BR-24
BRAKE BOOSTER
Revision: 2006 November2007 350Z
Removal and InstallationNFS0000M
REMOVAL
CAUTION:
Be careful not to deform or bend brake piping while removing and installing the brake booster.
Replace clevis pin if it is damaged.
Be careful not to damage brake booster stud bolt threads. If brake booster is tilted or inclined dur-
ing installation, the dash panel may damage the threads.
Attach the check valve in the correct orientation.
1. Remove vacuum hose from the brake booster. Refer to BR-25, "
VACUUM LINES" .
2. Remove the brake master cylinder. Refer to BR-24, "
Removal and Installation" .
3. Remove the brake piping between brake master cylinder and ABS actuator and electric unit (control unit).
Refer to BR-12, "
Hydraulic Circuit" .
CAUTION:
For M/T vehicles with remove the brake piping after removing the clutch reservoir tank bolt.
4. Remove the brake pedal attachment snap pin and clevis pin from inside the vehicle.
5. Remove the nuts on the brake booster and brake pedal assembly.
6. Remove brake booster assembly from the engine compartment side.
INSPECTION AFTER REMOVAL
Output Rod Length Inspection
1. Using a handy vacuum pump, apply a vacuum of −66.7 kPa (−
500 mmHg,−19.69 inHg) to the brake booster.
2. Check output rod length.
INSTALLATION
1. Loosen the lock nut to adjust the input rod length so that the
length “B” (in the figure on the right) satisfies the specified value.
2. After adjusting “B”, temporarily tighten the lock nut to install the
booster assembly to the vehicle. At this time, make sure to
install a gasket between the booster assembly and the vehicle.
3. Connect the brake pedal with the clevis of the input rod.
4. Install the pedal bracket mounting nuts and tighten them to the
specified torque.
5. Install the brake piping between brake master cylinder and ABS
actuator and electric unit (control unit). Refer to BR-12, "
Hydraulic Circuit" .
6. Install the master cylinder to the booster assembly. Refer to BR-24, "
Removal and Installation" .
7. Adjust the height and play of the brake pedal. Refer to BR-7, "
ADJUSTMENT" .
8. Tighten the lock nut of the input rod to the specified torque. Refer to BR-23, "
Components" .
9. Refill new brake fluid and bleed air. Refer to BR-11, "
Bleeding Brake System" . Standard dimension when vacuum −66.7 kPa
(−500 mmHg, −19.69 inHg)
With TCS : 10.4 mm (0.409 in)
With VDC : −6.2 mm (−0.244 in)
SBR208E
Length “B” : 125 mm (4.92 in)
SGIA0060E
FRONT DISC BRAKE
BR-27
C
D
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B
BR
Revision: 2006 November2007 350Z
ComponentsNFS000AT
OTHER THAN BREMBO CALIPERS
WARNING:
Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne
particles or other materials.
CAUTION:
While removing cylinder body, do not depress brake pedal because piston will pop out.
It is not necessary to remove torque member mounting bolts on torque member and brake hose
except for disassembly or replacement of caliper assembly. In this case, hang cylinder body with a
wire so that brake hose is not under tension.
Do not damage piston boot.
If any shim is subject to serious corrosion, replace it with a new one.
Always replace shim and shim covers as a set when replacing brake pads.
Keep disc rotor clean of brake fluid.
Burnish the brake pads and disc rotor mutually contacting surfaces after refinishing or replacing
rotors, after replacing pads, or if a soft pedal occurs at very low mileage. Refer to BR-38, "
Brake
Burnishing Procedure" .
1. Union bolt 2. Copper washer 3. Brake hose
4. Cap 5. Bleed valve 6. Sliding pin bolt
7. Piston seal 8. Piston 9. Piston boot
10. Cylinder body 11. Sliding pin 12. Torque member mounting bolt
13. Washer 14. Sliding pin boot 15. Bushing
16. Torque member 17. inner shim cover 18. inner shim
19. Inner pad 20. Pad retainer 21. Pad wear sensor
22. Outer pad 23. Outer shim 24. Outer shim cover
Refer to GI-11, "
Components" and the followings for the symbols in the figure.
1: Apply rubber grease.
2: Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease.
3: Apply polyglycol ether based lubricant.
: Apply brake fluid.
PFIA0746J
FRONT DISC BRAKE
BR-29
C
D
E
G
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B
BR
Revision: 2006 November2007 350Z
Burnish the brake pads and disc rotor mutually contacting surfaces after refinishing or replacing
rotors, after replacing pads, or if a soft pedal occurs at very low mileage. Refer to BR-38, "
Brake
Burnishing Procedure" .
Removal and Installation of Brake Pad (Other than Brembo Calipers)NFS000AU
REMOVAL
1. Remove tires from vehicle with a power tool.
2. Remove lower sliding pin bolt.
3. Hang cylinder body with a wire, and remove pads, shims and
pad retainers from torque member.
CAUTION:
When removing pad retainer from torque member, lift pad
retainer in the direction shown by arrow (shown in the
figure) so as not to deform it.
Do not damage piston boot.
Keep disc rotor clean of brake fluid.
INSTALLATION
1. Apply PBC (Poly Butyl Cuprysil) grease or silicone-based
grease between pad retainer and pad.
2. Install pad retainers and pad assemblies to torque member.
CAUTION:
Inner pad and outer pad have pad-return mechanism on
upper side of pad retainer. When installing pad to torque
member, be sure to install pad return lever to pad wear sen-
sor securely.
3. Install cylinder body to torque member.
CAUTION:
When replacing pads with new ones, press in piston until
pads can be installed. In this case, carefully monitor brake fluid level in reservoir tank because
brake fluid will return to master cylinder reservoir tank.
4. Install lower sliding pin bolt, and tighten it to the specified torque. Refer to BR-27, "
Components" .
5. Secure disc rotor with wheel nuts. Depress brake pedal a few times until it gets a responsive touch.
6. Check front disc brake for drag.
7. Install tires to vehicle.
SBR433D
SBR556E
SBR557E
FRONT DISC BRAKE
BR-31
C
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BR
Revision: 2006 November2007 350Z
2. Attach pad.
CAUTION:
Attach the pad with wear sensor to the outer side.
The side of the shim with the larger cutouts should be on
the entry side of the disc rotor spin.
3. Insert the upper pad pin from the inner cylinder side, then insert
firmly to the outer cylinder side through the hole in the top of the
pad.
4. As shown in the figure, place the top of the cross spring over the
top pad pin, press in the cross spring, push the lower pad pin
from the inner cylinder side to the outer cylinder side, and
secure the cross spring.
5. Insert the clip in the small hole at the end of the pad pin.
CAUTION:
If the clip is not fully attached, the pad pin or the pad could
fall out while the vehicle is in motion.
6. Install tires to vehicle.
Removal and Installation of Brake Caliper Assembly (Other than Brembo Cali-
pers)
NFS000AV
REMOVAL
1. Remove tires from vehicle with a power tool.
2. Fasten disc rotor using wheel nut.
3. Drain brake fluid gradually (from bleed valve while depressing brake pedal). Refer to BR-10, "
Drain and
Refill" .
4. Remove union bolt, and then remove brake hose from caliper
assembly.
5. Remove torque member mounting bolts (from torque member),
and remove caliper assembly (from vehicle with a power tool).
CAUTION:
Do not drop brake pad.
6. Remove disc rotor.
CAUTION:
Put matching marks on wheel hub assembly and disc rotor,
if it is necessary to remove disc rotor.
INSTALLATION
CAUTION:
Refill with new brake fluid “DOT 3”.
Do not reuse drained brake fluid.
1. Install disc rotor.
CAUTION:
Put alignment marks on disc rotor and wheel hub at the time of removal when reusing disc rotor.
2. Install caliper assembly to vehicle, and tighten torque member mounting bolts to the specified torque.
Refer to BR-27, "
Components" .
CAUTION:
Before installing torque member to vehicle, wipe oil and grease on washer seats on steering
knuckle and mounting surface of torque member.
PFIA0275E
PFIA0276E
SFIA0140E
BR-32
FRONT DISC BRAKE
Revision: 2006 November2007 350Z
3. Install a projection of brake hose metal fitting by aligning with protrusions on cylinder body, and tighten
union bolt to the specified torque. Refer to BR-27, "
Components" .
CAUTION:
Do not reuse copper washers for union bolts.
Assemble brake hose securely on caliper assembly.
4. After installing caliper assembly, refill with new brake fluid and bleed air. Refer to BR-11, "
Bleeding Brake
System" .
5. Install tires to vehicle.
Removal and Installation of Brake Caliper Assembly (With Brembo Calipers)NFS0000X
REMOVAL
1. Remove tires from vehicle with a power tool.
2. Drain brake fluid. Refer to BR-10, "
Drain and Refill" .
3. Remove the brake pad. Refer to BR-30, "
Removal and Installation of Brake Pad (With Brembo Calipers)" .
4. Remove the brake tube flare nut using a flare wrench.
5. Remove the brake tube bracket from the knuckle spindle.
6. Remove the caliper bolt and remove the caliper assembly from the vehicle.
7. Remove disc rotor.
CAUTION:
Put matching marks of wheel hub assembly and disc rotor, if it is necessary to remove when
removing disc rotor.
INSTALLATION
CAUTION:
Refill with new brake fluid “DOT 3”.
Never reuse drained brake fluid.
1. Install disc rotor.
CAUTION:
Put alignment marks on disc rotor and wheel hub at the time of removal when reusing disc rotor.
2. Install caliper assembly to the vehicle, and tighten bolts to the specified torque.
CAUTION:
When attaching the caliper assembly to the vehicle, wipe
any oil off the knuckle spindle washers and caliper assem-
bly attachment surfaces.
3. Attach the brake tube to the caliper assembly and partially tighten the flare nut.
PFIA0226E
PFIA0226E
FRONT DISC BRAKE
BR-33
C
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BR
Revision: 2006 November2007 350Z
4. Attach the brake tube bracket to the knuckle spindle and tighten
to the specified torque.
5. Using a flare nut crowfoot and torque wrench, tighten the caliper
assembly and brake tube connection flare nut to the specified
torque.
6. Attach brake pad. Refer to BR-30, "
Removal and Installation of
Brake Pad (With Brembo Calipers)" .
7. Refill new brake fluid and bleed air. Refer to BR-11, "
Bleeding Brake System" .
8. Install tires to vehicle.
Disassembly and Assembly of Brake Caliper Assembly (Other than Brembo
Calipers)
NFS000AW
NOTE:
Do not remove torque member, brake pads, shims, shim covers and pad retainers, when disassembling or
assembling cylinder body.
DISASSEMBLY
1. Remove caliper assembly from vehicle. Refer to BR-31,
"Removal and Installation of Brake Caliper Assembly (Other
than Brembo Calipers)" .
2. Remove sliding pin bolts from cylinder body, and remove pads,
shims, shim cover and pad retainers from torque member.
CAUTION:
When removing pad retainer from torque member, lift the
pad retainer in the direction shown by arrow (shown in the
figure) so as not to deform it.
3. Remove sliding pins and sliding pin boots from torque member.
4. Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove pistons and piston boots.
CAUTION:
Do not get fingers caught in the pistons.
5. Using a flat-bladed screwdriver, remove piston seals from cylin-
der body.
CAUTION:
Be careful not to damage the inner wall of cylinder.: 10.8 – 15.6 N·m (1.1 – 1.5 kg-m, 8 – 11 ft-lb)
: 14.8 – 17.6 N·m (1.5 – 1.7 kg-m, 11 – 12 ft-lb)
PFIA0229E
SBR556E
BRB0032D
SFIA0141E
BR-34
FRONT DISC BRAKE
Revision: 2006 November2007 350Z
INSPECTION AFTER DISASSEMBLY
Cylinder Body
CAUTION:
Use new brake fluid to clean. Do not use mineral oils such as gasoline or kerosene.
Check the inner wall of cylinder for corrosion, wear, and damage. If a malfunction is detected, replace cyl-
inder body.
Minor flaws caused by corrosion or a foreign material can be removed by polishing a surface of the inner
wall with a fine sandpaper. Replace cylinder body, if a malfunction is detected.
To r q u e M e m b e r
Check for wear, cracks, and damage. If a malfunction is detected, replace applicable part.
Piston
CAUTION:
The piston sliding surface is plated. Do not polish with sandpaper.
Check piston surface for corrosion, wear, and damage. If a malfunction is detected, replace applicable part.
Sliding Pin, Sliding Pin Bolt, and Sliding Pin Boot
Check sliding pins and sliding pin boots for wear, damage, and cracks. If a malfunction is detected, replace
applicable part.
ASSEMBLY
1. Apply polyglycol ether based lubricant to the piston seal, and
install them to the cylinder body.
CAUTION:
Do not reuse piston seal.
2. Apply rubber grease to piston boots. Cover the piston end with
piston boot, and install cylinder-side lip on piston boot properly
into groove on cylinder body.
CAUTION:
Do not reuse piston boot.
3. Apply brake fluid to piston, and press piston into cylinder body
by hand to assemble piston-side lip on piston boot properly into
a groove on piston.
CAUTION:
Press piston evenly and change pressing point to prevent
inner wall of cylinder from being rubbed.
4. Install sliding pins and sliding pin boots to the torque member.
SFIA2920E
SFIA2432E
SBR574
FRONT DISC BRAKE
BR-35
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BR
Revision: 2006 November2007 350Z
5. Install the torque member to the steering knuckle and tighten the
mounting bolts to the specified torque. Refer to BR-27, "
Compo-
nents" .
CAUTION:
Before installing torque member to vehicle, wipe off oil and
grease on the washer seats on steering knuckle and the
mounting surface of the torque member.
6. Install pad retainers to torque member.
7. Press in piston until pads can be installed, and then install cylin-
der body to torque member.
8. Install cylinder body, and tighten sliding pin bolt to the specified
torque. Refer to BR-27, "
Components" .
9. Position a projection of brake hose metal fitting by aligning with protrusions on cylinder body and tighten
union bolt to specified torque. Refer to BR-12, "
Hydraulic Circuit" .
CAUTION:
Assemble brake hose securely to cylinder body.
Do not reuse copper washer for union bolts.
10. After installing caliper assembly, refill with new brake fluid and bleed air. Refer to BR-11, "
Bleeding Brake
System" .
DISC ROTOR INSPECTION
Visual Inspection
Check surfaces of disc rotor for uneven wear, cracks, and serious damage. If a malfunction is detected,
replace applicable part.
Runout Inspection
1. Using wheel nuts, secure disc rotor to wheels hub. (2 or more positions)
2. Using a dial indicator, check runout.
NOTE:
Make sure that wheel bearing axial end play is with in the speci-
fication before measuring runout. Refer to FA X - 4 , "
On-Vehicle
Inspection" .
3. If runout is outside limit, find the minimum runout point by shift-
ing the mounting positions of 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.]
Thickness Inspection
Using a micrometer, check thickness of disc rotor. If thickness is out-
side standard, replace disc rotor.
SBR557E
Measurement point:
At a point 10.0 mm (0.394 in) from outer edge of disc
Runout limit (with it attached to the vehicle):
0.035 mm (0.0014 in) or less
SBR019B
Standard thickness : 28.0 mm (1.10 in)
Repair limit thickness : 26.0 mm (1.02 in)
Maximum uneven wear (measured at 8 positions)
: 0.015 mm (0,0006 in) or less
SBR020B