how to unseize rear drum brakes

How to Unseize Rear Drum Brakes

Rear drum brakes are an essential component of many vehicles. While they are generally reliable, they can occasionally seize up, causing problems with your braking system. When this happens, it's crucial to address the issue promptly to ensure your safety on the road. Here’s a step-by-step guide on how to unseize your rear drum brakes.

Understanding the Problem

Before diving into the process of unseizing your rear drum brakes, it’s essential to understand why they might seize in the first place. Common reasons include rust build-up, moisture infiltration, or improper adjustment. If the brakes have been inoperative for a long time or if your vehicle has been exposed to harsh environmental conditions, the internal components of the drum brake can become corroded or stuck.

Tools You’ll Need

To unseize your rear drum brakes, you’ll need some basic tools

- Jack and jack stands - Lug wrench - Brake cleaner - Hammer or rubber mallet - Screwdriver - A pair of pliers - Wrench set - Grease or brake lubricant - Replacement parts (if necessary)

Step-by-Step Process

1. Safety First

Before attempting any repairs, ensure your vehicle is parked on a level surface and the parking brake is engaged. Always wear safety glasses and gloves to protect yourself while working on your vehicle.

2. Lift the Vehicle

Using your jack, lift the rear of your vehicle. Make sure to use jack stands to secure the vehicle in place. Never rely solely on the jack for support.

3. Remove the Wheels

Using a lug wrench, remove the lug nuts from the rear wheels. Once the wheels are off, you’ll gain access to the brake drum.

4. Inspect the Brake Drum

Check the condition of the brake drum and components. Look for signs of rust, corrosion, or physical damage. If you notice any significant damage, you might need to replace the drum or other brake components.

5. Attempt to Loosen the Drum

If the drum seems to be stuck, use a hammer or rubber mallet to gently tap around the perimeter of the drum. This may help loosen any rust or debris that is causing it to seize. Be cautious here, as excessive force can damage the brake components.

6. Remove the Brake Drum

If tapping doesn’t work, you may need to remove the adjuster cover (usually at the back of the drum). This will give you access to the star wheel adjuster. Use a screwdriver or pliers to rotate the adjuster, which can help retract the brake shoes and free the drum.

7. Clean the Components

Once the drum is free, clean any rust or debris off the drum and brake shoes with brake cleaner. Make sure to follow the manufacturer’s instructions for any cleaning products you use.

8. Lubricate Moving Parts

Apply a thin layer of brake lubricant on the moving parts within the brake assembly, ensuring they can slide freely. Avoid getting lubricant on the brake shoes or drum itself, as this can lead to reduced braking performance.

9. Reassemble the Components

Once everything is clean and lubricated, reassemble the components in the reverse order of disassembly. Make sure to properly adjust the brakes if necessary to ensure they function correctly.

10. Test the Brakes

After everything is reassembled, lower your vehicle and test the brakes by gently pressing the pedal. Ensure that the brakes engage properly and that there are no unusual noises or sensations while braking.

Conclusion

Unseizing rear drum brakes may seem daunting, but with the right tools and a bit of patience, it can be accomplished swiftly. Regular maintenance, including periodic inspections and keeping the brake components clean and lubricated, can prevent many brake-related issues in the future. If you’re uncomfortable performing this maintenance yourself or if the problem persists, consult a professional mechanic to ensure your vehicle remains safe and roadworthy. Remember, the braking system is crucial for your safety, so never take any issues lightly!