### Brake Caliper

#### REMOVAL AND INSTALLATION

##### 300ZX

CAUTION
Brake pads may contain asbestos, which has been determined to be a cancer causing agent. Never clean the brake surfaces with compressed air! Avoid inhaling any dust from any brake surface! When cleaning brake surfaces, use a commercially available brake cleaning fluid.

Fig. 1:Front brake caliper assembly -- 1995-96 Sentra and 200SX

###### Front

1. Raise and support the vehicle on jackstands, then remove the front wheels.
2. Remove the disc brake pads.
3. Using a suitable tool, retract the disc brake pistons by prying them back into the disc caliper.

   NOTE: When prying disc caliper piston, observe the other pistons and prevent them from coming out of their bores.

4. Disconnect and plug the brake tube at the brake hose connection.
5. Remove the brake caliper mounting bolts, then remove the caliper assembly from the vehicle.

   WARNING
   Never remove the caliper joining bolts that hold the two caliper halves together.

   To install:

6. Install the brake caliper mounting bolts. Tighten the mounting bolts to 72-87 ft. lbs. (98-118 Nm).
7. Reconnect the brake hose.
8. Install the disc brake pads, shims, and the pad springs. Always use new shims.
9. Bleed the brake system. Top off the master cylinder fluid level as necessary
10. Install the wheel assembly and lower the vehicle.

###### Rear

1. Raise and support the vehicle safely.
2. Remove the rear wheels.
3. Release the parking brake and remove the cable and bracket assembly.
4. Remove the disc brake pads.
5. Using a suitable tool, retract the disc brake pistons by prying them back into the disc caliper.

   NOTE: When prying disc caliper piston, observe the other pistons and prevent them from coming out of their bores.

6. Disconnect the brake hose from the caliper and plug it.
7. Remove the caliper mounting bolts and remove the caliper assembly.

   To install:

8. Clean the piston end of the caliper assembly and the area around the pin holes. Be careful not to get oil on the piston boot.
9. Position the caliper assembly in the mounting support and tighten the mounting bolts to 28-38 ft. lbs. (38-52 Nm).
10. Install the disc brake pads, shims, and the pad springs. Always use new shims.
11. Reconnect the rear brake hose to the caliper.
12. Bleed the brake system and top of the master cylinder fluid level as necessary.
13. Mount the wheels and lower the vehicle.

    WARNING
    Never remove the caliper joining bolts that hold the two caliper halves together.

##### Altima, Maxima, 240SX, 1995-97 Sentra and 200SX

CAUTION
Brake pads may contain asbestos, which has been determined to be a cancer causing agent. Never clean the brake surfaces with compressed air! Avoid inhaling any dust from any brake surface! When cleaning brake surfaces, use a commercially available brake cleaning fluid.

###### Front Caliper

1. Raise and safely support vehicle.
2. Remove the front wheels.
3. Remove both guide pin bolts and brake fluid hose connector; be sure to plug the openings to prevent dirt from entering the system.
4. Remove the caliper assembly from the vehicle.

   To install:

5. Check the level of fluid in the master cylinder. If the fluid is near the maximum level, use a clean syringe to remove fluid until the level is down well below the lip of the reservoir.
6. Use a large C-clamp to press the caliper piston back into the caliper, to allow room for the installation of the thicker new pads.
7. Install the new pads, new shims and pad retainer(s).
8. Install the brake caliper and torque the caliper-to-torque member pin bolts to 40-47 ft. lbs. (54-84 Nm) on the 1993-94 Sentra and 23 ft. lbs. (31 Nm) on all other models.
9. Using new copper washers, install the brake line to the brake caliper and torque the connecting bolt to 12-14 ft. lbs. (17-20 Nm).
10. Install the wheels and tighten the lug nuts to the proper specification.
11. Bleed the brake system and top off the master cylinder as necessary.

    NOTE: Make sure you pump the brakes and get a hard pedal before moving the vehicle!

###### Rear Caliper

NOTE: All rear brake pads must always be replaced as a complete set.

Fig. 2:Rear disc brake caliper assembly -- 200SX shown, others similar

1. Raise and safely support the vehicle. Remove the rear wheels.
2. Remove the parking brake cable stay fixing bolt and the lock spring.
3. Remove the brake fluid hose from the caliper.
4. Remove the lower caliper-to-torque member pin bolt and raise the caliper.
5. Remove the pad retainers, the pads and the shims.
6. Remove the upper caliper-to-torque member pin bolt and remove the caliper.

   To install:

7. Clean the piston end of the caliper body and the area around the pin holes. Be careful not to get oil on the rotor.
8. Using a pair of needle nose pliers, carefully turn the piston clockwise back into the caliper body; remove some brake fluid from the master cylinder, if necessary. Take care not to damage the piston boot.
9. Coat the pad contact area on the mounting support with a silicone based grease.
10. Install the new pads, shims and the pad springs.

    NOTE: Always use new shims.

11. Install the caliper body into position and torque the caliper-to-torque member pin bolts to 28-38 ft. lbs. (38-52 Nm) on 1993-94 Sentra and 16-23 ft. lbs. (22-31 Nm) on all other models.
12. Reconnect the brake fluid hose and tighten the flare nut to 12-14 ft. lbs. (17-20 Nm).
13. Install the lock spring and the parking brake stay fixing bolt.
14. Bleed the brake system and top off the master cylinder as necessary.
15. Replace the wheel, lower the vehicle.

    NOTE: Make sure you pump the brakes and get a hard pedal before moving the vehicle!