Hydraulic and electric power steering are designed to ease the effort the driver makes when turning the steering wheel. The EUR is a more advanced mechanism compared to the power steering, since it uses an electric drive. The system does not contain oil or other hydraulic components, which increases its reliability. Typically, AvtoVAZ engineers install electric steering systems on passenger cars, and less often - power steering. Both types of power steering are found on the Lada Priora.
Steering diagram
The design and principle of operation of the Priora steering mechanism
On front-wheel drive vehicles, due to their design features, it is impossible to install a classic steering mechanism. The first thing engineers encounter is lack of space. A standard mechanism cannot be installed, even if a transverse engine is used instead of an in-line engine. For this reason, the classics, which are not distinguished by modest dimensions, have been replaced by a compact steering rack, which transmits the force when turning the steering wheel to the front wheels.
To save as much space as possible, on Priora and many other cars the rack is rigidly fixed to the front panel of the engine compartment - between the engine and the passenger compartment. It connects to the steering column, which extends into the cabin and ends with the steering wheel. The steering rack is a toothed metal rod. Its teeth engage with the steering wheel drive in the form of a shaft. They are located relative to each other at right angles. This is an improved worm drive.
The driver rotates the steering wheel along with a shaft, the teeth of which move the steering rack inside the casing, engaging with a toothed rod. There are holes in the rack casing through which the steering ends (rods) are connected. In the center of the rack itself there are holes for attaching these tips, which are attached to the steering knuckles of the front wheel strut using rods and special levers.
Installing power steering - step by step instructions
This instruction is intended for VAZ 2110 cars, which do not have power steering at all. Such models were produced a long time ago, but they can still be found on the road today. In this case, the car can be upgraded with your own hands.
You can install the power steering yourself; for this you will need a power steering kit - today it can be purchased for about 20 thousand. From the tools, prepare a set of keys and screwdrivers; you should also take care of the amplifier fluid in advance.
- We dismantle the timing case and install the bracket on three bolts. There are already holes in the interior, so there is no need to drill new ones. Now we install the pin on which the roller will later be installed. There are no holes for it, so we make new ones. Let's put on a video.
Here you can see the fasteners that need to be removed. The photo below shows in detail what needs to be sawed off. After this, securely fix the pump on the bracket and cover it with a pillow. The assembled unit should be placed on the engine, or rather, in the place where the generator was mounted.
You should undertake such work only if you already have experience in servicing the electrical and power plant of the VAZ 2110. Power steering is directly related to safety, so if you lack experience, it is better to turn to the experts.
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22 comments
and the arm crashed, there was a lot of play
Change the rack, replace the power steering pump, install all the hoses, install the crap in one word
Well, that’s understandable, but then how do you connect the steering wheel with the rack?
Andrey, apparently changing the steering shaft also means
Andrey, in terms of money it’s easier to repair yours and faster
one euro costs 13 + ruble rake 4
It’s probably easier to buy an EUR then
but the car is 7 years old, it’s not worth it
I always ask myself the question, do I have Eur or Gur? 8 year old, hatch
Andrey, look at the price of the rack and steering wheel)) plus the pump belt and many little things, it will be more expensive
I like eur better
but still the Gur will be more expensive than changing the EUR..
Alexey, I honestly don’t remember, but this is the defining thing, if there is something, right?
Yaroslav, well, from clearly visible and barrels with hydraulic fluid
Andrey, change the car
rack - 12, pump - 4, hoses - 3, tank - 500. Steering shafts - 1200. Liquid - 1300
I found it for 4500
Yaroslav, when you turn on the dashboard, the EUR light comes on, does this mean something or is your dashboard completely dark?
Yuri, what does this have to do with it, I also assumed that when the steering wheel is not working properly, something also lights up, so don’t bother with such a tone
Source
Design and operating features of power steering and power steering
To make steering easier to turn and increase comfort, either hydraulic or electric power steering can be used. Both amplifiers have both pros and cons.
Structurally, power steering is a system of high and low pressure hoses containing oil driven by a pump. Power steering fluid must be poured into the reservoir near the pump. It only works when the engine is running. The driver turns the steering wheel, and at this time the fluid flows through the distributor under pressure created by the pump to the steering mechanism. It enters the working cylinder, puts pressure on the piston, which begins to move, and facilitates the rotation of the steering wheel. When moving in a straight line, the liquid flows back into the system reservoir.
Power steering diagram
Advantages and disadvantages of power steering
In the case of a hydraulic booster, the main disadvantage is the bulkiness of the entire system. But it is cheaper to produce and maintain, and this affects the price of the car. At the moment, power steering is found mainly on budget class cars, which include Priora. An amplifier of this type is also installed on expensive, powerful SUVs. This is explained by the fact that the power steering is capable of transmitting greater torque transmission power to the steering. In this regard, it outperforms an electric booster, but there are still more disadvantages:
- In a car equipped with a hydraulic booster, it is not recommended to hold the steering wheel in the extreme right or left position for more than 5 seconds. Otherwise, the oil in the power steering on the Priora begins to heat up, which can lead to system failure.
- The mechanism requires constant monitoring of the oil level, inspection and replacement of drives, hoses, and pump.
- The pump depends on the operation of the engine, which means it takes a certain percentage of power from the power plant. If the power steering does not work when driving in a straight line, this percentage of power is wasted.
- Such a system does not imply setting operating modes depending on the speed of movement or the angle of rotation of the steering wheel.
- At low speeds, the steering mechanism provides good sensitivity, but at high speeds it becomes less pronounced.
Engineers compensate for the last drawback by using a steering rack with a variable gear ratio. Power steering has already become an outdated system; designers are no longer involved in improving it.
Electric amplifier design
The design of the EUR is simpler than that of the power steering. It consists of an ECU, a torque sensor, a steering angle sensor and an electric motor. There are no hoses or fluids here. The electric motor is mounted directly on the steering rack itself, and torque is transmitted to it via a torsion shaft built into the steering mechanism system.
In the case of power steering, the force is facilitated by liquid, and in the electric booster the current is responsible for this. When the driver turns the steering wheel, force is transmitted to the steering rack. At this time, the torque sensor transmits data to the electronic control unit. The controller calculates how much current needs to be sent to the electric motor to optimally facilitate steering rotation. Since the force must be uniform, the speed of movement and the angle of rotation of the steering wheel are taken into account.
If the steering wheel rotates without the vehicle moving or at low speed, as when parking, the electric motor receives maximum current and the steering wheel turns easily. When driving at medium and high speeds, such force is no longer required, and the controller supplies a lower current.
Pros and cons of EUR
The electric booster is a more modern system with high potential for modernization. It is not without its shortcomings, but there are fewer of them than the power steering:
- high price,
- The electric motor cannot provide high power, so it is installed only on passenger cars.
The disadvantages are leveled out, since the design of the electric amplifier is constantly being improved.
The EUR for the Priora has many advantages. The system is easy to maintain due to its simple design. The only part that requires inspection is the rolling bearing. The ESD mechanism has more compact dimensions and can be installed on the steering shaft in the cabin, freeing up space in the engine compartment. Due to this, the durability of the structure increases, since there is no exposure to temperature changes and high humidity.
The electric booster does not take power away from the engine, which saves fuel. The drive only operates when the steering wheel is turned. The ECU is responsible for the operation of the amplifier, with the help of which you can adjust the operating mode of the EUR, taking into account the operating conditions of the vehicle. The electric booster is not afraid of extreme steering positions. Driving at high speed makes the steering wheel with ESD more sensitive.
Communities › VAZ: Repair and Modification › Blog › Installing power steering on a VAZ 2111 with an 8-valve engine
Next, everything was assembled in place, the spider was installed, having previously wrapped it in a titanium thermal bandage. This is where the fun begins - installing the tension roller. As already mentioned, there is simply nowhere to attach it. The idea of posting it was inspired by these photos found on the Internet.
Comments 125
Question, do you have a drawing of this roller mount?
I also want to set it for myself, but many say that there will be a lot of force on our motor, it seems to me that this is complete nonsense, can you tell me from your own experience?
Complete nonsense. The same story as about the air conditioner. Place it and don’t worry.
So I think this is complete nonsense, thanks for the review, now I’ll definitely install it.
No matter what anyone says - YOU ARE WELL DONE! How much effort and most importantly not in vain, but with benefit! And those who troll this work (like “It’s not easier”, “It’s not better”...) either have their hands in the wrong place or have no money! So good job! Good luck on the road and off! Signature!
Easier. But I don’t need it easier, I need it to be comfortable and safe. Everything on this topic is described at the very bottom.
Even for me, the steering wheel turns easily on the PP even in summer!
excellent job done, but... you didn’t like the option of installing an EUR?) it’s simpler, the money is about the same, but the power doesn’t drop either)
cool!) How much did this pleasure cost?
Well, in winter it’s so easy for me to turn the steering wheel in the snow, but in summer I’m already used to the basins and it doesn’t give me any problems. I am against guru on basins.
clamps are valid. and in color))
Well done, of course, but it’s better to install the power steering, and so there’s not much power, and now the steering wheel is loading the engine
I wouldn't do that
I also installed the 2110 16v from the Priora this summer. The most inconvenient thing was to tinker with the steering column in the interior.
thank you) by the way, how are they in terms of resources? )
According to the seller, the warranty is 40 years. I've had them for a little over a year - it's a shame to complain. I've never done a pull-up before. Silicone is not afraid of either high or low temperatures, oil-resistant. Reinforced in 3 layers with synthetic thread. Very tear resistant.
That’s also what I understood when I saw the pipe from the end part))
Damn, well, it’s generally a sin to ask such questions from Moscow
