a piece of wood; the most important thing is not to chip off the edge of the drum, otherwise it will lose balance and you will definitely have to replace it with a new one. You can also try screwing the bolts into the technological holes on the drum, then it should also come out of its seat.

Now remove the brake drum completely.

Avtochanel

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Troubleshooting methods

Before we talk about ways to remove the rear brake drum if it is stuck, you need to name the reasons why this can happen:

Heating the brake pad causes the metal that makes up the drum to expand, causing the cover to stick to the body.
Dirt accumulated between the cover and body.
Rapid heating of the element during braking, and then sudden cooling (for example, in a puddle of water).

All this leads to sticking of the brake drum. Note that dismantling it is quite difficult. Therefore, experts do not recommend resorting to sharp braking in rainy weather, which is quite difficult to dismantle when replacing the pads. Now let’s talk about the most acceptable ways to remove a stuck drum.

If car service technicians cope with this task almost effortlessly, having sufficient experience and the necessary tools, then an ordinary motorist who decides to do such work on his own needs to stock up on a certain tool. Moreover, for each specific case this tool may be different.

But you will always need WD40, which is used when repairing various vehicles.

Sledgehammer to help you

Using this method requires reliable fixation of the car. It is better to perform all actions on a lift (a car jack is not able to provide maximum stability to a raised car). In addition, a metal goat designed to support the machine, or an ordinary stump from a large tree, may be suitable for this. Let's move on directly to the sequence of actions when dismantling the brake drum. You will need:

Remove the wheel.
Using a wire brush, clean the cavity from any accumulated dirt.
Spray the surface generously with WD40.
Gently tap the drum collar at the bottom until it becomes movable. There is no need to strike too hard - this can lead to damage to car parts.

But it is advisable to warn that this method has one significant drawback - not everyone has a sledgehammer and not everyone knows how to handle it. Therefore, it is advisable to consider other options for solving this problem.

Extreme way

This method involves absolute fixation of the machine . Before starting work, you should check everything carefully, because if the car comes off, the risk of serious injury increases by almost 100%. Having chosen this option for removing a stuck drum, you will need to perform the following steps:

Get behind the wheel.
Turn on the ignition.
Engage 2nd (3rd) gear and release the clutch.
Rotate the engine to medium speed.
Shut down the power unit and remove the drum.

The meaning of this method is to spin the moving part of the axis, and therefore the drum itself, using centrifugal force. In this embodiment, the drum will simply be descaled.

Radical measure

If suddenly the methods described above did not lead to the required result , in addition, the brake system cylinder is jammed, then it is advisable to take radical measures. To complete the work you will need a drill with a drill (diameter size 2-3mm), a medical syringe, and a sledgehammer. Here's what to do if all else fails:

Make several holes at the junction of the axle shaft and the drum.
Use a syringe to pour brake fluid into the holes and at the same time gently hit the drum with a sledgehammer.

To simplify operations, use a special removable key (you can buy it or make it yourself). After performing these steps, the stuck drum should come off. But, if you still can’t do this, then you need to visit a car service center. Here the craftsmen will certainly be able to handle the removal of the brake drum. Of course, you will need to pay for the service, but it will be cheaper than buying a new hub or steering knuckle if it breaks.

VAZ 2109: replacing brake drums with your own hands

Rear brake drum VAZ 2109

In a VAZ 2109 car, replacing the brake drums is necessary if the brake cylinder is leaking and has blown boots. Replacing the brake drum of a VAZ 2109 can be easily and freely done on your own.

Self-replacement

Replacing a brake drum on a VAZ 2109

To make the replacement yourself, you need:

Raise the car with a jack.

Note: it will be much easier if you can find a lift. This way the whole essence of the problem will be better visible.

Remove the wheel. Unscrew all the nuts that hold it in place using a 17mm wrench.
Using a 12mm wrench, unscrew the two guides that hold the drum.
The threads can be easily stripped, so you need to unscrew the guides very carefully. After some time, the drum will begin to slide off, making it easier to remove. However, you should not make sudden movements, as you can damage the thread that holds it.
If you twist the guides correctly without warping the drum, you can remove it even without hitting it with a hammer. However, if this cannot be accomplished, then the hammer must be struck from the reverse side, but this must be done rather slowly and drawn out.

Note: if you plan to completely replace it and not repair it, then you should not carefully remove the drum. It can simply be broken.

Now you just need to remove the rear hub and bearing and change them if necessary.
After this, it will be easy to remove the drum itself.
To install a new one, you should perform all the same steps, but only in reverse order.

Unscrewing the hub nut

Replacing brake drums VAZ 2109

If the hub nut is loose, it must be removed as follows:

Drill a small hole in it.

Note: this procedure will loosen the thread tension, that is, it will also loosen the nut itself. This should be done as close to the thread as possible. By the way, if the thread is slightly damaged, it’s not a big deal.

Insert the wrench into the nut.

Replacing brake drums on a VAZ 2109

Note: if the key bends, it is better not to continue. We'll have to try again to widen the hole that we started making earlier. In some cases, it is necessary to cut the nut completely if it is held too tightly. You need to hit it with a chisel until it cracks.

After prolonged manipulation, the nut can still be unscrewed. Of course, it can no longer be repaired and will have to be replaced.

Replacing the rear brake drums of a VAZ 2109

After this, you can easily remove the brake drum. To do this, you need to pull it towards you and quickly “rip” it out of the chain.
Insert new one.
Screw in the new hub nut.

Replacing rear brake pads

Replacing rear brake drums on a VAZ 2109

When replacing the drum, you can immediately replace the brake pads, since they also often fail. For this:

Raise the side of the car that will need to be worked on with a jack.

Note: You can lift the entire car on a lift.

You need to remove the rear wheel.
Now you need to unscrew the brake drum.

Note: to do this, use a long socket or a 7mm wrench to unscrew the two drum guides.

Using a hammer, knock down the drum and remove it. The impacts must be soft and smooth, otherwise you can damage the car.

New brake drum VAZ 2109 and pads

Note: If it cannot be knocked down, the car will have to be driven into a pit to loosen the parking brake adjuster nut. The brake cylinder must be dry and free of brake fluid leaks and dust caps.

You need to remove the old brake pads.

Note: To do this, use pliers to disconnect the spring from the pad and remove the lower tension spring that secures the pads together. The upper tension spring should also be disconnected, and then the front block should be removed. Now remove the rear pad pressure spring. Remove it together with the spacer plate. Remove the shoe by disengaging the hook of the spacer arm from the end of the parking brake cable.

Get new brake pads.

Note: Some brake pad kits also have a spacer arm. If it is not included in the kit, then you should replace the old one with the new brake pad.

To do this, use pliers to unscrew the axial pin of the lever.

Drum brakes VAZ 2109

Remove the washer and spacer lever from the block.
Knock the axle pin out of the brake pad.
Assemble the rear block structure.

Drum brakes for VAZ 2109

Insert the axial pin of the spacer lever into place.
Place the spacer lever on the finger and the washer on top.
The cotter pin also needs to be placed in the lever pin.
Insert spacer plate.

Drum brake VAZ 2109

Hook one end of the upper tension spring. Hook the cable fasteners onto the hook of the spacer lever.
Place the entire structure in place. Secure the pad with a clamping spring. Take the front block and hook the upper tension spring onto it.
With emphasis on the brake cylinder mounts, stretching the spring, move the block away and fix the spacer plate. Secure the pad with a clamping spring. Place the lower tension spring onto the brake pads.
Next you need to put on the brake drum.

Note: If replacement is necessary, a new one must be installed. They are replaced as they wear out, as well as due to uneven wear or deformation.

The maximum permissible internal diameter of the brake drum is 201.5 mm. If the current diameter exceeds this, then the drum should be replaced (when installing an old brake drum, you may encounter a problem - it cannot be put on, and in this case you need to remove the protrusion on the edge with a file or grinder, which prevents it from being put on).
Now the drum installs without problems.
You need to install it so that the holes for the bolts match. Tighten the guides and tighten them with a wrench.
Install the wheel and screw in the bolts.

Note: the same algorithm is used to change the pads on the second wheel.

Replacing the brake drum can also be done at home. You can easily perform this procedure with your own hands. Usually in car services the price for this manipulation is quite high. It is very important to review many photos and videos on this topic before starting repairs. Any instructions written above will help you get the job done quickly and efficiently.

How to remove a drum on some cars

So, we found out that the drum element must be replaced in case of wear, deformation and sticking . The general procedure for performing actions when removing this element was described. And now we want to tell you how to remove the drum on VAZ models.

Brake drum removal wrench

VAZ (2101-07)

Replacement of the rear drum element is carried out with the car suspended and the handbrake released. First, remove the wheel on which the element is to be removed. Then, using a wrench/spanner, remove the guide fasteners (pins) that hold the drum and secure the wheels to the hub. After completing these steps, pull out the element body. It should come off fairly easily.

If this does not happen, which happens often, then take a couple of bolts (M8) and screw their holes into which they can easily be screwed. They must be screwed in evenly. As a result, the drum will give in.

Lada (2108-21099)

To remove the rear brake drum elements on these VAZ models, first gear is engaged and stops are installed under the front wheels of the car. The handbrake must be released. Then the wheels are removed, and the brake mechanisms are cleaned of dirt.

After this, the mounting pins are turned out, WD40 is applied to the hub and any traces of dirt/corrosion are removed. Applying light blows with a rubber/polymer hammer, the drum is pulled off the hub. If the element does not give in, then the drums are pressed together using fasteners (M8 pins/bolts).

Lada (2110)

Removing brake drum elements on these models often causes some problems for the car owner. The element is easy to dismantle on a new car, but to remove it on old cars you will need a good-quality hammer, a 7mm deep socket and a ratchet. First, loosen the bolts securing the rear wheel. Then the car is raised using a jack, the fasteners are completely turned out and the wheel is removed.

Brake system repair

Next, the pins are unscrewed from the drum element. But it’s better to do this when the car’s wheels have not yet been removed. The handbrake is applied. Next, on the reverse side, the drum is knocked off the hub with a hammer. If difficulties arise, the studs will help - they are screwed into the corresponding holes, and when they are screwed in evenly, the drum is removed. By the way, the drum is removed in the same way on Korean cars . Sometimes some force will be required, but usually treating the contact area of the drum with WD40 makes it easy to remove. As you can see, dismantling brake drums is not always easy, so the advisability of regular inspection is obvious.

The brake system requires diagnostics after 40,000 km . In this case, there are no problems with removing the drum.

It is important to take into account that if the car owner undertakes to perform the actions described above on his own, then the first place must come first!

Sledgehammer and how to work with it

In the vast majority of cases it helps. However, there is a subtlety that some people forget about: fixing the car. Many people simply jack it up and leave it at that. At the same time, not taking into account that a sledgehammer is a heavy thing, and there is no measure of strength. Sometimes this combination works so hard that the jack can't stand it. Therefore, additional support is needed. It is best to use an iron “goat” as it - many people have it hiding somewhere in the corner in the garage.