NISSAN NAVARA 2005 Repair Workshop Manual

LU-14
OIL PUMP
OIL PUMP
PFP:15010
Removal and InstallationEBS01E5D
REMOVAL
Remove oil pump housing. Refer toEM-79, "PRIMARY TIMING CHAIN".
INSTALLATION
Note the following, and install in the reverse order of removal.
lWhen installing, align crankshaft flat faces with inner rotor flat faces.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level. Refer toLU-5, "ENGINE OIL".
2. Start engine, and check there is no leaks of engine oil.
3. Stop engine and wait for 10 minutes.
4. Check the engine oil level and add engine oil. Refer toLU-5, "
ENGINE OIL".
ComponentsEBS01F6E
lRefer toGI-10, "Components"for symbol marks in the figure.
Disassembly and AssemblyEBS01E5E
DISASSEMBLY
1. Remove oil pump cover.
2. Remove oil pump inner rotor and oil pump outer rotor from oil pump housing.
3. After removing regulator valve plug, remove inner and outer regulator springs and regulator valve.
1. Oil pump housing 2. Oil pump outer rotor 3. Oil pump inner rotor
4. Oil pump cover 5. Regulator valve 6. Regulator valve spring
7. Regulator valve plug
PBIC4055E

OIL PUMP
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INSPECTION AFTER DISASSEMBLY
Oil Pump Clearance
lMeasure the clearance with feeler gauge (A).
Clearance between oil pump outer rotor and oil pump housing
(position B)
Tip clearance between oil pump inner rotor and oil pump outer
rotor (position C)
lMeasure the clearance with the feeler gauge (C) and the
straightedge (A).
Side clearance between oil pump inner rotor and oil pump hous-
ing (position B)
Side clearance between oil pump outer rotor and oil pump hous-
ing (position D)
lCalculate the clearance between oil pump inner rotor and oil pump housing as follows.
OIL PUMP HOUSING INNER DIAMETER
–Measure the inner diameter of oil pump housing with the inside
micrometer (A).
OIL PUMP INNER ROTOR OUTER DIAMETER
–Measure the outer diameter of protruded portion of oil pump
inner rotor with a micrometer (A).
OIL PUMP INNER ROTOR TO OIL PUMP HOUSING CLEARANCE
–(Clearance) = (Oil pump housing inner diameter) – (Oil pump inner rotor outer diameter)Standard : 0.010 - 0.175 mm (0.0004 - 0.0069 in)
Standard : 0.060 - 0.180 mm (0.0024 - 0.0071 in)
PBIC3341E
Standard : 0.030 - 0.090 mm (0.0012 - 0.0035 in)
Standard : 0.030 - 0.090 mm (0.0012 - 0.0035 in)
PBIC3342E
PBIC3344E
PBIC3343E
Standard : 0.030 - 0.095mm (0.0012 - 0.0037 in)

LU-16
OIL PUMP
• If measured/calculated values are out of the standard, replace oil pump assembly.
Regulator Valve Clearance
Measure the inner diameter of valve hole (oil pump cover) (1) and
the outer diameter of regulator valve (2).
(Clearance) = (Valve hole diameter) – (Regulator valve outer diame-
ter)
lIf the calculated value is out of the standard, replace oil pump
assembly.
CAUTION:
lCoat regulator valve with new engine oil.
lMake sure that it falls smoothly into valve hole by its own weight.
ASSEMBLY
Note the following, and assemble in the reverse order of disassembly.
lInstall oil pump inner rotor and oil pump outer rotor with the
punched marks (A) on the oil pump cover side.
A : Inside micrometer
B : Micrometer
Standard : 0.052 - 0.088 mm (0.0020 - 0.0035 in)
PBIC3345E
PBIC3346E

SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS01E5F
OIL PRESSURE
*: Engine oil temperature at 80°C (176°F)
OIL CAPACITY (APPROXIMATE)
Unit: · (Imp qt)
OIL PUMP
Unit: mm (in)
REGULATOR VALVE
Unit: mm (in) Engine speed
rpmApproximate discharge pressure*
kPa (bar, kg/cm
2, psi)
Idle speed More than 120 (1.20, 1.22, 17.4)
2,000 More than 250 (2.50, 2.55, 36.3)
Drain and refillWith oil filter change 7.6 (6-5/8)
Without oil filter change 7.1 (6-1/4)
Dry engine (Overhaul)7.9 (7)
Oil pump housing to oil pump outer rotor radial clearance 0.010 - 0.175 (0.0004 - 0.0069)
Oil pump inner rotor to oil pump outer rotor tip clearance 0.060 - 0.180 (0.0024 - 0.0071)
Oil pump housing to oil pump inner rotor side clearance 0.030 - 0.090 (0.0012 - 0.0035)
Oil pump housing to oil pump outer rotor side clearance 0.030 - 0.090 (0.0012 - 0.0035)
Oil pump inner rotor to oil pump housing clearance 0.030 - 0.095 (0.0012 - 0.0037)
Regulator valve to oil pump housing clearance 0.052 - 0.088 (0.0020 - 0.0035)

LU-18
SERVICE DATA AND SPECIFICATIONS (SDS)

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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SECTIONMA
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MAINTENANCE
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” .................................................................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
DESCRIPTION ............................................................ 5
Pre-Delivery Inspection Items .................................. 5
GENERAL MAINTENANCE ....................................... 7
General Maintenance ............................................... 7
PERIODIC MAINTENANCE ....................................... 8
Periodic Maintenance ............................................... 8
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (YD25DDTI DIESEL ENGINE) ................ 8
CHASSIS AND BODY MAINTENANCE
(YD25DDTI DIESEL ENGINE) .............................. 9
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 10
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (YD25DDTI DIESEL ENGINE) ............... 11
CHASSIS AND BODY MAINTENANCE
(YD25DDTI DIESEL ENGINE) ............................. 11
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 13
RECOMMENDED FLUIDS AND LUBRICANTS ...... 14
Fluids and Lubricants ............................................. 14
SAE Viscosity Number ........................................... 15
DIESEL ENGINE ................................................. 15
GEAR OIL ........................................................... 15
Engine Coolant Mixture Ratio ................................ 16
ENGINE MAINTENANCE ......................................... 17
Checking Drive Belts .............................................. 17
Deflection Adjustment ............................................ 18
POWER STEERING OIL PUMP BELT ............... 18
A/C COMPRESSOR, ALTERNATOR AND
WATER PUMP BELT .......................................... 19
Changing Engine Coolant ...................................... 19
DRAINING ENGINE COOLANT ......................... 19
REFILLING ENGINE COOLANT ........................ 20FLUSHING COOLING SYSTEM ......................... 21
Checking Cooling System ...................................... 21
CHECKING COOLING SYSTEM HOSES ........... 21
CHECKING RADIATOR ...................................... 21
CHECKING RESERVOIR TANK CAP ................. 21
CHECKING RADIATOR SYSTEM FOR LEAKS... 22
Checking Fuel Lines ............................................... 23
Changing Fuel Filter ............................................... 23
REMOVAL ........................................................... 23
INSTALLATION ................................................... 24
INSPECTION AFTER INSTALLATION ................ 24
Draining Water from Fuel Filter .............................. 25
Changing Engine Air Cleaner Filter ........................ 25
DRY PAPER TYPE .............................................. 25
Changing Engine Oil ............................................... 25
Changing Oil Filter .................................................. 26
REMOVAL ........................................................... 26
INSTALLATION ................................................... 26
INSPECTION AFTER INSTALLATION ................ 27
CHASSIS AND BODY MAINTENANCE ................... 28
Checking the Exhaust System ................................ 28
Checking Clutch Fluid Level and Leaks ................. 28
Checking Clutch System ........................................ 28
Checking M/T Oil .................................................... 28
Changing M/T Oil .................................................... 29
Checking A/T Fluid ................................................. 29
Changing A/T Fluid ................................................. 31
Checking Transfer Fluid ......................................... 31
FLUID LEAKAGE AND FLUID LEVEL ................ 31
Changing Transfer Fluid ......................................... 32
DRAINING ........................................................... 32
FILLING ............................................................... 32
Checking Propeller Shaft ........................................ 32
Checking Front Final Drive Oil (Front Differential
Gear Oil) ................................................................. 32
OIL LEAKAGE AND OIL LEVEL ......................... 32
Changing Front Final Drive Oil (Front Differential
Gear Oil) ................................................................. 33
DRAINING ........................................................... 33
FILLING ............................................................... 33

MA-2
Checking Rear Final Drive Oil (Rear Differential
Gear Oil) ................................................................. 33
OIL LEAKAGE AND OIL LEVEL ......................... 33
Changing Rear Final Drive Oil (Rear Differential
Gear Oil) ................................................................. 34
DRAINING ........................................................... 34
FILLING ............................................................... 34
Balancing Wheels ................................................... 34
Tire Rotation ........................................................... 34
Checking Brake Fluid Level and Leaks .................. 35
Checking Brake Lines and Cables ......................... 35
Changing Brake Fluid ............................................. 35
Checking Disc Brake .............................................. 35
ROTOR ................................................................ 35
CALIPER ............................................................. 36
PAD ..................................................................... 36
Checking Drum Brake ............................................ 36
DRUM .................................................................. 36
WHEEL CYLINDER ............................................. 36
LINING ................................................................. 37
Checking Steering Gear and Linkage ..................... 37
STEERING GEAR ............................................... 37
STEERING LINKAGE .......................................... 37
Checking Power Steering Fluid and Lines .............. 37CHECKING FLUID LEVEL .................................. 37
CHECKING LINES ............................................... 37
Checking Axle and Suspension Parts ..................... 38
FRONT AND REAR AXLE AND SUSPENSION
PARTS ................................................................. 38
FRONT DRIVE SHAFT ........................................ 38
Lubricating Locks, Hinges and Hood Latches ......... 39
Checking Seat Belts, Buckles, Retractors, Anchors
and Adjusters .......................................................... 40
Checking Body Corrosion ....................................... 40
HEMMED PANELS .............................................. 40
PANEL JOINT ...................................................... 40
PANEL EDGE ...................................................... 40
PARTS CONTACT ............................................... 40
PROTECTORS .................................................... 40
ANTI-CORROSION MATERIALS ........................ 40
DRAIN HOLES ..................................................... 40
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 41
Standard and Limit .................................................. 41
BELT DEFLECTION ............................................ 41
RESERVOIR TANK ............................................. 41
ENGINE COOLANT CAPACITY (APPROXI-
MATE) .................................................................. 41
ENGINE OIL CAPACITY (APPROXIMATE) ........ 41

PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ELS001HP
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
lTo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
lDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

MA-4
PREPARATION
PREPARATION
PFP:00002
Special Service ToolsELS001HQ
Commercial Service ToolsELS001HR
Tool number
Tool nameDescription
EG17650301
Radiator cap tester adapterAdapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
S-NT564
Tool nameDescription
Fuel filter wrench Removing fuel filter
Radiator cap tester Checking radiator and reservoir tank cap
PBIC0519E
PBIC1982E

DESCRIPTION
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DESCRIPTIONPFP:00000
Pre-Delivery Inspection ItemsELS001K2
Shown below are Pre-delivery Inspection Items required for the new vehicle. It is recommended that
necessary items other than those listed here be added, paying due regard to the conditions in each
country.
Perform applicable items on each model. Consult text of this section for specifications.
Install vehicle protection kit
Fit all accessories ordered (if applicable) (e.g. towbar, audio, navigation, air conditioner, styling kit)
UNDER HOOD — engine off
Check coolant level and cooling system for leaks
Charge battery and check terminals for condition
Check drive belts tension
Check fuel filter for water or dust (diesel only) and fuel system for leaks
Check engine oil level and for oil leaks
Check brake and clutch fluid levels and fluid lines for leaks
Check and top up washer reservoirs
Check power steering fluid level and fluid lines for leaks (if applicable)
Check air conditioning system for gas leaks (if applicable)
ON INSIDE AND OUTSIDE
Install transit fuse if removed for vehicle storage
Check instruments, gauges, lamps, horn and accessories for operation
Check wipers and washers for operation and adjustment
Check interior and door mirrors and sun visors for operation
Set radio code and set clock
Check parking brake adjustment
Check clutch pedal adjustment
Check steering lock operation
Check seat adjusters and seat belts for operation
Check all windows for operation and alignment
Check mouldings, trim and fittings for fit and alignment
Check weatherstrips for fit and adhesion
Check hood, trunk lid, door panels and fuel lid for fit and alignment
Check latches, keys, remote key, door locks and remote trunk lid and fuel lid release for operation
Check wheel nut torques
Check tyre pressure (incl. spare tyre)
Check tool kit and jack for operation
Check automatic transmission/transaxle starter inhibitor (if applicable)
Check sunroof for operation and alignment (if applicable)
UNDER BODY
Check manual transmission/transaxle, differential and transfer box for oil level and oil leaks
Tighten bolts and nuts steering linkage and gear box, axle/suspension parts, propeller and exhaust system
Check brake and clutch lines, and oil/fluid reservoirs for leaks
Remove front suspension spacer blocks (if applicable)
Check body mounting torque (if applicable)