2001 INFINITI QX4 Factory Service Manual

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Page 1969 of 2395

INFINITI QX4 2001 Factory Service Manual NOTES

Page 1970 of 2395

INFINITI QX4 2001 Factory Service Manual ENGINE LUBRICATION &
COOLING SYSTEMS
SECTION
LC
CONTENTS
ENGINE LUBRICATION SYSTEM..................................2
Precautions ..................................................................2
LI

ENGINE LUBRICATION &
COOLING SYSTEMS
SECTION
LC
CONTENTS
ENGINE LUBRICATION SYSTEM..................................2
Precautions ..................................................................2
LIQUID GASKET APPLICATION PROCEDURE............2
Preparation ..................................................................2
SPECIAL SERVICE TOOLS........................................2
COMMERCIAL SERVICE TOOL..................................3
Lubrication Circuit ........................................................3
Oil Pressure Check......................................................4
Oil Pump ......................................................................5
REMOVAL AND INSTALLATION.................................5
DISASSEMBLY AND ASSEMBLY................................5
OIL PUMP INSPECTION............................................6
REGULATOR VALVE INSPECTION............................6
OIL FILTER...............................................................7
Oil Cooler .....................................................................7
REMOVAL AND INSTALLATION.................................7
INSPECTION.............................................................8
Service Data and Specifications (SDS).......................8
OIL PRESSURE........................................................8
REGULATOR VALVE.................................................8
OIL PUMP.................................................................8
ENGINE COOLING SYSTEM..........................................9
Precautions ..................................................................9
LIQUID GASKET APPLICATION PROCEDURE............9
Preparation ..................................................................9
SPECIAL SERVICE TOOLS........................................9
Cooling Circuit ...........................................................10
System Check............................................................ 11
CHECKING COOLING SYSTEM HOSES................... 11
CHECKING RADIATOR............................................ 11
CHECKING RADIATOR CAP.................................... 11
CHECKING COOLING SYSTEM FOR LEAKS............12
Water Pump ...............................................................12
REMOVAL AND INSTALLATION...............................12
REMOVAL...............................................................12
INSPECTION...........................................................14
INSTALLATION........................................................14
Thermostat .................................................................16
REMOVAL AND INSTALLATION...............................16
INSPECTION...........................................................16
Water Control Valve ...................................................17
REMOVAL AND INSTALLATION...............................17
INSPECTION...........................................................18
Radiator .....................................................................19
REMOVAL AND INSTALLATION...............................19
Cooling Fan (Crankshaft driven) ...............................20
REMOVAL AND INSTALLATION...............................20
INSPECTION...........................................................20
Refilling Engine Coolant ............................................20
Radiator (Aluminum type) ..........................................21
PREPARATION.......................................................21
DISASSEMBLY........................................................21
ASSEMBLY.............................................................22
INSPECTION...........................................................23
Overheating Cause Analysis .....................................24
Service Data and Specifications (SDS).....................25
THERMOSTAT........................................................25
WATER CONTROL VALVE.......................................25
RADIATOR..............................................................25
GI
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EM
EC
FE
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TF
PD
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IDX

Page 1971 of 2395

INFINITI QX4 2001 Factory Service Manual SEM164F
AEM080
Precautions
LIQUID GASKET APPLICATION PROCEDURENBLC00011. Use a scraper to remove all traces of old liquid gasket from
mating surfaces and grooves. Also, completely clean any oil
from t

Page 1972 of 2395

INFINITI QX4 2001 Factory Service Manual COMMERCIAL SERVICE TOOLNBLC0040
Tool name Description
Deep socket
NT818
Removing and installing oil pressure switch
Deep socket 26 mm, 3/8 drive
Lubrication CircuitNBLC0003
SLC350BA
GI
MA
EM
EC
FE
AT

Page 1973 of 2395

INFINITI QX4 2001 Factory Service Manual SLC351BA
SLC322B
SLC926
Oil Pressure CheckNBLC0004WARNING:
IBe careful not to burn yourself, as the engine and oil may
be hot.
IOil pressure check should be done in ªParking positionº.
1. Check oil

Page 1974 of 2395

INFINITI QX4 2001 Factory Service Manual b. Apply Genuine RTV silicone sealant Part No. 999MP-A7007 or
equivalent to the thread and tighten.
13 - 17 N´m (1.25 - 1.75 kg-m,9-12ft-lb)
Oil Pump
REMOVAL AND INSTALLATIONNBLC00051. Remove timing

Page 1975 of 2395

INFINITI QX4 2001 Factory Service Manual SLC324B
SLC932A
SLC933A
SLC934AB
OIL PUMP INSPECTIONNBLC0007IInstall oil pump with the groove of the inner rotor facing
the oil pump cover.
Using a feeler gauge, straightedge and micrometers, check th

Page 1976 of 2395

INFINITI QX4 2001 Factory Service Manual SLC935AA
4. Check regulator valve to oil pump body clearance.
Clearance:
6 : 0.040 - 0.097 mm (0.0016 - 0.0038 in)
If it exceeds the limit, replace oil pump body.
ALC094
OIL FILTERNBLC0009The oil filt

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