Replacement of the main brake cylinder VAZ-2107: removal and installation

Safety in the car is not only straps and pillows. If the brakes are faulty in the car, the consequences can be much more sad. This system is one of the most reliable in the car. However, over time it fails. In today's article, we'll look at how the main brake cylinder VAZ-2107 is replaced independently.

Characteristic of GTZ

What is this element? GTZ is a mechanism that creates high pressure in pipes and highways by pressing the appropriate pedal. в подкапотном пространстве, рядом с вакуумным усилителем. Located in the engine compartment, next to the vacuum amplifier.

The device of this element is quite simple. The mechanism includes:

• Steel case.
• A spring with a piston that creates pressure in the system.
• Holes for connecting tubes.
• A tank with a liquid (it is installed on top of the element).

The safe operation of this element depends on traffic safety. Therefore at the slightest signs it is necessary to change it urgently.

How to identify a malfunction?

There are several reasons why this element fails. The first is a breach of the integrity of the system. If the main brake cylinder is leaking , the VAZ-2107 is not allowed to operate.

For any leakage of fluid and if there are traces of swelling, measures need to be taken. It often happens that the pipes "sweat". In this case, the car needs replacing the main brake cylinder connection. VAZ-2107, in which the liquid level constantly falls, it is impossible to operate. One moment you can stay without brakes. The next reason is the nature of the pedal itself. If it becomes "wadded" and sluggishly returns, it means that there is no vacuum on the amplifier. In this case, you need to check all cuffs and tubes. If they are whole, it is necessary to replace the main brake cylinder VAZ-2107. The price of the new item comes to thousands of rubles.

Required Tools

So, what tools do we need to work? To replace the main brake cylinder (VAZ-2107) was successful, we will need:

• The key is "8" and "10". A tool is needed for brake pipes, as carob often lick faces.
• The head is "10" and "13".
• Screwdriver. Needed in the event that on rubber tubes and cuffs you have clamps.
• Medical syringe (it is enough to use a five- or ten-cube).
• The new clamps are 10-16 millimeters.
• Empty bottle or any other container.
• Brake fluid (on the domestic "classics" the product of the brand "RosDOT" of the fourth class is used, as shown in the photo below).

An important point - before buying a new brake cylinder, check the condition of the tubes (both metal and rubber). They should not have wet marks. With regard specifically to rubber, cracks and abrasions are eliminated. These tubes should not be hard to touch. If so, it is better to buy new ones. Fortunately, the price for them is up to 200 rubles apiece.

So, when we have prepared the necessary set of tools and new parts, the main brake cylinder VAZ-2107 is being replaced.

Instructions

So, the first thing we do is remove the fasteners of the expansion tank. To do this, you need to use the "10" key. Next, remove the lid and merge the excess antifreeze into a previously prepared container. Then we put a piece of clean rags under the master cylinder. This is necessary so that the brake fluid does not enter the motor. Next, we take a screwdriver and unscrew the hose clamps that go to the master cylinder. All the fittings are pulled out. After that, we wipe the remaining liquid on the brake servo. Remove the protective plug from the new cylinder. Instead of it we establish an epiploon. The latter can be taken from the old GTZ, or buy a new one in the store (depends on the state of the part).

How to replace the main brake cylinder VAZ-2107? Then use the key to unscrew the tubes themselves (there will be 3 of them). Remember that you can not use the car keys. In extreme cases, be careful not to lick the edges. The connection points of the tubes can become very rusty - be prepared for the difficulties. After using the key "for 13", unscrew a pair of fixing nuts that go from the master cylinder to the vacuum amplifier. The old GTZ can now be reached outside.

Now, in its place, install a new one and tighten the bolts. Next we need a syringe. In it we type a small volume of brake fluid "RosDot" and apply it to the attachment points of the tubes. Before this you need to remove the rubber plugs from them. The total number of holes is three. Take care not to get dirt inside. It will be impossible to extract it from there. Fill the holes until the liquid runs out. After that, install the front fittings and twist them with a special key (not a horn). The same procedure is done with the rear hoses.

What next?

Now the expansion tank is on the turn. Before installation, carefully inspect its condition. Inside the tank there should be no plaque or deposits. New to buy is not necessary - just remove the old dirt with a cleanser. After that, we put the rubber hoses on the tank and connect it to the system. All carefully fix the clamps. This completes the repair procedure. In the end, it will only be necessary to pump the system by removing excess air.

The price of GTZ

How much can I buy the main brake cylinder VAZ-2107?

The price starts from 400 rubles. The most expensive ones cost up to one and a half thousand rubles. It should be noted that the repair kit of the main brake cylinder VAZ-2107 is also sold in stores. It includes a set of several elastics. Sold at a price of 100-200 rubles.

Conclusion

So, we found out how to replace an element such as GTZ on a VAZ-2107 car and how to determine its malfunction. The braking system is perhaps the most important knot in any car. Therefore, do not delay the repair, if there were interruptions in its work. You can replace the element with a new one if you have a minimum set of tools. In total, the work will take no more than one hour.