Montage des freins arrières à l'aide des excentriques

Introduction

This tutorial provides a step-by-step guide on how to assemble rear brakes using eccentric adjusters, as demonstrated in the video by 2cvMehariClubCassis. Understanding this process is essential for maintaining the braking system of vehicles like the Citroën 2CV. Proper brake assembly ensures safety and optimal performance.

Step 1: Gather Necessary Tools and Parts

Before starting the assembly, make sure you have all the required tools and components on hand.

• Tools needed:
  • Socket set
  • Wrenches
  • Screwdrivers
  • Brake cleaner
  • Lubricant
• Parts needed:
  • Rear brake shoes
  • Eccentric adjusters
  • Springs and clips
  • Brake drum

Practical Tips

• Ensure that all tools are in good condition to prevent any accidents.
• Clean all parts with brake cleaner to remove grease and dirt.

Step 2: Remove the Old Brake Assembly

To begin the installation, you need to remove the old brake components from the vehicle.

1. Lift the vehicle using a jack and secure it with jack stands.
2. Remove the rear wheel to access the brake assembly.
3. Detach the old brake drum by unscrewing any retaining screws.
4. Take off the old brake shoes along with the springs and clips.

Common Pitfalls

• Ensure that the vehicle is securely lifted and supported before working underneath it.

Step 3: Install the New Brake Shoes

With the old components removed, you can now install the new brake shoes.

1. Position the new brake shoes into place, ensuring they align with the backing plate.
2. Attach the springs to hold the shoes in place.
3. Secure the shoes using the clips provided.

Practical Tips

• Ensure the shoes are oriented correctly; the larger surface should face the drum.

Step 4: Insert the Eccentric Adjusters

The eccentric adjusters are critical for maintaining proper brake shoe spacing.

1. Locate the adjuster slots on the backing plate.
2. Insert the eccentric adjusters into the slots, ensuring they fit snugly.
3. Adjust the eccentrics to the desired position, which will determine the spacing of the brake shoes.

Explanation of Eccentric Adjusters

Eccentric adjusters are designed to enable precise adjustments of brake shoe clearance, which is vital for effective braking performance.

Step 5: Reattach the Brake Drum

With the brake shoes and adjusters in place, it's time to reattach the brake drum.

1. Carefully place the brake drum back onto the assembly.
2. Secure the drum with any retaining screws that were previously removed.
3. Spin the drum to ensure there is no binding and that it rotates freely.

Practical Tips

• If the drum feels too tight, adjust the eccentric further to provide more clearance.

Step 6: Test the Brake Assembly

After everything is assembled, it’s crucial to test the brakes.

1. Lower the vehicle and remove the jack stands.
2. Pump the brake pedal several times to seat the brake shoes.
3. Take the vehicle for a test drive, ensuring the brakes engage smoothly.

Common Pitfalls

• Be cautious during the test drive; avoid high speeds until you are certain the brakes are functioning correctly.

Conclusion

In this guide, we covered the essential steps for assembling rear brakes using eccentric adjusters. Proper installation is vital for vehicle safety and performance. Always ensure you have the right tools and parts before starting, and do not hesitate to consult a professional if you encounter difficulties. Following these steps will help you maintain your vehicle’s braking system effectively.