NISSAN 300ZX 1984 Z31 Maintenance Owner's Manual

CHASSIS AND BODY MAINTENANCE
Checking Front Axle and Front Suspension Parts
(1) Shake each front wheel
Check axle and suspension parts for looseness,
wear or damage.
SMA525A
(2) Retighten all nuts and bolts to the specified
torque
Refer to section
FA for tightening torque
SMA614
SMA615
(3) Check axle and suspension parts for wear,
cracks or damage.
0 Check strut (Shock absorber) for oil leakage
or damage
SMA113
Check suspension ball joint for grease leakage
and ball joint dust cover for damage
SMA7ZJA
MA-21
LL

CHASSIS AND BODY MAINTENANCE
Checking Front Wheel
Bearing Grease
0 Check that wheel bearings operate smoothly,
as well
as axial end play and grease leakage
Smooth turn
0 mm (0 ,"I
SMA724A v
If necessary, adjust wheel bearing preload
to section
FA.
Refer
Checking Rear Axle and
Rear Suspension Parts
0
(1) Shake each rear wheel
Check axle and suspenslon parts for looseness,
wear or damage
SMA525A
(2) Retighten all nuts and bolts to the specified
torque.
Refer
to sectlon RA for tightening torque.
MA-22
.

CHASSIS AND BODY MAINTENANCE
Checking Rear Axle and
Rear Suspension Parts (Cont'd)
(3) Check axle and suspension parts for wear,
cracks or damage
0 Check shock absorber for oil leakage or dam-
age
- SMA726A
--Checking Drive Shaft
Check boot and drive shaft for cracks, wear, dam-
age or grease leakage.
SM A743 A
,Checking Front Wheel Alignment -
PRELIMINARY INSPECTION
Tire pressure
Wheel bearing axial play
Suspension ball joint
Steering linkage and connections
Shock absorber operation
Tighten each front axle and suspension parts
Measure vehicle height (Unladen).
The vehicle must be on a level surface both
fore and
aft, and transversely.
Repair or replace the damaged portion or
parts
Steering gear housing looseness at frame
" U n I aden "
Fuel tank, radiator and engine oil tank all full
Spare tire, lack, hand tools, mats in position
CAMBER, CASTER AND KINGPIN
INCLINATION
Camber, caster and kingpin inclination are preset
at
factory and cannot be adjusted
Camber.
-35 to 55'
Caster :
5"50 - 7"3Q
Kingpin inclination:
12"15' - 13"45'
TOE-IN
1 Mark a base line across the tread
After lowering front of vehicle, move it up and
down
to eliminate friction.
MA-23
4

CHASSIS AND BODY MAINTENANCE
Checking Front Whe
2 Measure toe-in
Liner parallel to center line of body-
Toe-in = A - 8
SMA124 Front
Toe-in:
1 - 3 mm (0.04. 0.12 in)
6-16
3 Town can be adjusted by varying the length
of steering side rods
SMA727A
"A" standard dimension:
37.5 mm (1.476 in)
inner rocket
SST274A
Alignment (Cont'd)
FRONT WHEEL TURNING ANGLE
a Rotate steering wheel all the way right and
left, measure turning angle on inner wheel
SMA127
Turning angle.
Full turns
Inside
Outside
35" - 39"
27"
~ 31"
Toe-out turn (Insideloutside):
22"30/20"
If it is not within speclfication, check rack
stroke.
Refer to section
ST
Rack stroke
r Rack
Tie-rod inner i. socket Tie-rod inner socket
,Rack -1
Unit mm (in) (Cvlander end housing ndel SST223A
MA-24
.

CHASSIS AND BODY MAINTENANCE
Checking Rear
PRELIMINARY INSPECTION
0 Tire pressure.
0 Wheel bearing axial play
0 Shock absorber operation.
0
0 Measure vehicle height (Unladen)
Tighten each rear axle and suspension part
The vehicle must be on a level surface both
fore and
aft, and laterally
Repair or replace the damaged portion or parts
0
"Unladen"
Fuel tank, radiator and engine oil tank all full
Spare
tire, jack, hand tools, mats in position
CAMBER
Camber
is preset at factory and cannot be adjusted
Camber:
-1"55'tO -25'
TOE-IN
1. Mark a base line across the tread
SMA123
nee1 Alignment
2 Measure toe-in
~~ner parallel to center Ime of body-
Toe-in = A - B
, Front 8 SMA124
Toe-in:
-2 to 2 mm (-0.08 to 0.08 in)
3 Toein can be adjusted by inside of rear arm
bushing pins
Unit
Tobl" TObOltl Max 9 6 10 3781 Max 9.6 (0.378)
When performing toe adjustment, always set the
cams in the same position on the right and left rear
arm bushing pins.
MA-25
,,_l

CHASSIS AND BODY MAINTENANCE
-Checking Brake Fluid Level
and Leaks
If fluid level is extremely low, check brake system
for leaks
Changing Brake Fluid
0 Refill with recommended brake fluid "DOT
3".
Do not reuse drained brake fluid.
Be careful not to splash brake fluid on painted
areas.
Drain brake fluid in each
air bleeder valve. 1
SMA26IA
2 Refill until new brake fluid comes out of each
air bleeder valve
Use same procedure as in bleeding hydraulic
system to refill
brake fluid
Refer to section
BR
Checking Brake Booster
Vacuum Hoses, Connections
and Check Valve
Check vacuum lines connections and check valve
for proper attachment,
air tightness, chafing and
deterioration
I rBrake booster
Checking Brake System
Check brake fluid lines and parking brake cables
for proper attachment, leaks, chafing, abrasion,
deterioration, etc
\v
SMA732A
MA-26

CHASSIS AND BODY MAINTENANCE
Checking Disc Brake
Check condltlon of disc brake components
Rotor Condition and thickness
Caliper Operation and leakage
Pad Wear or damage
SMA733A
SMA?34A
A
Checking Foot Brake
Pedal Operation
0 Check brake pedal free height, depressed height
and smooth operation
h Pedal free height H Depressed height Dash floor panel
Pedal free height "h":
M/T model 182 - 192 mm (7.17 - 7.56 in)
AlT model 184 - 194 mm (7.24 - 7.64 in)
More than 90 mm (3.54 in)
Depressed height "H":
If necessary, adjust pedal heights
Refer to section
BR
MA- 2 7

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