Page 49 of 54

REAR DISC BRAKE
BR-49
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Revision: 2006 November2007 350Z
Disassembly and Assembly of Brake Caliper Assembly (With Brembo Calipers)NFS00018
DISASSEMBLY
1. Insert a piece of wood as shown in the figure, blow air in through
the flare nut mounting hole, and remove the piston and piston
boot.
CAUTION:
Do not get fingers caught in the piston.
2. Remove the piston boot from the piston.
3. Using a flat-bladed screwdriver, remove the piston seal.
CAUTION:
Be careful not to damage cylinder inner wall.
Never remove the four bolts from the inner and outer
sides of the caliper. Do not tighten them further, either.
CALIPER INSPECTION
Caliper
CAUTION:
Use new brake fluid to clean. Never use mineral oils such as gasoline or kerosene.
Check for corrosion, wear, or damage to the cylinder inner wall, and replace the caliper if there are
any non-standard conditions.
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.
ASSEMBLY
1. Apply polyglycol ether based lubricant to the piston seal (1), and
install them to the cylinder body.
CAUTION:
Do not reuse piston seal.
PFIA0281E
SFIA1321E
PFIA0872E
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BR-50
REAR DISC BRAKE
Revision: 2006 November2007 350Z
2. Apply 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.
3. Insert the piston into the cylinder body by hand and firmly attach
the piston boot piston-side lip into the piston groove.
CAUTION:
Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.
DISC ROTOR INSPECTION
Visual Inspection
Check surface of the disc rotor for uneven wear, cracks, and serious damage. If any non-standard condition is
detected, replace applicable part.
Runout Inspection
1. Using wheel nuts, fix disc rotor to the wheel hub. (2 or more positions)
2. Inspect runout using a dial gauge.
NOTE:
Make sure that wheel bearing axial end play is with in the speci-
fication before measuring runout. Refer toRAX-6, "
On-Vehicle
Inspection" .
3. If runout is outside the limit, find the minimum runout point by shifting mounting positions of the disc rotor
and wheel hub by one hole.
4. If runout is still outside the limit after performing the above operation, replace or lathe the disc rotor.
[When lathing, use the Pro–Cut PFM On–Car Brake Lathe (Tool No. 38–PFM90.5) or equivalent.]
SFIA1323E
Standard value
(measured at 10 mm (0.39 in) inside the disc edge)
Runout limit (with it attached to the vehicle)
: 0.070 mm (0.0028 in) or less
Runout limit (just for disc rotor)
: 0.040 mm (0.0016 in) or less
BRA0581D
Page 51 of 54
REAR DISC BRAKE
BR-51
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Revision: 2006 November2007 350Z
Thickness Inspection
Using a micrometer, check thickness of the disc rotor. If thickness is
outside the standard, replace disc rotor.
Standard
Standard thickness : 22.0 mm (0.866 in)
Wear limit : 20.2 mm (0.795 in)
Maximum uneven wear (measured at 8 positions)
: 0.015 mm (0.0020 in) or less
SBR020B
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BR-52
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 November2007 350Z
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsNFS00019
Unit: mm (in)
Brake PedalNFS0001A
Brake BoosterNFS0001B
Check ValveNFS0001C
Front Disc BrakeNFS0001D
Brake model Other than brembo With brembo
Front brakeRotor outer diameter × thickness 320 × 28.0 (12.60 × 1.102) 324 × 30.0 (12.76 × 1.181)
Pad length × width × thickness130.0 × 50.0 × 11.0
(5.12 × 1.97 × 0.43)11 7 . 1 × 53.3 × 9.3
(4.61 × 2.098 × 0.366)
Cylinder bore diameter 45.0 × 2 (1.772 × 2) 38 (1.50) × 2 + 44 (1.73) × 2
Rear brake Rotor outer diameter × thickness 308 × 16 (12.13 × 0.63) 322 × 22 (12.68 × 0.87)
Pad length × width × thickness83.0 × 31.9 × 8.5
(3.27 × 1.26 × 0.335)76.6 × 45 × 9.1
(3.016 × 1.77 × 0.358)
Cylinder bore diameter 42.86 (1.6874) 40.0 × 2 (1.575)
Master cylinder Cylinder bore diameter 26.99 (1.0626)
Control valve Valve type Electric brake force distribution
Brake booster Diaphragm diameterCoupe 255 (10.04)Pri: 230 (9.06)
Sec: 205 (8.07)
RoadsterPri: 230 (9.06)
Sec: 205 (8.07)Pri: 230 (9.06)
Sec: 205 (8.07)
Recommended brake fluid DOT 3
Brake pedal height (from dash lower panel top surface)M/T models 153.2 – 163.2 mm (6.03 – 6.43 in)
A/T models 161.5 – 171.5 mm (6.36 – 6.75 in)
Depressed pedal height [under a force of 490 N (50 kg, 110 lb)
with the engine running]M/T models More than 90 mm (3.54 in)
A/T models More than 95 mm (3.74 in)
Clearance between threaded end of the stop lamp switch/ASCD cancel switch and
stopper rubber0.74 – 1.96 mm (0.0291 – 0.0772 in)
Pedal play3 – 11 mm (0.12 – 0.43 in)
Vacuum leakage
[at vacuum of −66.7 kPa (−500 mmHg, −19.69 inHg)]Within 3.3 kPa (25 mmHg, 0.98 inHg) of vacuum for 15 seconds
Output rod lengthWith TCS 10.4 mm (0.409 in)
With VDC−6.2 mm (−0.244 in)
Input rod length125 mm (4.92 in)
Vacuum leakage
[at vacuum of −66.7 kPa(−500 mmHg, −19.69 inHg)]Within 1.3 kPa (10 mmHg, 0.39 inHg) of vacuum for 15 seconds
Brake model Other than brembo With brembo
Brake padStandard thickness (new) 11.0 mm (0.433 in) 9.3 mm (0.366 in)
Repair limit thickness 2.0 mm (0.079 in) 2.0 mm (0.079 in)
Disc rotorStandard thickness (new) 28.0 mm (1.102 in) 30.0mm (1.181 in)
Repair limit thickness 26.0 mm (1.024 in) 28.4mm (1.118 in)
Maximum uneven wear (measured at 8 positions) 0.015mm (0.0006 in) or less 0.015 mm (0.0006 in) or less
Runout limit (with it attached to the vehicle) 0.035 mm (0.0014 in) or less 0.040 mm (0.0016 in) or less
Runout limit (just the disc rotor) 0.020 mm (0.0008 in) or less 0.040 mm (0.0016 in) or less
Page 53 of 54
SERVICE DATA AND SPECIFICATIONS (SDS)
BR-53
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Revision: 2006 November2007 350Z
Rear Disc BrakeNFS0001E
Brake model Other than brembo With brembo
Brake padStandard thickness (new) 8.5 mm (0.335 in) 9.1 mm (0.358 in)
Repair limit thickness 2.0 mm (0.079 in) 2.0 mm (0.079 in)
Disc rotorStandard thickness (new) 16.0 mm (0.630 in) 22.0 mm (0.866 in)
Repair limit thickness 14.0 mm (0.551 in) 20.2 mm (0.795 in)
Maximum uneven wear (measured at 8 positions) 0.015 mm (0.0006 in) or less 0.015 mm (0.0006 in) or less
Runout limit (with it attached to the vehicle) 0.055 mm (0.0022 in) or less 0.070 mm (0.0028 in) or less
Runout limit (just the disc rotor) 0.020 mm (0.008 in) or less 0.040 mm (0.0016 in) or less
Page 54 of 54
BR-54
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 November2007 350Z