NISSAN X-TRAIL 2005 Service Repair Manual

CAMSHAFT
EM-187
[YD22DDTi]
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Measure the valve clearance using the feeler gauge when
engine is cool (at normal temperature).
Valve clearance:
Unit: mm (in)
*: Reference data approximately 80°C (176°F)
8. Set the No. 4 cylinder at TDC by rotating the crankshaft clockwise once. (360 degrees)
9. While referring to the figure, measure the valve clearance
marked in the table below.
10. If the valve clearance is outside the specification, adjust as follows.
ADJUSTMENTS

Remove adjusting shim for parts which are outside the specified valve clearance.
1. Extract engine oil on the upper side of the cylinder head (for the air blowing in step 6).
2. Rotate crankshaft to face the camshaft for adjusting shims that
are to be removed upward.
SBIA0181E
Item Cold Hot* (Reference data)
Intake 0.24 -0.32 (0.0094 - 0.0126) 0.274 - 0.386 (0.0108 - 0.0152)
Exhaust 0.26 - 0.34 (0.0102 - 0.0134) 0.308 - 0.432 (0.0121 - 0.0170)
Measuring pointNo. 1No. 2No. 3No. 4
INT EXH INT EXH INT EXH INT EXH
When the No. 4
cylinder is in the
TDCXX XX
SBIA0182E
SBIA0183E

EM-188
[YD22DDTi]
CAMSHAFT

3. Grip camshaft with the camshaft pliers (special service tool),
then using camshaft as a support point, push adjusting shim
downward to compress valve spring.
CAUTION:
Do not damage camshaft, cylinder head and the outer cir-
cumference of valve lifter.
4. With valve spring in a compressed state, remove the camshaft
pliers (special service tool) by securely setting the outer circum-
ference of the valve lifter with the end of the lifter stopper (spe-
cial service tool).

Hold the lifter stopper by hand until the shim is removed.
CAUTION:
Do not retrieve the camshaft pliers forcefully, as cam-
shaft will be damaged.
5. Move the round hole of adjusting shim to the front with the very
thin screwdriver or like that.

When adjusting shim on valve lifter will not rotate smoothly,
restart from step 3 to release the end of the lifter stopper (spe-
cial service tool) from touching adjusting shim.
6. Remove adjusting shim from valve lifter by blowing air through
the round hole of the adjusting shim with the air gun.
CAUTION:
To prevent any remaining engine oil from being blown
around, thoroughly wipe the area clean and wear protective
goggles.
7. Remove adjusting shim by using the magnet hand.
8. Measure the thickness of adjusting shim using the micrometer.

Measure near the center of the shim (the part that touches
camshaft).
PBIC2321E
PBIC2322E
PBIC2323E
PBIC2324E
FEM032

CAMSHAFT
EM-189
[YD22DDTi]
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9. Select the new adjusting shim from the following methods.

New adjusting shims have the thickness stamped on the rear
side.

Shims are available in 33 size from 2.10 mm (0.0827 in) to
2.74 mm (0.1079 in), in steps of 0.02 mm (0.0008 in).
10. Fit the selected adjusting shim to valve lifter.
CAUTION:
Place the stamped side of adjusting shim to valve lifter.
11. Compress valve spring using the camshaft pliers (special service tool: KV10115110) and remove the lifter
stopper (special service tool).
12. Rotate crankshaft 2 to 3 turns by hand.
13. Confirm that the valve clearance is within the specification. Refer to EM-185, "
INSPECTION" .
14. Install remaining parts in the reverse order of removal. Refer to EM-184, "
INSTALLATION" .
15. Warm up the engine, and check for unusual noise and vibration.Calculation method of the adjusting shim thickness:
R = Thickness of removed shim
N = Thickness of new shim
M = Measured valve clearance
Intake
N = R + [M - 0.28 mm (0.0010 in)]
Exhaust
N = R + [M - 0.30 mm (0.0118 in)]
Stamped mark Shim thickness mm (in)
2.10
2.12
·
·
·
2.74 2.10 (0.0827)
2.12 (0.0835)
·
·
·
2.74 (0.1079)
JEM184G
PBIC2325E

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

OIL SEAL
EM-191
[YD22DDTi]
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Removal and Installation of Front Oil SealEBS01FBN
REMOVAL
1. Remove the following parts.

RH engine undercover

Drive belt; Refer to EM-140, "DRIVE BELTS" .

Crankshaft pulley; Refer to EM-198, "PRIMARY TIMING CHAIN" .
2. Remove front oil seal with a suitable tool.
CAUTION:
Be careful not to damage oil pump housing and crankshaft.
INSTALLATION
1. Apply new engine oil to new front oil seal joint surface and seal lip.
2. Install front oil seal so that each seal lip is oriented as shown in
the figure.

Using the suitable drift [62 mm (2.44 in) dia.], force fit the seal
until it hits the bottom.
CAUTION:
Do not touch lips of oil seal. Make sure seal surfaces are
free of foreign materials.
3. Install in the reverse order of removal.
AEM385
SEM715A
JEM142G

EM-192
[YD22DDTi]
OIL SEAL

Removal and Installation of Rear Oil SealEBS01FBO
REMOVAL
1. Remove transaxle and transfer assembly. Refer to MT-19, "Removal and Installation" and TF-57,
"Removal and Installation"
2. Remove clutch cover and disk. Refer to CL-16, "CLUTCH DISC, CLUTCH COVER AND FLYWHEEL" .
3. Remove flywheel. Refer to EM-231, "
DISASSEMBLY" .
4. Remove rear oil seal with a suitable tool.
CAUTION:
Be careful not to damage crankshaft and cylinder block.
INSTALLATION
1. Apply new engine oil to new rear oil seal joint surface and seal lip.
2. Install rear oil seal so that each seal lip is oriented as shown in
the figure.

Press in rear oil seal to the position as shown in the figure.

Using the drift [105 mm (4.13 in) dia.], press fit so that the
dimension is as specified in the figure.

Avoid inclined fitting. Force fit perpendicularly.
3. Install in the reverse order of removal after this step.
SEM715A
JEM232G

SECONDARY TIMING CHAIN
EM-193
[YD22DDTi]
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SECONDARY TIMING CHAINPFP:13028
Removal and InstallationEBS00LRT
CAUTION:

After removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike
piston heads.

When installing camshafts, chain tensioners, oil seals, or other sliding parts, lubricate contacting
surfaces with new engine oil.
REMOVAL

For preparative work for removing/installing secondary timing chain to remove/install fuel pump, refer to
EM-171, "
FUEL PUMP" .

To prepare for removing/installing secondary timing chain to remove/install camshaft, refer to EM-180,
"Removal and Installation" .
1. Remove engine coolant reservoir tank. Refer to CO-35, "
RADIATOR" .
2. Remove RH engine mounting insulator and bracket. Refer to EM-222, "
ENGINE ASSEMBLY" .
3. Pull power steering reservoir tank out of brackets to move power steering piping. Refer to PS-37,
"HYDRAULIC LINE" .
CAUTION:
To avoid removing power steering reservoir tank out of brackets, move it with power steering pip-
ing aside.
4. Remove front chain case.
1. Chain tensioner 2. Spring 3. Plunger
4. Slack guide 5. Front chain case 6. Rubber washer
7. Tension guide 8. Gasket 9. Secondary timing chain
PBIC2326E

EM-194
[YD22DDTi]
SECONDARY TIMING CHAIN


Loosen fixing bolts in reverse order of that shown in the figure
and remove them.

Remove No. 6, 10 and 11 bolts with the rubber washer as
space is limited for pulling them out.
CAUTION:

While front chain case is removed, cover openings to
prevent entry of foreign material into engine.

Do not remove two mass dampers on the back of
cover.
5. Set the No. 1 piston to TDC on its compression stroke.

Turn crankshaft pulley clockwise so that the alignment mark
(punched mark) on each camshaft sprocket is positioned as
shown in the figure.

No position indicator is provided on crankshaft pulley.

When installing, color coded links on secondary timing
chain can be used as alignment marks. Marking may not
be necessary for removal; however, make alignment
marks as required because the alignment mark on fuel
pump sprocket may not be easy to see.
6. Remove chain tensioner as follows:
a. Push the plunger of chain tensioner and keep it pressed with a
push pin.
JEM121G
SBIA0189E
SEM515G
JEM124G

SECONDARY TIMING CHAIN
EM-195
[YD22DDTi]
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b. Using the hexagon wrench (special service tool), remove bolts
to remove chain tensioner.
7. Remove slack guide.

Using the hexagon wrench (special service tool), remove bolt
to remove slack guide.
8. Remove tension guide.
9. Remove secondary timing chain.

Timing chain alone can be removed without removing sprock-
ets.
INSPECTION AFTER REMOVAL
Timing Chain
Check for cracks and excessive wear at roller links. Replace
timing chain if necessary.
INSTALLATION
1. Install secondary timing chain.
SBIA0227E
SBIA0228E
JEM127G
SEM984C

EM-196
[YD22DDTi]
SECONDARY TIMING CHAIN


When installing, match the alignment marks on sprockets with
color coded alignment marks (colored links) on the timing
chain.
2. Install tension guide.

The upper bolt has a longer shank than the lower bolt.
3. Using the hexagon wrench (special service tool), install slack
guide.
4. Install chain tensioner.
a. Push the plunger of chain tensioner. While holding it with a push
pin, install chain tensioner.
b. Using the hexagon wrench (special service tool), tighten bolts.
c. Pull out the push pin, etc. holding the plunger.

Make sure again that the alignment marks on the sprock-
ets and the colored alignment marks on the timing chain
are aligned.
5. Install front chain case as follows:
PBIC2596E
SBIA0228E
SBIA0227E