2003 NISSAN X-TRAIL chain

EM-54
[QR]
CAMSHAFT

CAUTION:
To avoid power steering fluid leakage, temporarily fix power steering reservoir tank vertically.
4. Remove intake valve timing control cover with the following procedure:
a. Disconnect intake valve timing control solenoid valve harness connector.
b. Remove intake valve timing control solenoid valve, if necessary.
c. Disconnect ground cables.
d. Loosen bolts in reverse order as shown in the figure.
e . U s e a s e a l c u t t e r ( s p e c i a l s e r v i c e t o o l : K V 1 0 1111 0 0 ) o r e q u i v a -
lent tool to cut liquid gasket for removal.
5. Pull chain guide between camshaft sprockets out through front cover.
6. Set No. 1 cylinder at TDC on its compression stroke with the following procedure:
a. Open splash guard on RH undercover.
b. Rotate crankshaft pulley clockwise and align TDC mark to timing
indicator on front cover.
c. At the same time, make sure that the mating marks on camshaft
sprockets are located as shown in the figure.

If not, rotate crankshaft pulley one more turn to align mating
marks to the positions in the figure.
7. Remove camshaft sprockets with the following procedure:
a. Line up the mating marks on camshaft sprockets, and paint indelible mating marks on timing chain link
plate.
KBIA0085E
KBIA0190E
PBIC2351E

CAMSHAFT
EM-55
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b. Push in chain tensioner plunger. Insert a stopper pin into hole on
chain tensioner body to secure chain tensioner plunger and
remove chain tensioner.
NOTE:
Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a
stopper pin.
c. Secure hexagonal part of camshaft with a wrench. Loosen cam-
shaft sprocket mounting bolts and remove camshaft sprockets.
CAUTION:
Do not rotate crankshaft or camshaft while timing chain is
removed. It causes interference between valve and piston.
NOTE:
Chain tension holding work is not necessary. Crankshaft
sprocket and timing chain do not disconnect structurally while
front cover is attached.
8. Remove camshaft position sensor (PHASE) from cylinder head back side.
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensor in a location where it is exposed to magnetism.
9. Loosen mounting bolts in reverse order as shown in the figure,
and remove camshaft brackets and camshafts.

Remove camshaft bracket (No. 1) by slightly tapping it with a
plastic hammer.
10. Remove valve lifters.

Identify installation positions, and store them without mixing them up.
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on a precise flat table, and support No. 2 and 5 jour-
nal of camshaft.
2. Set dial gauge vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the
camshaft runout on dial gauge. (Total indicator reading)
4. If out of the standard, replace camshaft.
KBIA0048E
KBIA0049E
SBIA0255E
Standard: Less than 0.02 mm (0.0008 in).
PBIC2499E

EM-60
[QR]
CAMSHAFT

4. Tighten mounting bolts of camshaft brackets in the following
steps, in numerical order as shown in the figure.
a. Tighten No. 9 to 11 in numerical order.
b. Tighten No. 1 to 8 in numerical order.
c. Tighten all bolts in numerical order.
d. Tighten all bolts in numerical order.
CAUTION:
After tightening mounting bolts of camshaft brackets, be sure to wipe off excessive liquid gasket
from the parts listed below.

Mating surface of rocker cover.

Mating surface of front cover. (When installed without front cover)
5. Install camshaft position sensor (PHASE).
6. Install camshaft sprockets.

Install them by aligning the mating marks on each camshaft
sprocket with the ones painted on timing chain link plate dur-
ing removal.
CAUTION:

Aligned mating marks could slip. Therefore, after
matching them, hold the timing chain in place by hand.

Before and after installing chain tensioner, make sure
again that mating marks have not slipped.
NOTE:
Before installation of chain tensioner, it is possible to re-match
the marks on timing chain with the ones on each sprocket.
7. Install chain tensioner.
CAUTION:
After installation, pull the stopper pin off completely, and make sure that chain tensioner plunger
is released.
8. Install chain guide.
9. Install intake valve timing control cover with the following procedure:
a. Install intake valve timing control solenoid valve to intake valve timing control cover if removed.
b. Install oil rings to the intake camshaft sprocket insertion points on backside of intake valve timing control
cover.
c. Install O-ring to front cover.
d. Apply liquid gasket with a tube presser (special service tool:
WS39930000) to intake valve timing control cover as shown in
the figure.
Use Genuine Liquid Gasket or equivalent. : 2.0 N·m (0.2 kg-m, 1 ft-lb)
: 2.0 N·m (0.2 kg-m, 1 ft-lb)
: 5.9 N·m (0.6 kg-m, 4 ft-lb)
: 10.4 N·m (1.1 kg-m, 8 ft-lb)
SBIA0255E
PBIC2351E
SBIA0260E

EM-64
[QR]
OIL SEAL

OIL SEALPFP:12279
Removal and Installation of Valve Oil SealEBS00KNM
REMOVAL
1. Remove camshafts. Refer to EM-53, "CAMSHAFT" .
2. Remove valve lifters. Refer to EM-53, "
CAMSHAFT" .
3. Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve
from dropping into cylinder.
CAUTION:
When rotating crankshaft, be careful to avoid scarring front cover with timing chain.
4. Remove valve collet.

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.
CAUTION:
Do not remove valve spring seat from valve spring.
6. Remove valve oil seal with a valve oil seal puller (special service
tool).
INSTALLATION
1. Apply new engine oil to valve oil seal joint surface and seal lip.
2. Press in valve oil seal to the height “H” shown in the figure with a
valve oil seal drift (special service tool).
NOTE:
Dimension “H” is height that measured before installing valve
spring (with valve spring seat).
3. Install in the reverse order of removal after this step.
Removal and Installation of Front Oil SealEBS00KNN
REMOVAL
1. Remove the following parts.

RH undercover
PBIC1791E
SEM093F
Height “H” : 11.8 - 12.4 mm (0.465 - 0.488 in)
KBIA1999J

OIL SEAL
EM-65
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Drive belt; Refer to EM-13, "DRIVE BELTS" .

Crankshaft pulley; Refer to EM-44, "TIMING CHAIN" .
2. Remove front oil seal with a suitable tool.
CAUTION:
Be careful not to damage front cover 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.

Press-fit front oil seal until it is flush with front end surface of
front cover with a suitable tool.
CAUTION:

Be careful not to damage front cover and crankshaft.

Press-fit oil seal straight to avoid causing burrs or tilt-
ing.
3. Install in the reverse order of removal after this step.
Removal and Installation of Rear Oil SealEBS00KNO
REMOVAL
1. Remove transaxle assembly. Refer to MT-17, "TRANSAXLE ASSEMBLY" (M/T models) or AT- 4 1 3 ,
"REMOVAL AND INSTALLATION" (A/T models).
2. Remove drive plate (A/T models) or flywheel (M/T models). Refer to EM-82, "
CYLINDER BLOCK" .
3. 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.
SEM829E
SEM715A
SBIA0266E

EM-68
[QR]
CYLINDER HEAD

–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.

If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, gaskets are leaking. In such a case, replace cylinder head gas-
kets.
7. After inspection is completed, install removed parts.
8. Start engine, and confirm that engine runs smoothly.
9. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-73, "
TROUBLE DIAGNOSIS" (WITH
EURO-OBD) or EC-520, "
TROUBLE DIAGNOSIS" (WITHOUT EURO-OBD).
Removal and InstallationEBS00KNQ
REMOVAL
1. Release fuel pressure. Refer to EC-48, "FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-510,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
2. Drain engine coolant and engine oil. Refer to CO-9, "
Changing Engine Coolant" and LU-8, "Changing
Engine Oil" .
3. Remove the following components and related parts.

Exhaust manifold and three way catalyst assembly; Refer to EM-23, "EXHAUST MANIFOLD AND
THREE WAY CATALYST" .

Intake manifold and fuel tube assembly (QR20DE); Refer to EM-17, "Removal and Installation
(QR20DE)" .

Intake manifold collector, intake manifold and fuel tube assembly (QR25DE); Refer to EM-20, "Removal
and Installation (QR25DE)" .

Water control valve and housing (water outlet); Refer to CO-22, "THERMOSTAT AND WATER CON-
TROL VALVE" .
NOTE:
Can be removed and installed even when assembled with cylinder head.
4. Remove front cover and timing chain. Refer to EM-44, "
TIMING CHAIN" .
5. Remove camshafts. Refer to EM-53, "
CAMSHAFT" .
6. Securely support bottom of cylinder block with a jack or equivalent tool, and release the hoist that was
supporting it.
1. Cylinder head assembly 2. Cylinder head gasket 3. Cylinder head bolt
PBIC2185E

EM-120
[QR]
SERVICE DATA AND SPECIFICATIONS (SDS)

Oil strainer M6 bolt
8.8 (0.90, 78) *2
M8 bolt 21.6 (2.2, 16)
Ignition coil
6.4 (0.65, 57) *
2
Spark plug24.5 (2.5, 18)
*1 Fuel tube1) 10.1 (1.0, 7)
2) 23.6 (2.4, 17)
*1 Rocker cover 1)
2.0 (0.20, 18) *
2
2)
8.3 (0.85, 73) *2
PCV valve
2.5 (0.26, 22) *2
Intake valve timing control solenoid valve
6.4 (0.65, 57) *2
*1 Intake valve timing control cover 12.8 (1.3, 9)
Camshaft position sensor (PHASE)
6.4 (0.65, 57) *
2
Camshaft sprockets (Intake and Exhaust) 142 (14, 105)
Chain tensioner
7.0 (0.71, 62) *
2
*1 Camshaft bracket 1) 2.0 (0.2, 1)
2) 5.9 (0.6, 4)
3) 10.4 (1.1, 8)
Crankshaft pulley 1) 42.1 (4.3, 31)
2) 60° (Angle tightening)
*1 Front cover 12.8 (1.3, 9)
Timing chain slack guide 16.7 (1.7, 12)
Timing chain tension guide 16.7 (1.7, 12)
Balancer unit timing chain tensioner
7.0 (0.71, 62) *
2
*1 Balancer unit 1) 48.1 (4.9, 35)
2) 90° (Angle tightening)
3) 0 (0, 0)
4) 48.1 (4.9, 35)
5) 90° (Angle tightening)
*1 Cylinder head 1) 5.0 (0.51, 4)
2) 60° (Angle tightening)
3) 0 (0.0, 0)
3) 39.2 (4.0, 29)
4) 75° (Angle tightening)
5) 75° (Angle tightening)
Flywheel (M/T)108 (11, 80)
Drive plate (A/T)108 (11, 80)
Connecting rod bearing cap 1) 19.6 (2.0, 14)
2) 90° (Angle tightening)
*1 Lower cylinder block M8 bolt 1) 25.1 (2.6, 19)
M10 bolt 2) 39.2 (4.0, 29)
M10 bolt 3) 60° (Angle tightening)
Signal plate13.0 (1.3, 10)
Water drain plug
9.8 (1.0, 87) *
2

PREPARATION
EM-125
[YD22DDTi]
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KV101056S0
Ring gear stopper
1. KV10105630
Adapter
2. KV10105610
PlatePreventing crankshaft from rotating
a: 3 (0.12)
b: 6.4 (0.252)
c: 2.8 (0.110)
d: 6.6 (0.260)
e: 107 (4.21)
f: 14 (0.55)
g: 20 (0.79)
h: 14 (0.55) dia.
Unit: mm (in)
KV101151S0
Lifter stopper set
1. KV10115110
Camshaft pliers
2. KV10115120
Lifter stopperChanging adjusting shim
KV10116200
Valve spring compressor
1. KV10115900
Attachment
2. KV10109220
AdapterDisassembling and assembling valve
mechanism
Part (1) is a component of KV10116200, but
Part (2) is not so.
ST16610001
Pilot bushing pullerRemoving crankshaft pilot bush
KV10111100
Seal cutterRemoving steel oil pan and rear chain case,
etc.
WS39930000
Tube presserPressing the tube of liquid gasket
KV10112100
Angle wrenchTightening bolts for bearing cap, cylinder
head, etc. Tool number
Tool nameDescription
NT617
NT041
PBIC1650E
NT045
NT046
NT052
NT014