how to change drum brake cylinder

How to Change the Drum Brake Cylinder

Changing a drum brake cylinder can seem like a daunting task, especially for those who are not well-versed in auto repairs. However, with the right tools, a basic understanding of the process, and a bit of patience, you can successfully replace a drum brake cylinder. This guide will walk you through the essential steps involved in changing the drum brake cylinder on your vehicle.

Tools and Materials Needed

Before you get started, gather the necessary tools and materials. You will need

- A jack and jack stands - A lug wrench - A brake drum puller (if the drums are stuck) - A ratchet and socket set - Pliers - A brake cylinder replacement - Brake fluid - Brake cleaner - A container for old fluid - Safety glasses and gloves

Step-by-Step Guide

1. Preparation

Begin by preparing your workspace. Ensure that you are in a well-ventilated area and that the vehicle is parked on a flat surface. Wear safety glasses and gloves for protection.

2. Lift the Vehicle

Using a jack, lift the vehicle and support it securely with jack stands. Never rely solely on the jack for support. Remove the wheel with a lug wrench to expose the drum brake assembly.

3. Remove the Brake Drum

If the brake drum is stuck, you may need to use a brake drum puller. Once removed, inspect the interior for any signs of wear or damage. If the brake shoes are worn out, it’s advisable to replace them simultaneously.

4

. Detach the Brake Cylinder
how to change drum brake cylinder

Locate the brake cylinder, which is usually positioned at the top of the brake assembly. Remove any retaining clips or bolts securing the brake cylinder in place. Carefully detach the brake lines connected to the cylinder. Be prepared for some brake fluid to leak out, so have a container ready to catch it.

5. Install the New Brake Cylinder

Take the new brake cylinder and install it in the reverse order of removal. Ensure that it is secured with the same bolts or clips. Reattach the brake lines tightly to prevent any leaks. It is critical to ensure that the fittings are clean and free from dirt or debris.

6. Bleed the Brakes

After installing the new cylinder, you need to bleed the brakes to remove any air that may have entered the system. Start by filling the brake fluid reservoir with fresh brake fluid. Then, have an assistant help you bleed the brakes. Begin with the wheel furthest from the master cylinder and work your way closer. Press the brake pedal while your assistant opens and closes the bleeder valve on the brake cylinder. Repeat this process until a steady stream of fluid without bubbles flows out.

7. Reassemble the Brake Components

Once the brakes are bled, carefully replace the brake drum. Make sure it fits properly and rotates freely. Reinstall the wheel and secure it with lug nuts, tightening them in a star pattern for even distribution.

8. Lower the Vehicle

Remove the jack stands and lower the vehicle back to the ground using the jack. After lowering, give the lug nuts a final tightening while the vehicle is on the ground to ensure they are secure.

9. Test Drive

Before heading out on the road, take a moment to check your work. Press the brake pedal a few times to ensure it feels firm. Then, take the vehicle for a short test drive in a safe area to make sure the brakes are functioning properly.

Conclusion

Changing the drum brake cylinder is a straightforward process that can save you money on repairs. By following these steps carefully and taking your time, you can ensure a successful installation. Remember that safety is paramount, so if you ever feel unsure about the process, don’t hesitate to seek the assistance of a professional mechanic. With a little practice, you’ll be able to tackle more complex automotive tasks in the future!