Brake lines are an essential component of a vehicle’s braking system. Over time, they can become damaged or corroded, necessitating repair or replacement. One way to repair brake lines is by flaring them. Flaring the brake line seals the end of the line to ensure a tight, leak-free connection. In this article, we will discuss how to flare brake lines in 12 easy steps.

1. Gather the necessary tools: Before you begin, ensure you have all the required tools, including a tubing cutter, flaring tool kit, brake line wrenches, sandpaper, and a clean cloth.

2. Prepare the vehicle: Begin by securing your vehicle with wheel chocks and lifting it with a jack and jack stands for better access to the brake lines.

3. Identify the damaged brake line: Locate the damaged section of the brake line that requires flaring.

4. Cut out the damaged section: Using a tubing cutter, cut out the damaged section of the brake line. Ensure that you leave enough material on either side of the cut for flaring.

5. Sand and deburr: Smooth any rough edges on the cut ends with sandpaper and remove any burrs using a deburring tool or sandpaper.

6. Slip on fitting nuts: Before flaring, slide fitting nuts onto each end of the cut section of brake line for later use.

7. Measure and mark: Measure and mark where you want to create the flare using a ruler.

8. Clamp brake line in flaring tool: Place one end of your brake line into the clamping portion of your flaring tool so that it is aligned with your marked measurement from step 7.

9. Choose correct die size: Select a die from your flaring tool kit that matches your brake line’s outer diameter (OD). Space your dies evenly around your clamped tubing within the flaring tool.

10. Begin forming the flare: Connect the flaring tool’s cone or punch to the brake line end, ensuring it is centered and straight. Apply pressure on the cone or punch, following your flaring tool’s instructions. This will push the brake line tubing outwards, forming a flare.

11. Finalize the flare: Inspect the completed flare to ensure it is even and without cracks. Repeat steps 8-10 for the other end of the cut section of brake line if needed.

12. Connect and test: Reattach both ends of your brake line using the fitting nuts, ensuring a tight seal with your newly formed flares. Test your vehicle’s braking system to confirm that there are no leaks and that everything is working properly.

By following these 12 steps, you can successfully flare brake lines and repair or replace damaged sections on your vehicle’s braking system. Remember always to prioritize safety and consult a professional mechanic if you are unsure about any part of the process.