Front
DISASSEMBLY1. Remove the caliper assembly from the vehicle.
2. Remove the sliding pin bolts from the cylinder body, and remove the pad, shim, shim cover and pad retainer from the torque member.
CAUTION: When removing the pad retainer from the torque member, lift the pad retainer in the direction shown by the arrow (shown in the figure) so as not to deform it.
3. Remove the sliding pins and sliding pin boots from the torque member.
4. Place a wooden block as shown at the left, and blow air from the union bolt mounting hole to remove the pistons and piston boots.
5. Using a slotted screwdriver, remove the piston seals from the cylinder body.
CAUTION: Be careful not to damage the inner wall of the cylinder.
CALIPER INSPECTION
Cylinder Body
CAUTION: Use new brake fluid to clean. Never use mineral oils such as gasoline or kerosene.
^ Check the inner wall of the cylinder for corrosion, wear, and damage. If a failure is detected, replace the cylinder body.
^ Minor flaws caused by corrosion or a foreign material can be removed by polishing the surface with a fine sandpaper. Replace the cylinder body, if necessary.
Torque Member
Check for wear, cracks, and damage. If a malfunction is detected, replace the applicable part.
Piston
CAUTION: The piston sliding surface is plated. Do not polish with sandpaper.
Check the piston surface for corrosion, wear, and damage. If a malfunction is detected, replace the applicable part.
Sliding Pin, Pin Bolt, and Pin Boot
Check the sliding pin and sliding pin boot for wear, damage, and cracks. If a malfunction is detected, replace the applicable part.
DISC ROTOR INSPECTION
Visual Inspection
Check the surface of the disc rotor for uneven wear, cracks, and serious damage. If a malfunction is detected, replace the applicable part.
Run Out Inspection
1. Using wheel nuts, fix the disc rotor to the wheels hub. (2 or more positions)
2. Using a dial indicator, check the run out.
Measurement : At a point 10 mm (0.394 inch) from point the outer edge of the disc.
Maximum runout : 0.07 mm (0.0028 inch) or less
CAUTION: Before measuring, make sure that the axle end play is 0 mm.
3. If the run out is outside the limit, find the minimum run out point by shifting the mounting positions of the disc rotor and wheel hub by one hole.
Thickness Inspection
1. Using a micrometer, check the thickness of the disc rotor. If the thickness is outside the standard, replace the disc rotor.
Standard thickness : 28.0 mm (1.10 inch)
Wear limit : 26.0 mm (1.02 inch)
Maximum uneven wear (measured at 8 positions) : 0.015 mm (0.0006 inch) or less
2. If the run out is still out of specification, turn rotor with on-car brake lathe ("MAD, DL-8700", "AMMCO 700 and 705" or equivalent).
ASSEMBLY
CAUTION: When assembling, do not use NISSAN rubber grease (KRE00 00010, AKRE00 0010 01).
1. Apply NISSAN rubber lubricant (KRE12 00030) to the piston seals, and install them to the cylinder body.
CAUTION: Do not reuse the piston seals.
2. Apply brake fluid to the piston boots. Cover the piston end with the piston boot, and install the cylinder-side lip on the piston boot properly into the groove on the cylinder body.
CAUTION: Do not reuse the piston boot.
3. Apply NISSAN brake fluid No. 2500 to the piston, and press the piston into the cylinder body by hand to assemble the piston side lip on the piston boot properly into the groove on the piston.
CAUTION: Press the piston evenly and change the pressing point to prevent the inner wall of the cylinder from being rubbed.
4. Install the sliding pins and sliding pin boots to the torque member.
5. Install the torque member to the knuckle spindle and tighten the mounting bolts to the specified torque.
CAUTION: Before installing the torque member to the vehicle, wipe oil and grease on the washer seats on the knuckle spindle and mounting surface of the torque member.
6. Install the pad retainers to the torque member.
7. After assembling the shims and shim covers to the pad, install it to the torque member.
CAUTION: The inner pad and outer pad have the pad-return mechanism on the upper side of the pad retainer. When installing the pad, be sure to install the pad return lever to the pad wear sensor securely as shown.
8. Install the cylinder body, and tighten the sliding pin bolt to the specified torque.
9. Install the brake hose to the cylinder body and tighten the union bolts to the specified torque.
CAUTION:
^ Assemble the brake hose securely to the protrusions on the cylinder body.
^ Do not reuse the copper washer for union bolts.
10. After installing the caliper assembly, refill with new brake fluid and bleed air.