How to Change Rear Drum Brakes
Changing rear drum brakes can seem daunting, but with the right tools and a bit of guidance, it can be a straightforward task. This article will walk you through the steps necessary to change your rear drum brakes, ensuring that you can take control of your vehicle's maintenance and improve safety on the road.
Tools and Materials Needed
Before starting, ensure you have the following tools and materials
- Jack and jack stands - Lug wrench - Drum brake service kit (include brake shoes, springs, and retainers) - Brake cleaner - Adjusting tool (if available) - Pliers and a wrench set - A torque wrench - Safety glasses and gloves
Step 1 Prepare Your Vehicle
Start by parking your vehicle on a level surface and engaging the handbrake. This will ensure that the car doesn’t roll while you’re working on it. Loosen the lug nuts on the rear wheel slightly, but do not completely remove them at this stage. Use the lug wrench for this task.
Step 2 Lift the Vehicle
Using the jack, lift the rear of your vehicle until the tires are off the ground. Secure the vehicle with jack stands to ensure safety while you work. Once the vehicle is secure, remove the lug nuts and take off the rear wheel.
Step 3 Remove the Brake Drum
With the wheel removed, you will have access to the brake drum. Depending on your vehicle, there might be retaining screws holding the drum in place. If so, remove them. If the drum appears stuck, you can lightly tap around the edges with a rubber mallet to break the seal created by rust or debris. Once loose, pull the drum straight off to reveal the brake assembly inside.
Step 4 Inspect the Components
Before proceeding, take a moment to inspect the condition of the brake components. Check the brake shoes, springs, backing plate, and wheel cylinder for any signs of wear, damage, or fluid leaks. If you notice any significant damage, consider replacing those parts as well.
Step 5 Remove the Old Brake Shoes
To remove the old brake shoes, you will need to disconnect the springs. Start with the retaining spring which holds the shoes in place. Use pliers or the appropriate tool to release the tension. Note how the springs are positioned, as you will need to replicate this when installing the new shoes. After this, remove the adjuster and then carefully pull off the brake shoes.
Step 6 Install New Brake Shoes
Before installing the new shoes, it’s a good idea to clean the backing plate and any contact points with brake cleaner to remove dust and debris. Install the new brake shoes by reversing the removal process. Attach each shoe to the backing plate and ensure that they are seated correctly. Reconnect the adjusting screw and then carefully place the retaining springs.
Step 7 Reassemble the Drum Brake Assembly
With the new shoes in place, it’s time to reinstall the brake drum. Before doing so, you may need to adjust the brake shoe spread to fit inside the drum. This is typically done by turning the star wheel adjuster located in the assembly. Once the shoes are correctly adjusted and the drum fits without excessive play, slide the drum back onto the wheel hub.
Step 8 Reattach the Wheel
After reassembling the brake system, place the rear wheel back on. Hand-tighten the lug nuts before lowering the vehicle back to the ground. Once on the ground, use a torque wrench to tighten the lug nuts to the manufacturer’s specifications.
Step 9 Test the Brakes
Before driving, pump the brake pedal a few times to ensure that the new brake shoes are seating properly against the drum. Check for any unusual noises or pulling to one side while testing the brakes at a low speed. If anything seems off, double-check your installation.
Conclusion
Changing rear drum brakes is a manageable task that can save you money on labor costs and empower you with hands-on knowledge about your vehicle. Always prioritize safety by wearing protective gear and ensuring your vehicle is securely lifted. With patience and attention to detail, you can maintain your vehicle's braking system effectively. Remember, if you feel uncertain at any point, don’t hesitate to consult a professional mechanic for assistance.