how to clean rear drum brakes

How to Clean Rear Drum Brakes

Cleaning rear drum brakes is an essential part of vehicle maintenance that can significantly improve braking performance and increase the longevity of your brake system. While it might seem daunting, with the right tools and a little know-how, you can perform this task yourself. This article will guide you through the process step by step.

Tools and Materials Needed

Before you get started, gather the necessary tools and materials - Jack and jack stands - Brake cleaner - Wrenches and sockets - Screwdriver - Drum brake spring tool (optional but helpful) - Soft brush or old toothbrush - Clean rags or paper towels - Safety goggles and gloves

Step 1 Prepare the Vehicle

Begin by ensuring that the vehicle is parked on a level surface. Engage the parking brake and place wheel chocks behind the front wheels for added safety. Using your jack, lift the rear of the vehicle, then secure it with jack stands to ensure stability while you work.

Step 2 Remove the Rear Wheels

Use the appropriate socket or wrench to remove the lug nuts and take off the rear wheels. Set the wheels aside in a safe place. This will give you direct access to the drum brakes.

Step 3 Inspect the Drum Brakes

Before cleaning, visually inspect the brake drums. Look for any signs of excessive wear, scoring, or damage. The brake shoes should have sufficient material left; if they are worn down too much, it is advisable to replace them instead of simply cleaning.

If the brake drum does not slide off easily, gently tap it with a hammer to loosen it. Be careful not to damage the drum. You may need to remove retaining clips or bolts, depending on your vehicle’s design. Once loose, slide the drum off and inspect the condition of the components inside.

Step 5 Clean the Brake Components

Spray brake cleaner on the brake shoes, backing plate, and inside the drum. Use a soft brush or an old toothbrush to agitate any dust or debris. Be thorough but avoid excessive scrubbing, which might damage the surfaces. Wipe away any residual cleaner with a clean rag or paper towel.

Step 6 Clean the Drum's Interior

Take the time to clean the inside of the brake drum as well. Ensure that all dust and debris are removed. If you find a significant amount of dust, it might indicate that the brake shoes are worn and need to be replaced.

Step 7 Reassemble the Brake System

Once everything is clean, it’s time to reassemble your brake components. Carefully slide the drum back onto the wheel assembly. Reattach any retaining clips or bolts that were removed earlier. Ensure everything is secured properly.

Step 8 Reinstall the Wheels and Lower the Vehicle

Place the rear wheels back onto the hubs and hand-tighten the lug nuts. Lower the vehicle to the ground, then tighten the lug nuts fully in a crisscross pattern to ensure even pressure.

Step 9 Final Checks

Before taking your vehicle for a drive, double-check that all tools are removed from the work area and that everything is tightened properly. It’s smart to pump the brake pedal a few times to make sure your brakes are functioning correctly.

Conclusion

Cleaning rear drum brakes is a straightforward yet crucial maintenance task that can enhance the safety and performance of your vehicle. Regular maintenance will ensure that your braking system stays in top shape, preventing more significant issues down the road. Remember that if you ever feel unsure during the process, don’t hesitate to consult a professional mechanic. Happy driving!