Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Pathfinder 1999-2003 Approved Nissan Pathfinder 2003 em
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GI
ENGINE MECHANICAL
MA
SECTION EM LC
EC
FE
CONTENTS CL
PRECAUTIONS ...............................................................3 CAMSHAFT SPROCKET RUNOUT ...........................46
VALVE GUIDE CLEARANCE ....................................46
MT
Parts Requiring Angular Tightening.............................3
Liquid Gasket Application Procedure ..........................3 VALVE GUIDE REPLACEMENT ................................47
VALVE SEATS .........................................................47
PREPARATION ...............................................................4
REPLACING VALVE SEAT FOR SERVICE PARTS ....48
AT
Special Service Tools ..................................................4
VALVE DIMENSIONS ...............................................48
Commercial Service Tools ...........................................6
VALVE SPRING .......................................................49
NOISE, VIBRATION AND HARSHNESS (NVH) TF
VALVE LIFTER ........................................................49
TROUBLESHOOTING .....................................................8 Assembly ...................................................................50
NVH Troubleshooting - Engine Noise .........................9
OUTER COMPONENT PARTS .....................................10
Installation..................................................................50 PD
Valve Clearance.........................................................54
Removal and Installation ...........................................10 CHECKING .............................................................54
TIGHTENING PROCEDURES ...................................12 ADJUSTING ............................................................57 AX
MEASUREMENT OF COMPRESSION PRESSURE ....14 ENGINE ASSEMBLY.....................................................59
OIL PAN.........................................................................16 Removal and Installation ...........................................59
Components...............................................................16 REMOVAL ...............................................................60 SU
Removal.....................................................................16 INSTALLATION........................................................62
Installation..................................................................19 CYLINDER BLOCK .......................................................63
TIMING CHAIN ..............................................................21 Components...............................................................63 BR
Components...............................................................21 CYLINDER BLOCK HEATER ....................................64
POSITION FOR APPLYING LIQUID GASKET ............22 Removal and Installation ...........................................64
Removal.....................................................................24
ST
Disassembly...............................................................64
Inspection...................................................................31 PISTON, CRANKSHAFT AND OIL JET ......................64
Installation..................................................................31 Inspection...................................................................65 RS
OIL SEAL.......................................................................39 PISTON AND PISTON PIN CLEARANCE ..................65
Replacement..............................................................39 PISTON RING SIDE CLEARANCE ............................66
VALVE OIL SEAL .....................................................39 PISTON RING END GAP..........................................66 BT
OIL SEAL INSTALLATION DIRECTION .....................40 CONNECTING ROD BEND AND TORSION ...............67
FRONT OIL SEAL ....................................................40 CYLINDER BLOCK DISTORTION AND WEAR ...........67
REAR OIL SEAL ......................................................40 PISTON-TO-BORE CLEARANCE ..............................68 HA
CYLINDER HEAD..........................................................41 CRANKSHAFT.........................................................69
Components...............................................................41 BEARING CLEARANCE ...........................................69
Removal.....................................................................42 CONNECTING ROD BUSHING CLEARANCE SC
(SMALL END) ..........................................................72
Disassembly...............................................................44
FLYWHEEL/DRIVE PLATE RUNOUT ........................73
Inspection...................................................................44 EL
Assembly ...................................................................73
CYLINDER HEAD DISTORTION ...............................44
PISTON ..................................................................73
CAMSHAFT VISUAL CHECK ....................................45
OIL JET ..................................................................74
CAMSHAFT RUNOUT ..............................................45 IDX
CRANKSHAFT.........................................................74
CAMSHAFT CAM HEIGHT .......................................45
KNOCK SENSOR ....................................................76
CAMSHAFT JOURNAL CLEARANCE ........................45
CAMSHAFT END PLAY............................................46
CONTENTS (Cont'd)
REPLACEMENT OF PILOT BUSHING (M/T) OR Cylinder Block............................................................83
PILOT CONVERTER (A/T)........................................77 Piston, Piston Ring and Piston Pin ...........................84
FLYWHEEL/DRIVE PLATE .......................................77 AVAILABLE PISTON ................................................84
SERVICE DATA AND SPECIFICATIONS (SDS) .........78 PISTON RING .........................................................85
General Specifications...............................................78 PISTON PIN ............................................................85
Compression Pressure ..............................................78 Connecting Rod .........................................................85
Cylinder Head ............................................................78 Crankshaft..................................................................86
Valve ..........................................................................79 Available Main Bearing..............................................87
VALVE ....................................................................79 UNDERSIZE ............................................................87
VALVE CLEARANCE................................................79 Available Connecting Rod Bearing............................88
VALVE SPRING .......................................................79 CONNECTING ROD BEARING .................................88
VALVE LIFTER ........................................................79 UNDERSIZE ............................................................88
AVAILABLE LIFTERS (SHIMLESS TYPE) ..................80 Miscellaneous Components.......................................88
VALVE GUIDE .........................................................81 BEARING CLEARANCE ...........................................88
Valve Seat..................................................................81
Camshaft and Camshaft Bearing ..............................82
EM-2
PRECAUTIONS
Parts Requiring Angular Tightening
Parts Requiring Angular Tightening NAEM0001
GI
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