how hard is it to change drum brakes

How Hard Is It to Change Drum Brakes?

Changing drum brakes may seem like a daunting task for the uninitiated, but with the right tools and a bit of patience, it can be a manageable DIY project. Drum brakes are commonly found on older vehicles and some modern economy cars, predominantly on the rear wheels. Understanding the process involved in changing them is essential for any car owner looking to save on maintenance costs or simply gain confidence in their automotive skills.

Understanding Drum Brakes

Before diving into the replacement process, it is important to understand how drum brakes function. Unlike disc brakes, which use a caliper to squeeze brake pads against a rotor, drum brakes operate by forcing brake shoes against a spinning drum. This friction slows the vehicle down, generating heat which is dissipated through the drum’s surface. Over time, the brake shoes wear down and the drum may become scored or warped, necessitating a replacement.

Tools and Preparation

To successfully change your drum brakes, you will need a few basic tools - Jack and jack stands - Lug wrench - Brake cleaner - Repair manual specific to your vehicle - Socket set and ratchet - Screwdrivers (flat and Phillips) - Brake shoe replacement kit (includes shoes and necessary hardware) - C-clamps or brake spring tools

Before starting, gather all tools and materials to ensure a smooth process. Always remember to work in a well-ventilated area and wear safety gear such as gloves and goggles.

Step-by-Step Guide to Changing Drum Brakes

1. Safety First Start by parking your vehicle on a flat surface, engaging the parking brake, and securing it with wheel chocks. Loosen the lug nuts slightly before raising the car.

2. Lift the Vehicle Using the jack, lift the vehicle until it’s high enough to comfortably work on. Secure it with jack stands to prevent any accidents.

3. Remove the Wheel Once the car is secure, remove the lug nuts completely and take off the wheel to expose the drum brake assembly.

4. Inspect the Brake Components Before proceeding, inspect the drums, shoes, and springs for wear or damage. If the drums are scored or warped, they should be replaced.

5. Remove the Drum In some cases, the drum may be held in place by retaining screws or rust. If it doesn’t come off easily, a gentle tap with a hammer or the use of a drum puller can help.

6. Detach the Brake Shoes Carefully note how the brake shoes and hardware are assembled. This step is crucial for reassembly. Use a screwdriver to remove the springs and clips holding the shoes in place.

7. Replace the Brake Shoes Install the new brake shoes by reversing the removal process. Make sure to replace any worn springs and hardware as part of the kit.

8. Reassemble the Drum Once the new shoes are in place, reinstall the drum. Make sure it spins freely without any dragging. If it’s too tight, adjust the shoe alignment using the adjuster screw.

9. Reattach the Wheel Place the wheel back on and hand-tighten the lug nuts. Lower the vehicle from the jack stands and fully tighten the lug nuts in a crisscross pattern to ensure even torque.

10. Test the Brakes Before hitting the road, pump the brake pedal several times to ensure that the brake shoes seat properly. Check for any unusual noises or drag when driving slowly.

Conclusion

While changing drum brakes can be an intricate process, it is entirely feasible with proper preparation and care. Many vehicle owners have successfully tackled this job at home, significantly saving on labor costs and gaining valuable knowledge about their vehicle’s braking system. It’s critical to follow safety precautions and consult your vehicle’s service manual for specific instructions tailored to your make and model. With the right approach, you can keep your vehicle’s braking system in top condition, ensuring your safety on the road.