How to Bend Brake Lines/Tips for Bending Brake Ines and Fuel Lines

How to bend brake lines. Brake lines play a crucial duty in your automobile. It can be worn or harmed for a variety of reasons. But bending or flaring the brake lines can conserve both money and time, and also it does not take much effort to do.

Brake lines play a crucial duty in your automobile. It can be worn or harmed for a variety of reasons. But bending or flaring the brake lines can conserve both money and time, and also it does not take much effort to do.

There are two processes that develop headaches - flare and also flex. This write-up concentrates on the task of bending the brake and gas lines. You can bend it by hand or use a device, but a good curling iron can go a long way. You can additionally flex it initially, but it requires to be accurately gauged for your vehicle.

The level of complexity depends on the length of the line you are working with. The brief line is much easier to work with than the long line. Regardless, the procedure coincides.

It is much better to prevent bending the brake line by hand since the pipe bender can bend the brake line much better than the hand. The road will certainly not bend, and the turn will certainly be carried out properly. This write-up will direct you to bend pipelines correctly with a pipe cutter.

Tips for Bending Brake Lines and Fuel Lines

Why Bend Brake Lines

Brake lines can be pre-bent to the specific specs needed for a certain line on the lorry. Alternatively, they can be acquired as a straight pieces that can be curved to your liking. When changing a brake line, the ideal situation for changing the line would certainly be to buy an OEM substitute so that the substitute line matches precisely with the original. This becomes crucial when trying to align the accessories on both ends of the line.

It's not a good concept to flex brake lines by hand because you can kink the line. That is why there are different tube benders offered on the marketplace for properly bending brake lines. These tube benders will certainly distribute the flexing force evenly allowing for smooth bends and also stopping twists while accurately bending the line.


There are several sorts of devices offered, from easy radius devices to much more accurate lever-action benders. The secret to making use of a flexing tool is to obtain a high-quality device that won't kink the line. While Poly-Armour ® lines stand up to kinking (unlike ordinary steel), it is still possible to kink the line.

Simple bender

These devices are single-piece and also utilize a hook-type latch to lock the tubing in position. You use one hand to hold the line and device with each other, while the various other hand bends the line. These devices are relatively economical as well as are really helpful for ruining a piece of tubing.

They do not protect the line, made complex bends can conveniently become out of line, where your bends do not match the direction they need to be. While they might assist you to finish the job in a pinch, this is not an excellent tool for bending tight bends on a small line.


This type of device utilizes mechanical benefits to make flexing lines easier. While the tubes can still turn (enabling complex designs to come to be wrong), it is easier to handle with a lever-action bender. Lever-type benders commonly have several size placements, and also mark for differing degrees of bend. A lot of these tools are created for certain radius bends, there are devices for limited bends and tools for big bends.

You can manipulate this to a degree by rearranging the line, making a larger distance, but you can't make a smaller radius than the tool you have. Side note-- The inexpensive variation of lever-action benders that have an interchangeable die do not work extremely well, they will typically simply kink your line.


This is a really standard bender meant mainly for copper and aluminum tubes. There are two types, interior or external. Both avoid television from collapsing and kinking while hand bending. Best for mild, big diameter bends.

When you have the proper devices, you can obtain your parts prepared. If you are replacing a line, then you must have the existing line to utilize as a recommendation. Start at one end, and also re-create the line bend for the bend. You can even include some tape as you go to maintain the bends in the line.

If you are developing a brand-new line without a referral, you must make a referral. Bailing cable works actually well for this task. It stayed curved, and you can use it similarly as you would an existing line. Plus it is truly cheap and also has a thousand other uses around the shop.


There are four kinds of hard-line utilized for stopping systems: steel, soft steel, stainless steel, and also nickel-copper alloy. Each has its advantages and also downsides.


The most common type of hard-line is galvanized mild steel. This is what the factory makes use of for every one of the brake lines. Steel is inexpensive, resilient as well as very easy to come by. The drawbacks are that steel is corrosion, and also it is tough to bend. The corrosion is the biggest problem right here. Brake fluid is extremely hygroscopic, meaning it soaks up water. Although the system is secured, there is still moisture available on top of the tank.

As the brake liquid ages, it ends up being increasingly more saturated with water. Water, as well as steel, equates to corrosion. The lack of oxygen slows down the procedure, yet not entirely. This is what results in messed-up brake calipers and wheel cylindrical tubes. To fight this, the steel is galvanized. The issue of bending the brake lines can be gotten over with bending devices because steel tubes is not easily curved by hand.

Soft steel

The even more unique tubing choices are pricey, whereas steel is cheap. Where routine steel lines are difficult to flex as well as prone to corrosion, there is another service-- Poly-Armour. This type of brake line is the most frequently sold at parts shops, including all NAPA Vehicle Components Shop. Poly-Armour ® is made from low-carbon steel, making it much easier to flex.

To safeguard against deterioration the steel is covered with Polyvinyl Fluoride (PVF), which is a plastic finish, that is baked and also treated to the steel line. Unlike galvanized steel, the PVF coating does not flake or chip, leaving the steel substrate secured against rust, to the tune of 30% better than galvanizing. Numerous new vehicles are being developed with Poly-Armour lines.


For the utmost in hard lines, stainless steel is the option. Stainless steel lines are impervious to corrosion, so they last for life. Great, issue resolved. Hang on there buddy, stainless lines have a couple of disadvantages-- particularly, the expense. Stainless steel lines are expensive, 3 to 4 times more than normal steel lines.

Stainless-steel hard lines are not too hard to flex, yet flaring them is. You require a truly excellent flaring tool to make great quality dual flares with stainless steel tubes. For show cars and trucks as well as road poles, the sleek appearance of stainless steel is unrivaled.


Being used given that the 1970s, nickel-copper hard lines have the stamina of steel, are corrosion-proof, and simple to flex. Since the lines bend so simply, they can be snaked with the framework quickly. Made from 90-10 copper to nickel, NiCopp ® lines are moderately valued as well. The greatest downside of NiCopp ® lines are schedule, as they might be tough to locate locally.

how to bend brake lines

How to Bend Brake Lines: Refine as well as Steps

The bender has 2 arms, one is long, and also the various other is short. The lengthy arm can do utilize. The head has 0 to 180-degree marks that will certainly assist to measure the bending.

You have to start the wrong flexing place so the tube's length will be correct, which is extremely crucial in the brake line.

 Some Points You Should Do

Initially, draw out the brake which required bending. If it is inside the auto and also you need to make the procedure under it, you can boost the car to do so. Most of the time, you can bring the brake line out to work.

You can bend a number of tubes to get the excellent one. Now, take one item of brake line from your garage or parts shop as well as curved it with 2 bends. Matching the line with your cars and truck, which is rusted or worn, is a little challenging, so you have to be careful about it.

When you are making the line, use a coat hanger that can hold the cord so you would certainly know where to flex and also how long it must be.

Without the appropriate flaring device, you can not have an excellent companion with a cylindrical tube and also leakage. So, have the excellent one for a wheel cylinder and master cylindrical tube factors to consider.

Take one piece of steel tubing as well as flex it 9-0 levels. Prior to flexing, you can flare the tubing head to know if the bend is close adequate or not. The flaring would certainly be not good after flexing, as well as it may take time to fix.

Flexing Refine

The bending procedure is crucial for repairing the braking system appropriately with having the correct size tubing of the existing line. So, follow the actions correctly for having an ideal flexing of the steel, carbon steel, or any other metals.

Make the Line

Put the lines together and also pick the bending area by marking it with a marker. It must coincide as the flaring line with the flaring tool. After observing the point, set the tubes in the bender so the significant point would certainly set right on the 0. As soon as you establish the tubing in 0 marking the location, push the various other management and also begin flexing.

Hold the bender with your hand properly as well as move the deal efficiently so the tubes can go 0 to 90 levels.

Bend the Tube

After flexing television, launch the deal with, you will see an ideal 90-degree tubing with no twists. Hold the tubes with your finger to make a far better placement.
You can gauge the recently bending tube with the previous one if the tube is bent appropriately or otherwise.

Final Bending

Set the two-tubing alongside each other so you can see if they remain in the very same airplane as well as very same line. One is straight, and the various other is going away on the best side. Although the airplanes of those 2 bends are different. Mark the bender so you can discover it easily when required.

After that, put them end to end as well as flip as well as lined them up. Take the straight flexing tubes to the benders and set it in 0 marks. Hold the management as well as put a little stress on it.

After making it 90-degree angle efficiently, if there is bounce back, touch the 90 levels as well as set it up. After getting 2 substance flexes, lay a layout at the top to function the line better.

The most essential variable that you need to remember when flexing brake lines- don't neglect the flares and installations. Even experienced pros occasionally forget to slide the suitable all the way to the flare prior to bending the line, which means you need to either correct the alignment of the line or cut as well as flare the line.

Additionally, when making bends near completion of the line, if you require to include a flare, do it BEFORE flexing the line, your flare tool requires area ahead of the bend, see to it you have enough.

Bending brake lines is simple, yet it does take a little practice to obtain efficient it. Whether you are plumbing in your brakes, a transmission colder, or hardening your air-ride system, flexing tubes is needed. With a little method, you will be able to grasp the art of bending brake lines.

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