How to Get Rust Off Brake Drums

Brake drums are essential components of a vehicle's braking system, allowing for smoother stops and better control. However, like other parts of a car, brake drums are susceptible to rust, especially if they are exposed to moisture, road salt, or lack of maintenance. Rust not only impacts the performance of the brakes but also can lead to more significant issues if left untreated. Here’s a step-by-step guide on how to effectively remove rust from brake drums and ensure your vehicle operates safely and efficiently.

Tools and Materials Needed

Before starting, gather all the necessary tools and materials - Safety goggles and gloves - Wire brush or rust scraper - Sandpaper (preferably 80-120 grit) - Rust remover solution or vinegar - Clean cloths - Brake cleaner - A small container for solutions - Paint (if needed for protection)

Step 1 Safety First

Always start by ensuring your safety when working on your car. Wear safety goggles and gloves to protect your eyes and hands from debris and chemicals. Ensure your vehicle is parked on a flat surface, and engage the parking brake to prevent it from rolling.

Step 2 Remove the Wheel

To access the brake drum, you have to remove the wheel. Loosen the lug nuts slightly before lifting the vehicle with a jack. Once the car is raised, fully remove the lug nuts and then take off the wheel to expose the brake drum.

Step 3 Inspect the Brake Drum

After removing the wheel, inspect the brake drum for signs of rust. If the rust is superficial (flaky and light), it can be easily removed. However, if the rust has created deep pitting, you may need to consider replacing the drum altogether.

Step 4 Cleaning the Brake Drum

Begin by using a wire brush or rust scraper to remove loose rust and debris from the surface of the drum. This initial cleaning is crucial to getting rid of any loose particles that could interfere with the subsequent cleaning process.

If there’s a significant amount of rust, you might want to use sandpaper to sand down the area. Use 80-120 grit sandpaper for this job, applying consistent pressure but being careful not to sand too aggressively, as this could damage the drum.

Step 5 Applying Rust Remover

For more stubborn rust, you can use a commercial rust remover or even household vinegar. If you choose to use vinegar, soak a cloth in vinegar and apply it to the rusted surface. Let it sit for about 30-60 minutes, as the acetic acid in vinegar can help dissolve the rust. After soaking, use your wire brush or sandpaper again to scrub the area.

Step 6 Clean with Brake Cleaner

After removing the rust, it's imperative to clean the drum thoroughly. Spray brake cleaner on the surface and wipe it down with a clean cloth. This will remove any remaining rust particles, oils, or dust that could affect the performance of the brakes.

Step 7 Inspect and Replace if Necessary

Once the drum is clean, inspect it for any cracks, deep pitting, or significant wear. If the drum is severely damaged or beyond repair, consider replacing it to maintain optimal braking performance.

Step 8 Protect the Drum

If the brake drum is in good condition, consider applying a coat of high-temperature paint to protect it from rust in the future. Ensure that the paint is specifically designed for brake parts, as it will withstand the heat generated during braking.

Step 9 Reinstall the Wheel

Once you've finished cleaning and potentially painting the drum, it’s time to reattach the wheel. Place it back on the hub and hand-tighten the lug nuts. Lower the vehicle back to the ground and then tighten the lug nuts fully in a crisscross pattern to ensure even pressure.

Conclusion

Maintaining your brake drums and keeping them rust-free is crucial for your vehicle's performance and safety. Regular inspection and cleaning can prevent rust buildup and enhance the longevity of your brakes. If you feel uncomfortable performing this task or if the rust situation seems severe, don’t hesitate to consult with a professional mechanic. Regular maintenance on your vehicle will ensure a safe and reliable driving experience.