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

ENGINE LUBRICATION &
COOLING SYSTEMS
i
SECTION LC
CONTENTS
ENGINE LUBRICATION SYSTEM
ENGINE LUBRICATION SYSTEM -Oil Pump
ENGINE LUBRICATION SYSTEM -Oil Pressure Relief Valve
ENGINE LUBRICATION SYSTEM
- Lubricating Oil Passage for Turbocharger
COOLING SYSTEM
COOLING SYSTEM -Water Pump
COOLING SYSTEM -Thermostat
COOLING SYSTEM
- Radiator
COOLING SYSTEM -Cooling Fan
COOLING SYSTEM
- Electric Cooling Fan for Turbocharger
SERVICE DATA AND SPECIFICATIONS
(S D S 1
SPECIAL SERVICE TOOLS
LC- 2
LC- 4
LC- 6
LC- 7
LC- 8
1c-10
1c-11
1c-13
LC- 14
1c-15
1c-16
LC-I 8

ENGINE LUBRICATION SYSTEM
Oil Pressure Check
Be careful not to burn yourself, as the englne and
oil may be hot
1 Warm up engine
2 Stop engine and remove oil pressure switch
SLC545
3 Install pressure gauge
4 Start engine and check oil pressure with engine
running under no-load
Approximate discharge pressure
I kPa (kglcm2, psi1 Engine rpm
1,200 196 (2.281
2,000 294 (3.431
i 4.000 392 (4.571
Oil pressure at 600 rpm (Idling) should be more
than 78 kPa (0.8 kg/cm2, 11 PSI)
ST25051001 4
In-vehicle service)
The above table shows data tested when SAE
1OW-30 oil is used and oil temperature is between
77 and 83°C (171 and 181°F). Slight difference
will
be found because of oil viscosity or oil tem-
perature If difference is extreme, check oil passage
and
oil pump for oil leaks
LC-3

ENGINE LUBRICATION SYSTEM -Oil Pump-
Visually inspect components for wear and
damage
Check
oil pressure regulator valve sliding sur-
face and valve spring
Washer Spr'ng 7
Regulalor, ,/ valve
SLC295
Using a feeler gauge, check the following clear-
ance
SLC550
tion
If it exceeds the limit, replace gear set or entire oil
pump assembly.
Unit rnrn (in)
I 011 -020(00043 000791 Body to outer gear
clearance
(i7
Outer gear to crescent 0 21 - 0 32 (0 0083 0 0126)
LC-5

ENGINE LUBRICATION SYSTEM - Oil Pressure Relief Valve
Inspection
1
Inspect for its smooth operation by pushing ball
-- _A
SLC551
LC-6

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