When working on British cars, especially classics like the MGB, you’ll inevitably encounter the need to repair or replace brake lines. This often requires creating the correct flare on the end of the brake line for a secure, leak-free connection. Finding the right on-the-car brake line flaring tool for this specific type of flare, often called a “bubble flare,” can be challenging. This article will discuss the nuances of bubble flares, the tools available, and tips for ensuring a proper brake line repair.
Understanding Bubble Flares on British Car Brake Lines
Unlike standard single or double flares commonly found on American vehicles, British cars often utilize a bubble flare. This type of flare features a distinctive rounded or “bubbled” shape that requires a specialized flaring tool. While some mechanics attempt to replicate this flare with double flaring tools, achieving a perfect, leak-free seal is difficult and potentially compromises safety. A dedicated bubble flaring tool ensures accuracy and reliability in creating this critical connection.
On-the-Car Brake Line Flairing Tool Options
Several on-the-car brake line flaring tool options are available for creating bubble flares. While some universal flaring tools claim to create bubble flares, a dedicated tool designed specifically for this purpose is recommended.
- Dedicated Bubble Flairing Tools: These tools often come as part of a kit and include dies specifically designed for creating bubble flares of varying sizes. They offer the most accurate and reliable way to form these flares. Look for kits from reputable manufacturers specializing in automotive tools. One example mentioned in online forums is the OTC-4504 kit from Apex Industries.
- Universal Flaring Tools: Some high-quality universal flaring tools can create bubble flares, but careful attention to technique is crucial. The quality of the tool is paramount, as a worn or inferior tool will likely produce uneven or improperly formed flares. If using a universal tool, ensure it’s in excellent condition and capable of creating a precise, rounded flare.
Tips for Using a Brake Line Flairing Tool
Whether using a dedicated bubble flaring tool or a universal tool, follow these tips to ensure a successful brake line flare:
- Properly Prepare the Brake Line: Cut the brake line squarely and deburr the edges to ensure a clean, even surface for flaring.
- Use the Correct Die: Select the die that matches the brake line’s diameter. Using the wrong die will result in an improperly formed flare.
- Lubricate the Die and Tubing: Applying a small amount of lubricant to the die and the end of the brake line will reduce friction and help create a smoother, more consistent flare.
- Apply Even Pressure: When using the flaring tool, apply slow, even pressure to ensure the flare forms correctly. Avoid jerky movements or excessive force, which can damage the tool or the brake line.
- Inspect the Flare: After creating the flare, carefully inspect it for any cracks, imperfections, or unevenness. If the flare is not perfect, redo it. A proper bubble flare should have a smooth, rounded shape with no sharp edges.
Choosing the Right Tool for Your Needs
Selecting the right on-the-car brake line flaring tool is critical for ensuring safe and reliable brake line repairs. While dedicated bubble flaring tools are ideal, a high-quality universal tool can also be effective with the proper technique. Consider the frequency of use, your budget, and the specific requirements of your vehicle when making your decision. Investing in a quality tool will ultimately save time and frustration, and, most importantly, ensure the safety and reliability of your braking system.
Conclusion
Working with brake lines, especially on British cars requiring bubble flares, demands precision and the right tools. Using a dedicated on-the-car brake line flaring tool designed for bubble flares offers the most reliable results. However, a quality universal tool can also be successful if used correctly. Always prioritize safety, meticulously inspect your work, and remember that correctly flared brake lines are essential for a properly functioning and safe braking system.
