Rear

REAR DISC BRAKE

Exploded View BR-29:

Disassembly and Assembly of Caliper Assembly
DISASSEMBLY
1. Remove the sliding pin bolt, and then remove the pad, shim, shim cover, and pad retainer from the torque member and cylinder.
2. Remove sliding pin boot from torque member.





3. Remove the retaining ring from the cylinder body using a screwdriver or suitable tool, as shown.





4. Place a wooden block as shown, and blow air from connecting bolt mounting hole to remove pistons and piston boots.

WARNING: Do not place your finger in front of piston.





5. Remove piston seals from cylinder body using a screwdriver or suitable tool, as shown.

CAUTION: Be careful not to damage cylinder inner wall.

CALIPER INSPECTION
Cylinder Body

CAUTION:
- Use new brake fluid to clean. Never use mineral oils such as gasoline or kerosene.
- Check inner wall of cylinder for corrosion, wear, and damage. If any non-standard condition is detected, replace 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 damage or deformation is present, replace the affected part.

Piston

CAUTION: Since the piston surface is plated, do not repair using sandpaper.

Check piston surface for corrosion, wear, and damage. If any non-standard condition is detected, replace applicable part.

Sliding Pin Bolts and Sliding Pin Boots
Check that there is no wear, damage, or cracks in the sliding pin bolts and sliding pin boots, and if there are, replace them.

ASSEMBLY

CAUTION: Do not use Nissan Rubber Grease (KRE00 00010 or KRE00 00010 01) when assembling.





1. Apply a rubber grease to the piston seal and attach to cylinder body.

CAUTION: Do not reuse the piston seals.





2. Apply brake fluid or rubber grease to the piston boot, place it on the piston, and firmly insert the piston boot cylinder-side lip into the cylinder body groove.

CAUTION: Do not reuse the piston boot.





3. Apply a brake fluid to the piston, insert into the cylinder body by hand and firmly attach the piston boot piston-side lip into the piston boot.

CAUTION: Press the piston evenly and vary the pressing point to prevent cylinder inner wall from being rubbed.





4. Fix piston boot with retaining ring.

CAUTION:
- Make sure the boot is firmly in the cylinder body groove.
- Do not reuse the retaining ring.

5. Attach the sliding pin bolt and sliding pin boot to the torque member.
6. Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease to the rear of the pad and to both sides of the shim, and attach the inner shim and shim cover to the inner pad, and the outer shim and outer shim cover to the outer pad.





7. Attach the pad retainer and pad to the torque member.

CAUTION: When attaching the pad retainer, attach it firmly so that it does not float up higher than the torque member, as shown in the figure.

8. After assembling shims and shim covers to pad, install it to the torque member.
9. Install cylinder body. Tighten sliding pin bolts to the specified torque.