ECU NISSAN 300ZX 1984 Z31 Engine Lubrication And Cooling System Workshop Manual

COOLING SYSTEM -Water Pump-
Drain coolant from right side drain cocks on cylin-
der block and radiator CAUTION.
When removing water pump assembly, be careful
16- 21 N m I1 6 2 1 kgm. 12- Eft-lbl Always replace with new gasket.
To avoid deforming timing cover, make sure there
is adequate clearance between cover and hose
clamp.
After installing water pump, connect hose
and
tester.
SLC554
Inspection
end play and rough operation clamp securely, then check for leaks using cap
LC-10

COOLING SYSTEM -Thermostat-
Description (Bottom by-pass coolant flow)
- water OUtkt Coalant flow out
through water Outlet Thermostat
Open A few
r) close Much
SLC565
Disassembly and Assembly
CAUTION:
Drain coolant from drain cocks on cylinder block side and radiator.
Remove radiator shroud, cooling fan and water suction pipe securing bolt, then remove thermostat.
Always replace with new gasket.
After installation. run engine for
a few
and check for leaks. minutes,
SLC555 16.21 N m (1 6.2 1 kg-m, 12.15 ft-lbl
LC-11

SERVICE DATA AND SPECIFICATIONS (S.D.S.)
Engine Lubri
Oil pressure check
Engine rpm Approximate discharge
Dresure kPa
Ikdcm’, DII)
600 78 (0 8,ll I
1,200 196 (2,281
2,000 294 (3,431
4.000 392 14.571
011 pump
SLC573
Unit mm Inn1
Height H, H*
Except turbo model 18 5 IO 7281
Turbo model 15 5 IO 6101 21 5 (0 846)
12 5 IO 4921
Unit mm lml
0 11 -0 20 IO 0043 -0 0079) Body to Outer gear
clearance @
inner gear to CreKent clearance @
Outer gear to crescent
clearance
@
Housing to mnergear
0 12 -0 23 10 0047 -0 00911
0 21 -0 32 (0 0083 -0 01261
005-009 100020-000351 Clearance 0
0 05 0 11 (0 0020 - 0 0043) Housing to outer gear
clearance
@
Oil pressure regulator valve
Valve spring free length xxxxx mm On1
Valve spring assembly length
Opening pressure
373.412
xxxxx mm/N lmm/kg, dlbl
kPa Ikglcrn’. Pril/rpm 13 8.4 2. 54 - 601/2,000 rpm
tion System
Tightening torque
Unlt Nm kg-m it-lb
011 Pumpsecuring bolt M6
M8
011 pump cover screw
Regulator
valve cap bolt
081 strainer bolt
M6
M8
011 pressure switch
Turbocharger
Oil inlet tube to
cylinder block
011 inlet tube to turbocharger
011 outlet pipe to
turbochar~er
6-7
12.16
4-5
39 -49
63-83
16-21
10
- 16
15-20
8 11
8-11
06-07
12-16
04-05
4-5
0 64 -0 85
16-2
1
10-16
15-20
08-1 1
08-1 1
43-51
9-12 29-36
29-36
46-61
12-15
7-12
11 14
58 80
58-80
LC-16

SERVICE DATA AND SPECIFICATIONS (S. D.S.)
Engine Cooling System
Radiator
Unit kPa lkg/cm'. psi1
Cap relief pressure
Leakase terr mesure
59 98106 10.9-141
157
I1 6.231 ~~ ~
Thermostat
Standard
76 5 I1701 Valve opentng temperature
Maximum
valve lift
"C I'FI
mmPC Id FI 10190 IO 39/194) ~ ~~~
~ ~
~
Fan coupling
Cut Off point rpm LOW 750
Hlgh Except turbo model 2.450
Turbo model 2.700
Low+ Hightemperature'C I'FI 60.70 1140.1581
Temperature switch (Turbocharged model)
Operatmg temperatwe
OFF - ON "C I'FI 100 (2121
Tightening torque
Unit Nm kgm ft-lb
Water pump securing bolt 16 -21 1621 12-15
Thermostat housing 16-21 16-21 12-15 securing bolt
Water inlet securing bolt
16. 21 16-21 12-15
Water outlet securing bolt 16.21 16-21 12-15
Coolant filler housing bolt 3 - 4 03-04 22-29
Radiator securing bolt 3 -4 03-04 22-29
Radiator hose clamp 3-5 03-05 22-36
Cooling fan securing bolt 6 - 10 06-10 43-72
Fan Coupling securing bolt 6 - 10 06-10 43-72
_- LC-1 f