Page 257 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual CYLINDER HEAD
EM-205
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
4. Heat cylinder head to 110 to 130°C (230 to 266°F) in oil bath.
5. Using the valve guide drift (commercial service tool), press fit
valv NISSAN X-TRAIL 2003 Service Repair Manual CYLINDER HEAD
EM-205
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
4. Heat cylinder head to 110 to 130°C (230 to 266°F) in oil bath.
5. Using the valve guide drift (commercial service tool), press fit
valv](/manual-img/5/57404/w960_57404-256.png)
CYLINDER HEAD
EM-205
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
4. Heat cylinder head to 110 to 130°C (230 to 266°F) in oil bath.
5. Using the valve guide drift (commercial service tool), press fit
valve guides from camshaft side, referring to the dimension
shown in the figure.
CAUTION:
Cylinder head contains heat, when working, wear protective
equipment to avoid getting burned.
6. Using the valve guide reamer (commercial service tool), perform
reaming to the press-fitted valve guides.
Valve Seat Contact
Before starting this check, confirm that the dimension of valve
guide and valves are as specified.
Apply red lead primer on contacting surfaces of valves seat and
of valve face to examine the conditions of contacting surfaces.
Make sure that the paint on contacting surfaces is continuous
along the entire circumference.
If there are abnormal indications, grind the valve and check the
contact again. If malfunction indications still persist, replace
valve seat.
Valve Seat Replacement
When removing valve seat, replace it 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-240, "
Va l v e S e a t" .
SEM008A
Projection “L” : 10.4 - 10.6 mm (0.409 - 0.417 in)
PBIC2497E
Reaming specifications:
Intake and Exhaust
6.000 - 6.018 mm (0.2362 - 0.2369 in)
SEM932C
SBIA0322E
Page 258 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual EM-206
[YD22DDTi]
CYLINDER HEAD
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 co NISSAN X-TRAIL 2003 Service Repair Manual EM-206
[YD22DDTi]
CYLINDER HEAD
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 co](/manual-img/5/57404/w960_57404-257.png)
EM-206
[YD22DDTi]
CYLINDER HEAD
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 approximately 110 to 130°C (230 to
266°F) in oil bath.
4. After cooling valve seats sufficiently with dry ice, press fit it to
cylinder head.
CAUTION:
Do not touch the cooled valve seats directly by hand.
Cylinder head contains heat, when working, wear protec-
tive equipment to avoid getting burned.
5. Using the valve seat cutter set (commercial service tool), finish
processing referring to the dimensions shown in the figure.
CAUTION:
When using the valve seat cutter set, grasp cutter handle
with both hands, press cutter onto contacting face all
around, and cut thoroughly. If cutter is pressed unevenly or
repeatedly, the valve seat surface may be damaged.
Grind to obtain the dimensions indicated in the figure. Refer to
EM-240, "
Va l v e S e a t" . Oversize [0.5 mm (0.020 in)]:
Intake : 30.500 - 30.516 mm (1.2008 - 1.2014 in)
Exhaust : 29.500 - 29.516 mm (1.1614 - 1.1620 in)
SEM795A
SEM008A
SEM934C
PBIC2028E
Page 259 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual CYLINDER HEAD
EM-207
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
6. Using compound, perform valve fitting.
7. Check again to make sure that contacting status is satisfactory.
For details, Refer to EM-205, NISSAN X-TRAIL 2003 Service Repair Manual CYLINDER HEAD
EM-207
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
6. Using compound, perform valve fitting.
7. Check again to make sure that contacting status is satisfactory.
For details, Refer to EM-205,](/manual-img/5/57404/w960_57404-258.png)
CYLINDER HEAD
EM-207
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
6. Using compound, perform valve fitting.
7. Check again to make sure that contacting status is satisfactory.
For details, Refer to EM-205, "
Valve Seat Contact" .
8. Use the depth gauge to measure the distance between the
mounting surface of cylinder head spring seat and the valve
stem end. If the distance is shorter than specified, repeat step 5
above to adjust it. If it is longer, replace valve seat with a new
one.
Valve Spring Square
Position the try square to valve spring, turn the spring, and mea-
sure the maximum clearance value between top surface of
spring and the try square.
If it exceeds the limit, replace valve spring.
Valve Spring Dimensions and Valve Spring Pressure Load
Using valve spring tester, check the following.
If out of the standard, replace the valve spring.Valve seat resurface limit “L”:
Intake : 36.53 - 36.98 mm (1.4382 - 1.4559 in)
Exhaust : 36.53 - 37.01 mm (1.4382 - 1.4571 in)
JEM253G
Limit : 1.9 mm (0.075 in)
PBIC0080E
Standard:
Free height : 43.7 mm (1.720 in)
Installation height : 32.82 mm (1.2921 in)
Installation load : 184 - 208 N
(18.77 - 21.22 kg, 41.4 - 46.8 lb)
Height during
valve open: 24.82 mm (0.9772 in)
Load with valve
open: 320 - 360 N
(32.65 - 36.73 kg, 71.9 - 80.9 lb)
SEM113
Page 260 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual EM-208
[YD22DDTi]
ENGINE ASSEMBLY
ENGINE ASSEMBLYPFP:10001
Removal and InstallationEBS00LRY
WARNING:
Situate vehicle on a flat and solid surface.
Place chocks at front and back of rear wheels.
Fo NISSAN X-TRAIL 2003 Service Repair Manual EM-208
[YD22DDTi]
ENGINE ASSEMBLY
ENGINE ASSEMBLYPFP:10001
Removal and InstallationEBS00LRY
WARNING:
Situate vehicle on a flat and solid surface.
Place chocks at front and back of rear wheels.
Fo](/manual-img/5/57404/w960_57404-259.png)
EM-208
[YD22DDTi]
ENGINE ASSEMBLY
ENGINE ASSEMBLYPFP:10001
Removal and InstallationEBS00LRY
WARNING:
Situate 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 engine coolant are cool enough.
If items or work required are not covered by the engine main body 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 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. Rear engine mounting bracket 3. RH engine mounting insulator
4. RH engine mounting bracket 5. Front engine mounting bracket 6. Front engine mounting insulator
7. Center member 8. LH engine mounting insulator 9. LH engine mounting bracket
10. Stopper 11. Grommet (2pcs)
PBIC1257E
Page 261 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual ENGINE ASSEMBLY
EM-209
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
REMOVAL
Description of work
Remove engine, transaxle and transfer assembly with front suspension member from vehicle downward. Sep-
arate NISSAN X-TRAIL 2003 Service Repair Manual ENGINE ASSEMBLY
EM-209
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
REMOVAL
Description of work
Remove engine, transaxle and transfer assembly with front suspension member from vehicle downward. Sep-
arate](/manual-img/5/57404/w960_57404-260.png)
ENGINE ASSEMBLY
EM-209
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
REMOVAL
Description of work
Remove engine, transaxle and transfer assembly with front suspension member from vehicle downward. Sep-
arate suspension member, and then separate engine and transaxle.
Preparation
1. Remove hood assembly. Refer to BL-12, "HOOD" .
2. Drain engine coolant from radiator drain plug. Refer to CO-31, "
DRAINING ENGINE COOLANT" .
3. Remove the following parts.
LH/RH engine undercover
LH/RH front wheels
Battery; Refer to SC-3, "BATTERY" .
Drive belts; Refer to EM-132, "Removal and Installation" .
Air duct and air cleaner case assembly; Refer to EM-133, "Removal and Installation" .
Alternator; Refer to SC-16, "Removal and Installation" .
Radiator and cooling fan assembly; Refer to CO-34, "Removal and Installation" and CO-36, "COOL-
ING FAN" .
Charge air cooler; Refer to EM-135, "CHARGE AIR COOLER" .
4. Disconnect engine room harness from the engine side and set it aside for easier work.
5. Disconnect all the body-side vacuum hoses and air hoses at engine side.
Engine room LH
1. Disconnect fuel feed hose and return hose, and plug it to prevent fuel from draining. Refer to EM-136,
"INTAKE MANIFOLD" .
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to EM-136,
"INTAKE MANIFOLD" .
3. Remove clutch operating cylinder from transaxle, and move it aside. Refer to MT-17, "
TRANSAXLE
ASSEMBLY" and CL-10, "OPERATING CYLINDER" .
4. Disconnect shift cable from transaxle. Refer to MT-14, "
CONTROL LINKAGE" .
Engine room RH
1. Remove engine coolant reservoir tank. Refer to CO-34, "RADIATOR" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on body with a rope to
avoid putting load on it. Refer to ATC-144, "
Removal and Installation of Compressor" .
Vehicle underbody
1. Remove exhaust front tube. Refer to EX-2, "Removal and Installation" .
2. Remove propeller shaft. Refer to PR-4, "
Removal and Installation" .
3. Remove steering shaft from steering gear. Refer to PS-10, "
STEERING COLUMN" .
4. Disconnect power steering fluid cooler piping at a point between body and engine. Refer to PS-34,
"HYDRAULIC LINE" .
5. Remove ABS sensor from brake caliper. Refer to BRC-45, "
WHEEL SENSORS" (ABS), BRC-116,
"WHEEL SENSORS" (ESP/TCS/ABS).
6. Remove brake caliper with piping connected from steering knuckle. Temporarily secure it on body with a
rope to avoid load on it. Refer to BR-27, "
FRONT DISC BRAKE" .
7. Remove left and right suspensions from steering knuckle under strut. Refer to FSU-5, "
FRONT SUSPEN-
SION ASSEMBLY" .
Page 262 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual EM-210
[YD22DDTi]
ENGINE ASSEMBLY
Removal
1. Install engine slingers into front right of cylinder head and rear
left of cylinder head.
2. Lift with hoist and secure engine in position.
Use the manu NISSAN X-TRAIL 2003 Service Repair Manual EM-210
[YD22DDTi]
ENGINE ASSEMBLY
Removal
1. Install engine slingers into front right of cylinder head and rear
left of cylinder head.
2. Lift with hoist and secure engine in position.
Use the manu](/manual-img/5/57404/w960_57404-261.png)
EM-210
[YD22DDTi]
ENGINE ASSEMBLY
Removal
1. Install engine slingers into front right of cylinder head and rear
left of cylinder head.
2. Lift with hoist and secure engine in position.
Use the manual lift table caddy (commercial service tool) or
equivalently rigid tool such as a jack or trestle. Securely support
bottom of engine and transaxle, and simultaneously adjust hoist
tension.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
3. Remove RH engine mounting insulator.
4. Pull LH engine mounting through-bolt out.
5. Remove mounting bolts at front end of center member.
6. Remove front suspension member mounting bolts and nuts.
Refer to FSU-5, "
FRONT SUSPENSION ASSEMBLY" .
7. Remove engine, transaxle and transfer assembly with suspension member and center member from vehi-
cle downward by carefully operating supporting tools.
CAUTION:
During the operation, make sure that no part interferes with body side.
Before and during this lifting, always check if any harnesses are left connected.
During the removal operation, always be careful to prevent 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.Slinger bolts:
: 30 - 37 N·m (3.0 - 3.8 kg-m, 22 - 27 ft-lb)
SBIA0191E
KBIA0256E
PBIC2188E
KBIA0270E
Page 263 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual ENGINE ASSEMBLY
EM-211
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
8. Remove power steering oil pump with piping connected from engine. Move it aside on suspension mem-
ber. Refer to PS-34, "
HYDRAULIC LIN NISSAN X-TRAIL 2003 Service Repair Manual ENGINE ASSEMBLY
EM-211
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
8. Remove power steering oil pump with piping connected from engine. Move it aside on suspension mem-
ber. Refer to PS-34, "
HYDRAULIC LIN](/manual-img/5/57404/w960_57404-262.png)
ENGINE ASSEMBLY
EM-211
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
8. Remove power steering oil pump with piping connected from engine. Move it aside on suspension mem-
ber. Refer to PS-34, "
HYDRAULIC LINE" .
9. Remove front engine mounting and rear engine mounting through-bolts to remove suspension member.
10. Remove starter motor. Refer to SC-21, "
STARTING SYSTEM" .
11. Separate engine and transaxle. Refer to MT-17, "
TRANSAXLE ASSEMBLY" .
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 figure of components. Refer to EM-208, "
ENGINE ASSEMBLY" .
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, engine oil and working fluid. If less than
required quantity, fill to the specified level.
Before starting engine, bleed air from fuel piping. Refer to FL-18, "Air Bleeding" .
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.
Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.
After cooling down engine, again check amounts of engine coolant, engine oil and working fluid. Refill to
specified level, if necessary.
Summary of the inspection items:
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Working fluid Level Leakage Level
Fuel — Leakage —
Exhaust gas — Leakage —
Page 264 of 4179
EM-212
[YD22DDTi]
CYLINDER BLOCK
CYLINDER BLOCKPFP:11010
Disassembly and AssemblyEBS00ODX
PBIC2029E