All About Brake Lines – Flaring Tips

Are you trying to replace your brake lines yourself and wondering what tools, tricks, and tips you will need to complete this task? Well we have a guide of pro tips and tricks that will help you flare your brake lines, and make sure it’s done properly. Brakes themselves, although complicated in general, are fairly straightforward in how they work. The role brake lines play in the braking process is key to vehicle safety, so properly flaring brake lines correctly is extremely important. Let us take a look at how to flare brakes the right way.

  • First of all, knowing what kind of flare is needed on your vehicle is important, because interchanging flare types is a bad idea. There are three basic types of brake line flares, each found on different kinds of braking systems and brake lines. Single flares are uncommon because they have a tendency to crack and leak, which is something no one wants their brake lines to ever do. This makes single flares most likely a type you won’t be needing to use. The other two flare types, double flares and bubble flares, are what your vehicle will most likely need. So before starting the project, research or look to see what kind of flares you will need for your brake line.
  • Secondly, after figuring out what kind of flares are needed, you will need to decide what brake line flaring tool you want to buy. Some may be cheaper but harder to use, others may be on the more expensive side but have more features and create better flares. The basic wingnut style, single/double flare tool, the universal hydraulic flaring tool or the Pro flaring tool, are the most commonly flaring tools used for do-yourself-projects. The wingnut is cheap and small, and can be used on the car, but making flares is difficult and making perfect flares is even harder. The Universal hydraulic can also be used on the car, and makes easy flares, but can also over-flare the brake lines as well. They have different interchanging parts that allow you to make many different flares for different needs. The Pro is difficult to use in the car, but if used in a vice, makes near-perfect flares. Choosing your flaring tool can make this part of your brake line projects either easier or harder, so choose wisely.
  • Thirdly, now that you know what flares are needed and which flaring tool you will be using, it is now the time to flare your brake lines. Understand, if you have cut your break line with a tube cutter, to get your line to the right size, then it should make the flare come out evenly. If you have used a grinder or hacksaw, it may cause the flares to come out inconsistent, entirely because of a brake line not being cut evenly. Also, if you notice burrs or debris from cutting on the ends of the brake lines, be sure to deburr them before flaring. This will make sure your flare is uniform and prevent leaks. Follow the directions of your flaring tool to ensure a perfect flare.

The process of fitting lines for your brake is extremely important as brakes are nearly the most important part on your vehicle. The difference between doing good, clean work on your brake lines and doing sloppy, lousy work is, without exaggeration, the difference between life and death. When working on the brakes yourself, keeping the importance of your brake lines in mind will help you do the best job possible, and make certain you create flares that are ready to take the full pressure of safe braking system.

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