2005 NISSAN X-TRAIL spring

GI-42
TIGHTENING TORQUE OF STANDARD BOLTS

NEW STANDARD BASED ON ISO
CAUTION:
1. Use tightening torque with lubricant for the new standard bolts/nuts in principle. Friction coeffi-
cient stabilizer is applied to the new standard bolts/nuts.
2. However, use tightening torque without lubricant for the following cases. Friction coefficient stabi-
lizer is not applied to the following bolts/nuts.
–Grade 4.8, M6 size bolt, Conical spring washer installed
–Paint removing nut (Size M6 and M8) for fixing with weld bolt
Grade
(Strength
grade)Bolt
sizeBolt
diame-
ter
mmHexagonal
width
across flats
mmPitch
mmTightening torque
Hexagon head bolt Hexagon flange bolt
N·m kg-m ft-lb in-lb N·m kg-m ft-lb in-lb
4.8
(Without
lubricant)M6 6.0 10 1.0 5.5 0.56 4 49 7 0.71 5 62
M8 8.0 131.25 13.5 1.4 10 — 17 1.7 13 —
1.0 13.5 1.4 10 — 17 1.7 13 —
M10 10.0 161.5 28 2.9 21 — 35 3.6 26 —
1.25 28 2.9 21 — 35 3.6 26 —
M12 12.0 181.75 45 4.6 33 — 55 5.6 41 —
1.25 45 4.6 33 — 65 6.6 48 —
M14 14.0 21 1.5 80 8.2 59 — 100 10 74 —
4.8
(With
lubricant)M6 6.0 10 1.0 4 0.41 3 35 5.5 0.56 4 49
M8 8.0 131.25 11 1.1 8 — 13.5 1.4 10 —
1.0 11 1.1 8 — 13.5 1.4 10 —
M10 10.0 161.5 22 2.2 16 — 28 2.9 21 —
1.25 22 2.2 16 — 28 2.9 21 —
M12 12.0 181.75 35 3.6 26 — 45 4.6 33 —
1.25 35 3.6 26 — 45 4.6 33 —
M14 14.0 21 1.5 65 6.6 48 — 80 8.2 59 —
8.8
(With
lubricant)M6 6.0 10 1.0 8 0.82 6 71 10 1.0 7 89
M8 8.0 131.25 21 2.1 15 — 25 2.6 18 —
1.0 21 2.1 15 — 25 2.6 18 —
M10 10.0 161.5 40 4.1 30 — 50 5.1 37 —
1.25 40 4.1 30 — 50 5.1 37 —
M12 12.0 181.75 70 7.1 52 — 85 8.7 63 —
1.25 70 7.1 52 — 85 8.7 63 —
M14 14.0 21 1.5 120 12 89 — 140 14 103 —
10.9
(With
lubricant)M6 6.0 10 1.0 10 1.0 7 89 12 1.2 9 106
M8 8.0 131.25 27 2.8 20 — 32 3.3 24 —
1.0 27 2.8 20 — 32 3.3 24 —
M10 10.0 161.5 55 5.6 41 — 62 6.3 46 —
1.25 55 5.6 41 — 62 6.3 46 —
M12 12.0 181.75 95 9.7 70 — 105 11 77 —
1.25 95 9.7 70 — 105 11 77 —
M14 14.0 21 1.5 160 16 118 — 180 18 133 —

EM-2 ROCKER COVER ..................................................... 44
Removal and Installation ........................................ 44
REMOVAL ........................................................... 44
INSTALLATION .................................................... 45
TIMING CHAIN .......................................................... 46
Removal and Installation ........................................ 46
REMOVAL ........................................................... 46
INSPECTION AFTER REMOVAL ........................ 50
INSTALLATION .................................................... 51
INSPECTION AFTER INSTALLATION ................ 55
CAMSHAFT ............................................................... 56
Removal and Installation ........................................ 56
REMOVAL ........................................................... 56
INSPECTION AFTER REMOVAL ........................ 58
INSTALLATION .................................................... 61
Valve Clearance ...................................................... 64
INSPECTION ....................................................... 64
ADJUSTMENT .................................................... 65
OIL SEAL .................................................................. 67
Removal and Installation of Valve Oil Seal ............. 67
REMOVAL ........................................................... 67
INSTALLATION .................................................... 67
Removal and Installation of Front Oil Seal ............. 67
REMOVAL ........................................................... 67
INSTALLATION .................................................... 68
Removal and Installation of Rear Oil Seal .............. 68
REMOVAL ........................................................... 68
INSTALLATION .................................................... 68
CYLINDER HEAD ..................................................... 70
On-Vehicle Service ................................................. 70
CHECKING COMPRESSION PRESSURE ......... 70
Removal and Installation ........................................ 71
REMOVAL ........................................................... 71
INSPECTION AFTER REMOVAL ........................ 72
INSTALLATION .................................................... 73
INSPECTION AFTER INSTALLATION ................ 73
Disassembly and Assembly .................................... 74
DISASSEMBLY ................................................... 74
ASSEMBLY ......................................................... 75
Inspection After Disassembly ................................. 77
VALVE DIMENSIONS .......................................... 77
VALVE GUIDE CLEARANCE .............................. 77
VALVE GUIDE REPLACEMENT ......................... 77
VALVE SEAT CONTACT ..................................... 79
VALVE SEAT REPLACEMENT ........................... 79
VALVE SPRING SQUARENESS ......................... 80
VALVE SPRING DIMENSIONS AND VALVE
SPRING PRESSURE LOAD ............................... 80
ENGINE ASSEMBLY ................................................ 81
Removal and Installation (2WD Models) ................ 81
REMOVAL ........................................................... 82
INSTALLATION .................................................... 83
INSPECTION AFTER INSTALLATION ................ 84
Removal and Installation (4WD Models) ................ 85
REMOVAL ........................................................... 85
INSTALLATION .................................................... 88
INSPECTION AFTER INSTALLATION ................ 88CYLINDER BLOCK ................................................... 89
Disassembly and Assembly .................................... 89
DISASSEMBLY .................................................... 90
ASSEMBLY .......................................................... 94
How to Select Piston and Bearing .......................... 99
DESCRIPTION .................................................... 99
HOW TO SELECT PISTON ...............................100
HOW TO SELECT CONNECTING ROD BEAR-
ING .....................................................................100
HOW TO SELECT MAIN BEARING ..................102
Inspection After Disassembly ................................107
CRANKSHAFT END PLAY ................................107
CONNECTING ROD SIDE CLEARANCE .........107
PISTON TO PISTON PIN OIL CLEARANCE .....107
PISTON RING SIDE CLEARANCE ...................108
PISTON RING END GAP ..................................108
CONNECTING ROD BEND AND TORSION .....109
CONNECTING ROD BIG END DIAMETER ......109
CONNECTING ROD BUSHING OIL CLEAR-
ANCE .................................................................109
CYLINDER BLOCK DISTORTION ....................110
MAIN BEARING HOUSING INNER DIAMETER . 111
PISTON TO CYLINDER BORE CLEARANCE .. 111
CRANKSHAFT MAIN JOURNAL DIAMETER ...112
CRANKSHAFT PIN JOURNAL DIAMETER ......113
OUT-OF-ROUND AND TAPER OF CRANK-
SHAFT ...............................................................113
CRANKSHAFT RUNOUT ..................................113
CONNECTING ROD BEARING OIL CLEAR-
ANCE .................................................................113
MAIN BEARING OIL CLEARANCE ...................114
MAIN BEARING CRUSH HEIGHT ....................115
CONNECTING ROD BEARING CRUSH
HEIGHT .............................................................115
LOWER CYLINDER BLOCK MOUNTING BOLT
OUTER DIAMETER ...........................................115
CONNECTING ROD BOLT OUTER DIAMETER .115
FLYWHEEL DEFLECTION (M/T MODELS) ......116
MOVEMENT AMOUNT OF FLYWHEEL (M/T
MODELS) ...........................................................116
SERVICE DATA AND SPECIFICATIONS (SDS) ....117
Standard and Limit ................................................117
GENERAL SPECIFICATIONS ...........................117
DRIVE BELT ......................................................117
INTAKE MANIFOLD AND EXHAUST MANI-
FOLD .................................................................117
SPARK PLUG ....................................................117
CYLINDER HEAD ..............................................117
VALVE ................................................................118
CAMSHAFT AND CAMSHAFT BEARING .........121
CYLINDER BLOCK ............................................122
PISTON, PISTON RING AND PISTON PIN ......123
CONNECTING ROD ..........................................124
CRANKSHAFT ...................................................124
MAIN BEARING .................................................126
CONNECTING ROD BEARING .........................127
Tightening Torque .................................................127

PREPARATION
EM-7
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PREPARATIONPFP:00002
Special Service ToolsEBS00L7N
Tool number
Tool nameDescription
KV10111100
Seal cutterRemoving oil pan and timing chain case
ST0501S000
Engine stand assembly
1. ST05011000
Engine stand
2. ST05012000
BaseDisassembling and assembling
KV10106500
Engine stand shaft
KV10115300
Engine sub-attachment
KV10116200
Valve spring compressor
1. KV10115900
Attachment
2. KV10109220
AdapterDisassembling and assembling valve
mechanism
Part (1) is a component of KV10116200, but
Part (2) is not so.
KV10112100
Angle wrenchTightening bolts for bearing cap, cylinder
head, etc.
KV10117100
Heated oxygen sensor wrenchLoosening or tightening heated oxygen
sensors with 22 mm (0.87 in) hexagon nut
S-NT046
NT042
NT028
ZZA1078D
PBIC1650E
S-NT014
NT379

EM-46
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TIMING CHAIN

TIMING CHAINPFP:13028
Removal and InstallationEBS00KNL
REMOVAL
1. Remove the following parts.
1. O-ring 2. Camshaft sprocket (INT) 3. Camshaft sprocket (EXH)
4. Chain tensioner 5. Spring 6. Chain tensioner plunger
7. Timing chain slack guide 8. Timing chain 9. Front cover
10. Chain guide 11.Intake valve timing control solenoid
valve12. Intake valve timing control cover
13. RH engine mounting bracket 14. Crankshaft pulley bolt 15. Crankshaft pulley
16. Front oil seal 17. Balancer unit timing chain tensioner 18. Oil pump drive spacer
19. Crankshaft sprocket 20. Timing chain tension guide 21. Balancer unit timing chain
22. Balancer unit 23. Oil ring
PBIC2181E

EM-56
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CAMSHAFT

CAMSHAFTPFP:13001
Removal and InstallationEBS00LS2
NOTE:
This section describes removal/installation procedure of camshaft without removing front cover. If front cover
is removed or installed, removal of camshaft bracket (No. 1) is easier before step 8 and installation is easier
after step 3. Regarding removal and installation of front cover, refer to EM-46, "
TIMING CHAIN" .
REMOVAL
1. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-562,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
2. Remove the following parts.

Ignition coil; Refer to EM-31, "IGNITION COIL" .

Rocker cover; Refer to EM-44, "ROCKER COVER" .
3. Remove power steering reservoir tank from bracket to move power steering piping. Refer to PS-37,
"HYDRAULIC LINE" .
1. Camshaft bracket (No. 2 to 5) 2. Seal washer 3. Camshaft bracket (No. 1)
4. Front cover 5. Chain guide 6. Chain tensioner
7. Spring 8. Chain tensioner plunger 9. O-ring
10. Oil ring 11. O-ring 12.Intake valve timing control solenoid
valve
13. Intake valve timing control cover 14. Camshaft sprocket (INT) 15. Camshaft sprocket (EXH)
16. O-ring 17. Valve lifter 18. Camshaft (INT)
19. Camshaft (EXH) 20. O-ring 21. Camshaft position sensor (PHASE)
PBIC2184E

OIL SEAL
EM-67
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OIL SEALPFP:12279
Removal and Installation of Valve Oil SealEBS00KNM
REMOVAL
1. Remove camshafts. Refer to EM-56, "CAMSHAFT" .
2. Remove valve lifters. Refer to EM-56, "
CAMSHAFT" .
3. Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve
from dropping into cylinder.
CAUTION:
When rotating crankshaft, be careful to avoid scarring front cover with timing chain.
4. Remove valve collet.

Compress valve spring with valve spring compressor, attach-
ment and adapter (special service tool). Remove valve collet
with a magnet hand.
CAUTION:
When working, be careful not to damage valve lifter holes.
5. Remove valve spring retainer and valve spring.
CAUTION:
Do not remove valve spring seat from valve spring.
6. Remove valve oil seal with a valve oil seal puller (special service
tool).
INSTALLATION
1. Apply new engine oil to valve oil seal joint surface and seal lip.
2. Press in valve oil seal to the height “H” shown in the figure with a
valve oil seal drift (special service tool).
NOTE:
Dimension “H” is height that measured before installing valve
spring (with valve spring seat).
3. Install in the reverse order of removal after this step.
Removal and Installation of Front Oil SealEBS00KNN
REMOVAL
1. Remove the following parts.

RH undercover
PBIC1791E
SEM093F
Height “H” : 11.8 - 12.4 mm (0.465 - 0.488 in)
KBIA1999J

EM-74
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CYLINDER HEAD

Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
Disassembly and AssemblyEBS00KNR
DISASSEMBLY
1. Remove spark plug with spark plug wrench (commercial service tool).
2. Remove spark plug tube, if necessary.

Using pliers, remove it from cylinder head.
CAUTION:

Be careful not to damage cylinder head.

Do not remove spark plug tube if not necessary. Once removed, spark plug tube cannot be
reused because of deformation.
3. Remove valve lifter.

Identify installation positions, and store them without mixing them up.
4. Remove valve collet.
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —
1. Valve collet 2. Valve spring retainer 3. Valve spring (with valve spring seat)
4. Valve oil seal 5. Valve guide 6. Cylinder head
7. Valve seat 8. Valve (INT) 9. Valve (EXH)
10. Spark plug tube 11. Spark plug
PBIC2629E

CYLINDER HEAD
EM-75
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Compress valve spring with valve spring compressor, attach-
ment and adapter (special service tool). Remove valve collet
with a magnet hand.
CAUTION:
When working, be careful not to damage valve lifter holes.
5. Remove valve spring retainer and valve spring (with valve spring seat).
CAUTION:
Do not remove valve spring seat from valve spring.
6. Push valve stem to combustion chamber side, and remove valve.

Identify installation positions, and store them without mixing them up.
7. Remove valve oil seal with a valve oil seal puller (special service
tool).
8. When valve seat must be replaced, refer to EM-79, "
VALVE SEAT REPLACEMENT" to removal.
9. When valve guide must be replaced, refer to EM-77, "
VALVE GUIDE REPLACEMENT" to removal.
ASSEMBLY
1. Install valve guide if removed. Refer to EM-77, "VALVE GUIDE REPLACEMENT" .
2. Install valve seat if removed. Refer to EM-79, "
VALVE SEAT REPLACEMENT" .
3. Install valve oil seal.

Install with a valve oil seal drift (special service tool) to match
dimension in the figure.
NOTE:
Dimension “H” is height that measured before installing valve
spring (with valve spring seat).
4. Install valve.

Install larger diameter to intake side.
PBIC1791E
SEM093F
Height “H” : 11.8 - 12.4 mm (0.465 - 0.488 in)
KBIA1999J