2005 NISSAN X-TRAIL check

CYLINDER HEAD
EM-217
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

7. Install valve spring retainers.
8. Using the valve spring compressor, attachment and adapter
(special service tool), compress valve springs.
Then install valve collets using magnet hand.

After installing valve collets, tap the stem end using the plastic
hammer, and check the installation status.
9. Install valve lifters and adjusting shims to the same positions as before.
INSPECTION AFTER DISASSEMBLY
Valve Dimension

Check dimensions of each valve. For dimensions, refer to EM-
259, "Valve Dimensions" .

If dimensions are out of the standard, replace valve.
Valve Guide Clearance
VALVE STEM DIAMETER

Measure diameter of valve stem with micrometer.
VALVE GUIDE INNER DIAMETER

Measure inner diameter of valve guide with bore gauge.
VALVE GUIDE CLEARANCE

(Valve guide clearance) = (Valve guide inner diameter) – (Valve stem diameter).
PBIC2388E
SEM188A
Standard
Intake : 5.965 - 5.980 mm (0.2348 - 0.2354 in)
Exhaust : 5.945 - 5.960 mm (0.2341 - 0.2346 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 : 0.040 - 0.073 mm (0.0016 - 0.0029 in)
Limit

CYLINDER HEAD
EM-219
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

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. Refer to EM-219, "
Valve Seat Replacement" .
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-261, "
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.Projection length “H” : 10.4 - 10.6 mm (0.409 - 0.417 in)
PBIC2187E
Standard
Intake and Exhaust:
6.000 - 6.018 mm (0.2362 - 0.2369 in)
SEM932C
SBIA0322E
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

EM-220
[YD22DDTi]
CYLINDER HEAD

3. Heat cylinder head to approximately 110 to 130°C (230 to
266°F) by soaking in heated oil.
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 protective 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.
Refer to EM-261, "
Va l v e S e a t" .
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.
6. Using compound, perform valve fitting.
7. Check again to make sure that contacting status is satisfactory.
For details, Refer to EM-219, "
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.
SEM008A
SEM934C
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

CYLINDER HEAD
EM-221
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

Valve Spring Dimensions and Valve Spring Pressure Load

Using valve spring tester, check the following.

If out of the standard, replace the valve spring.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

EM-224
[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.
3. 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.
4. Remove RH engine mounting insulator.
5. Pull LH engine mounting through-bolt out.
6. Remove center member.
7. Remove engine and transaxle assembly from vehicle downward by carefully operating supporting tools.
CAUTION:

During the operation, make sure that no part interferes with vehicle 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.
8. Remove starter motor. Refer to SC-23, "
STARTING SYSTEM" .
9. Separate engine and transaxle and transfer assembly. Refer to MT-19, "
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-222, "
ENGINE ASSEMBLY" .

Make sure that each mounting insulator is seated properly, and tighten mounting bolts and nuts.Slinger bolts:
: 33.5 N·m (3.4 kg-m, 25 ft-lb)
SBIA0191E
KBIA0256E
PBIC2188E

ENGINE ASSEMBLY
EM-225
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-17, "
RECOMMENDED FLUIDS AND LUBRICANTS" .

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 fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.

Bleed air from lines and hoses of applicable lines, such as in cooling system.

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.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 —

EM-228
[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.
3. 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.
4. Remove RH engine mounting insulator.
5. Pull LH engine mounting through-bolt out.
6. Remove mounting bolts at front end of center member.
7. Remove front suspension member mounting bolts and nuts.
Refer to FSU-5, "
FRONT SUSPENSION ASSEMBLY" .
8. 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:
: 33.5 N·m (3.4 kg-m, 25 ft-lb)
SBIA0191E
KBIA0256E
PBIC2188E
KBIA0270E

ENGINE ASSEMBLY
EM-229
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

9. Remove power steering oil pump with piping connected from engine. Move it aside on suspension mem-
ber. Refer to PS-37, "
HYDRAULIC LINE" .
10. Remove front engine mounting and rear engine mounting through-bolts to remove suspension member.
11. Remove starter motor. Refer to SC-23, "
STARTING SYSTEM" .
12. Separate engine and transaxle and transfer assembly. Refer to MT-19, "
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-222, "
ENGINE ASSEMBLY" .

Make sure that each mounting insulator is seated properly, and tighten mounting bolts and nuts.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-17, "
RECOMMENDED FLUIDS AND LUBRICANTS" .

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 fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.

Bleed air from lines and hoses of applicable lines, such as in cooling system.

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.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 —