engine NISSAN 300ZX 1984 Z31 Maintenance User Guide

ENGINE MAINTENANCE
Changing Engine Oil and Oil Filter
1
2
Warm up engine, and check for oil leakage
from engine components
Change engine
oil and oil filter
Oil capacity:
With oil filter
Without
oil filter
4.0 p (4-1/4 US qt, 3-1/2 Imp qt)
3.3 2 (3-1/2 US qt, 2-7/8 Imp qt)
* Loose" SMA785A 29 - 39 N m (3 0 .4 0 kg-m, 22 . 29 ft-lbl
a. Be careful not to burn yourself as engine oil
is hot.
b. Be sure to clean drain plug and install with
washer.
c. Before installing new oil filter, wipe oil filter
mounting surface
on cylinder block, and
smear
a little engine oil on rubber seal of oil
filter.
d. When installing oil filter, DO NOT use a
wrench to tighten the filter.
Hand-tighten
ONLY
e. Use recommended engine oil.
Start engine Check area around drain plug and
oil filter for any sign of oil leakage.
Run engine for a few minutes, then turn it off
After several minutes, check oil level
Oil'level should be within this range
c---l 011 level should be IO range maintained
SMA786A
MA-I 1
4

ENGINE MAINTENANCE
Checking and Replacing Spark Plugs
CHECKING AND REPLACING SPARK PLUGS
VG30E
Standard type BCPRGES-11
1 Disconnect spark plug wire at boot Do not
pull on the wires
VG30ET
BCPRGE-11 2. Remove spark plugs with spark plug wrench.
3. After cleaning spark plugs, inspect insulator
for cracks or chips,
gasket for damage or
deterioration and electrode for wear and
burning.
If they are excessively worn, replace
with new spark plugs.
Hot type I BCPRSESI 1
4. Check spark plug gap
BCPR5E-I 1
Slde elecrrode ~~~~
Cold type
Gap 1 0.1 1 mm (0 039 - 0 043 in)
BCPR7ES-11
BCPR7E-11
MA-1 2

ENGINE MAINTENANCE
Checking and Replacing
Spark Plugs (Cont’d)
5 Install spark plugs Reconnect high tension
cables according to
Nos indicated on them.
0 . Spark plug
20 - 29 Nm
(2.0 - 3.0 kg-m, 14 - 22 ft-lb)
Checking Ignition Wires
1. Check the high tension wires for cracks,
damage, burned terminals and proper fit
2. Measure the resistance of the high tension
wires, by shaking it and checking for intermit-
tent brakes
SMA789A
MA-I 3

ENGINE MAINTENANCE
Checking idle Speed (VG30E engine)
Preparation
WARNING:
a. Depress brake pedal while accelerating the engine to prevent forward surge of vehicle.
b. Inspection should
be carried out while shift lever IS in "D" position on automatic transmission equipped
models.
c. After inspection and adjustment have been made, shift the lever to "N" or "P" position.
Engage parking brake and lock both front and rear wheels with wheel chocks.
Turn
off air conditioner and headlamps.
Keep front wheels straight ahead.
c START I 1
Start engine and warm up untgl water
temperature Indicator poinrs to middle of
I
To harness 4
Stop engine and anach adapter harness between ignmon coil primary winding terminals and harness connector Then set
timer under no-load, then run engine at
+
Stop engine and connect idle UP solenoid
harness connector
Dismnnm adapter harness Connector and
connect ignition
coil harness connector io
(- END
MA-I 4
-

ENGINE MAINTENANCE
Checking Exhi
48,000 krn (30,000 miles) OR 24 MONTHS
SERVICE
Exhaust gas sensor should be checked after 48,000
km (30,000 miles) or 24 months of operation
After vehicle has been operated for
48,000 km
(30,000 miles), exhaust gas sensor warning lamp
will come on to indicate that sensor should
be
inspected
Digital type
t
After inspection, disconnect warning lamp harness
connector so that warning lamp will not come on
thereafter.
SMA792A
1st Gas Sensor
MA-1 5
.-I

ENGINE MAINTENANCE
Checking Exhaust Gas Sensor (Cont'd)
Preparation
When checking exhaust gas sensor, make sure that the following are
in good order
0 Battery
0 Hoses
Engine oil and coolant levels
E C C S. components
E.C C S. harness and connectors
Oil filler cap and oil level gauge
Checking procedure
START
Stan engine and warm UP until water
temperature indicator Points
IO middle
of gauge
I +
Run engine at about 2.000 rpm for abut
2 minutes under noload
I
E C C S control unit is turned fully
referring to MIXTURE RA
MA-1 6

CHASSIS AND BODY MAINTENANCE
Checking Clutch System
Check clutch fluid lines for proper attachment,
leaks, chafing, deterioration, etc
SMA741A
Checking M/T Oil
1. Check manual transmission for signs of leakage
SMA429A
2 Check oil level
LFiller plug
SMAl03
Never start engine while checking oil level.
Changing M/T Oil
n
Drain plug
Oil capacity:
FS5W71C and BW T-5 (FS5R90A)
1.9 Liters (4 US pt, 3-3/8 Imp pt)
MA-1 8

CHASSIS AND BODY MAINTENANCE
1 Check automatic transmission for signs of
leakage
SMA430A
2 Check under following conditions
(1) Place selector lever in "P" (PARK) position
and
idle engine
(2) Maintain fluid temperature at 50 to 80°C
(122 to 176'F)
(3) Add oil, if necessary
Use only A/T fluid having "DEXRON"
SMA559A
L/T Fluid
3 Check automatic fluid condition.
Check fluid for contamination to determine
condition of automatic transmission If fluid
is very dark or smells burned, the frictional
material (clutches, band,
etc ) may need re-
placement
Check flwd for COntaminarlOn
r?
,w
Check fluid for smell SMA107
MA-19

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 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