DIY power steering tube repair

Steering and power steering is a complex unit that is constantly mechanically damaged, and is also exposed to stress due to climate change. The power steering system is represented by a connection of pipes and hoses with high pressure. Due to the tightness of the elements, pressure is ensured. Due to the irrational operating conditions of the system and the dishonesty of the car owners, damage occurs, which entails the need for prompt and urgent repair of the power steering and replacement of individual parts. During a competent diagnosis, these breakdowns can be determined by eye.

There are several types of reasons why tubing breaks and cracks occur:

1. Manufacturing defects are characterized by low crimp quality at the junction of fittings, pipes and hoses. This is due to the use of ineffective elements of the toolkit for work.
2. Damage of an operational nature is provoked by cuts in the high pressure hose. The basic phenomenon is the formation of sagging of high-pressure pipes due to an irrational length indicator.
3. Damage due to inadequacy of the characteristics of the high pressure hoses to the operating conditions. Here, it is possible that a fitting breakage and a rupture of the hose are possible. A high pressure indicator is formed, which makes the permissible parameter higher.
4. Formation of damage on the outer layer, which occurs when the temperature regime is not observed.

In order to be able to protect the hoses from damage, the driver must seriously check the characteristics of compliance with the conditions of use. The first factors to be taken into account are pressure, maximum allowable, bending.

1. Increased level of corrosion on fittings.
2. Excessive break in the HP sleeve.
3. The occurrence of abrasion of the RVD in the upper part.
4. Severe blockage in the hose.
5. Depressurization in the area of ​​joints.
6. Fittings are torn off the hose.
7. Leakage in connecting mechanisms.
8. Inner rubber problems.

In all cases, the power steering hoses are repaired or replaced. Let's consider how these processes take place.

You can contact a service station, but with knowledge of the subtleties and nuances of work, it is quite possible to achieve a good result if you start doing it yourself. The activities consist in the replacement of fittings or high pressure hoses. In all cases, crimping of the coupling is required.

The work is carried out in a clear sequence:

Damage to high-pressure elements is the result of a wheel spin requiring force. After that, elasticity is lost, changing the size of the holes in the distribution. The last element, in turn, is responsible for the replacement in the differences that are observed in the pressure in the cylinder hydraulics. In the course of this, the sleeves of the power steering are noticeably worn out, designed for certain parameters associated with pressure, which depends on the type of car.

The range of fluctuations of the value is 70–130 kgf / cm². In the case of such parameters, it is not possible to repair the damaged hose and pipes of the power steering.

There are several options for fixing the problem.

1. Complete replacement of the power steering tube.
2. Replacement of only damaged elements (installation of fittings for a new hose).

• The front part of the vehicle is lifted by means of a jack.
• The steering wheel is turned to the left until it stops.
• The tube from the power steering is pushed onto the syringe.
• The available liquid is completely pumped out.
• 100% detachment of the high pressure hose is carried out.
• The holes in the hydraulic plan system are plugged.
• A new hose is selected taking into account the thorough observance of the parameters.
• If you do not take into account the last paragraph, there will be changes in the functions of the power steering.
• The wizard installs a new hose and returns the pumped-out fluid back.
• The quality of the work performed is checked.

Thus, it will not be difficult to repair and replace power steering hoses with your own hands, if you take into account the advice of professionals and know the intricacies of performing all the work.

High pressure hoses are used in pneumatic and hydraulic structures. In the automotive industry, they are widely used in steering. Thanks to the built-in hydraulic booster, the driver has the opportunity not to apply significant load on the steering wheel when cornering.

However, under certain operating conditions, various deformations of the tubes or sleeves are possible. Subsequently, this leads to unstable operation of the unit, which can be corrected by repairing high-pressure hoses of the power steering with your own hands or with the help of specialists at a service station.

Hoses, which are more commonly referred to as high-pressure hoses, are flexible pipelines, for which the main task is to pump working fluids. Specially prepared motor oils or working fluids based on mineral oils, aqueous solutions of emulsols, glycol, and also greases are used as the transported material.

It is difficult to imagine the operation of a hydraulic booster without high-quality flexible hoses that can withstand the required pressure and an extensive pipeline system. In addition to the direct responsibility for pumping the working fluid, such hoses act as dampers (compensators), increasing the operating period of the connecting elements, fittings, fittings and the system as a whole.

Vibration absorption by flexible elements contributes to these results. The negative side of the phenomenon is that periodic replacement or repair of the power steering hoses in worn areas is required. After all all scuffs or kinks will soon lead to the tube leaking.

In addition to working under high pressure, the hydraulic booster hose must have a reduced susceptibility to the used working fluids. Thanks to this, its inner surface is made on the basis of oil-resistant and petrol-resistant synthetic rubber.

The outer surface is protected by layers of wear-resistant rubber. Under certain circumstances, this layer plays the role of thermal protection. It can have the following surfaces:

The outer and inner layers are separated by a metal braid. This gives the entire structure the required operational strength and admissible rigidity. Wire layers alternate with rubberized elements.

It is customary to separate the following types of hoses:

• Coiling... During the manufacture of this product, the turns of the wire are braided evenly around the entire perimeter.
• Braiding... Each turn covers the sleeve at a certain angle to the common axis so that it crosses with the turns of the previous layers. This technology increases the strength of the structure and can operate at higher pressures than the previous type.

The frame for the sleeve in some models is textiles. The geometrical and physicochemical parameters of wire and rubber are standardized for various applications.

Motorists may encounter different types of hydraulic damage during operation, after which the power steering hoses need to be repaired. You can designate the following points:

1. Manufacturer's marriage... The peculiarity is typical for under-known manufacturers of hydraulic equipment. Breakage is characterized by poor-quality crimping of the sleeve or fitting joint. This happens when hardware is out of order or misconfigured.
2. Operational output... Damage is caused by wear during the operation of the mechanism. The main problems are cord breaks, cuts and frayed areas. This often occurs due to sagging of the hose due to the wrong length.
3. Structural inconsistencies... Failure occurs due to the installation of equipment that does not meet the characteristics specified by the automaker. In such situations, the wire may break or the fittings may break due to the mismatch of the pressure in the system with the permissible value for the hose.
4. Disagreement in temperature or chemical characteristics... Damage to the structure can occur during operation at ambient temperatures for which such rubber was not designed, as well as during the use of aggressive chemicals in the structure of the working fluid.

Damage to the power steering hoses

All characteristics and permissible operating parameters for each hose are indicated by the manufacturer in the instructions for use.

Hydraulic malfunctions with which the further operation of the vehicle is not recommended:

• fittings are significantly damaged by corrosion processes;
• significant break in the sleeve;
• significant abrasion of the outer part of the hose;
• the presence of complete or partial blockage inside the sleeves;
• lack of sealing of connections;
• stripping the fitting from the bore diameter;
• fluid leakage at the joints;
• deformation or damage to the inner surface from high pressure or excess temperature.

In all cases, sleeve replacement or repair is required.

Based on the nature of possible damage, it can be assumed that the most common repair of power steering hoses is to tidy up the fittings or replace individual parts of the hose. To carry out the replacement, crimps with couplings will be necessary.

DIY repair tools

The work algorithm can be as follows:

1. The damaged sleeve must be disconnected from the system.
2. The new hose will need to be the same length to avoid creating unnecessary sagging. Measurement is carried out from nipple to nipple. At the same time, we select a hose that satisfies all geometric data and pressure parameters. This will be helped by the marking indicated by the manufacturer on the outside. The inner diameter will also be indicated there.
3. When repairing a high pressure hose, the ends are stripped both outside and inside to a metal braid. The procedure is faster with the use of debarkers.
4. Fittings are selected according to geometric parameters and technological thread data. Measurements are easy with a caliper and thread gauge. Domestic and foreign fittings may differ among themselves according to several criteria, so it is better to carry out measurements yourself.
5. The fittings are crimped using crimping equipment, using in each case suitable removable cams.
6. Using the control probe, we determine the quality of the work performed. At specialized factories, this operation is carried out using special industrial stands.

For non-standard connections, repair kits with recommended fittings must be used. It is possible to detach the head of the old fitting, if it is not damaged, and solder it to the part to be crimped. This option is used in extreme cases, since the effect of this repair is short-lived.

Hose damage in most cases occurs due to frequent turning of the steering wheel with great effort. Wear occurs at the hose connected to the restriction valve.

When installing and repairing power steering hoses, it is necessary to take into account that the allowable pressure in the system can vary depending on the car models in the range of 80 ... 130 kgf / cm 2.

Such significant performance indicators do not allow the use of any types of clamps during repairs. You must choose the most appropriate option:

1. Complete sleeve replacement.
2. Partial replacement of a deformed or worn-out area with the installation of fittings on a new sleeve.

Replacing and installing a new hose is carried out according to the following points:

• using a lift or jack, the front axle must be raised;
• the steering wheel is turned to the left as much as possible;
• a tube is put on the end of the medical syringe for pumping out the residual working fluid from the tank;
• after pumping out, the hose must be disconnected and the hydraulic holes must be plugged;
• a new sleeve with operating permissible characteristics is selected so that the operational characteristics of the unit do not change;
• in place of the old hose, a new one is mounted, after which the working fluid is poured into the system.

If the work is carried out correctly, the hydraulics are fully operational.

here is another victory of mine. this time I won the high pressure hose of the hydrach. sawed off the hose, cut off the crimp of the hose from the fitting on emery, sawed off the end of the fitting a little, since it rested against some kind of iron tube inside the hose and did not climb to the end, put a clamp on the hose, put the fitting into the hose and tightened it

by the way, at the expense of clamps, a friend went to Moscow and bought 10 pieces there (minimum batch)

Miniatures

Posted by: Nixer, 05 March 2000 19:55:17

If someone is not friendly with soldering with an oxygen-propane burner, then they may not read further, or read and find those who will help (for example, refrigerators-air conditioners, as I did 🙂

Applied on the same unfortunate experimental Sierra ”82 (V6 2.3) already in 98 and works faithfully and truthfully to this day.

The high-pressure hose - from the power-steering receiver to the steering rack - is a thick, 2-layer reinforced rubber tube (when removed, then cut in half - it was interesting :), crimped at the ends with metal knobs with copper (hardened) tubes and nuts (fittings). I did not measure the pressure in it, but it looks like it was much higher than atmospheric :), and the ATF return hose from the rail to the power steering tank is quite the opposite - simple petrol-resistant rubber, pulled to the tubes with clamps.
So, a thick infection cracked under the knob itself, and all ATF under pressure on the road and flowed out (chagrin, and nothing more).
Accordingly, I hobbled somehow to the parking lot (you quickly get used to good things), and the next day - to go shopping. Maybe someone is still worth crap, but for a 82g.v. car, although in excellent condition, there is only: native-Ford-from-warehouse-in-chukhna-only-for-$ 50: * o On disassembly such engines are very rare, so they offered to relax. The hose cannot be repaired.

The Russians are not a BUILDER. Methodology:
1. I cut off the end copper tubes under the very knobs.
2. I take a piece of copper tube 2 times longer than the hose itself (the section, I don’t remember exactly, it seems like 8 - coincides with the internal section of the native hose, but goodbye problems with resistance to ATF flow).
3. I “release” the copper 8-ku with a burner - the hardened infection was slipped in, then it will have to be bent in place.
4. With a torch I gently solder the cut fittings from the native tube (assembled with nuts, essno) to the ends of the 8-ki (they should not be connected end-to-end, but with the help of a 3 cm section of a larger diameter tube, 10-ki, for example). Do not spare gumboil and solder - tightness is needed!
5. I twist the resulting structure so that in the middle I get a couple of turns of 10-15 cm in diameter. The twisted tube protects against transmission of engine vibration to the steering column and the body itself.
6.I screw the structure into place (GRU tank - rail), bending it in place along the way.
7. Fill in ATF, Start engine, Check for leaks.
8. I rejoice and rejoice at the living power steering.

Advantages of the method: cheap and cheerful (a copper tube with a diameter of 8 mm, a length of about 1 m - it costs a penny in a store. Work - by yourself or as you agree).
Possible disadvantages: if you solder yourself and out of habit, it takes exactly one evening, but if you agree with the “solders”, you can faster.

Repair power steering hoses

Steering and power steering is a complex unit that is constantly mechanically damaged, and is additionally subjected to loads due to climate change. The power steering system is represented by a connection of pipes and hoses with high pressure. Due to the tightness of the elements, pressure... Due to the irrational operating conditions of the system and the dishonesty of the car owners, damage occurs, which entails the need for prompt and urgent repair of the power steering and replacement of individual parts. During a competent diagnosis, these breakdowns can be determined by eye.

There are several types of reasons why tubing breaks and cracks occur:

1. Manufacturing defects are characterized by low crimp quality at the junction of fittings, pipes and hoses. This is due to the use of ineffective elements of the toolkit for work.
2. Damage of an operational nature is provoked by cuts in the high pressure hose. The basic phenomenon is the formation of sagging of high-pressure pipes due to an irrational length indicator.
3. Damage due to inconsistent hose performance high pressure operating conditions. Here, it is possible that a fitting breakage and a rupture of the hose are possible. An indicator is formed high pressurewhich makes the allowed parameter higher.
4. Formation of damage on the outer layer, which occurs when the temperature regime is not observed.

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:

• you need a key for "12", as well as heads for "14" and "24";
• you will need a snap ring puller;
• prepare in advance two copper washers, a gasket for the rear casing, two O-rings and an oil seal, they can be replaced by a power steering pump repair kit;
• be sure to have a bearing marked "6202" and an outer diameter of 35 mm;
• to pump oil out of the tank, you need a large syringe and a container;
• clean the workbench and cover it with clean cardboard to disassemble the pump;
• prepare fine sandpaper and a cleaning cloth.

In order to remove the power steering pump and repair it with your own hands, you need to perform the following steps.

1. Slightly loosen the axle bolt that secures the pump unit to the bracket using the hole in the pulley. Loosen the tensioner retaining nut completely and remove the belt.
2. Using a syringe, pump out the hydraulic fluid from the reservoir. Turn the steering wheel right and left until it stops so that the oil is completely out of the system, do this several times to completely clean the pipelines.

1. Loosen the clamp on the hose that runs from the expansion tank and remove this line.

1. Remove the bolt that secures the high pressure hose from the pump to the system.
2. 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.
3. Pull the released power steering pump unit up and put it in a specially prepared place. Remove dirt and oil from the unit housing.
4. Remove the bearing retaining ring with a puller.
5. Remove the rear cover mounting bolts. Gently pry it off with a small screwdriver and remove it, making sure that the rotor blades do not fall out of the housing.

1. Take out the blades and put them on pre-prepared numbered pieces of paper so as not to confuse anything during assembly. Attention! Remember the position of the assembled blades. When installed in a housing, the rounded part of these blades must be turned outward.

1. Remove the plate and all parts underneath.
2. Drive out the shaft by tapping gently with a screwdriver.

1. Press the bearing off the pump shaft.

1. Change the unusable bearing for a previously prepared one.

1. Check the parts of the pump set for defects and wear. Clean surfaces from dirt and roughness. Experts say - simple cleaning of internal parts reduces gaps and allows you to extend the operation of this unit without replacing any parts.

1. Reassemble in reverse order. It is imperative to change the oil seal, O-rings and washers for new ones prepared in advance.

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: