2001 NISSAN X-TRAIL oil

CYLINDER HEAD
EM-61
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●Intake manifold collector, intake manifold and fuel tube assembly; Refer to EM-16, "INTAKE MANI-
FOLD" .
●Water control valve and housing; Refer to CO-20, "THERMOSTAT AND WATER CONTROL VALVE" .
4. Remove front cover and timing chain. Refer to EM-37, "
TIMING CHAIN" .
5. Remove camshaft. Refer to EM-46, "
CAMSHAFT" .
6. Securely support bottom of cylinder block with a jack or equivalent tool, and remove the hoist that was
supporting it.
7. Remove cylinder head loosening bolts in reverse order shown in
the figure.
INSPECTION AFTER REMOVAL
Outer Diameter of Cylinder Head Bolts
●Cylinder head bolts are tightened by plastic zone tightening
method. Whenever the size difference between d1 and d2
exceeds the limit, replace them with new one.
●If reduction of outer diameter appears in a position other than
d2, use it as d2 point.
INSTALLATION
1. Install cylinder head gasket.
2. Follow the steps below to tighten fixing bolts in the order shown
in figure to install cylinder head.
CAUTION:
●If cylinder head bolts are re-used, check their outer diam-
eters before installation. Refer to EM-61, "
Outer Diameter
of Cylinder Head Bolts" .
●In step “c”, loosen bolts in the reverse order of that indi-
cated in figure.
a. Apply new engine oil to threads and seating surface of mounting
bolts.
b. Tighten all bolts to 98.1 N·m (10 kg-m, 72 ft-lb).
c. Completely loosen to 0 N·m (0 kg-m, 0 ft-lb).
d. Tighten all bolts to 34.3 to 44.1 N·m (3.5 to 4.5 kg-m, 26 to 32 ft-lb).
e. Turn all bolts 75° to 80° (target: 75°) degrees clockwise.
KBIA0058E
Limit (d1 – d2): More than 0.23 mm (0.0091 in).
SBIA0269E
KBIA0058E

EM-62
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CYLINDER HEAD
f. Turn all bolts 75° to 80° (target: 75°) degrees clockwise again.
CAUTION:
Check and confirm the tightening angle by using angle
wrench or protractor. Avoid judgment by visual inspection
without the tool.
3. Install followings in reverse order of removal.
Disassembly and AssemblyEBS00KNR
CAUTION:
●When installing camshafts, chain tensioners, oil seals or other sliding parts, lubricate contacting
surface with new engine oil.
●Apply new engine oil to threads and seat surface when installing cylinder head, camshaft
sprocket, crankshaft pulley and camshaft bracket.
●Attach tags to valve lifters so as not to mix them up.
KBIA0059E
SBIA0251E
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 (INT) 8. Valve (INT) 9. Valve (EXH)
10. Valve seat (EXH) 11. Spark plug 12. Spark plug tube

CYLINDER HEAD
EM-63
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DISASSEMBLY
1. Remove spark plug with spark plug wrench.
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 remove, the spark plug tube cannot be
reused because of deformation.
3. Remove valve lifter.
●Confirm installation point.
4. Remove valve collet.
●Compress valve spring with valve spring compressor.
Remove valve collet with magnet driver.
5. Remove valve spring retainer and valve spring.
CAUTION:
Do not remove valve spring seat from valve spring.
6. Push valve stem to combustion chamber side, and remove
valve.
●Inspect valve guide clearance before removal. Refer to EM-
65, "VALVE GUIDE CLEARANCE" .
●Confirm installation point.
7. Remove valve oil seal with valve oil seal puller.
8. When valve seat must be replaced, refer to EM-66, "
VA LV E
SEAT REPLACEMENT" to removal.
9. When valve guide must be replaced, refer to EM-65, "
VA LV E
GUIDE REPLACEMENT" to removal.
ASSEMBLY
1. Install valve guide. Refer to EM-65, "VALVE GUIDE REPLACEMENT" .
2. Install valve seat. Refer to EM-66, "
VALVE SEAT REPLACEMENT" .
3. Install valve oil seal.
●Install with valve oil seal drift to match dimension in illustra-
tion.
4. Install valve.
●Install larger diameter to intake side.
PBIC0277E
SEM093F
SBIA0270E

EM-64
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CYLINDER HEAD
5. Install valve spring.
●Install smaller pitch (valve spring seat side) to cylinder head
side.
●Confirm identification color of valve spring.
6. Install valve spring retainer.
7. Install valve collet.
●Compress valve spring with valve spring compressor. Install
valve collet with magnet hand.
●Tap stem edge lightly with plastic hammer after installation to check its installed condition.
8. Install valve lifter.
9. Install spark plug tube.
●Press fit it into cylinder head as follows.
a. Remove old liquid gasket from cylinder head side mounting
hole.
b. Apply liquid gasket all round on spark plug tube with a 12 mm
(0.47 in) width from edge of spark plug tube on the press fit side.
Use Genuine Liquid gasket or equivalent.
c. Using a drift (commercial service tool), press fit spark plug tube
so that height is as same as H shown in figure.
CAUTION:
●When press fitting be careful not to deform spark plug tube.
●After press fitting, wipe off any protruding liquid gasket on top surface of cylinder head.
10. Install spark plug with spark plug wrench.
Inspection After DisassemblyEBS00KNS
CYLINDER HEAD DISTORTION
1. Wipe off engine oil and remove water scale (like deposit), gas-
ket, sealer, carbon, etc with scraper.
CAUTION:
Use utmost care not to allow gasket debris to enter pas-
sages for engine oil or water.
2. At each of several locations on bottom surface of cylinder head,
measure distortion in six directions.
VALVE DIMENSIONS
Check dimensions of each valve. For dimensions, refer to SDS, EM-
99, "Valve Dimensions" . Intake : Blue
Exhaust : Yellow
Press fit height “H” standard value:
38.55 - 38.65 mm (1.518 - 1.522 in)
PBIC0525E
SBIA0252E
Standard: 0.1mm (0.004 in)
PBIC0075E
SEM188A

CYLINDER HEAD
EM-65
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VALVE GUIDE CLEARANCE
Perform this inspection before removing valve guide.
1. Make sure that the valve stem diameter is within the specification.
2. Push the valve out by approx. 15 mm (0.59 in) toward the combustion chamber side to measure the
valve's run-out volume (in the direction of dial gauge) with dial gauge.
3. The half of the run-out volume accounts for the valve guide
clearance.
VALVE GUIDE REPLACEMENT
When valve guide is removed, replace with oversized [0.2 mm (0.008 in)] valve guide.
1. To remove valve guide, heat cylinder head to 110 to 130°C (230
to 266°F) by soaking in heated oil.
2. Drive out valve guide with a press [under a 20 kN (2 ton, 2.2 US
ton, 2.0 lmp ton) pressure] or hammer and suitable tool.
CAUTION:
Cylinder head contains heat, when working, wear protective
equipment to avoid getting burned.
3. Ream cylinder head valve guide hole.
4. Heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in
heated oil.Standard
Intake : 0.020 - 0.053 mm (0.0008 - 0.0021 in)
Exhaust : 0.030 - 0.063 mm (0.0012 - 0.0025 in)
PBIC0077E
SEM008A
SEM931C
Valve guide hole diameter (for service parts)
Intake and exhaust:
10.175 - 10.196 mm (0.4006 - 0.4014 in)
SEM932C

CYLINDER HEAD
EM-67
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3. Heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in
heated oil.
4. Provide valve seats cooled well with dry ice. Force fit valve seat
into cylinder head.
CAUTION:
●Avoid directly to touching cold valve seats.
●Cylinder head contains heat, when working, wear protec-
tive equipment to avoid getting burned.
5. Using valve seat cutter set or valve seat grinder, finish the seat
to the specified dimensions.
CAUTION:
When using valve seat cutter, firmly grip the cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cut in a single drive. Improper
pressure on with the cutter or cutting many different times
may result in stage valve seat.
●Grind to obtain the dimensions indicated in figure.
6. Using compound, grind to adjust valve fitting.
7. Check again for normal contact.
VALVE SPRING SQUARENESS
Set try square along the side of valve spring and rotate the spring.
Measure the maximum clearance between the top face of spring and
try square.
SEM008A
SEM934C
Standard
D1 dia. : 33.5 mm (1.3189 in)
D2 dia. : 35.1 - 35.3 mm (1.382 - 1.390 in)
D3 dia. : 39.0 - 39.2 mm (1.535 - 1.543 in)
D4 dia. : 28 mm (1.10 in)
D5 dia. : 29.9 - 30.1 mm (1.177 - 1.185 in)
D6 dia. : 33.5 - 33.7mm (1.319 - 1.327 in)
SBIA0226E
Limit: More than 1.9 mm (0.0748 in).
PBIC0080E

ENGINE ASSEMBLY
EM-71
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●Use a manual lift table caddy or equivalently rigid tool such as
a jack or trestle. Securely support bottom of engine and tran-
saxle, and simultaneously adjust hoist tension.
CAUTION:
Put a piece of wood or something similar as the support-
ing surface, secure a completely stable condition.
23. Remove RH engine mounting insulator.
24. Pull LH engine mounting through-bolt out.
25. Remove mounting bolts at front end of center member.
26. Remove front suspension member mounting bolts and nuts.
27. Remove engine, transaxle and transfer assembly with suspen-
sion member from vehicle downward by carefully operating sup-
porting tools.
CAUTION:
●During the operation, make sure that no part interferes
with body side.
●Before and during this lifting, always check if any har-
nesses are left connected.
●During the removal operation, always be careful to pre-
vent vehicle from falling off the lift due to changes in the center of gravity.
●If necessary, support vehicle by setting a jack or equivalent tool at the rear.
28. Remove power steering pump with piping connected from engine. Move it aside on suspension member.
29. Remove front engine mounting and rear engine mounting through-bolts to remove suspension member.
30. Remove starter motor.
31. Separate engine and transaxle. Refer to MT-15, "
TRANSAXLE ASSEMBLY" (M/T models) or AT- 4 1 8 ,
"REMOVAL AND INSTALLATION" (A/T models)
INSTALLATION
Install in the reverse order of removal.
●Do not allow engine oil to get on mounting insulator. Be careful not to damage mounting insulator.
●When installation directions are specified, install parts according to the direction marks on them referring
to components illustration.
●Make sure that each mounting insulator is seated properly, and tighten mounting bolts and nuts.
INSPECTION AFTER INSTALLATION
●Before starting engine, check the levels of engine coolant, lubrications and working engine oils. If less
than required quantity, fill to the specified level.
●Run engine to check for unusual noise and vibration.
●Warm up engine thoroughly to make sure there is no leakage of engine coolant, lubricants, working
engine oil, fuel and exhaust gas.
KBIA0256E
KBIA0257E
KBIA0270E

CYLINDER BLOCK
EM-73
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CYLINDER BLOCKPFP:11010
Disassembly and AssemblyEBS00KNU
KBIA0258E
1. Cylinder block 2. O-ring 3. Crankshaft position sensor (POS)
4. Knock sensor 5. Oil pressure switch 6. Lower cylinder block
7. Lower cylinder block bolt 8. Snap ring 9. Connecting rod
10. Connecting rod bearing 11. Connecting rod bearing cap 12. Connecting rod bolt
13. Piston 14. Oil ring 15. Second ring
16. Top ring 17. Piston pin 18. Thrust bearing
19. Main bearing upper 20. Crankshaft 21. Main bearing lower
22. Rear oil seal 23. Pilot convertor (A/T model) 24. Signal plate
25. Drive plate (A/T model) 26. Reinforce plate (A/T model) 27. Flywheel (M/T model)