The purpose of the "sorcerer"
The so-called sorcerer on the VAZ-2109 is necessary to automatically change the fluid pressure in the rear brake cylinders depending on the load acting on the car when the speed decreases. This element is used in both hydraulic and pneumatic drive systems.
The main purpose of changing the pressure is to prevent possible wheel locking and skidding of the rear axle of the car.
In some car models, in order to maintain their controllability and stability, a regulator is additionally installed in the brake drive of the front wheels.
In addition, on the VAZ-2109 the sorcerer is used to increase the braking efficiency of an empty car. The traction force of a loaded car and an empty one is different, so the force on different axles must be adjusted. In the case of a loaded and empty machine, static type regulators are used. Automatic solutions are installed in trucks.
In sports cars, manufacturers often install a screw adjuster. It is located inside the car and adjusts the balance of the brake system directly during the race. It is adjusted based on weather conditions, road conditions, and tire quality.
Sorcerer VAZ-2109: principle of operation and design
The brake force regulator (and among car enthusiasts and VAZ-2109 owners - a sorcerer) is one of the elements of the brake system in a car. Its main task is to prevent the rear axle of the car from skidding when braking. Modern cars have not had such an element in their systems for a long time. These functions are performed by the EBD system. However, there are still a lot of “nines” and they are bought by young people, and therefore it is useful to know how this device works, as well as how to regulate it.
Mechanism design
The Sorcerer is the ancestor of the modern ABS system. It also prevents the wheels on the rear axle from locking during braking.
The device is connected to the rear beam by means of a rod and a torsion lever. This very lever acts on the sorcerer’s piston. The regulator input is connected to the brake master cylinder. The output is connected to the rear working cylinders.
The device consists of a housing, pistons, and valves. The body inside is divided into two cavities. The first interacts with the main brake cylinder. The second is connected to the rear brake mechanisms. When performing emergency braking, when the front part of the car tilts, using pistons and valves inside the regulator, the access of fluid to the rear brake mechanisms is blocked.
In this way, the force on the wheels of the rear axle is automatically controlled and distributed. The distribution of forces depends on how the axial load changes. Automatic sorcerers speed up the process of unlocking the rear wheels.
"Wizard" OR ABS?
And yet, such a regulator on a modern car is a legend of deep antiquity. It cannot compete with ABS, especially if the driver is an average driver who does not know extreme driving techniques. The curb weights of Kalina and Priora are almost the same - the difference is less than a percent. Using the same tires that were on the Kalina, the Priora with ABS showed the best results under any load. Moreover, no dosing of force on the brake pedal was required, you just press with all your heart, and the electronics do the rest.
Operating principle
During braking, the distance between the axle and the body increases at the rear of the car. As the distance increases, the lever mounted on the bridge releases the sorcerer piston, and it blocks the flow of fluid to the rear brakes. What happens if the fluid can't get to the rear brakes? The wheels will not lock, but will rotate.
In simpler terms, the operating principle of the VAZ-2109 sorcerer is as follows. When the driver pushes hard, the rear of the car will rise. The front one, on the contrary, will go down. This is where the sorcerer begins to work. It will not allow the rear pair of wheels to brake immediately.
The fact is that if the wheels on the rear axle begin to brake along with the front ones, then there is a huge probability that the car will skid. In this regard, the rear brakes will start working a little later than the front ones. The risk of skidding is reduced.
Examination
The operation of the VAZ-2109, 2110 and other AvtoVAZ models is checked on the move, in closed areas. To do this, accelerate the car to a speed of 40 km/h and sharply press the brake. The rear wheels should lock 1/2 second later than the front wheels.
The wheels are monitored by an assistant located outside the car. If wheel locking occurs noticeably later or does not occur at all, and also if the rear axle is locked simultaneously with the front, the sorcerer adjustment procedure is repeated.
To increase the response time of the rear brakes, the gap between the adjuster and the bracket is increased; to shorten it, it is reduced accordingly.
Source
Without a sorcerer
Knowing what the sorcerer's job is on the VAZ-2109, it is not difficult to guess what will happen if it is absent from the brake system. And the following will happen. The car will brake with all four wheels together. The wheels are blocked sequentially - first a pair of wheels on the rear axle, and then the front ones. The risk of an accident increases, since the driver moving behind is unlikely to react in time to a sudden maneuver. A collision will be inevitable.
A sorcerer in the car is very necessary. A VAZ-2109 car without a sorcerer can be very dangerous not only for others on the road, but also for the driver himself. This car is practically uncontrollable in a skid.
Only those who know exactly and understand well what they will get in the end remove the sorcerer. This is mostly done by professional racing drivers.
But some car owners still remove the sorcerer. At the same time, there are even claims that the car began to brake faster and better. Experts say it only seems so. In fact, everything is a little different. The problem here is that in the event of sudden braking, both pairs of wheels will jam in succession.
Replacing the sorcerer with a VAZ 2114 tee
Among some car enthusiasts, such a technical procedure as replacing the standard brake force regulator with a so-called tee is popular. The reasons for this replacement are constant complaints from car owners about problems with the sorcerer, for example: - Initially incorrect operation of the new product; - For souring of the element. As a result, failure or improper operation of the braking system; - Other problems.
In other words, driving with a faulty sorcerer is fraught with consequences in the form of skidding, which at high speeds can lead to serious accidents and overturning of the car. Conversely, driving without a brake force regulator is safer (compared to a faulty regulator) due to the fact that only two front wheels are involved in braking, the rear wheels are not blocked at all.
Typical faults
There are very few malfunctions that occur in this part. These include stuck valves, misalignment, and leaks.
If the sorcerer is upset, he can be adjusted. And they determine whether adjustment is needed by the behavior of the car. If the setting is off, then when braking the car will throw from side to side. If the valves are stuck or the brake fluid is leaking, the part needs to be replaced. Theoretically, repairs are possible, but the complexity and cost make it unprofitable.
The regulator may fail to operate only in two cases - at the maximum possible load and at a speed limit above 80 kilometers per hour. In this situation, the speed does not drop quickly, so the rear axle is not unloaded.
We adjust the sorcerer on VAZ 2108-VAZ 21099
Note! We recommend going to the article about the whereabouts of the sorcerer (as well as a lot of interesting things) “Brake pressure regulator and why does a car need it?”
1) At the very beginning of the operation, drive the car into the inspection hole and press on its rear so that the car’s suspension is in the middle position.
Note! It is recommended to make adjustments with the machine unloaded!
2) Next, using a 13mm wrench, loosen the bolt securing the regulator to the lever bracket.
3) Having loosened the bolt, insert a wire (drill) of suitable thickness into the gap located between the lever and the lever spring (the place where the wire is inserted into the gap is indicated by a red arrow). But for the wire to enter, at the same time move the bracket with a screwdriver until the wire enters the gap (the place where the bracket is moved with a screwdriver is indicated by a blue arrow).
Note! The thickness of the drill/wire is "2.0-2.1mm", otherwise the sorcerer will not be able to be adjusted normally.
4) And at the end, tighten the bolt securing the sorcerer to the bracket until it stops.
Note! After tightening the bolt, do not forget to remove the wire!
Examination:
The check is done after adjustment in order to understand whether it was possible to adjust it.
1) At the beginning, be sure to take an assistant, there is no other way.
2) Next, find a safe area, always level.
Note! We mean a place where there are no pedestrians, no cars, and no animals walking.
3) Ask an assistant to leave the car, accelerate to “40 km/h” and sharply press the brake pedal.
Note! Meanwhile, the assistant must carefully monitor the rear wheels of the car, because during sharp braking they should not lock immediately, but after a delay. Only the front wheels are instantly locked!
- If the rear wheels lock with a clear delay when braking, or do not lock at all, then reduce the gap between the lever and the spring.
- If the car's rear wheels lock too early, increase the clearance. Remember, if the rear wheels are locked too early, there is a high probability of skidding during skidding!
How to check and adjust?
If during the braking process the car slows down ineffectively, the car is pulled in one direction, the car often skids, then this is a signal that you need to check the unit and adjust the sorcerer on the VAZ-2109.
To check, the car is driven into a pit or overpass. Defects will be detected visually. Most often, the inspection shows that repair is not possible.
If we talk about adjustment, it is better to do it on an overpass. The adjustment greatly depends on the position of the body. Adjustments must be made after each maintenance. Adjustment is also necessary if something from the suspension has been changed. If there has been repair work on the rear beam or it has been changed, this also requires adjustment.
To adjust the device, use a wrench to slightly loosen the bolt securing the sorcerer to the lever. Then use a screwdriver to move the bracket until the gap allows you to insert a drill into it two millimeters. Next, the bolt needs to be tightened.
The regulator on the “ten” and previous models becomes very sour during the operation of the car. The bracket cannot be moved. In this situation, you can douse it with WD-40, and then use a hammer to move the part to the side.
Brake pressure regulator
Attention. If there are problems with the brake system, then the problem may be hidden in the pressure regulator itself.
VAZ 2109 rear brake pressure regulator
In order to regulate it, you need to know the basic principles of operation of this mechanism, popularly called a sorcerer. As a rule, the sorcerer is attached with two bolts from the bottom of the car. As for one of the bolts, it also simultaneously secures the fork element of the drive lever, which is responsible for pressure. This very element or bracket is the very object with which the movement is carried out and thus the pressure can be adjusted.
Replacement
Replacing the sorcerer with a VAZ-2109 is performed as follows. You will need a 13 mm wrench, a powerful screwdriver, and a special wrench for unscrewing the brake pipes. Before work, you need to clean the part from rust, pour it with WD-40 or a similar liquid and wait.
You need to start by unscrewing the bolt that secures the bracket to the spring. Then unscrew the brake pipes. Having unscrewed the fittings, unscrew the bolts securing the part to the body and the sorcerer can be removed.
Is a sorcerer really necessary?
If you remove a part from a car, various unpleasant situations may arise. So, a car can brake with four wheels at once, the wheels can be blocked sequentially, and the car will go into a skid.
However, many VAZ owners, when servicing their car, sometimes notice that the sorcerer was removed by the previous owner. Some don't even notice his absence. Others remove it themselves, since it does not work and reduces the effectiveness of the braking system.
The thing is that AvtoVAZ engineers took someone else’s idea and used it to equip domestic cars, but these are completely different cars. Without a doubt, this product is very necessary, but in the case of VAZs it is disposable.
