In detail: do-it-yourself brake hose repair from a real master for the site my.housecope.com.
Anything can wait on the road ...
History with broken brake hose happened about 10 days ago.
I decided to go for a drive around the city at night because of the good weather, the drivers were playful, they chased, I also joined.not resorting to grinding the curb with discs.
When one circuit does not work, the ABS automatically stops working and, with sharp braking, the car turns)
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The order of work performed to replace the brake hose.
The braking system plays an important role in the operation of any vehicle. If at least one of its elements is faulty, then this can lead to disastrous consequences. Therefore, one should be especially vigilant to monitor the health of all elements of this system.
An important component of any braking system is the brake hose. Cracking and wear on brake rubber hoses is a common problem, and should be lubricated with silicone grease and checked periodically to prevent this. If there is any suspicion of a defect, you should immediately replace the brake hose, because its malfunction in the future can have a detrimental effect on road users.
Video (click to play).
Sequencing:
1. First of all, the vehicle should be prepared to perform the necessary operations. To do this, place it on a flat surface, install stops under the wheels on the side opposite to the suspended wheel.
For safety reasons, we install stops under the wheels.
2. Use a jack to raise the front of the machine. Place the car on the "blocks" for better stability. Remove the wheel using a wheel wrench.
To access the brake hose, lift the car.
3. Treat all replaceable fasteners and bolts of the brake system with a special penetrating lubricant. This will ensure that they are easily loosened. This work must be done in advance so that the grease penetrates deeper into the joints.
We will take care in advance by covering the threaded joints with this solution.
4. Using pliers, remove the retaining bracket from the body bracket brake hose. Holding it with a wrench 17 (so that the tip of the brake hose does not move), unscrew the brake pipe union using a wrench 10.
Using pliers, remove the bracket that secures the hose to the body.
5. Pull the brake hose out of the bracket. Make sure the brake pipe has a protective cap from the bleed nipple. If not, then brake fluid leakage is inevitable. Using a wrench 10, unscrew the fixing bolt of the bracket holding the brake hose and remove it.
Prevent brake fluid from escaping from the disconnected hose.
Install the rubber cap from the bleed nipple.
6. Use wrench 14 to loosen the brake hose mounting bolt and remove it.
We unscrew the bolt that secures the hose using a 14 wrench.
7. Installing a new hose should be done upside-down. It is also necessary to replace the copper sealing washers.Having installed a new brake hose, you need to bleed the brake system.
Bleeding brake systems:
1. To bleed the brake system, fill the brake fluid reservoir to the max level.
Top up the tank on the master brake cylinder with brake fluid.
2. Next, remove the protective cap from the fitting and put a transparent hose on it, and then lower it into the container where the brake fluid is located. This prevents air from entering the brake system.
It is imperative that after replacing the brake hose, bleed the system by removing the air.
3. To bleed the brakes, you cannot do without an assistant. He must press and hold the brake pedal. Ask an assistant to press the brake pedal all the way 3 times. In this case, you must unscrew the bleed fitting using the key 10.
We unscrew the bleed fitting with a key.
Trapped air will collect in the liquid barrel. After that, you need to tighten the union by repeating the operation again. You need to repeat until the air leaves the system. For bleeding, you need to top up with a liquid of the brand that is used in your automotive system.
As you can see, replacing the brake hose is no big deal. But this work also requires a serious and responsible attitude. Indeed, not only your life, but also those around you, depends on the quality of its implementation. In the course of performing the work, you need to use attentiveness and caution. But personal qualities will not be enough - you also need to have certain skills. If you are unsure of your abilities, then contact the service station for help.
It happens that during the operation of the car, for various reasons, it is required replacement of brake pipes. Sometimes the repair and replacement of these parts should be carried out not even because of a breakdown, but for preventive purposes. Why this happens and how to independently repair the brake line, we will try to explain in detail just below.
The pipes and hoses of the brake system are used to transmit the force that flows with the help of the fluid from the pedal to the master cylinder, and then to the workers, which are mounted on the supporting discs. Tubes are connected to cylinders and distribution units using cone couplings.
It should be noted that it is quite possible to conduct an external examination of the state of the brake system on your own, however, in the event of any malfunction, it is better to seek help from a specialized center, where diagnostics and qualified repair of the car system are carried out, as well as fluid replacement.
According to the manufacturers' recommendations, the performance check of all vehicle components should be carried out in accordance with the routine maintenance schedule. The brake system is diagnosed once every 2 years (or every 50,000 km). Rubberized hoses must be replaced after 125,000 km, regardless of their technical condition .
The main malfunctions of the brake system:
a significant increase in the braking distance of the vehicle;
when you press the pedal, a pulsation appears and a squeak is heard;
large free travel of the brake pedal;
fluid leak;
overheating of brake drums;
when you press the pedal, the car starts to move to the side;
cracking brake hoses;
uneven pad wear.
VIDEO How to repair a damaged line yourself? Repairing brake pipes requires a certain amount of experience from the driver and the ability to use locksmith tools. But not everything is so complicated. The following is a step-by-step description of the process of restoring the damaged system.
First you need to unscrew the tube from the brake cylinder or caliper.
With the help of a pipe cutter, the pipeline is cut at the right place.
The damaged area is removed.
The edge of the tube is degreased with gasoline.
Clamp the tube with pliers so that its edge protrudes by about 50 mm.
With the help of a drill inside the tube, a chamfer is removed at the edge.
At the end, you need to remove the remnants of the shavings.
Next, a fitting is pushed onto the tube.
The end of the tube is inserted into a special device and expanded.
The repaired pipeline is purged with compressed air and connected to the pipeline using a special adapter. Now all that remains is to bleed the brake system, and the car is ready for further operation.
VIDEO
What you need to pay special attention to during a visual inspection of the brake system:
metal tubes should not have obvious mechanical damage and various deformations;
rubberized hoses must be flexible without cracks or breaks. Particular attention should be paid to the quality of the termination of the hoses in the ferrules. Do not allow fuel and lubricants to come into contact with them;
the fixing brackets must be in a satisfactory condition;
at the junction of the pipes with the master cylinder, tank and line, no liquid seepage is allowed.
The simplest repair work can be done even at home. For instance, replacement of the front brake hoses is carried out in the following sequence :
Park the vehicle on a level surface.
Remove the front wheel.
Unscrew the brake line union, while holding the hose with a wrench so that it does not turn.
Remove the bracket and remove the tip from the bracket.
Unscrew the hose connection from the slave cylinder.
Unbolt damaged hose from brake pipe.
Screw in a new hose.
Further assembly of the system is carried out in the reverse order. Make sure that the hose is not kinked. To control this, a longitudinal colored strip is applied to it. In the same way, the hoses on the rear axle are replaced.
The latest KIA ceed models suffer from brake hose disease due to their premature death.
Further, it is simply the process of restoring old ones to a new RVD and at the same time the reason why it failed.
Actually, here it is the original brake sleeve, then there will be a couple of them.
In photo 2, what is clamped in a vice has a non-collapsible Climp design, that is, a disposable one, where the fitting is an integral part of the crimp sleeve.
You can saw it off by the Bulgarian's wife, or it can be done on a band saw, in the latter case, the parts will not need to be adjusted before Argon welding.
Why it is impossible to cook with an electrode: during welding, the slag forms micro-shells that become oily channels and under pressure the hydraulic fluid will squeeze out, in the photo it is in oil, constantly flowing while lying down and sawn - so that it would be clear:
Next, we weld two halves: a fitting with a nipple with a shank with a lock for a standard hydraulic coupling
We select a high-pressure hydraulic hose, in our case, a 1SN-6mm high pressure hose designed for Pwork = 225bar is suitable, which will be enough for the car's brake system. Whereas the burst pressure has a 4-fold margin.
Then we crimp the prepared fittings in a hydraulic press and check with gauges the process of crimping the product
At the exit, we get such a product that meets the requirements for pressure, elasticity, and should not be a rigid structure.In addition, we get the opportunity to re-replace the hose without welding operations, which I doubt a steel cord is stronger than a piece of thick rubber from the original sleeve.
It is not allowed to operate the vehicle with cracks on the brake hoses. Failure to comply with this rule can lead to brake failure and a serious accident. However, what to do in situations where the problem is discovered far from home? Finding the right brake hose at your local auto parts store is not possible for every vehicle.
To restore the integrity of the brake hose, you must have a certain amount of raw rubber, several liters of gasoline, access to an oven or an open fire, and a supply of brake fluid. In addition, a set of tools must be available to remove the damaged part. As a rule, a jack, a wheel wrench, and 13 and 10 mm keys are sufficient. However, the exact set of keys required depends on the model of the faulty vehicle.
The dismantled hose is thoroughly washed in a separate container with gasoline, foreign inclusions (sand, dirt) are washed out of the cracks. After that, the hose is dried, using fine sandpaper, they pose a risk, degreased with gasoline or acetone.
As a result of the repair, the damaged hose should have a smooth rubber surface without cracks. The part must be cooled, and then installed in its original place. After installing the brake hose, the brakes must be “pumped” (squeeze air out of the brake system). Usually this manipulation is carried out together. However, in the absence of a partner, you can restore the brakes yourself.
When pressed, the brake pedal travels about half the distance to the floor and stops.
With prolonged pressure on the pedal, it does not smoothly sink below its normal position.
The car brakes normally, when braking it does not lead to the side.
There are no drips of brake fluid in the area of the hose and cylinder (drips that have arisen during the pumping process should be wiped off).
The brake system with a remanufactured hose is not able to withstand full loads. When driving, you should observe enhanced safety measures, avoid sudden braking, keep a considerable distance in front of the vehicle in front, be ready to apply emergency braking using auxiliary techniques.
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Hello, friends. I need your help. I was engaged in the suspension and there was a need to remove the brake caliper. The repair was long, several days, so the battery was discharged and I decided to run the engine a little, and then stop using the energy of the battery (music, light bulb). I started it without a second thought and with the drive belt I rubbed the rubber hose at the brake caliper to the sheath. In appearance, she did not suffer much, but still. Replacing the hose can be costly in the worst case, so I want to assess the situation and take action if possible. There were thoughts of smearing the rubbed place with sealant and wrap it tighter with something, and then also attach a collar. In general, if there are any options, then I will listen to them with pleasure.
2014-05-10 18.52.27.jpg 154.28K 1 Number of downloads:
Judging by the section of the hose, it seems to me that there is still a reserve
zavodksie-tormoznye-shlangi-v-razreze.jpg 198.37K 1 Number of downloads:
Post has been edited by Vitaliy: 10 May 2014 - 19:37
The only sensible option is to buy a new hose. I have been working as a driver for more than 20 years, I have never heard of hydraulic brake hoses glued, even on the clutch.
Hello, friends. I need your help. I was engaged in the suspension and there was a need to remove the brake caliper. The repair was long, several days, so the battery was discharged and I decided to run the engine a little, and then stop using the energy of the battery (music, light bulb). I started it without a second thought and with the drive belt I rubbed the rubber hose at the brake caliper to the sheath. In appearance, she did not suffer much, but still. Replacing the hose can be costly in the worst case, so I want to assess the situation and take action if possible. There were thoughts of smearing the rubbed place with sealant and wrap it tighter with something, and then also attach a collar. In general, if there are any options, then I will listen to them with pleasure. 2014-05-10 18.52.27.jpg
Judging by the section of the hose, it seems to me that there is still a reserve zavodksie-tormoznye-shlangi-v-razreze.jpg
I remembered a couple of proverbs: "where it is thin, there it breaks" and "kroilovo leads to the popalov" change the hose and sleep well,
The only sensible option is to buy a new hose. I have been working as a driver for more than 20 years, I have never heard of hydraulic brake hoses glued, even on the clutch.
I also did not see the glued hoses, but the camshaft split into two parts, and then welded and installed in place, I personally saw (my brother, my cousin, either put everything on welding or on poxipol :-))
I will change if recovery is impractical maneuvers. There is a struggle in me. It seems that I did not wipe it so deeply, but it seems that it is somehow stupid to restore the hose.
if you ever want to fly into someone's ass or something good into a wall, because of a suddenly torn hose, then glue.
Post has been editedpjv: 10 May 2014 - 20:18
Hello, friends. I need your help. I was engaged in the suspension and there was a need to remove the brake caliper. ...
Theme renamed - clause 2.7 of the rules
On the topic, the top starter himself probably realized that he asked nonsense, forgive me for being straightforward, change the hose, judging by the photo, you can get there before replacing it, but you can't tell it live, if the cord is rubbed even a little bit, then the hose is dangerous, emergency braking it can not withstand
zy - recently my hose broke on a penny in 75 - went to the sidelines - so he was torn - those purely external rubber sheath was torn - braking to half - the pedal failed - I still managed to do a few strokes and so as not to enter the equal 4 colleagues, I went in the pines))))))) think to yourself, your life and health and your loved ones are priceless, but here is some kind of hose, even more so in St.
Post has been editedniv26: 10 May 2014 - 21:28
Resolved. Changing the hose. Do not judge strictly for a stupid question. The cord is frayed and there are some fluff in the photo. Hope it goes smoothly at both ends. Thanks to all.
Relatively cheap rubber brake hoses are reliable, durable, but the pressure of the fluid inside "inflates" them during braking. And it turns out that the hydraulic system “wastes energy” for other purposes, and also “took away” precious moments for bad work. The brake lever travel is lengthened and the brake response to the lever is slowed down. Needless to say, vigorous driving requires instant brake response.
Reinforced tube, bolts, fittings, bent under
It is provided by reinforced brake hoses. They are made of hard plastic braided with strong steel wire. This pair can withstand pressures up to 600 atmospheres without swelling. In addition, the steel braid protects the plastic tube from external damage.
Assembling the hose: A - put the nut on the hose; B - pull the "olive" over the tube with the conical end until it stops. The sleeve of the tube must remain on top of the "olive"; B - insert the fitting into the tube; D - screw on the nut and, turning the union in place, tighten it.
The British company Goodridge has been producing brake hoses with steel braid for over 35 years.
Nowadays, there are two types of them on sale: with already installed fittings (connecting tips) and in the form of a set. The first option is more convenient - no fuss with it: install it, bleed the brakes - and go. But sometimes, for example when tuning, the hose needs to be shortened or lengthened. It happens that the fitting is not installed at the angle desired by the owner. And the tips are sealed at the factory, and their position cannot be changed. In this case, a set of hose and nozzles that you can assemble yourself is indispensable.
The hose will be cut for you in the store (with a margin of length). The collapsible fitting allows multiple disassembly and assembly. It consists of a fitting, a nut and an "olive". Also included is a special bolt and copper spacers. "Olives" are deformed during assembly, and when disassembling - be careful! - sometimes get lost. Therefore, they are sold separately as consumables. Fittings are available straight or bent at different angles - 20, 45, 90 degrees. Cut off the hose carefully - the braid is made of stiff steel wire and if it becomes loose it will be difficult to squeeze again.
When assembling, first slide the nut onto the hose. Between the plastic tube and the braid insert the "olive" with the conical part forward, until it stops. Then insert the fitting tube into the hose - it will go in with a little effort.Finally, tighten the nut. In this case, the soft "olive" will slightly crumple and crimp the hose on the fitting tube, and the nut will pull the braid to it. Do not rush to tighten the nut until it stops: the deformed "olive" will make it difficult to install the fitting in the desired position. Previously, without tightening the bolts from the kit on the caliper and the master cylinder to the end, install the hose in place and only then tighten the nuts on it. Then tighten the bolts. Remember to install copper washers on both sides of the nipple. They are disposable, so use a new one each time you rebuild the assembly.
Tip: 1 - nut; 2 - "olive"; 3 - fitting.
Recently, the kits have been sold from the official representatives of Goodridge in Russia - the companies "Mister Moto" and "Mirny Atom Motorsport".
It happens that during the operation of the car, for various reasons, it is necessary to replace the brake pipes. Sometimes the repair and replacement of these parts should be carried out not even because of a breakdown, but for preventive purposes. Why this happens and how to independently repair the brake line, we will try to explain in detail just below.
1 When is it necessary to replace the brake pipes and other system repairs?
2 How to repair brake pipes?
3 Replacing the front brake hoses with your own hands
The pipes and hoses of the brake system are used to transmit the force that flows with the help of the fluid from the pedal to the master cylinder, and then to the workers, which are mounted on the supporting discs. Tubes are connected to cylinders and distribution units using cone couplings.
It should be noted that it is quite possible to conduct an external examination of the state of the brake system on your own, however, in the event of any malfunction, it is better to seek help from a specialized center, where diagnostics and qualified repair of the car system are carried out, as well as fluid replacement.
According to the manufacturers' recommendations, the performance check of all vehicle components should be carried out in accordance with the routine maintenance schedule. The brake system is diagnosed once every 2 years (or every 50,000 km). Rubberized hoses must be replaced after 125,000 km, regardless of their technical condition.
The main malfunctions of the brake system:
a significant increase in the braking distance of the vehicle;
when you press the pedal, a pulsation appears and a squeak is heard;
large free travel of the brake pedal;
fluid leak;
overheating of brake drums;
when you press the pedal, the car starts to move to the side;
cracking brake hoses;
uneven pad wear.
Video (click to play).
How to repair a damaged line yourself? Repairing brake pipes requires a certain amount of experience from the driver and the ability to use locksmith tools. But not everything is so complicated. The following is a step-by-step description of the process of restoring the damaged system.
First you need to unscrew the tube from the brake cylinder or caliper.
With the help of a pipe cutter, the pipeline is cut in the right place.
The damaged area is removed.
The edge of the tube is degreased with gasoline.
Clamp the tube with pliers so that its edge protrudes by about 50 mm.
With the help of a drill inside the tube, a chamfer is removed at the edge.
At the end, you need to remove the remnants of the shavings.
Next, a fitting is pushed onto the tube.
The end of the tube is inserted into a special device and expanded.
The repaired pipeline is purged with compressed air and connected to the pipeline using a special adapter. Now all that remains is to bleed the brake system, and the car is ready for further operation.
What you need to pay special attention to during a visual inspection of the brake system:
metal tubes should not have obvious mechanical damage and various deformations;
rubberized hoses must be flexible without cracks or breaks.Particular attention should be paid to the quality of the termination of the hoses in the ferrules. Do not allow fuel and lubricants to come into contact with them;
the fastening brackets must be in satisfactory condition;
at the junction of the pipes with the master cylinder, tank and line, no liquid seepage is allowed.
The simplest repair work can be done even at home. For example, the front brake hoses are replaced in the following sequence:
Park the vehicle on a level surface.
Remove the front wheel.
Unscrew the brake line union, while holding the hose with a wrench so that it does not turn.
Remove the bracket and remove the tip from the bracket.
Unscrew the hose connection from the slave cylinder.
Unbolt damaged hose from brake pipe.
Screw in a new hose.
Further assembly of the system is carried out in the reverse order. Make sure that the hose is not kinked. To control this, a longitudinal colored strip is applied to it. In the same way, the hoses on the rear axle are replaced.
The safety of the driver and passengers of the vehicle directly depends on the performance of the braking system. After a certain mileage, its components wear out, one of which is the caliper. Nevertheless, it is quite possible to repair the brake caliper, although most often it fails due to the acidification process of the guides or pistons.
Why is this dangerous in practice? In the event of a malfunction of this unit, the brake pads begin to wear out unevenly. The same goes for brake disc wear. As for the pads, there may be increased wear, for example, external to internal. Uneven wear indicates that the pistons are putting too much pressure on only one of the pads, while the other does not take part in the process. An urgent repair or replacement of the caliper is required, without waiting for it to finally jam.
This unit of the brake system may break down due to improper maintenance, or due to insufficient quality. The main reasons why caliper repair may be required are as follows:
improper operation, which is associated with filling the guides with poor-quality grease - because of this, the boot swells and later "sours";
in the future, repair of the brake calipers may be necessary due to the ingress of moisture on the guide, which leads to a breakthrough of the boot;
another reason is the piston itself, the body of which is also vulnerable to moisture ingress;
a low-quality working fluid (brake) can corrode the piston from the inside if the concentration of water in it exceeds the norm.
Video advice for repairing a caliper with your own hands:
VIDEO
It's easy to find them - these are special bolts that are attached to the lugs of the case. They need to be changed as soon as the foci of the appearance of corrosion become noticeable. The repair process will look like this: we unscrew the old guide, and insert a new one in its place.
The main thing is not to forget about high-quality lubrication, as well as check the condition and tightness of the anthers - they should not have cracks or breaks.
The return movement of the piston in this unit is provided by the cuff. Firstly, it creates tightness, and, secondly, it acts as a kind of spring. When the piston moves, it undergoes slight deformation, but then returns to its previous state, slightly pressing it into the housing. Determining the malfunction is quite simple - if you hang out the wheel, then it should rotate freely as soon as you press or release the brake pedal. There should be no traces of overheating on the discs themselves, otherwise you will need to repair the caliper yourself.
When performing a visual inspection, we must make sure that there is no noticeable difference in thickness in terms of the size of the outer and inner pads. The piston should move so that, when pressed, it easily sinks into its body.Its surface should not have visible traces of dirt or particles of corrosion. You also need to conduct a superficial examination of the anther and make sure its integrity.
We pass on to the description of the repair itself. The algorithm will be something like this:
In short, as soon as you are faced with overheating or uneven wear of the brake pads, odors and noise, you can be sure that the performance of the braking system will not be the same. Pay immediate attention to the condition of the caliper and, if necessary, refer to the above instructions for repairing the caliper.
