can brake drums be turned

Can Brake Drums Be Turned? Understanding Brake Drum Maintenance and Alternatives

When it comes to vehicle maintenance, brake components are among the most critical parts to keep in top working condition. One aspect of brake maintenance that often comes up is whether brake drums can be turned or resurfaced to restore their functionality. This article will explore the process of turning brake drums, its advantages and disadvantages, alternatives to turning, and the best practices for maintaining brake drums.

Understanding Brake Drums

Brake drums are an essential part of a vehicle's braking system, mainly in older vehicles or those with rear drum brakes. They work by housing brake shoes that press against the inside of the drum when the brakes are applied, creating friction that slows down the vehicle. Over time, these components can wear out or become warped, leading to reduced braking efficiency, noise, or even brake failure.

The Process of Turning Brake Drums

Turning, or resurfacing, brake drums involves machining the surface of the drum to remove any imperfections, such as scoring, pitting, or warping. This process is usually done on a brake lathe, which ensures that the drum remains cylindrical and within the manufacturer's specified tolerances. Typically, a shop will measure the drum's diameter and surface condition, and if it's deemed suitable, they will proceed with the machining process.

Advantages of Turning Brake Drums

1. Cost-Effectiveness Turning brake drums is often less expensive than replacing them with new ones, making it an appealing option for budget-conscious vehicle owners.

2. Restoration of Performance Resurfacing can restore the drum's surface to a smooth finish, which can enhance braking performance and eliminate issues like noise and vibration associated with worn drums.

3. Environmental Considerations By choosing to turn rather than replace, owners can reduce waste, contributing to more sustainable automotive practices.

Disadvantages of Turning Brake Drums

1. Limited Life Span Every time a brake drum is turned, a certain amount of material is removed. This can reduce the lifespan of the drum, and if excessively turned, the drums may not meet safety specifications.

2. Potential for Warpage If the drums are already warped, turning them may not fully correct the issue. It could lead to uneven wear on brake shoes and more braking problems in the future.

3. Not Always Possible Some drums may be too thin, cracked, or worn beyond the point of being turned safely. In such cases, replacement is the only viable option.

Alternatives to Turning Brake Drums

If turning is not a suitable option, vehicle owners have alternatives. The most straightforward choice is to replace the brake drums, which ensures that the braking system operates as intended. While more expensive, new components offer peace of mind regarding safety and performance. Moreover, upgrades to more modern disc brake systems can enhance safety and reliability in many vehicles.

Best Practices for Brake Drum Maintenance

1. Regular Inspections To extend the life of brake drums, conduct regular inspections. Look for signs of wear, cracking, or corrosion.

2. Proper Adjustment Ensure that the brake shoes are properly adjusted to avoid undue stress on the drums, which can lead to warped surfaces.

3. Use Quality Parts When replacing brake components, invest in high-quality parts to ensure better performance and durability.

4. Stay Informed Keeping informed about your vehicle’s maintenance needs is essential. Consult your vehicle’s manual for recommended replacement intervals and service practices.

Conclusion

In summary, while brake drums can be turned as a form of maintenance, it is vital to weigh the pros and cons and understand the specific condition of your vehicle’s braking system. Resurfacing can offer temporary relief and a cost-effective solution, but it is crucial to know when to opt for replacement for optimal safety and performance. Regular maintenance and proper care will ultimately lead to better braking performance and longevity of your vehicle's braking system.