Wheel Cylinder: Assembly

2007 Ford Fusion SEL, 2.3 Z, StandardSECTION Assembly
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the spring.
  2. Using clean brake fluid, lubricate and install the 2 piston seals.
  3. Install the 2 pistons.
  4. Install the 2 dust boots.
  5. Install the bleeder screw.
  6. Apply a thin coat of silicone grease to the brake shoe contact points on the backing plate.
  7. Install the trailing brake shoe and parking brake actuator lever assembly.
  8. Install the leading brake shoe, the pins and the retaining springs.
  9. NOTE: Adjust the self-adjuster to the full retracted position to ease the installation of the brake drum.
  10. Install the self-adjuster and spring assembly.
  11. CAUTION: Use only specified silicone based lubricant. Use of other lubricants may cause damage to piston seals.
  12. With the brake shoe return springs removed, push the leading shoe into the wheel cylinder until the shoe bottoms out.
  13. Pull back the wheel cylinder dust boot (opposite depressed shoe) and apply the specified lubricant around the wheel cylinder piston.
    • Reposition the wheel cylinder dust boot.
  14. Push the trailing shoe into the wheel cylinder until the shoe bottoms out.
  15. Pull back the wheel cylinder dust boot (opposite depressed shoe) and apply the specified lubricant around the wheel cylinder piston.
    • Reposition the wheel cylinder dust boot.
  16. Once both wheel cylinder pistons have been lubricated, push the pistons side-to-side at least 3 times to distribute the lubricant and ensure smooth movement.
  17. Install the lower return spring.
  18. Install the upper return spring.
  19. Install the brake drum. For additional information, refer toBrake DrumΒ .
  20. Bleed the wheel cylinder. For additional information, refer to BRAKE SYSTEM - GENERAL INFORMATION article for component bleeding.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.