Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Maxima 2000-2005 Approved Nissan Maxima 2000 em
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ENGINE MECHANICAL
SECTION EM
CONTENTS
PRECAUTIONS ...............................................................3 VALVE SEATS .........................................................43
Parts Requiring Angular Tightening.............................3 REPLACING VALVE SEAT FOR SERVICE PARTS ....44
Liquid Gasket Application Procedure ..........................3 VALVE DIMENSIONS ...............................................44
PREPARATION ...............................................................4 VALVE SPRING .......................................................45
VALVE LIFTER ........................................................45
Special Service Tools ..................................................4
Assembly ...................................................................46
Commercial Service Tools ...........................................6
Installation..................................................................46
OUTER COMPONENT PARTS .......................................8
Valve Clearance.........................................................51
Removal and Installation .............................................8
CHECKING .............................................................51
TIGHTENING PROCEDURES ...................................10
ADJUSTING ............................................................53
MEASUREMENT OF COMPRESSION PRESSURE ....11
ENGINE ASSEMBLY.....................................................56
OIL PAN.........................................................................12
Removal and Installation ...........................................56
Components...............................................................12
REMOVAL ...............................................................57
Removal.....................................................................12
INSTALLATION........................................................58
Installation..................................................................15 CYLINDER BLOCK .......................................................59
TIMING CHAIN ..............................................................18 Components...............................................................59
Components...............................................................18 Removal and Installation ...........................................60
POSITION FOR APPLYING LIQUID GASKET ............19
Disassembly...............................................................60
Removal.....................................................................21
PISTON AND CRANKSHAFT ....................................60
Inspection...................................................................29 Inspection...................................................................60
Installation..................................................................29 PISTON AND PISTON PIN CLEARANCE ..................60
OIL SEAL.......................................................................34 PISTON RING SIDE CLEARANCE ............................61
Replacement..............................................................34 PISTON RING END GAP..........................................61
VALVE OIL SEAL .....................................................34 CONNECTING ROD BEND AND TORSION ...............62
OIL SEAL INSTALLATION DIRECTION .....................35 CYLINDER BLOCK DISTORTION AND WEAR ...........62
FRONT OIL SEAL ....................................................35 PISTON-TO-BORE CLEARANCE ..............................63
REAR OIL SEAL ......................................................36 CRANKSHAFT.........................................................64
CYLINDER HEAD..........................................................37 BEARING CLEARANCE ...........................................65
Components...............................................................37 CONNECTING ROD BUSHING CLEARANCE
Removal.....................................................................38 (SMALL END) ..........................................................67
Disassembly...............................................................38 REPLACEMENT OF CONNECTING ROD
Inspection...................................................................40 BUSHING (SMALL END) ..........................................68
CYLINDER HEAD DISTORTION ...............................40 FLYWHEEL/DRIVE PLATE RUNOUT ........................68
CAMSHAFT VISUAL CHECK ....................................40 Assembly ...................................................................68
CAMSHAFT RUNOUT ..............................................40 PISTON ..................................................................68
CAMSHAFT CAM HEIGHT .......................................41 CRANKSHAFT.........................................................69
CAMSHAFT JOURNAL CLEARANCE ........................41 REPLACEMENT OF PILOT BUSHING (M/T) OR
CAMSHAFT END PLAY............................................42 PILOT CONVERTER (A/T)........................................71
CAMSHAFT SPROCKET RUNOUT ...........................42 SERVICE DATA AND SPECIFICATIONS (SDS) .........72
VALVE GUIDE CLEARANCE ....................................42 General Specifications...............................................72
VALVE GUIDE REPLACEMENT ................................42 Compression Pressure ..............................................72
CONTENTS (Cont'd)
Cylinder Head ............................................................72 AVAILABLE PISTON ................................................82
Valve ..........................................................................73 PISTON RING .........................................................82
VALVE ....................................................................73 PISTON PIN ............................................................82
VALVE CLEARANCE................................................73 Connecting Rod .........................................................83
AVAILABLE SHIMS ..................................................74 Crankshaft..................................................................83
VALVE SPRING .......................................................76 Available Main Bearing..............................................85
VALVE LIFTER ........................................................76 UNDERSIZE ............................................................85
VALVE GUIDE .........................................................77 Available Connecting Rod Bearing............................86
Valve Seat..................................................................78 CONNECTING ROD BEARING .................................86
VQ20DE ..................................................................78 UNDERSIZE ............................................................86
VQ30DE ..................................................................78 Miscellaneous Components.......................................86
Camshaft and Camshaft Bearing ..............................79 BEARING CLEARANCE ...........................................86
Cylinder Block............................................................80
Piston, Piston Ring and Piston Pin ...........................82
EM-2
PRECAUTIONS
Parts Requiring Angular Tightening
Parts Requiring Angular Tightening NFEM0001
+ Use an angle wrench for the final tightening of the following
engine parts:
a) Cylinder head bolts
b) Main bearing cap bolts
c) Connecting rod cap nuts
d) Crankshaft pulley bolt
+ Do not use a torque value for final tightening.
+ The torque value for these parts are for a preliminary step.
+ Ensure thread and seat surfaces are clean and coated with
engine oil.
Liquid Gasket Application Procedure NFEM0002
1. Use a scraper to remove all traces of old liquid gasket
from mating surfaces and grooves. Also, completely clean
any oil from these areas.
2. Apply a continuous bead of liquid gasket to mating sur-
faces. (Use Genuine Liquid Gasket or equivalent.)
+ Be sure liquid gasket diameter is as specified.
SEM164F
3. Apply liquid gasket around the inner side of bolt holes
(unless otherwise specified).
4. Assembly should be done within 5 minutes after coating.
5. Wait at least 30 minutes before refilling engine oil and
engine coolant.
AEM080
EM-3
PREPARATION
Special Service Tools
Special Service Tools NFEM0003
Tool number
Description
Tool name
ST0501S000 Disassembling and assembling
Engine stand assembly
1 ST05011000
Engine stand
2 ST05012000
Base
NT042
KV10106500
Engine stand shaft
NT028
KV10117000 KV10117000 has been replaced with
Engine sub-attachment KV10117001 (KV10117000 is no longer in
production, but it is usable).
NT373
KV10117001 Installing on the cylinder block
Engine sub-attachment
NT372
ST10120000 Loosening and tightening cylinder head bolt
Cylinder head bolt a: 13 (0.51) dia.
wrench b: 12 (0.47)
c: 10 (0.39)
Unit: mm (in)
NT583
KV10116200 Disassembling valve mechanism
Valve spring compres-
sor
1 KV10115900
Attachment
NT022
EM-4
PREPARATION
Special Service Tools (Cont'd)
Tool number
Description
Tool name
KV10115600 Installing valve oil seal
Valve oil seal drift Use side A.
Side A
a: 20 (0.79) dia.
b: 13 (0.51) dia.
c: 10.3 (0.406) dia.
d: 8 (0.31) dia.
e: 10.7 (0.421)
NT603 f: 5 (0.20)
Unit: mm (in)
KV101151S0 Changing shims
Lifter stopper set
1 KV10115110
Camshaft pliers
2 KV10115120
Lifter stopper
NT041
EM03470000 Installing piston assembly into cylinder bore
Piston ring compressor
NT044
ST16610001 Removing crankshaft pilot bushing
Pilot bushing puller
NT045
KV10111100 Removing steel oil pan and rear timing chain
Seal cutter case
NT046
WS39930000 Pressing the tube of liquid gasket
Tube presser
NT052
KV10112100 Tightening bolts for bearing cap, cylinder
Angle wrench head, etc.
NT014
EM-5
PREPARATION
Special Service Tools (Cont'd)
Tool number
Description
Tool name
KV10115800 Removing oil filter
KV10115801
(Kent-Moore Europe
make)
Oil filter wrench
NT362
Commercial Service Tools NFEM0004
Tool number
Description
Tool name
Spark plug wrench Removing and installing spark plug
NT047
Valve seat cutter set Finishing valve seat dimensions
NT048
Piston ring expander Removing and installing piston ring
NT030
Valve guide drift Removing and installing valve guide
Intake & Exhaust:
a = 9.5 mm (0.374 in) dia.
b = 5.5 mm (0.217 in) dia.
NT015
Valve guide reamer Reaming valve guide 1 or hole for oversize valve
guide 2
Intake & Exhaust:
d1 = 6.0 mm (0.236 in) dia.
d2 = 10.2 mm (0.402 in) dia.
NT016
Oxygen sensor thread Reconditioning the exhaust system threads before
cleaner installing a new oxygen sensor (Use with anti-seize
lubricant shown below.)
a = [18 mm dia. and pitch of 1.5 mm] for zirco-
nia oxygen sensor
b = [12 mm dia. and pitch of 1.25 mm] for tita-
nia oxygen sensor
AEM488
EM-6
PREPARATION
Commercial Service Tools (Cont'd)
Tool number
Description
Tool name
Anti-seize lubricant Lubricating oxygen sensor thread cleaning tool
(Permatex 133AR or when reconditioning exhaust system threads
equivalent meeting MIL
specification MIL-A-
907)
AEM489
EM-7
OUTER COMPONENT PARTS
Removal and Installation
Removal and Installation NFEM0006
SEM524G
1. Intake manifold collector support 5. Fuel tube assembly 9. Intake manifold
2. Intake manifold collector 6. Fuel pressure regulator 10. Throttle body
3. Fuel damper and fuel feed hose 7. Ignition coil with power transistor 11. IACV-AAC valve
assembly 8. Ornament engine cover 12. EVAP canister purge volume con-
4. Injector trol solenoid valve
EM-8
OUTER COMPONENT PARTS
Removal and Installation (Cont'd)
SEM525G
1. EGR valve 4. Thermostat with water inlet 8. Water control valve
2. EGR temperature sensor 5. Exhaust manifold 9. Water connector
3. Camshaft position sensor 6. Water outlet 10. Cylinder block water outlet
(PHASE) 7. EGR guide tube
EM-9
OUTER COMPONENT PARTS
Removal and Installation (Cont'd)
TIGHTENING PROCEDURES NFEM0006S01
Intake Manifold NFEM0006S0101
+ Tighten in numerical order shown in the figure.
1. Tighten all bolts and nuts to 5 to 10 N◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo