To make it easier for the driver to control the vehicle, in modern cars, a hydraulic booster is installed on the steering column. One of the main elements of this mechanism is a pump that pumps hydraulic fluid through the power steering system. During operation, it is exposed to heavy loads, therefore, it is periodically necessary to repair the power steering pump.
You can change this unit with your own hands. It is even possible to replace a failed bearing. In this case, the power steering pump repair kit will come in handy, which can be bought at any car store.
Before deciding to carry out repair work, it is necessary to check the presence of liquid in the tank, as well as the compliance of its brand with the approved one for use on this machine. Often, the cause of the signs of malfunction is the appearance of air locks in the system. Therefore, if you suspect this, it is necessary to pump the hydraulics, removing all air plugs. In this case, the efficiency of the power steering can be fully restored. If, when checking the quality of the working fluid, it is found that it does not meet the standard, it is necessary to change it to the fluid of the desired brand. In the case when a decision is made to repair the power steering pump, it is required to prepare a workplace and the necessary tools, as well as materials for carrying out the work:
In order to remove the power steering pump and repair it with your own hands, you need to perform the following steps.
If it is difficult for you to fix the power steering pump with your own hands or there is no time for this, then it is possible to replace the power steering pump with a new one. This will significantly reduce the repair time. Also watch a video on the topic:
VIDEO
A very helpful article! And although I have a Hyundai H1 4 × 4 Starex 4WD, I think that these tips are very, very useful to me. My Gur is stuck (most likely - the bearing). Disassembled. As soon as I find a bearing and a repair kit for it, I will collect it. Wish I saw this article before. I had to suffer with unscrewing the return hose from the fitting. It was only necessary to put a wrench on the lower part of the fitting, and unscrew the upper one.
Very helpful article. I myself am now suffering with gur Ford EXP3 4.6. And howls and tight ... to sort out nodo ... There is already a mess in my head from studying and generally searching for information ....
For a long time, units of the power steering system of the Belarusian production of the Avtogidroutilitel plant in the city of Borisov have been installed on domestically produced cars. It is the main supplier to GAZ and UAZ plants. In addition to the Borisov hydraulic boosters, units from other manufacturers were installed on domestic cars. For example, a power steering gearbox manufactured in the Russian city of Sterlitamak (for Sobol, Gazelles and UAZs), power steering pumps manufactured in the Russian city of Yelets. There are also imported units - ZF, Delphi and some joint ventures.
All of these manufacturers have a slightly different set of typical faults. Therefore, when diagnosing the power steering on cars, you must first find out the manufacturer of the units.
When diagnosing a power steering, you need to formulate what specifically does not suit the system:
Next - collect information about the symptoms:
1.1 tight handlebars in one or both directions
After that, some conclusions can be drawn:
2.1.1 the sound can come directly from the steering wheel - hiss or hum - the gearbox is to blame, or from under the hood - the gearbox is not to blame, then we read the further paragraphs
3. Power steering system leaks are determined visually - the pump is flowing, the hose is flowing, the gearbox is flowing. Cases when oil is thrown out of the tank are associated with a pump malfunction (air leaks through the pump oil seal)
4. The steering wheel is too light, especially if it tries to turn it all the way, if it is pushed. At the same time, on the muffled engine, there is a large backlash of the steering wheel - a breakdown of the torsion bar in the power steering gearbox
In all cases of difficult diagnostics, when it is difficult to make a choice - which unit is faulty, it is necessary to use instrumental diagnostics, namely, to measure the pressure and fluid flow in the system.
To do this, a pressure gauge with a tap is connected to the system, which measures pressure up to 200 atmospheres. Start the engine. By turning the rudder, you can measure the pressure created in the system when the overlap creates the reducer. If this pressure is below the nominal (look-up table at the end of the article), then this means that either the pump does not develop the required pressure, or the reducer does not shut off properly.
To distinguish between a gearbox malfunction and a pump, the valve on the line is closed and the maximum pump pressure is measured. If the maximum pressure of the pump is normal, then it is concluded that the reducer does not overlap and that it is defective. If the maximum pump pressure is below normal, then the pump is to blame.
Diagnostics of the power steering with your own hands
If there is no pressure gauge, and it is not clear what is faulty - the pump is under-pumping or the gearbox does not overlap, then the folk method can be used.
Two are involved. On a muffled machine, one person finds a return hose going from the gearbox to the drain (to the tank). It's soft. You need to squeeze it with your hand. After that, the motor starts up and it is felt that a fluid flow has appeared in the return hose.
Further, the other person begins to rotate the steering wheel all the way, thereby blocking the flow with the gearbox.
If pulsations are felt in the return hose until the flow stops completely, then the reducer closes, and the pump is to blame, which does not develop the proper pressure.
If the flow in the return hose does not stop, then the reducer is to blame - it does not block.
And what is the first thing to change?
Post has been editedShurak 60: 29 May 2013 - 23:15
In fact, nothing complicated, but you need to find a suitable set of oil seals for your power steering. I usually change all the oil seals right away - the kit is only 200 - 300r. And then what to disassemble again.
I will try to describe the process later - there are pitfalls, there is simply no time now. wait a little, and maybe someone else will unsubscribe.
In general, it is real and even without a garage and adapt. I went through several times right on the street, but it is necessary that garbage and sand do not fly into the insides, the atoms will grab the surfaces and throw out the power steering.
I will now describe my process and it may not be the same as the tutorials. Forgive me if I confuse terms and names. Maybe someone will fix it later.
1. Removing the power steering. First, set the wheels to the straight position.
2. Analysis of the power steering. The main thing is to remember what was where.
A. First, remove the driven shaft.
B. Now we disassemble the drive shaft.
B. Disassembly of the drive shaft piston: (This is if the power steering wedges in both directions and generally does not work well). There is only one oil seal and it is never in the repair kits.
G. Change all the oil seals that you see with new ones. Be careful with the bottom PTFE. It can be stretched a little to dress. If you drag it, it will grab. The seals are located inside the side bearings on the shaft, and on the housing for the same bearings. One is on the piston and two on the top cap. Another one on the bottom of the drive shaft (I wrote about it above)
3. Assembling the power steering.
4. Power steering adjustment. Unfortunately, I do it by eye.
5.installation of power steering
6. Oil filling and bleeding.
Sorry for the unprofessional language. Maybe someone else will clarify something and suggest.
And what is the first thing to change?
Listen, I'm sorry, I didn't read your question right away.
But even so, it’s better not to climb the trains until it starts flowing. Power steering is disassembled only in case of leaks and poor performance.
Listen, I'm sorry, I didn't read your question right away.
But even so, it’s better not to climb the trains until it starts flowing. Power steering is disassembled only in case of leaks and poor performance.
Thank you very much and I did just that.
... And it flows from above, where the steering shaft enters. There the oil seal can be easily changed without removing the power steering. ...
Sergey, can you tell us more about the upper oil seal without removing the power steering, it flows right there. Thank you.
Sergey, about the regulation -
In other words, either both “from oneself” or “from oneself” depending on where to look, but threatens with a bias, they work as eccentrics.
Sergey, can you tell us more about the upper oil seal without removing the power steering, it flows right there. Thank you.
You disconnect the steering shaft, hoses, unscrew the four bolts on the cover and remove it, change the oil seal.
And interestingly, the hydrolab puts in Moscow some kind of “own” repair kits. I now think that every new one needs to be touched up and look for good cuffs. Almost everyone is wedging: someone to the right, someone to the left, someone in all directions. The reason is the wear of the seals, not the pump and the high pressure flexible hose. https://my.housecope.com/wp-content/uploads/ext/2735/i137/1004/63/dbced.
Yes, they do. And with nova they also put their details. I installed the power steering at the beginning of 2008.Since then, I have not even added a drop of oil there.
Yes, they do. And with nova they also put their details. I installed the power steering at the beginning of 2008.Since then, I have not even added a drop of oil there.
You most importantly tell me how their seals work at speed, I mean the steering wheel became wadded at speed or how was it? They write that when they are bulked up with their repair kits, the steering wheel becomes as it should be-wadded at speed. What about you?
... guys, and another question, what is wearing out in the power steering pump?, what can you change there? Especially cold. Will fill "dikstron".
can the belt slip? the backlash can be checked at the pump shaft.
... guys, and another question, what is wearing out in the power steering pump?, what can you change there? Especially cold. Will fill "dikstron".
Basically, the rotor blades are worn out, but the noise may not be due to them, the filter, valve, air in the system is clogged.Post has been edited sharky5: 13 May 2010 - 17:28
The purpose of the power steering is to provide more comfortable steering wheel control. Today, the power steering system is installed on the Gazelle and on many modern cars. You can learn more about the device, malfunctions and unit repair at home from this material.
Both the electric power steering on the Gazelle and the power steering are designed for more comfortable steering. First, let's take a look at the power steering device on the Gazelle. We are talking about both the Gazelle Business with a 405 engine and other models of this line.
So, what is the device of the system:
Power steering pump. This element of the circuit ensures optimal circulation of the consumable in the system, as well as pressure.
Steering gearbox with distribution element. This device allows you to provide an air flow necessary to direct the oil into the desired cylinder cavity or back into the tank.
Another component of the system is the cylinder. With its help, the conversion of the pressure of the consumable material into the movement of the piston, as well as the rod, is ensured.
The consumable itself, that is, oil. The fluid transfers the force from the power steering pump to the cylinder. In addition, the oil provides lubrication for all rubbing elements of the device.
Like any unit, the power steering can fail from time to time.
The main malfunctions and methods of their elimination are given below:
The system drive strap is worn out or is not tight enough. In this case, the belt is either changed or its position is adjusted.
The steering wheel turns poorly, this can be due to both wear of the strap and a low oil level in the system, a reduced number of engine revolutions, a clogged filter. In addition, the problem may be low pump pressure or an air lock in the lines. Depending on the problem, the solution may be to add consumables, adjust the idle speed, change the filter, or repair the pump. It will not be superfluous to check the tightness of the connections.
Mechanical failure in the operation of the steering system, you need to diagnose it.
If the pump does not work, you need to either repair it using a repair kit, or change the oil seals.
Steering elements are worn or the drive geometry is broken. Defective parts should be replaced.
If the hydraulic fluid is discharged through the relief valve, locate the leak and fix the problem. The reason may lie in the inoperability of the pump, you should check its working pressure.
Damage or wear of tires, it is necessary to identify the faulty elements and replace or repair them.
As you might have guessed from the previous paragraph, if the power steering on the Gazelle does not work, then this is due to the pump. To repair this element in a car with your own hands, you will need to purchase a repair kit in advance. You can buy it at any thematic store. The main difficulty in repair is that the pump is not collapsible.
The repair procedure is carried out as follows:
Dismantle the pump and disassemble in accordance with the instructions that come with the kit.
Clean the device from dirt, it is possible that there will be kinds of reasons for the failure on the case. Usually the problem lies in the wear of the oil seal, then it will be necessary to change it. When installing a new oil seal, the roller must be modified.
The gland can be installed in several ways. You can build a special recess on the outer part of the element, drill a corresponding threaded hole in the wall of the device, and then fix the gland with screws. You can also fix this part in the middle of the pump using the specially bent body ends.
When the replacement of the element is completed, it will be necessary to reassemble the system in reverse order. Please note that after the repair is completed, when the power steering is operating, you may hear an uncharacteristic noise for this. This is a grinding in of a new oil seal, so you should not worry about this. When the repair is over, it is necessary to change the oil in the system.
To facilitate control of the Sable, the manufacturer installs a hydraulic booster. If you have difficulties in repairing Sobol power steering with your own hands, our video will tell you quick and effective ways to restore the power steering.
If the owner noticed that the gur pump does not work, further repair of the unit on Sobol should begin with determining the reasons for the failure. The main ones are described below, as well as recovery options.
Poor system strap tension. The solution to the problem is position adjustment or replacement.
Mechanical problems. In this case, the repair of power steering (GUR) Gazelle, UAZ, Sobol, Volga must begin with diagnosing the state of the components.
The steering wheel turns poorly. The reason for this can be either a low oil level in the system, or belt wear. You should also pay attention to the engine speed and the condition of the filter - it may be clogged.
The pump refused to run. To restore the power steering pump of a Sable car, you need to purchase a new repair kit and replace all seals / oil seals / other parts.
The presence of extraneous sounds and clicks. The reason is severe wear of the controls. To view the power steering repair manual, open the video on this page.
Absence of normal pressure of the working fluid. Practice shows that this is due to poor operation of the pump, or the presence of a leak in the system.
Wear or damage to tires. The only solution is to install a new kit. Riding on damaged tires is highly discouraged.
For further repair of the power steering pump quickly with your own hands, our video will always be useful. The wizard gives detailed explanations, and also shows the sequence of actions when repairing power steering on Sobol.
VIDEO
We repair the power steering pump in the event of malfunctions described in the article "Features of the steering".
We recommend performing work on the removed pump (see Removing the power steering pump). We clean the pump from dirt. We drain the oil from the system (see Changing the oil and filter element). For clarity, operations are shown on a removed pump.
Gazelle Sable. Removing the power steering pump
Remove the engine mudguard (see "Removing the engine mudguard, page 164).
Drain the oil from the power steering system (see "Changing the oil and filter element" p. 112).
Remove the accessory drive belt (see "Replacing and adjusting the tension.", P. 56).
... and remove the hose. The hose connector is sealed with two copper washers (the washer on the pump side is thicker).
Install the pump in reverse order, then fill in oil and pump the system (see the relevant sections).
Gazelle Sable. Bleeding the steering hydraulic system
We pump the steering hydraulic system to remove air from it that got there after
changing the oil, filter, as well as after other work related to the violation of the tightness of the system. Signs of air presence: steering wheel wedging when the direction of rotation is suddenly changed, foam in the reservoir.
We hang up the front wheels, add oil to the tank to the norm (see "Adding oil to the hydraulic booster", p. 112).
We turn the steering wheel 5-10 times to the extreme positions in both directions.
With the steering wheel in the middle position, we start the engine for 10-15 s, while the steering wheel is not rotated.
After muffling the engine, add oil. We start the engine and, at idle, smoothly turn the steering wheel in turn in both directions until it stops, but without holding it in the extreme positions. After the release of bubbles in the reservoir stops, stop the engine.
We check the oil level in the tank and bring it to normal.
Today we will pay special attention to the power steering, intended for installation on Gazelle cars. In today's article, we will take a closer look at the repair of the Gazelle power steering. So, the presented article contains answers to such fairly common questions:
What is a power steering?
How does the power steering work?
What is the repair of the hydraulic booster?
How to properly replace the power steering fluid on a Gazelle car?
How is the repair of the power steering pump on a Gazelle car correctly carried out?
Power steering, or, as it is abbreviated as power steering, is the hydraulic system of the vehicle, part of the steering mechanism, which is designed to facilitate the direction of movement of the vehicle while maintaining the necessary feedback, as well as to ensure the stability of functioning and the unambiguity of the specified trajectory. In addition, the power steering is designed in such a way that in the event of its failure, the steering wheel will function, but the steering wheel in this case will turn a little harder. Power steering is one of the most important elements of steering any vehicle. The main purpose of the power steering is to create side forces at the time of steering wheel rotation due to the presence of an electric drive. Almost all modern vehicles are equipped with power steering.
Experienced motorists highlight several main advantages of the power steering on Gazelle cars, such as:
High level of reliability;
High information content;
Low fuel consumption;
Ease of adjusting the technical specifications of the manual.
The main disadvantages of the hydraulic booster for Gazelle cars include:
Great cost;
Complexity of establishment;
Significant changes in the steering system of the vehicle;
Needs regular maintenance.
How is the power steering for Gazelle cars arranged?
Pump. Thanks to this device, the circulation of the working fluid and pressure is ensured.
Steering gearbox with distributor. With its help, an air flow is provided, which directs the oil into the required cylinder cavity or back into the tank.
Cylinder. With the help of the cylinder, the fluid pressure is converted into the movement of the piston and rod.
Oil that transfers power from the pump to the cylinder and also lubricates all friction pairs.
The power steering oil needs to be changed periodically, and the frequency of replacement depends on the condition of the steering wheel, the characteristics of the fluid, and the brand of the steering wheel. That is, when the steering wheel turns hard or you hear noise when cornering, you need to add a little or completely replace the power steering fluid. It is necessary to change the fluid in the hydraulic booster almost every sixty thousand kilometers, this is a partial repair of the hydraulic booster, so to speak. So, how to replace the fluid in the power steering on a Gazelle car?
Due to active use and heavy loads, it is often necessary to repair the power steering pump. The complexity of the repair lies only in the fact that the power steering pump for a Gazelle car cannot be disassembled, which means that it does not have any covers or retaining rings, but pump repair is still real. First you need to remove and disassemble the power steering pump according to the instructions that come with the kit. After that, you need to thoroughly clean it from dirt and dust, and also inspect it to find the cause of the breakdown.The cause of the breakdown may be the wear of the oil seal, in which case it must be replaced. When installing the oil seal, it may be necessary to modify the roller.
There are several ways to secure the new bearing to the pump structure. You can make a recess on the outside of the bearing, drill threaded holes in the pump wall, install a new bearing and secure it with sharpened bolts. Alternatively, you can mount the bearing in the middle of the power steering pump using the folded edges of the housing. After the repair is completed, you need to assemble the power steering pump in the reverse order. Please note that after the repair, new parts may create some noise, but this is just grinding in new parts. Be sure to replace the power steering fluid after repairs.
VIDEO
We will repair the main unit of the power steering pump car control system.
Those who have already encountered car breakdowns know for sure that it will be a little costly to make repairs in service centers. Much easier than ever, the most important thing is to do it yourself. With a little knowledge and effort to this process. The inherent content of the material will allow you to get acquainted with an independent repair of the power steering pump. You can also carry out diagnostics to identify malfunctions in the operation of the pump itself.
The elements that make up the pump.
The most difficult dismantling is to release the pump from disconnecting the supply hoses with pipes and draining the hydraulic fluid. Initially, we loosen the belt or uncouple the gear drive, then unscrew it from the attachment to the engine block. We flush the housing from the accumulation of dirt.
Next, we disassemble the pump body itself, very carefully remembering this moment how everything is attached (or otherwise there will be a problem during assembly), then we thoroughly clean all the components from the inside from dirt.
With a detailed examination of the internal parts of the pump, we determine their working condition.
4. Uneven surface of the inner part of the cylinder (stator).
We examine the rotor, paying attention to the grooves: their edges should be smooth and sharp, without chips and notches.
Next, we look at the inner working surface of the stator, it often happens that its wear is the cause of problems with the power steering pump.
All that we may need in the upcoming work is this!
alcohol (best of all White Spirit, aka solvent gasoline or a can of WD40 liquid);
sandpaper (from P2000 to P1000);
cloth or soft paint brush;
small file or file;
electric drill;
We use sandpaper to clean the seats of the rotor blades.
Rotor cleaning is reduced to the elimination of irregularities and burrs of the grooves, as well as to grinding the rotor surface.
Gloves are best as the edges of the rotor are very sharp; try to keep the movement smooth and even for a smoother finish.
The algorithm is as follows:
First, we make a rough cleaning with a file, then smooth it with coarse sandpaper and bring it to mind with a sandpaper.
It is easier to adapt an electric drill using a drill and sandpaper. You will get a kind of mini-grinder by screwing sandpaper onto a drill with a diameter of at least 12 mm (against the movement of the drill rotation). When grinding with a self-made unit, you must try to evenly distribute the load over the entire surface, unnecessarily not zealous and not forgetting to change the skin from coarse to the finest.
Using a drill and sandpaper, we eliminate the unevenness of the stator surface.
Having finished with grinding, we will bring the power steering pump to its original working condition. Carrying out the assembly process in the reverse order, it will be useful to first check whether the shaft rotates easily inside the pump itself.
The final touch will be to install the cover in place, with the preliminary installation of a new gasket. During the assembly process, the cover is easily tightened with four bolts. It is best to pull them crosswise, thereby achieving an even, accurate fit of the cover plane to the stator.
Now the pump is now again in a new state. Nevertheless, it will take a long time before you will have to repeat this procedure again!
Watch a video lesson of self-repair of the power steering pump.
Video (click to play).
Watch a video lesson how the power steering system works.
Remove the axle bolt that secures the pump to the bracket and replace it with a screwdriver or a metal rod of a suitable diameter in order to lock the pulley. Then unscrew the nut that secures the pump pulley.
