2005 NISSAN X-TRAIL Em16

CAMSHAFT
EM-181
[YD22DDTi]
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Loosen the camshaft sprocket mounting bolt by fixing the hex-
agonal portion of camshaft.
10.11. Remove camshaft as follows:
a. Loosen and remove the camshaft sprocket bolts in reverse order
shown in the figure.
b. Place distinguishing marks on the right and left sides with paint.
12. Remove adjusting shim and valve lifter.

Remove by taking notice of the installation position, and place outside engine in order to prevent confu-
sion.
INSPECTION AFTER REMOVAL
Visual Check of Camshaft

Check the camshaft for one sided wear or scratches.

Replace the camshaft if there are abnormalities.
Camshaft Runout

Prepare V-block on a flat surface and secure camshaft journals
No. 2 and No. 5.

Set the dial indicator vertically on journal No. 3.

Rotate camshaft in one direction by hand, then read needle
movement on dial indicator (total indicator reading).

If it exceeds the limit, replace camshaft.
Camshaft Cam Height

Measure the height of camshaft cam using the micrometer.

If out of the standard, replace camshaft.
JEM159G
JEM160G
Limit : 0.02 mm (0.0008 in)
PBIC2499E
Standard:
Intake : 39.505 - 39.695 mm (1.5553 - 1.5628 in)
Exhaust : 39.905 - 40.095 mm (1.5711 - 1.5785 in)
SEM549A

EM-182
[YD22DDTi]
CAMSHAFT

Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER

Measure outer diameter of camshaft journal with micrometer.
CAMSHAFT BRACKET INNER DIAMETER

Install camshaft bracket and tighten bolts to the specified torque. Refer to EM-184, "INSTALLATION" for
the tightening procedure.

Measure inner diameter of camshaft bracket using the inside
micrometer.
CAMSHAFT OIL CLEARANCE CALCULATIONS

(Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter)

If out of standard, refer to the standard value of each unit, then replace the camshaft and/or cylinder head.
NOTE:
As the camshaft bracket is manufactured with the cylinder head, it is impossible to replace only the cam-
shaft bracket.
Camshaft End Play

Install dial indicator in thrust direction on front end of camshaft.
Measure end play of dial indicator when camshaft is moved for-
ward/backward (in direction to axis).Standard:
No. 1 : 30.435 - 30.455 mm
(1.1982 - 1.1990 in)
No. 2, 3, 4, 5 : 23.935 - 23.955 mm
(0.9423 - 0.9431 in)
SEM012A
Standard:
No. 1 : 30.500 - 30.521 mm
(1.2008 - 1.2016 in)
No. 2, 3, 4, 5 : 24.000 - 24.021 mm
(0.9449 - 0.9457 in)
JEM162G
Standard : 0.045 - 0.086 mm (0.0018 - 0.0034 in)
Standard : 0.070 - 0.148 mm (0.0028 - 0.0058 in)
Limit : 0.24 mm (0.0094 in)
PBIC2446E

CAMSHAFT
EM-183
[YD22DDTi]
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Measure the following parts if out of the standard.
–Dimension “A” for camshaft
–Dimension “B” for cylinder head

Refer to the standards above, and then replace camshaft and/or
cylinder head.
Camshaft Sprocket Runout
1. Install camshaft in cylinder head. Refer to EM-184, "INSTALLATION" for the tightening procedure.
2. Install sprocket on camshaft. Refer to EM-184, "
INSTALLA-
TION" .
3. Measure camshaft sprocket runout (total indicator reading).

If it exceeds the limit, replace camshaft sprocket.
Valve Lifter and Adjusting Shim
Check if surface of valve lifter and adjusting shim has any wear or
cracks.

If anything above is found, replace valve lifter or adjusting shim. Standard : 6.882 - 6.930 mm (0.2709 - 0.2728 in)
Standard : 7.000 - 7.030 mm (0.2755 - 0.2767 in)
PBIC2320E
Limit : 0.15 mm (0.0059 in)
PBIC2644E
SEM160D

CAMSHAFT
EM-185
[YD22DDTi]
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Install so that knock pins are positioned in the directions
shown in the figure.
NOTE:
Though camshaft does not stop at the location as shown in
the figure, for the placement of cam nose, it is generally
accepted that camshaft is placed at the same direction as
shown in the figure.
3. Install camshaft brackets.

Completely remove any foreign material on back surfaces of camshaft brackets and top surface of cyl-
inder head.

Install correctly, identifying brackets by the journal No. and
front mark on top surface.
4. Tighten bolts in the order shown in the figure according to the
following procedure:
a. Tighten all bolts.

Make sure camshaft thrusting parts (on rear side) securely fit
in their mating parts on the cylinder head.
b. Tighten all bolts.
c. Tighten all bolts.
5. Install camshaft sprockets.

Camshaft sprockets are commonly used for right side and left side.

Align camshaft sprocket and knock pin on camshaft, and install.

Holding the hexagonal part of camshaft with a wrench, tighten bolt securing camshaft sprocket.
6. Before installing spill tube after installing secondary timing chain, check and adjust valve clearance. Refer
to EM-185, "
Valve Clearance" .
7. Hereafter, install in the reverse order of removal.
8. Before starting engine, bleed air from fuel piping. Refer to FL-18, "
Air Bleeding" .
Va l v e C l e a r a n c eEBS00LRS
INSPECTION

When the camshaft or parts in connection with valves are removed or replaced, and a malfunction has
occurred (poor starting, idling, or other malfunction) due to the misadjustment of the valve clearance,
inspect as follows.

Inspect and adjust when the engine is cool (at normal temperature).
PBIC2026E
JEM175G
: 2 N·m (0.2 kg-m, 1 ft-lb)
: 6 N·m (0.6 kg-m, 4 ft-lb)
: 12.5 N·m (1.3 kg-m, 9 ft-lb)
JEM160G

EM-190
[YD22DDTi]
OIL SEAL

OIL SEALPFP:12279
Removal and Installation of Valve Oil SealEBS01FBM
REMOVAL
1. Remove camshafts. Refer toEM-180, "Removal and Installation" .
2. Remove adjusting shims and valve lifters. Refer to EM-180, "
Removal and Installation" .

Check the installation positions, and keep them to avoid being confused.
3. Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve
from dropping into cylinder.
4. Remove valve collet.

Compress the valve spring with valve spring compressor,
attachment 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.
6. Remove valve oil seal with the valve oil seal puller (special ser-
vice tool).
INSTALLATION
1. Apply new engine oil to valve oil seal joint surface and seal lip.
2. Using the valve oil seal drift (special service tool), install valve oil
seals referring to the dimension shown in the figure.
3. Install in the reverse order of removal.
PBIC2388E
JEM153G
JEM165G

EM-214
[YD22DDTi]
CYLINDER HEAD

c. Tighten 180 degrees in numerical order as shown (angle tight-
ening).
d. Loosen completely in reverse order of that shown in the figure.
e. Tighten all bolts in numerical order as shown.
f. Tighten 90 degrees in numerical order as shown (angle tighten-
ing).
g. Tighten another 90 degrees in numerical order as shown (angle
tightening).
CAUTION:

When the angle wrench (special service tool) is not used, paint an alignment mark on the head
of cylinder head bolt and cylinder head surface before tightening. Check the angle with a pro-
tractor.
4. Install glow plug.
CAUTION:

To avoid damage, glow plugs should be removed only when required.

Handle with care to avoid applying shock. When dropped from approx. 10 cm (3.94 in) or higher,
always replace with a new one.

Before installing, remove carbon depositing on mounting hole of glow plug with a reamer.
5. Install in the reverse order of removal.
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.
: 0 N·m (0 kg-m, 0 ft-lb)
:39.2 N·m (4.0 kg-m, 29 ft-lb)
JEM166G
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-216
[YD22DDTi]
CYLINDER HEAD

NOTE:
Refer to the figure for intake and exhaust valve positions.
Intake and exhaust valve driving cams are provided alter-
nately for each camshaft.
5. Remove valve oil seals using the valve oil seal puller (special
service tool).
6. Remove valve spring seats.
7. When removing valve seats must be replaced. Refer to EM-219, "
Valve Seat Replacement" .
8. When removing valve guides must be replaced. Refer to EM-218, "
Valve Guide Replacement" .
ASSEMBLY
1. Install valve guides if removed. Refer to EM-218, "Valve Guide Replacement" .
2. Install valve seats if removed. Refer to EM-219, "
Valve Seat Replacement" .
3. Using the valve oil seal drift (special service tool), install valve oil
seals referring to the dimension shown in the figure.
4. Install valve spring seats.
5. Install valves.

Install larger diameter to intake valve side.

Note that valve layout here is different from that of conven-
tional engine.
6. Install valve spring.
SBIA0196E
JEM153G
JEM165G
SBIA0196E