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 Exhaust System
Check exhaust pipes, muffler and mounting for
proper attachment,
leaks, cracks, damage, loose
connections, chafing and deterioration
W SMA211A
-Checking Clutch Operation -
Check clutch pedal height, free travel and smooth
omration
Floor carpet
Dash insulator
H Pedal free height A Pedal free travel
SMA558A
Pedal free height "H":
Pedal free travel "A":
195.205 mm (7.68 - 8.07 in)
1 ~ 3 rnrn (0.04 - 0.12 in)
If necessary, adjust clutch pedal free height and
pedal free travel. Refer
to section CL
-Checking Clutch Fluid Level-
If fluid level is extremely low, check clutch system
for leaks
Changing Clutch Fluid
Refill with recommended brake fluid "DOT
3"
Do not reuse drained brake fluid
Be careful not to splash brake fluid on painted
areas.
Drain the fluid in the air bleeder valve
SCLOO9
Refill until the new fluid comes out in the air
bleeder valve
Use same procedure as in bleeding hydraulic
system to refill the fluid
Refer to section CL
MA-I 7
,

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
Changing A/T Fluid
1
2
3
Drain fluid by removing oil pan
Replace gasket with new
one
Refill with fluid and then check fluid level
Oil capacity:
7.0 liters (7-3/8 US qt, &1/8 Imp qt)
Checking Propeller Shaft
Check propeller shaft for damage, looseness or
grease leakage.
Check iwrnal far , wear or damage
Check rube surface for ~ ~~ dents or cracks
4 Check tightening torque
SMA269
-Checking
Differential Gear Oil-
1 Check differential carrier for signs of oil
leakage
SMA432A
2 Check oil level.
o T-
SMA257A
-Changing Differential Gear Oil-
-
SMA363A
Oil capacity.
1.3 Liters (2-3/4 US pt, 2-1/4 Imp pt)
MA-20