lock NISSAN 300ZX 1984 Z31 Brake System Workshop Manual

BRAKE HYDRAULIC LINE
Removal and Installation
CAUTION
a. When removing and installing brake tube, use
Tool.
b Cover openings to prevent entrance of dirt
whenever disconnecting hydraulic line.
To remove brake hose, first remove flare nut
securing brake
tube to hose, then withdraw
lock spring. Next disconnect the other side
All hoses must be free from excessive bending,
twisting and pulling
Whenever installing brake lines, be sure to
check for
oil leakage by fully depressing brake
pedal
- Inspection
Check brake lines (tubes and hoses) for evidence of
cracks, deterioration or other damage Replace any
damaged
parts.
If leakage occurs around joints, retighten or, if
necessary, replace damaged parts.
BR-3

BRAKE PEDAL
Input rod lock nut
30-40 I3 1.4 1,ZZ- 30)
Pedal bracket
Stop lamp switch
I1 2. 15,9- 111
N rn lkg-m, ft-lb)
Inspection
Check brake pedal for the following items,
servicing
as necessary.
Brake pedal bend
Clevis pin deformation
Crack for any welded portion
SBR822
BR-4

BRAKEPEDAL
Adjustment
Check brake pedal free height from melt sheet
Adjust
if necessary
I1 2.15.9- 111
AS C D switch
I /-k I1 2 - 1 5,9.111
Dash insulator
N m 1kg-m. ft-lbl
sheet
SERE38
H: Free height
M/T
A/T
D: Depressed height
M/T
A/T
I82 - 192 mm (7.17 - 7 56 in)
184 - 194 mm (7.24 - 7 64 in)
More than
90 mm (3.54 in)
More than 90 mm (3.54 in)
Under force of 490 N (50 kg. 110 Ib) with
engine running.
C, : Clearance between pedal stopper and threaded
end
of stop lamp switch.
Cz : Clearance between pedal stopper and threaded
end of A.S.C.D. switch.
0.3 - 1.0 mm (0.012 ~ 0.039 in)
0.3 - 1.0 mm (0.012 - 0.039 in)
0.3 - 3 8 mm (0 012 - 0.150 in)
A: Pedal free play
(1) Adjust pedal free height with brake booster
input rod. Then tighten lock nut.
(2) Adjust clearance "C1" and "C2" with stop
lamp switch and A.S.C
D switch respectively.
Then tighten lock nuts.
(3) Check pedal free play.
Make sure that
stop lamp is off when pedal is
released.
(4) Check brake pedal depressed height with
engine running.
If depressed height
is below the specified
value, check brake system for leaks, accumula-
tion of
air or any damage regarding component
parts (master cylinder, wheel cylinder, etc.),
and make the necessary repairs.
BR-5

REAR DISC BRAKE (CL14H, CL14HB) - Caliper
Pad Replacement
CAUTION:
When cylinder body IS open, do not depress brake
pedal, or piston will pop out.
1 Disconnect parking brake cable, then remove
pin bolts
2 Remove pad retainer, pads and shims.
SBR840
SBR640
3. When inaalllng pads, retract piston into cylin-
der body by turning
it clockwise
Be careful not to damage piston boot or get oil on
rotor.
Always replace shims when replacing pads.
SBR641
Removal and Installation
Disconnect parking brake cable and brake hose,
then remove caliper assembly
u SBRB41
BR-13

REAR DISC BRAKE (CL14H, CL14HB) - Caliper
1 Remove piston by turning it counterclockwise
with suitable long nose pliers.
SBR646
i--/
2 Pry off ring from piston and remove adjusting
nut
SBR648
3 Disassembly cylinder body
(1) Pry off ring A with suitable pliers, then remove
spring cover, spring and seat
SBR651
rnbly
(2) Pry off rmg B, then remove key plate, push rod
and rod
(3) Removepi Bn seal
Be careful not to damage cylinder body
4. Remove return spring and lever
SBR663
SBR656
SBR657
BR-I 4

SERVICE DATA AND SPECIFICATIONS (S.D.S.)
I Front brake
-inspection and Adjustment
(Cont'd)
Rear brake
Pad repair limit
Minimum
thickness
mm lml
Brakemodel I CL28VA I CL28VB I CL14H I CL14HB
2 IO 081 2 IO 081
Mmmum
thcknerr More than
20 0 10 7871 mm (in)
Rotor repair limit I I
More than
9 0 (0 354)
Less than
0 07 IO 00281
Maximum
r"nO"1 Less than
0 07 10 00281 mm lid
Tightening Torque
Item Nm kg-m ft-lb
Brake pedal Pedal bracket to body
.Pedal bracket
to pedal
Stop lamp witch lock
nut
Brake booster
Brake booster to body
Input rod lack nut
Brake booster to
master cylinder
Three-way connector
Three-way connector
to brake tube
Three-way
connector mounting bolt
Brake hose connector
Brake tube flare nut
Wheel cylinder air bleeder
Front disc brake
Baffle plate
Torque member fixing
bolt
Torque member
to
cylinder body
8- 11
30.40 12 15
8-11
16
- 22
8-11
15 - 18
5-7
17 - 20
15 18
7-9
32-43 72.97
22-31
Disc rotor to wheel hub 49 69
Rear disc brake Baffle plate 8-11
Torque member fixing 72 - 97
bolt
Torque member to
22-31
cylinder body
Parkmg brake Center lever type
Control lwer to body 16.21 Adjuster lock nut 31-43
Front cable clamp to
body 8 - 11
08 11
31-41 12-15
08-1 1
16-22
08 11
15-18
05-07
17 20
15 18
07-09
58-80
22
- 30
9-11
58-80 12 16
58-80
11 13
36-51
12.14
11
- 13
51-65
033-044 24-32
73-99 53-72
22-32 16-23
50 70 36-51
08-11 58 80
73-99 53 72
22-32 16-23
16-21 12-15
032-044 23-32
08-11 58-80