When it comes to maintaining classic British cars like MGs, tackling brake line repairs is a crucial skill for any enthusiast or mechanic. A key aspect of this task is creating proper flares on brake lines to ensure leak-free and safe connections. However, British cars often utilize a specific type of flare known as the “bubble flare,” which can present a unique challenge if you’re only familiar with standard double flares. So, what’s the best Tool For Cars when dealing with these unique British brake systems?
Understanding the Bubble Flare for British Cars
Unlike the double flare commonly found in American and some other vehicles, British cars, particularly older models like MGs, frequently use bubble flares. The bubble flare, sometimes referred to as a European flare, is a single thickness flare that creates a rounded, bubble-like end on the brake line. This design is specifically intended to mate with fittings designed for this type of flare, ensuring a secure and leak-proof seal within the brake system.
Using the correct flare type is paramount for brake system integrity. While both double and bubble flares aim to prevent leaks, they are not interchangeable in all situations. Attempting to use the wrong flare type can lead to improper sealing, brake fluid leaks, and critically, brake system failure.
Navigating the Tool Options: From Double Flare Kits to Dedicated Bubble Flare Tools
The question of the right tool for creating these bubble flares often arises in online car communities and forums. In a discussion among MG enthusiasts, the initial query was clear: finding a brake line flaring tool specifically for British car brake line ends, acknowledging the limitations of standard single and double flare tools.
One experienced contributor, Wray, pointed out that standard double flare tools can indeed be used to create bubble flares, albeit without explicit instructions in most tool kits. This involves a technique of effectively performing only the first step of a double flare, resulting in the desired bubble shape. Wray confirmed successful use of this method on various MG models, highlighting the versatility of double flare tools when properly applied.
However, the discussion quickly turned to the availability and benefits of dedicated bubble flare tools. Kelly Stevenson recommended sourcing a specific kit from Apex Industries (OTC-4504), noting its affordability and suitability for bubble flares on European cars. This suggestion underscored the value of using a tool specifically designed for the task, especially when dealing with critical brake components. Using a dedicated tool can remove guesswork and increase the chances of creating consistent, reliable bubble flares.
Choosing Your Ideal Brake Line Flaring Tool
The forum discussion reveals that there isn’t necessarily one single “best” tool, but rather a range of suitable options depending on your needs and preferences.
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Double Flare Tools (with technique): For DIYers and those comfortable with adapting techniques, a standard double flare tool can be employed to create bubble flares. This can be a cost-effective approach if you already own a double flare kit. However, it requires a degree of skill and understanding to consistently achieve the correct bubble flare shape.
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Dedicated Bubble Flare Tools: For guaranteed results and ease of use, especially for those frequently working on British cars, a dedicated bubble flare tool is a worthwhile investment. Tools like the OTC-4504 kit mentioned, or the PAPCO tool acquired by another forum member, are designed specifically for bubble flares, simplifying the process and enhancing reliability.
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Quality Matters: Regardless of the type of tool chosen, the importance of quality is emphasized. As Simon Austin pointed out, investing in a “really good flaring tool” is crucial. Lower quality tools, especially the dies that form the flare, can wear out quickly, leading to uneven and unreliable flares, potentially compromising brake system safety.
Essential Tips for Brake Line Flaring Success
Beyond just the tool, the forum discussion highlighted several practical tips for successful brake line flaring on British cars:
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Identify the Flare Type: Before starting any flaring work, carefully inspect the existing fittings. As Wray advised, determine whether you need a bubble flare or a double flare. Some older MGs or banjo fittings might require double flares. If unsure, probing the fitting with a small screwdriver can help determine if it’s designed for a bubble or double flare.
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Prioritize Safety: Brake systems are critical safety components. If you’re unsure about any aspect of brake line flaring or repair, it’s always best to consult a professional mechanic. Improperly flared brake lines can lead to leaks and brake failure, with serious safety consequences.
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Practice Makes Perfect: If you’re new to brake line flaring, practice on scrap pieces of tubing before working on your car’s actual brake lines. This will help you get a feel for the tool and technique, ensuring you create proper flares when it counts.
Conclusion: Equip Yourself for British Car Brake Line Repairs
Working on British cars often requires specialized knowledge and tools, and brake line flaring is no exception. Understanding the bubble flare and choosing the right tool for cars is crucial for safe and effective brake system maintenance. Whether you opt for a dedicated bubble flare tool or master the technique of using a double flare tool, prioritizing quality tools and proper technique will ensure your British classic car’s braking system remains reliable for years to come.
