Disc & Drum: Removal & Installation Nissan Quest I

REMOVAL & INSTALLATION

Note. When removing or installing components, refer to appropriate illustration for exploded view of specific assembly. (Схема №3)through (Схема №5).

Removal

1. Raise and support front of vehicle. Remove wheel assembly. Remove bottom guide pin. Rotate caliper body upward on guide pin.
2. Remove pad retainers, shims and brake pads. Note pad condition and location for proper installation (if reusable). Minimum pad thickness is .08" (2.0 mm) for all models.

Installation

1. Clean piston and area around lock and guide pins. Install inner pad. Seat piston by placing lever through opening in caliper body and pushing piston into bore. Apply brake grease to pad retainer points on caliper assembly. Install outer pad and shims.
2. Install pad retainers. Rotate caliper body down into original position. Install lower lock pin. Tighten bolts to specification, and depress brake pedal several times to seat pads. See TORQUE SPECIFICATIONS table at the end of this article.

Raise and support front of vehicle. Remove wheel assembly. Disconnect and plug brake line from caliper. Remove caliper mount bolts. Remove caliper assembly.

To install, reverse removal procedure. Tighten caliper mount bolts to specification. See TORQUE SPECIFICATIONS table at the end of this article. Bleed hydraulic system. See BLEEDING BRAKE SYSTEM.

Raise and support vehicle. Remove wheel assembly. Remove caliper, but DO NOT disconnect brake hose. See FRONT BRAKE CALIPER. Wire caliper aside. Remove rotor from hub. To install, reverse removal procedure.

1. Raise and support rear of vehicle. Remove rear wheel assembly. Release parking brake. Remove parking brake cable retainer (if equipped). Remove lower pin bolts, lock spring and pad retainer spring (if equipped).
2. Rotate caliper upward. Remove pads and pad shims. Note locations and condition of pads for proper installation (if reusable). Minimum pad thickness is .08" (2.0 mm).

1. To install, reverse removal procedure. Clean area around pin bolts and piston end. DO NOT damage piston boot.
2. Apply silicone brake grease to caliper sliding surfaces and pad contact area on mounting support.

Remove rear wheel assembly. Disconnect hydraulic line from caliper, and plug openings. Disconnect parking brake cable and stay (if equipped). Remove caliper mount bolts, and remove caliper assembly.

To install, reverse removal procedure. Install and tighten hydraulic line and caliper mount bolts to specification. See TORQUE SPECIFICATIONS table at the end of this article. Bleed hydraulic system. See BLEEDING BRAKE SYSTEM.

Remove caliper. See REAR BRAKE CALIPER. Remove rotor from axle flange. If rotor is difficult to remove, install 2 bolts in rotor and gradually tighten them to remove rotor.

1. To install, reverse removal procedure.
2. After installation is complete, adjust clearance between pad and rotor by depressing pedal until pedal stroke is constant.

Raise and support vehicle. Remove rear wheel assembly. Remove drum. Remove brake shoe return springs. Remove adjuster and shoes as an assembly. Separate adjuster and shoes. Remove remaining components, and mark for installation reference.

1. To install, reverse removal procedure. Apply Lubriplate to backing plate bosses, adjuster assembly threads and parking brake lever pin.
2. Before installing drum, adjust brake shoe clearance. See REAR BRAKE SHOE CLEARANCE under ADJUSTMENTS. After installation is complete, depress brake pedal to center shoes, and check pedal travel. Rotate brake drum to ensure free movement.

Disconnect electrical wiring at cylinder reservoir. Disconnect and plug hydraulic lines at master cylinder. Drain fluid from reservoir. Remove cylinder mounting nuts, and remove master cylinder.

To install, reverse removal procedure. Bleed hydraulic system. See BLEEDING BRAKE SYSTEM. Check pedal height. See BRAKE PEDAL HEIGHT & FREE PLAY under ADJUSTMENTS.

Remove master cylinder. See MASTER CYLINDER. Disconnect power unit push rod from brake pedal by removing clevis pin. Disconnect vacuum line from power brake unit. Remove power brake unit-to-firewall nuts. Remove power brake unit.

To install, reverse removal procedure. Before installing master cylinder, adjust booster output push rod. See POWER BRAKE UNIT OUTPUT ROD under ADJUSTMENTS.

1. Check valve is located in vacuum line between intake manifold and power brake unit. To remove, disconnect retaining clip from firewall (if equipped). Remove hose clamps, separate hoses from valve, and remove check valve.
2. Inspect check valve to ensure air flows in direction of intake manifold only. If air flows both ways or does not flow at all, replace check valve. To install, reverse removal procedure.