In detail: do-it-yourself high-pressure gur tube repair from a real master for the site my.housecope.com.
Modern cars that are supplied to the market are increasingly equipped with a power steering system. The hydraulic booster is part of the steering mechanism and makes it easier to control the vehicle. The driver does not have to put in a lot of effort when turning the steering wheel. For the stable operation of the hydraulic system, it is important to ensure a constant and free flow of the working fluid between the constituent elements inside - this task is solved with the help of special hoses. Over time, this structural part fails.
The Lenhydravlika company offers its assistance in the replacement of connecting elements. All work is performed by experienced MAZDA service specialists (address: St. Petersburg, Bobruiskaya st., 11). Our clients expect good discounts on services. Alternatively, car owners can also repair the power steering high pressure hoses with their own hands.
Flexible tubes included in the power steering structure are called high-pressure hoses. Elements play an important role in the operation of a hydraulic structure. Through the hoses, liquids and gases pumped into the system are transported. In addition, high pressure hoses absorb vibrations, increasing the service life of the steering elements. Hose connections are subject to significant stress. In addition to mechanical deformations and bends, the tubes of the power steering system are tested by high pressure, temperature drops, and withstand the aggressive effects of chemicals, on the basis of which automobile fluids are produced.
The service life of the pipes largely depends on their quality and the reliability of the connecting fittings. Hose construction includes inner and outer layers, as well as a metal braid. The outer part of the tubes is made of thermally stable, wear-resistant rubber. The inner surface of the hose is synthetic rubber. The braid gives the hose extra strength, allowing it to be safely used in extreme conditions.
Video (click to play).
The masters name a number of reasons why the connection hose needs to be repaired:
1. Poor crimp quality or defective tube.
2. Inadequacy of the parameters of the installed hose to the conditions of use (too high pressure, violation of the temperature regime, incorrect choice of the length of the product).
3. Damage caused by long-term operation of the high pressure hose (hose leaks as a result of a break or cut, corrosive processes and loss of sealing of joints, abrasion of the surface).
A malfunction of the high pressure hose is indicated by hum and extraneous noise when the pump is turned on, a decrease in the level of liquid in the tank of the car, and unclear steering. Before carrying out repairs, it is important to accurately determine the place and nature of the damage to the high pressure hose - you can do this yourself or contact the MAZDA service specialists for help. Professionals in the auto repair shop will perform the work efficiently and inexpensively.
Each car owner closely monitors the technical condition of his steel "horse", because the safety of its operation depends on it. Worn or damaged power steering hoses are a common cause of breakdown and malfunctioning steering. Regardless of the nature of the problem, it is solved in two ways - full or partial replacement of the RVD. The pressure level in the power steering system is quite high - 70 to 130 kgf / cm2. At these rates, hose clamps cannot be used to secure the hoses.It is also not recommended to solder fittings to hoses that are subject to high stress - this can only be used as a temporary measure.
When planning to carry out a complete replacement of the hose of the high pressure hose with your own hands, adhere to the scheme:
- Raise the front of the car and turn the steering wheel to the left as far as it will go.
- Put the end of the hose onto the syringe and pump out the technical liquid from the tank.
- Plug the holes in the control system after complete dismantling of the high pressure hose.
- Select a new part with suitable parameters and replace it.
- Top up the required volume of pumped-out liquid back.
In some situations, it will not be necessary to replace, but to repair the hose (RVD) with your own hands. Subject to certain rules and the presence of a tool, it is easy to perform such manipulations:
- Disconnect the damaged hose, carefully measure it and look at the markings. When selecting new hoses, be sure to match the parameters.
- The ends of the hoses are thoroughly cleaned inside and outside to braiding using a debarking machine.
- Select reliable and suitable fittings - fittings.
- Fastening of fittings to the sleeve is carried out by means of crimping equipment.
- Check the quality of the work done.
Care, accuracy and strict adherence to the instructions will allow you to quickly and efficiently repair the power steering high-pressure hoses with your own hands. But if you have any questions or difficulties in the process of work, be sure to contact the specialists of our car service. Extensive work experience allows you to replace the high pressure hoses in the shortest possible time.
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:
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.
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.
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.
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:
The damaged sleeve must be disconnected from the system.
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.
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.
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.
The fittings are crimped using crimping equipment, using in each case suitable removable cams.
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:
Complete sleeve replacement.
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
Cars change, friends and the forum remain. [my.housecope.com/wp-content/uploads/ext/1209]
Message CHigor 23 Dec 2010, 07:51
Message nik1976 »05 Mar 2011, 20:32
Message vlad.gorsch »29 Mar 2011, 11:10
Message jenja 04 Apr 2011, 19:09
Message OGB »10 June 2011, 15:06
nope, and yet it’s somehow difficult for you. Or to assemble with glue, or with complete dismantling and spending 1500r. NOT ice.
I say it again - a sable hose, 2 turning parts and 2 brass solders. 3 hours of work and 800r. money. 4 years in operation.
Message CHigor »10 June 2011, 19:06
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 cross section, I don’t remember exactly, it seems like 8 - coincides with the internal cross 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 where necessary. 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.
Deon »Fri, 07 Oct 2011 7:14
Hello everyone! So my hose has filled up in the place of rolling. Used costs from 2 thousand. Repairs are a little cheaper and they are not always taken. I searched the Internet for how to fix it myself and found one Temka on the Nissan-Silfi Forum ():
Bought Silfi in 2004 volume of 1.8 liters. bumped into a problem-when turning the steering wheel there was some kind of hum. Having examined properly, I did not find anything. After 2 weeks of operation, I noticed that the level in the hydraulics had dropped, and somehow in the parking lot I saw a drop under the car. There was a leak from the high-pressure hose, and quite a bit and with sharp turns with the steering wheel from side to side. A new hose costs about 10-12 thousand. The question was resolved with a friend like this. We covered the rolling place with a sealant that is suitable for the box, then wrapped this place with fiberglass and filled it with epoxy. After drying, they put everything in place. Pumped the dextron bay to the level. The most interesting thing is that the hum (noise) while turning the steering wheel disappeared. Thank you all. Maybe someone will come in handy.
Who thinks what? Maybe try? I want to take a chance, but a few questions remain: 1. What kind of fiberglass? Where is it sold? And in which stores is epoxy sold? 2. How to remove and install the power steering hose correctly? (Drain all dexron? How to pump correctly, etc.?) Thank you.
