How to repair a car
So, in this article we will look in detail at how to replace the rear brake pressure regulator on VAZ-2170 Priora, VAZ-1118 Kalina, VAZ-2108, VAZ-2109, VAZ-21099, VAZ-2110, VAZ-2115.
Reasons for replacing the rear brake pressure regulator
The pressure regulator is replaced for several reasons, the main ones being: wear of the cuffs ( when brake fluid leaks), souring of the sorcerer piston.
If you can check the brake fluid leakage by the level of the brake reservoir, then in the second case you will have to use someone's help.
Why do you need a brake force regulator?
The function of the regulator is to temporarily reduce the braking force during heavy braking. The fact is that force evenly distributed on the rear and front axles can lead to a skid of the car. If the rear brakes start working a little later and weaker than the front ones, this does not happen.
Based on the above, we can conclude that the sorcerer is an element of the car’s safety system, partly preserving its stability on the road when the brake pedal is pressed in an emergency. On modern models, this function is performed by ABS. That is why there is no need today to use a technically outdated device in production.
Device Description
The design and principle of operation of this element are quite simple. At the moment when the rear part of the car body rises and the distance between the axle and the body increases, a special lever is activated, which is connected in a “sorcerer”. This lever lowers the piston, which closes the brake fluid channel, and accordingly the pressure on the rear pads decreases. The wheels do not stop rotating and, accordingly, do not skid.
Read more: How to change the low beam bulb in a Peugeot 308
The idea itself is quite clever, but, as often happens, in practice it raises doubts. After all, if when braking the brake pedal is pressed with great force, then the front wheels go into skid and the car still begins to skid. Quite often, when observing a traffic accident, you will notice that the cars with the “sorcerer” are turned backwards. Is this related to this miracle detail, which in its essence should prevent this skidding?
Adjusting the brake pressure regulator (sorcerer)
1. Place the car on the inspection ditch and press the rear part of the car several times (with a force of about 40–50 kgf) to set the rear suspension to the middle position.
2. Loosen the front bolt securing the regulator to the bracket.
3. Using the wire as a feeler gauge, adjust the bracket so that the gap between the drive lever and the lever spring is 2.0–2.1 mm.
4. To do this, move the drive lever by the protrusion. In this position, tighten the bolt.
5. If the pressure regulator is correctly adjusted, when braking from a speed of about 40 km/h on a horizontal section of the road with a hard surface, the front wheels should lock slightly earlier than the rear (this can be determined by an observer outside the car). Otherwise, increase the gap (if the rear wheels lock earlier than the front ones) or decrease it (if the rear wheels lock much later than the front ones). After this, check the adjustment again by braking and repeat if necessary.
Video about adjusting the sorcerer:
A brake force regulator, or sorcerer in common parlance, is a mechanical device designed to relieve excess pressure in the rear drum brakes.
On VAZ-2109, VAZ-2108, VAZ-2114 and other front-wheel drive models produced in Togliatti, it was installed in the rear left part of the body, under the bottom, in front of the rear suspension beam. The brake pressure regulator on the VAZ-2107 model and other “classics” is located on the right in the direction of travel of the car.
New vehicles equipped with ABS and EBD do not use the sorcerer.
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.
Welcome! In today’s article, we will examine in detail a question that plagues many car owners, and it sounds like this: “How to adjust the sorcerer on cars of the Samara family?” After reading, the following question appears: “What kind of sorcerer are we talking about?” Let's explain! The sorcerer is the popular name for the brake pressure regulator; you will find this very word in the article.
Note! You will need the following tools: a 13 mm wrench, a flat screwdriver, a short wire or a drill with a thickness of 2.0-2.1 mm.
Share! Thanks to the sorcerer, the car does not skid during emergency braking and the braking distance becomes shorter. There are situations in life when you have to suddenly apply braking on the road, for example, because of a pedestrian, cat, or dog suddenly running out onto the road. If such cases have occurred in your life, tell us about it in the comments, and most importantly, share your experience of what needs to be done in such a situation. Advice from life will be very useful to people!
Summary:
When is it necessary to regulate? Adjustment of the sorcerer is necessary:
- If you have previously carried out work related to removing the rear suspension beam.
- After carrying out various work related to replacing springs, replacing the shock absorber and other suspension elements - in other words, any intervention to change the ground clearance.
Note! An incorrectly adjusted sorcerer causes the car to pull to the side during heavy braking, and the braking process loses its effectiveness. We recommend that you monitor the condition of the sorcerer very carefully.
Setting the brake force regulator
Adjustment of the sorcerer should be done on an overpass or inspection hole. At the same time, the car is unloaded and driven to the work site. To perform the manipulation you will need:
- Socket wrench 13 or corresponding socket;
- Drill diameter 2 mm.
To adjust the sorcerer, use a wrench to loosen the bolt securing it to the lever bracket. Next, use a screwdriver to move the bracket until the resulting gap allows you to insert a prepared two-millimeter drill into it. After this, the bolt is tightened.
Note: the brake pressure regulator of the VAZ-2110 and previous VAZ models turns sour during operation so that it is not possible to move its bracket. In such a situation, you should pour WD-40 liquid over the rusted area, wait 15-30 minutes, and then use a hammer to move the part to the side using a soft drift.
Possible malfunctions of the regulator
In general, there are few malfunctions that can occur in the sorcerer. These include:
- Valve jamming;
- Misalignment of position;
- Brake fluid leaks.
A deregulated sorcerer can be adjusted. You can determine the need for adjustment by the behavior of the car when you press the brake. If the regulator is set incorrectly, the car starts to toss to the side.
If the valve jams or fluid leaks, the mechanism must be replaced. Theoretically, it can be repaired. However, the process of such repairs is complex and expensive, which makes it unprofitable.
Improvement of the braking system
Many VAZ 2110 owners agree that the factory brake system is far from perfect. Therefore, they decide to modernize and improve the unit using technical tuning.
A popular solution to the issue of brake efficiency is to replace drum mechanisms with disc ones. Of course, in the case of the “ten” we are talking about the rear wheels. When replacing brakes, be sure to take into account the fact that the rear wheels must brake more softly and somewhat later than the front wheels. This way the car won't skid and you won't fly off the road.
Another option is to remove the factory brake master cylinder and vacuum booster. Instead, units from Priora are excellent. Such tuning will eliminate vibrations and also allow you to use the brake pedal effectively and without excessive effort.
Is a sorcerer really necessary?
If you remove a part from a car, various unpleasant situations may arise.
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.
Without a doubt, this product is very necessary, but in the case of the VAZ it is disposable.
How to replace the brake pressure regulator in a VAZ 2110?
1. The first thing to do is to release the regulator drive lever; to do this, lift the bracket up. If necessary, use a screwdriver to loosen the earring bracket. All manipulations are performed with a key of 10.
2. After disconnecting the lever, carefully remove the earring bracket.
3. Prepare a container; it needs to be placed under the junction of the regulator with the pipes; brake fluid will flow out of it. We disconnect the four tubes by unscrewing the fastening nuts. We wait until the liquid drains. We plug the holes in the tubes; this can be done, for example, with caps on the cylinder bleeder valves. It is recommended to mark the tubes so that during further installation you will not confuse them.
4. Unscrew the front bolt securing the bracket with the regulator.
5. We unscrew the rear bolt, which we hold the regulator on the side of the bracket, after which we remove the regulator (sorcerer), without unscrewing the drive.
6. If you need to replace drive parts, unscrew the bolt that holds the locking lever and disconnect the drive lever from the elastic lever.
7. When you connect the drive lever to the elastic lever, following the sequence, the clamp fork should fit into the groove on the elastic lever.
What is a brake pressure regulator? How to replace it? Principle of operation!
Welcome! Have you heard anywhere about such a thing called “Rear Brake Pressure Regulator”? It is also called in abbreviated form simply “Brake Pressure Regulator”! But this is not his last name, since he has another name that is much more common and which came to him from the people, and it simply sounds like “Sorcerer”.
If you have heard about it, then today you will find out information for yourself after studying it, in the future you will no longer have questions about this regulator, and if you do, then ask them in the comments and we will be happy to answer them !
Note! We will talk about pressure regulators only using the example of VAZ cars!
Where is the brake pressure regulator on a VAZ?
On many VAZ cars, the sorcerer is located mainly in the rear of the car, but so that you understand immediately and in the future you do not have questions about this, we note that on VAZ cars with the ABS system the sorcerer is not installed.
If we take cars of modern production, such as: “Priora”, “Kalina”, “Granta” as well as “VAZ 2108-VAZ 2115” and other modern cars, then on them the sorcerer is mainly located on the left side, the detailed location of the sorcerer is indicated in the photo below:
If you take cars of the classic family, people also call them “Classics”, then on them the sorcerer is located in the right rear part of the car body, see the photo below for more details:
Note! The location of the sorcerer is indicated by the number “1”!
When do you need to change the brake pressure regulator on a VAZ?
Usually, when it fails, the car begins to pull to the side when braking sharply. But with a working regulator, this is no longer observed and the car slows down exactly along its trajectory.
But even with a working regulator, the car can go into a skid during sharp braking, and why you ask! Yes, because in some cases, for the regulator to work properly, it simply needs to be adjusted.
Note! The regulator will need to be adjusted under the following circumstances: Firstly, if the car's shock absorbers or springs were replaced with new ones, and also if the rear suspension beam was changed or simply removed. Simply put, it is subject to adjustment for any significant changes in the vehicle's ground clearance!
Adjusting the braking forces of Lada Vesta
The operating principle of the system that regulates and distributes brake fluid pressure on Lada Vesta cars is fundamentally different from previous models, and there is no “witchcraft” in it. The Lada Vesta brake pressure regulator is directly connected to the ABS system and is electronically regulated depending on the speed of each wheel.
The ABS control unit transmits signals from speed sensors and analyzes the situation. The system “understands” any skidding and allows you to distribute the braking force with maximum efficiency. The pressure is controlled by the valves in the ABS hydraulic block, and there is no need for any magic. In addition, the electronics itself detects all malfunctions and reports them to the driver using a special lamp on the dashboard.
