flat tire NISSAN 300ZX 1984 Z31 Maintenance Workshop Manual

CHASSIS AND BODY MAINTENANCE
Checking Parking Brake
Pull lever with specified amount of force
Check lever stroke and smooth operation
Pullmg force . 196 N I20 kg. 44 Ibl
\' \ \' '
Number of notches 8 -9
SMA436
2 Use adjuster to adjust lever stroke
SMAl35A
3 Bend parking brake warning lamp switch plate
down
so that brake warning light comes on
when ratchet
at parking brake lever IS pulled
one notch and goes out when
fully released
Checking Tire Condition
TIRE CONDITION
0 When tires wear and tread wear indicators
appear, replace them with new ones
Tread wear indicaror Tire iread
WHO24
0 Check tread and side walls for cracks, holes,
separation or damage.
SMAS39A
0 Tire valves for air leakage
TIRE INFLATION
Tire
pressure should be measured when tire is cold.
Tire pressure should be
set to the specifications
on the tire placard located in the vehicle.

CHASSIS AND BODY MAINTENANCE
,Checking Tire Condition (Cont'd)-
Abnormal tire wear
Correct abnormal tire wear according to the chart
shown below
Condition
Shoulder wear
Center wear
Feathered edge
Toe-in or toe out wea
Uneven Wear
Probable cause
Underinflation
lboth sides wear) Incorrect wheel
camber lone side wear1 Hard cornering
Lack of rotation
. Overlnflatlon
Lack of rotation
.Incorrect toe
rn Incorrect camber or carter
Malfunctioning rurpenrm
v Unbalanced wheel v Our of round
brake drum
Other mechantcal conditions Lack Of rotation
Corrective actton
Measure and ad-
just pressure . Repar. or replace
axle and rurpen- IlO" parts
.Reduce speed . Rotate tires
Measure and
Rotate tires
adlust pressure
*Adlust toe In
Repa~r. or replace axle and iuwm
SlO" parts
If necessary.
rel"6tall
Repar replace or,
m Balance or replace Correct or replace
m Correct or replace
v Rotate tires
SMA068
Tire Rotation
Radial Tire
Right front Right rear
a=-
-== Left rear
Left front
4 WHEELS SMA73SA
MA-29

CHASSIS AND BODY MAINTENANCE
Tire Rei
CAUTION.
Different types of tires, such as bias, bias
belted and radial
tires, must not be mixed
under any circumstances
When replacing
a tire, use a tire of the same
size
Do not use tires and wheels other than those
recommended
Do not mix tires of different brands or tread
patterns
When replacing standard
tires with those tires
of an oprional recommended size and of
different diameter, the speedometer must be
recalibrated
To install wheel, tighten wheel nuts in criss-
cross fashion
SMA737A
To install an aluminum wheel, proceed as
(1) Snugly tighten all nuts after the wheel is
follows
positioned
icement
(2) Slightly pull the wheel back to properly
align the nuts with bolt holes in the wheel,
and tighten the nuts
as much as possible
with
your fingers
Align nuts with bolt haler in wheel and evenly tighten nuts each one a little at a time
SMAOll
(3) Tighten wheel nuts evenly with a wheel wrench
Be sure to check the wheel nuts for tightness, after
the aluminum wheel
has been run for the first
1,000 km (600 miles) (also in case of repairing
flat tires, tire rotation, etc ).
Replace if necessary.
in crtss-cross fashion
MA-30

CHASSIS AND BODY MAINTENANCE
Wheel Nut
CAUTION
0 Three types of wheel nuts are used, one is
designed for use with steel wheels, one for
use with aluminum wheels, and one for use
with spare wheels. Do not mix different types
of wheel nuts.
0 Be careful not to smear threaded portion of
bolt and nut
as well as seat of nut with oil or
grease.
For spare wheels only For aluminum wheels only
For steel wheels only
78 -98 N m 180-100kg-m. 5s 172 ft-lb, SMA438
Tire Repair
CAUTION
When replacing tire, take extra care not to damage
tire bead, rim-flange and bead seat.
Install tire, noting the following items
a. Install valve core and inflate to proper pressure.
Check
the locating rings of the tire to be sure
they show around the rim flanges on both sides
b. Check valves for leakage after inflating tires.
c.
Be sure to tighten valve caps firmly by hand
WARNING:
When, while tire
is being inflated, bead snaps
over safety hump,
it might break. Thus, to avoid
serious personal
injury, never stand over tire when
inflating it Never inflate to a pressure greater than
40 psi (275 kPa). If beads fail to seat at that
pressure, deflate
the tire, lubricate it again, and
then reinflate it. If the tire is overinflated, the
bead might break, possibly resulting
in serious
personal inlury.
Wheel Inspection
Check wheel rim (expecially rim flange and
bead
seat) for rust, distortion, cracks or other
damage Examine wheel rim for
lateral and radial runout,
using dial gauge
Lateral runout (A) and radial runout (B)
Steel wheel .. Less than
Aluminum wheel
. Less than
1 0 mm (0.039 in)
0 5 mm (0 020 in)
Difference between right and
left lateral runout.
Steel wheel .. Less than
Aluminum wheel
Less than
0.5 mm (0 020 in)
0.2 mm (0.008 in)
6 B
Ail..,A
SMA074
Replace wheel when any of the following
problems occurs.
a
b Elongated bolt holes
c
d. Air leaks through welds
e
Bent, dented or heavily rusted
Excessive lateral or radial runout
Wheel nuts
will not stay tight
MA-31

CHASSIS AND BODY MAINTENANCE
Balancing Wheels
Cause
Symptom
of unbalanci
correct,vt
action
Wheel static
unbalance
Wheel tramp
Wheel shimmy
lalance statically
Place balance weights here
L0CatlO"J
Wheel dynamic
unbalance
Wheel shimmy
Balance dynamically
Wheel shimmy
n
Heavy locatnoni
u
Wheel shimmy
SMAO7S
Spare Tire
This model is equipped with the Space Saver Spare
tire or the Foldable Spare tire
The spare tire
is designed for emergency use only
It
IS stored in a deflated condition
An inflator (canister or air pump) has been
provided to inflate the spare
The spare tire can be used repeatedly for
emergency situations However, the canister must
be replaced after each inflation
Be sure to obtain the proper size canister for spare
tire
size
CAUTION:
The spare tire
is restricted in driving speed up to a
maximum
of 80km/h (50MPH) for short
distances and emergency use only.
INFLATION WITH APPROVED INFLATOR
1 Before changing tire, carefully read the caution
and directions affixed on both the inflator and
the spare tire
2 Remove the uninflated spare tire and the
inflator from rear compartment
WARNING. Do not inflate at
this point.
3 Jack up front or rear of vehicle as required and
remove the damaged
tire Then mount the
uninflated spare
tire to the axle (Tighten
wheel nuts slightly
)
On aluminum wheels equipped vehicles be sure to
use spare wheel nuts in the tool bag
The wheel nuts for aluminum wheels must not be
used on the spare tire wheel to avoid the wheel
coming off the axle and causing personal injury.
4 Using Canister
(1) With tire valve at 6 o'clock position. inflate the
spare tire with the canister Place tire canister
on the
tire inflaction valve and push squarely
until
gas can be heard entering the tire It takes
about
3 minutes
WARNING:
The metal parts of the canister become extremely
cold during inflation and can cause frost bite.
Therefore, avoid contact with the metal, use a
glove or other means
of protection.
MA-32

CHASSIS AND BODY MAINTENANCE
Spare Til
(2) To ensure complete emptying of the canister,
hold the canister in position for one minute
after sound stops
If temperature is below -10°C (14OF), the
canister must be warmed on
the windshield
defroster for five to ten minutes to provide
tire
inflation
b. In cold weather, the tire may not look fully
.inflated Therefore, drive slowly for the
first
mile, as the tire temperature rises the pressure
will mcrease.
a
Using Air Compressor
(1) Remove the valve cap from the spare tire and
securely connect the air pump hose in
its place
(2) Connect the power cord plug of the air pump
to the cigarette lighter socket The spare
tire
may be inflated to the recommended pressure
28 psi (200 kPa) in about 6 minutes Adjust
the
tire pressure per the tire placard with tire
pressure gauge
If the air pump operation is slow, run the engine
while the air pump is operating In this case,
remove jack with
the spare tire attached to the
axle.
WARNING:
0
0
Do not run the engine in closed space or with
the car being jacked up
Do not touch the air pump with the bare hands
while
it is operating for it may become quite
hot.
(3) Disconnect the power cord plug from socket
Check the
tire for air leakage, and then
securely install and tighten the valve cap
5 Lower car and fully tighten wheel nuts
Do not
install the wheel cover on the spare tire
DEFLATION
1 Deflate tire by depressing button on tire
inflation valve or by removing valve core
WARN1 NG.
To avoid personal injury, do not inhale the
gas
which is vented while the tire is deflating.
(Cont'd)
2 Flatten tire The spare tire becomes folded
3
REPAIR
Only qualified tire experts are authorized to
dismount the spare tire from
its rim or repair it in
any way Improper service can result
in serious
personal injury
Contact aumorized B.F. Goodrich dealers (for
Space Saver Spare tire)
or authorized Bridgestone
or DATSUN dealers (for Foldable Spare tire)
if
setvice is required.
iqradually while deflating
Store tire in rear compartment
MA-33

SERVICE DATA AND SPECIFICATIONS (S.D.S.)
Chassis and Body Maintenance (Cont'd)
Parklng brake
[at
pulling force 196 N 120 kg. 44 Ibll
Number of notches
Brake Unit mm (mi
8-9
CL28V 2 0 10 0791
Pad wear limit -+--- CL14H 2 0 10 0791
Difference between right
and left lateral
runout mm (In1
Rotor repair limit CL14H 9 0 (0 3541
Pedal free hetght "h"
Mi7 model 182.192 (7 17.7 56)
Less than 0 5 (0 0201'1
0 2 10 0081'2
Pedal depressed height
[Under force
of 490 N 150 kg. 110 Ibl with englne running1 More than 90 13 541
Wheel and tire
Tire inflation
Proper tire pressures are shown on the tire placard affixed
to the driver's side center Dillar of vehicle.
80 km/h 150 MPH)
28 psi 1200 kPa1
Spare tire C78-14
T~re pressure should be checked when tires are COLD
Wheel rim lateral and
radial runout
1
Less than 1 0 10 0391'1 0 5 (0 020)*2 mm 11nl
Wheel balance IMaximvm allowable gr 102) 10 10 35)
unbalance at rim flange1
I 5-601018-2121 Spmng 5 10 181 Tire balancing weight gr 1oz)
I
*1 Steel wheel *2 Aluminum wheel
TIGHTENING TORQUE
Unit Nm
Clutch
Pedal stopper lock nut
Clutch switch lock
nut
Master cyhnder push 8. 12
rod lock nut
Manual transmission
9 1 - 11 8
12 - 15
Drain and filter plugs
FS5W71C 25 - 34
FS5R90A 20.34
Differential carrier
Front axle and front
S"Spe"Sl0"
Side rad lock nut
Drain and flller plugs 39 - 59
14.17
Brake Air bleeder value 7-9
Stop lamp swmh 12-15
lock nut
Brake booster input
rod lock
nut
16 - 22
Wheel and tire
Wheel nut 78.98
kg-m ft-lb
093.12 67-87
12-15 9-11
08-12 58-87
25-35 18-25
20-35 14-25
4-6 29 - 43
14-17 10-12
07-09 51-65
12-15 9-11
16-22 12-16
80.100 58-72
MA-37