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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.
CAUTI NISSAN X-TRAIL 2005 Service Repair Manual 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.
CAUTI](/manual-img/5/57403/w960_57403-128.png)
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
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![NISSAN X-TRAIL 2005 Service Repair Manual EM-76
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CYLINDER HEAD
5. Install valve spring (with valve spring seat).
Install smaller pitch (valve spring seat side) to cylinder head
side.
Confirm identification color of valve spring.
6. In NISSAN X-TRAIL 2005 Service Repair Manual EM-76
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CYLINDER HEAD
5. Install valve spring (with valve spring seat).
Install smaller pitch (valve spring seat side) to cylinder head
side.
Confirm identification color of valve spring.
6. In](/manual-img/5/57403/w960_57403-129.png)
EM-76
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CYLINDER HEAD
5. Install valve spring (with valve spring seat).
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 a valve spring compressor,
attachment and adapter (special service tool). Install valve
collet with a magnet hand.
CAUTION:
When working, be careful not to damage valve lifter
holes.
Tap valve stem edge lightly with a plastic hammer after instal-
lation to check its installed condition.
8. Install valve lifter.
9. Install spark plug tube if removed.
Press-fit it into cylinder head with the following procedure:
a. Remove old thread locking sealant from cylinder head side
installation hole.
b. Apply thread locking sealant all round on spark plug tube within
approximately 12 mm (0.47 in) width from edge of spark plug
tube on the press-fit side.
Use Genuine Thread Locking Sealant or equivalent.
c. Using a drift, 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 thread locking sealant on top surface of cylinder
head.
10. Install spark plug with spark plug wrench (commercial service tool).Intake : Blue
Exhaust : Yellow
PBIC0525E
PBIC1791E
Standard press-fit height “H”:
41.2 - 42.2 mm (1.622 - 1.661 in)
PBIC2636E
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![NISSAN X-TRAIL 2005 Service Repair Manual CYLINDER HEAD
EM-77
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Inspection After DisassemblyEBS00KNS
VALVE DIMENSIONS
Check dimensions of each valve. For dimensions, refer to EM-
11 8 , "Valve Dimensions" .
I NISSAN X-TRAIL 2005 Service Repair Manual CYLINDER HEAD
EM-77
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Inspection After DisassemblyEBS00KNS
VALVE DIMENSIONS
Check dimensions of each valve. For dimensions, refer to EM-
11 8 , "Valve Dimensions" .
I](/manual-img/5/57403/w960_57403-130.png)
CYLINDER HEAD
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Inspection After DisassemblyEBS00KNS
VALVE DIMENSIONS
Check dimensions of each valve. For dimensions, refer to EM-
11 8 , "Valve Dimensions" .
If dimensions are out of the standard, replace valve.
VALVE GUIDE CLEARANCE
Valve Stem Diameter
Measure the diameter of valve stem with a micrometer.
Valve Guide Inner Diameter
Measure the inner diameter of valve guide with a bore gauge.
Valve Guide Clearance
(Valve guide clearance) = (Valve guide inner diameter) – (Valve stem diameter).
If it exceeds the limit, replace valve guide and/or valve.
VALVE GUIDE REPLACEMENT
When valve guide is removed, replace with oversized [0.2 mm (0.008 in)] valve guide.
SEM188A
Standard
Intake : 5.965 - 5.980 mm (0.2348 - 0.2354 in)
Exhaust : 5.955 - 5.970 mm (0.2344 - 0.2350 in)
SEM938C
Standard
Intake and Exhaust
: 6.000 - 6.018 mm (0.2362 - 0.2369 in)
Valve guide clearance:
Standard
Intake : 0.020 - 0.053 mm (0.0008 - 0.0021 in)
Exhaust : 0.030 - 0.063 mm (0.0012 - 0.0025 in)
Limit
Intake : 0.08 mm (0.003 in)
Exhaust : 0.09 mm (0.004 in)
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EM-78
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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 with a valve guide reamer
(commercial service tool).
4. Heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in
heated oil.
5. Press valve guide from camshaft side to dimensions as shown
in the figure.
CAUTION:
Cylinder head contains heat, when working, wear protective
equipment to avoid getting burned.
SEM008A
SEM931C
Valve guide hole diameter (for service parts):
Intake and exhaust
: 10.175 - 10.196 mm (0.4006 - 0.4014 in)
SEM932C
SEM008A
Projection “H”:
Intake : 10.1 - 10.3 mm (0.398 - 0.406 in)
Exhaust : 10.0 - 10.4 mm (0.394 - 0.409 in)
PBIC2187E
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EM-79
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6. Apply reamer finish to valve guide with a valve guide reamer
(commercial service tool).
VALVE SEAT CONTACT
After confirming that the dimensions NISSAN X-TRAIL 2005 Service Repair Manual CYLINDER HEAD
EM-79
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6. Apply reamer finish to valve guide with a valve guide reamer
(commercial service tool).
VALVE SEAT CONTACT
After confirming that the dimensions](/manual-img/5/57403/w960_57403-132.png)
CYLINDER HEAD
EM-79
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6. Apply reamer finish to valve guide with a valve guide reamer
(commercial service tool).
VALVE SEAT CONTACT
After confirming that the dimensions of valve guides and valves
are within specifications, perform this procedure.
Apply prussian blue (or white lead) onto contacting surface of
valve seat to check the condition of the valve contact on the sur-
face.
Check if the contact area band is continuous all around the cir-
cumference.
If not, grind to adjust valve fitting and check again. If the contact-
ing surface still has NG conditions even after the re-check,
replace valve seat.
VALVE SEAT REPLACEMENT
When valve seat is removed, replace with oversized [0.5 mm (0.020 in)] valve seat.
1. Bore out old seat until it collapses. Boring should not continue beyond the bottom face of the seat recess
in cylinder head. Set the machine depth stop to ensure this. Refer to EM-121, "
Va l v e S e a t" .
2. Ream cylinder head recess diameter for service valve seat.
Be sure to ream in circles concentric to the valve guide center.
This will enable valve seat to fit correctly.
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. Press-fit valve seat into cylinder head.
CAUTION:
Avoid directly to touching cold valve seats.
Cylinder head contains heat, when working, wear protective equipment to avoid getting burned.Standard
Intake and exhaust:
6.000 - 6.018 mm (0.2362 - 0.2369 in)
SEM932C
SBIA0322E
Oversize [0.5 mm (0.020 in)]
Intake : 37.000 - 37.016 mm (1.4567 - 1.4573 in)
Exhaust : 32.000 - 32.016 mm (1.2598 - 1.2605 in)
SEM795A
SEM008A
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![NISSAN X-TRAIL 2005 Service Repair Manual EM-80
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CYLINDER HEAD
5. Using valve seat cutter set (commercial service tool) or valve
seat grinder, finish valve seat to the specified dimensions. For
dimensions, refer to EM-121, "
Va l v e S NISSAN X-TRAIL 2005 Service Repair Manual EM-80
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CYLINDER HEAD
5. Using valve seat cutter set (commercial service tool) or valve
seat grinder, finish valve seat to the specified dimensions. For
dimensions, refer to EM-121, "
Va l v e S](/manual-img/5/57403/w960_57403-133.png)
EM-80
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CYLINDER HEAD
5. Using valve seat cutter set (commercial service tool) or valve
seat grinder, finish valve seat to the specified dimensions. For
dimensions, refer to EM-121, "
Va l v e S e a t" .
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.
6. Using compound, grind to adjust valve fitting.
7. Check again for normal contact. Refer to EM-79, "
VALVE SEAT CONTACT" .
VALVE SPRING SQUARENESS
Set try square along the side of valve spring and rotate the
spring. Measure the maximum clearance between the top of
valve spring and try square.
CAUTION:
Do not remove valve spring seat from valve spring.
If it exceeds the limit, replace valve spring (with valve spring
seat).
VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
Check valve spring pressure with valve spring seat installed at
the specified spring height.
CAUTION:
Do not remove valve spring seat from valve spring.
Standard:
If the installation load or load with valve open is out of the standard, replace valve spring (with valve spring
seat).
SEM934C
Limit: 1.9 mm (0.075 in)
PBIC0080E
SEM113
Items Intake Exhaust
Free height 44.84 - 45.34 mm (1.7654 - 1.7850 in) 45.28 - 45.78 mm (1.7827 - 1.8024 in)
Installation height 35.30 mm (1.390 in) 35.30 mm (1.390 in)
Installation load 151 - 175 N (15.4 - 17.8 kg, 34 - 39 lb) 151 - 175 N (15.4 - 17.8 kg, 34 - 39 lb)
Height during valve open 24.94 mm (0.9819 in) 26.39 mm (1.0390 in)
Load with valve open 358 - 408 N (36.5 - 41.6 kg, 80 - 92 lb) 325 - 371 N (33.1 - 37.8 kg, 73 - 83 lb)
Identification color Blue Yellow
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EM-81
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ENGINE ASSEMBLYPFP:10001
Removal and Installation (2WD Models)EBS01FKJ
WARNING:
Situate the vehicle on a flat and solid surface.
Place chocks a NISSAN X-TRAIL 2005 Service Repair Manual ENGINE ASSEMBLY
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ENGINE ASSEMBLYPFP:10001
Removal and Installation (2WD Models)EBS01FKJ
WARNING:
Situate the vehicle on a flat and solid surface.
Place chocks a](/manual-img/5/57403/w960_57403-134.png)
ENGINE ASSEMBLY
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ENGINE ASSEMBLYPFP:10001
Removal and Installation (2WD Models)EBS01FKJ
WARNING:
Situate the vehicle on a flat and solid surface.
Place chocks at front and back of rear wheels.
For engines not equipped with engine slingers, attach proper slingers and bolts described in
PARTS CATALOG.
CAUTION:
Always be careful to work safely, avoid forceful or uninstructed operations.
Do not start working until exhaust system and coolant are cool enough.
If items or work required are not covered by the engine section, refer to the applicable sections.
Always use the support point specified for lifting.
Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for
unavoidable reasons, support at the rear axle jacking point with a transmission jack or similar tool
before starting work, in preparation for the backward shift of center of gravity.
For supporting points for lifting and jacking point at rear axle, refer to GI-36, "Garage Jack and
Safety Stand" .
1. Rear engine mounting insulator 2. Rubber seat 3. Rear engine mounting bracket
4. RH engine mounting insulator 5. RH engine mounting bracket 6. Front engine mounting bracket
7. Front engine mounting insulator 8. Grommet 9. Center member
10. LH engine mounting insulator 11. Stopper 12. LH engine mounting bracket
PBIC3831E
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![NISSAN X-TRAIL 2005 Service Repair Manual EM-82
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ENGINE ASSEMBLY
REMOVAL
Outline
Remove engine and transaxle assembly from vehicle downward. Separate engine and transaxle.
Preparation
1. Remove hood assembly. Refer to BL-12, "HOOD" .
2. NISSAN X-TRAIL 2005 Service Repair Manual EM-82
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ENGINE ASSEMBLY
REMOVAL
Outline
Remove engine and transaxle assembly from vehicle downward. Separate engine and transaxle.
Preparation
1. Remove hood assembly. Refer to BL-12, "HOOD" .
2.](/manual-img/5/57403/w960_57403-135.png)
EM-82
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ENGINE ASSEMBLY
REMOVAL
Outline
Remove engine and transaxle assembly from vehicle downward. Separate engine and transaxle.
Preparation
1. Remove hood assembly. Refer to BL-12, "HOOD" .
2. Release fuel pressure. Refer to EC-49, "
FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-562,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
3. Drain engine coolant from radiator. Refer to CO-9, "
Changing Engine Coolant" .
CAUTION:
Perform this step when the engine is cold.
Do not spill engine coolant on drive belt.
4. Remove the following parts.
LH and RH undercovers
Front road wheels and tyres
Battery; Refer to SC-4, "BATTERY" .
Drive belt; Refer to EM-13, "DRIVE BELTS" .
Air duct and air cleaner case assembly; Refer to EM-16, "AIR CLEANER AND AIR DUCT" .
Alternator; Refer to SC-13, "CHARGING SYSTEM" .
Radiator and radiator cooling fan assembly; Refer to CO-12, "RADIATOR" .
5. Disconnect engine room harness from the engine side and set it aside for easier work.
6. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine Room LH
1. Disconnect fuel feed hoses, and plug them to prevent fuel from draining. Refer to EM-34, "FUEL INJEC-
TOR AND FUEL TUBE" .
2. Disconnect heater hoses, and install plugs them to prevent engine coolant from draining. Refer to CO-23,
"THERMOSTAT AND WATER CONTROL VALVE" .
3. Disconnect clutch operating cylinder from transaxle, and move it aside. Refer to CL-12, "
OPERATING
CYLINDER" .
4. Disconnect shift and select cable from transaxle. Refer to MT-16, "
CONTROL LINKAGE" .
5. Disconnect B terminal harness of starter motor. Refer to SC-23, "
STARTING SYSTEM" .
Engine Room RH
1. Remove engine coolant reservoir tank. Refer to CO-12, "RADIATOR" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on vehicle side with a
rope to avoid putting load on it. Refer to ATC-144, "
Removal and Installation of Compressor" .
3. Remove power steering oil pump with piping connected from engine. Temporarily secure it on vehicle side
with a rope to avoid putting load on it. Refer to PS-37, "
HYDRAULIC LINE" .
Vehicle Underbody
1. Remove exhaust front tube. Refer to EX-2, "EXHAUST SYSTEM" .
2. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to MT-19, "
TRAN-
SAXLE ASSEMBLY" .
3. Remove front wheel sensor (LH and RH) for ABS from steering knuckle. Refer to BRC-46, "
WHEEL SEN-
SORS" .
4. Remove brake caliper assembly with piping connected from steering knuckle. Temporarily secure it on the
vehicle side with a rope to avoid load on it. Refer to BR-27, "
FRONT DISC BRAKE" .
5. Remove LH and RH drive shafts from steering knuckle. Refer to FAX-11, "
FRONT DRIVE SHAFT" .
Removal
1. Install engine slingers into front-left of cylinder head and rear-right of cylinder head.