Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Titan 2004-2009 Approved Nissan Titan 2006 EM
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B ENGINE
A
SECTION
ENGINE MECHANICAL
EM EM
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3 . INSTALLATION .................................................. 15 . F
Precautions for Supplemental Restraint System Removal and Installation (Viscous paper type) ..... 16 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL .......................................................... 16 .
SIONER" ................................................................. 3
. INSTALLATION .................................................. 16 . G
Precautions for Drain Engine Coolant ..................... 3 . INTAKE MANIFOLD ................................................ 17 .
Precautions for Disconnecting Fuel Piping ............. 3 . Removal and Installation ....................................... 17 .
Precautions for Removal and Disassembly ............ 3 . REMOVAL .......................................................... 17 .
H
Precautions for Inspection, Repair and Replace- INSTALLATION .................................................. 19 .
ment ........................................................................ 3
. INSPECTION AFTER INSTALLATION ............... 20 .
Precautions for Assembly and Installation .............. 3 . EXHAUST MANIFOLD AND THREE WAY CATA-
Parts Requiring Angular Tightening ........................ 4 . LYST ......................................................................... 21
. I
Precautions for Liquid Gasket ................................. 4 . Removal and Installation ....................................... 21 .
REMOVAL OF LIQUID GASKET SEALING ......... 4 . REMOVAL .......................................................... 21 .
LIQUID GASKET APPLICATION PROCEDURE 4 ..... INSPECTION AFTER REMOVAL ...................... 22 . J
PREPARATION .......................................................... 6 . INSTALLATION .................................................. 22 .
Special Service Tools .............................................. 6 . OIL PAN AND OIL STRAINER ................................ 24 .
Commercial Service Tools ....................................... 8 . Removal and Installation ....................................... 24 .
K
NOISE, VIBRATION, AND HARSHNESS (NVH) REMOVAL .......................................................... 24 .
TROUBLESHOOTING ............................................. 10 . INSPECTION AFTER REMOVAL ...................... 25 .
NVH Troubleshooting --Engine Noise .................. 10 . INSTALLATION .................................................. 26 .
Use the Chart Below to Help You Find the Cause INSPECTION AFTER INSTALLATION ............... 27 . L
of the Symptom. .....................................................11 . IGNITION COIL ........................................................ 28 .
ENGINE ROOM COVER ......................................... 12 . Removal and Installation ....................................... 28 .
Removal and Installation ....................................... 12 . REMOVAL .......................................................... 28 . M
REMOVAL .......................................................... 12 . INSTALLATION .................................................. 28 .
INSTALLATION .................................................. 12 . SPARK PLUG (PLATINUM-TIPPED TYPE) ............ 29 .
DRIVE BELTS .......................................................... 13. Removal and Installation ....................................... 29 .
Checking Drive Belts ............................................. 13 . REMOVAL .......................................................... 29 .
DRIVE BELT TENSION ..................................... 13 . INSPECTION AFTER REMOVAL ...................... 29 .
Removal and Installation ....................................... 13 . INSTALLATION .................................................. 30 .
REMOVAL .......................................................... 13 . FUEL INJECTOR AND FUEL TUBE ....................... 31 .
INSTALLATION .................................................. 14 . Removal and Installation ....................................... 31 .
Drive Belt Auto Tensioner and Idler Pulley ............ 14 . REMOVAL .......................................................... 31 .
REMOVAL .......................................................... 14 . INSTALLATION .................................................. 32 .
INSTALLATION .................................................. 14 . INSPECTION AFTER INSTALLATION ............... 33 .
AIR CLEANER AND AIR DUCT .............................. 15 . ROCKER COVER .................................................... 35 .
Removal and Installation ....................................... 15 . Removal and Installation ....................................... 35 .
REMOVAL .......................................................... 15 . REMOVAL .......................................................... 35 .
INSTALLATION .................................................. 36 .
Revision: October 2006 EM-1 2006 Titan
TIMING CHAIN ......................................................... 37
. CYLINDER BLOCK ..................................................78 .
Removal and Installation ....................................... 37 . Disassembly and Assembly ...................................78 .
REMOVAL .......................................................... 38
. DISASSEMBLY ...................................................79 .
INSPECTION AFTER REMOVAL ....................... 40 . ASSEMBLY .........................................................82 .
INSTALLATION ................................................... 41. How to Select Piston and Bearing .........................87 .
CAMSHAFT .............................................................. 46
. DESCRIPTION ...................................................87 .
Removal and Installation ....................................... 46 . HOW TO SELECT PISTON ................................87 .
REMOVAL .......................................................... 46
. HOW TO SELECT CONNECTING ROD BEAR-
INSPECTION AFTER REMOVAL ....................... 49 . ING ......................................................................88
.
INSTALLATION ................................................... 51. HOW TO SELECT MAIN BEARING ...................90 .
Valve Clearance ..................................................... 55
. Inspection After Disassembly .................................94 .
INSPECTION ...................................................... 55
. CRANKSHAFT END PLAY .................................94 .
ADJUSTMENT ................................................... 58 . CONNECTING ROD SIDE CLEARANCE ..........94 .
OIL SEAL ................................................................. 60
. PISTON AND PISTON PIN CLEARANCE ..........94 .
Removal and Installation of Valve Oil Seal ............ 60 . PISTON RING SIDE CLEARANCE ....................95 .
REMOVAL .......................................................... 60
. PISTON RING END GAP ...................................95 .
INSTALLATION ................................................... 60. CONNECTING ROD BEND AND TORSION ......96 .
Removal and Installation of Front Oil Seal ............ 61 . CONNECTING ROD BEARING (BIG END) .......96 .
REMOVAL .......................................................... 61
. CONNECTING ROD BUSHING OIL CLEAR-
INSTALLATION ................................................... 61. ANCE (SMALL END) ..........................................96 .
Removal and Installation of Rear Oil Seal ............. 61 . CYLINDER BLOCK DISTORTION .....................97 .
REMOVAL .......................................................... 61
. MAIN BEARING HOUSING INSIDE DIAMETER...98
INSTALLATION ................................................... 62. PISTON TO CYLINDER BORE CLEARANCE ...98
CYLINDER HEAD .................................................... 63 . CRANKSHAFT JOURNAL DIAMETER ..............99 .
On-Vehicle Service ................................................ 63
. CRANKSHAFT PIN DIAMETER ....................... 100 .
CHECKING COMPRESSION PRESSURE ........ 63 . OUT-OF-ROUND AND TAPER OF CRANK-
Removal and Installation ....................................... 64 . SHAFT .............................................................. 100
.
REMOVAL .......................................................... 64
. CRANKSHAFT RUNOUT ................................. 100 .
INSPECTION AFTER REMOVAL ....................... 65 . CONNECTING ROD BEARING OIL CLEAR-
INSTALLATION ................................................... 65. ANCE ................................................................ 100
.
Disassembly and Assembly ................................... 66 . MAIN BEARING OIL CLEARANCE .................. 101 .
DISASSEMBLY .................................................. 66 . CRUSH HEIGHT OF MAIN BEARING ............. 102 .
ASSEMBLY ........................................................ 67
. CRUSH HEIGHT OF CONNECTING ROD
Inspection After Disassembly ................................ 68 . BEARING .......................................................... 102 .
CYLINDER HEAD DISTORTION ....................... 68 . MAIN BEARING CAP BOLT DIAMETER .......... 102 .
VALVE DIMENSIONS ......................................... 69 . CONNECTING ROD BOLT DIAMETER ........... 103 .
VALVE GUIDE CLEARANCE ............................. 69 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 104 .
VALVE GUIDE REPLACEMENT ........................ 70 . Standard and Limit ............................................... 104 .
VALVE SEAT CONTACT .................................... 71 . GENERAL SPECIFICATIONS .......................... 104 .
VALVE SEAT REPLACEMENT .......................... 71 . DRIVE BELTS ................................................... 104 .
VALVE SPRING SQUARENESS ........................ 73 . EXHAUST MANIFOLD ..................................... 104 .
VALVE SPRING DIMENSIONS AND VALVE CAMSHAFT AND CAMSHAFT BEARING ........ 105 .
SPRING PRESSURE LOAD .............................. 73 . CYLINDER HEAD ............................................. 107 .
ENGINE ASSEMBLY ............................................... 74 . CYLINDER BLOCK ........................................... 109 .
Removal and Installation ....................................... 74 . PISTON, PISTON RING AND PISTON PIN ..... 110 .
REMOVAL .......................................................... 74
. CONNECTING ROD ......................................... 111 .
INSTALLATION ................................................... 76. CRANKSHAFT .................................................. 112 .
INSPECTION AFTER INSTALLATION ............... 76 . MAIN BEARING ................................................ 114 .
Revision: October 2006 EM-2 2006 Titan
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EBS00RIG
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along EM
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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front C
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING: D
G To 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. E
G Improper 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. F
G Do 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.
G
Precautions for Drain Engine Coolant EBS00RIH
Drain engine coolant when engine is cooled.
H
Precautions for Disconnecting Fuel Piping EBS00RII
G Before starting work, make sure no fire or spark producing items are in the work area.
G Release fuel pressure before disconnecting and disassembly. I
G After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and Disassembly EBS00RIJ J
G When instructed to use special service tools, use the specified tools. Always be careful to work safely,
avoid forceful or uninstructed operations.
G Exercise maximum care to avoid damage to mating or sliding surfaces. K
G Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.
G Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
L
G When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be
used where noted in the step.
M
Precautions for Inspection, Repair and Replacement EBS00RIK
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and Installation EBS00RIL
G Use torque wrench to tighten bolts or nuts to specification.
G When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is speci-
fied, do exactly as specified.
G Replace with new gasket, packing, oil seal or O-ring.
G Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
any restriction and blockage.
G Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
G Release air within route when refilling after draining engine coolant.
Revision: October 2006 EM-3 2006 Titan
PRECAUTIONS
G Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine
stopped). Then make sure that there are no leaks at fuel line connections.
G After repairing, start engine and increase engine speed to check engine coolant, fuel, oil, and exhaust
systems for leakage.
Parts Requiring Angular Tightening EBS00RIM
G For final tightening of the following engine parts use Tool:
Tool number : KV10112100 (BT-8653-A)
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