2003 NISSAN X-TRAIL lock

EM-46
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TIMING CHAIN

a. Rotate crankshaft pulley clockwise and align TDC mark to timing
indicator on front cover.
b. 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.
15. Remove crankshaft pulley with the following procedure:
a. Fix crankshaft pulley with a pulley holder (commercial service
tool), loosen crankshaft pulley bolt, and locate bolt seating sur-
face at 10 mm (0.39 in) from its original position.
b. Attach a pulley puller (special service tool) in the M 6 thread hole
on crankshaft pulley, and remove crankshaft pulley.
16. Remove front cover with the following procedure:
KBIA0190E
PBIC2351E
PBIC2434E
PBIC2413E

TIMING CHAIN
EM-49
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INSTALLATION
NOTE:
The figure shows the relationship between the mating mark on each
timing chain and that on the corresponding sprocket, with the com-
ponents installed.
1. Make sure that crankshaft key points straight up.
2. Tighten mounting bolts in numerical order as shown in figure
with the following procedure, and install balancer unit.
CAUTION:
If mounting bolts are re-used, check their outer diameter
before installation. Refer to EM-48, "
INSPECTION AFTER
REMOVAL" .
a. Apply new engine oil to threads and seat surfaces of mounting
bolts.
b. Tighten all bolts.
c. Turn all bolts 90 degrees clockwise (angle tightening).
d. Completely loosen.
CAUTION:
In this step, loosen bolts in reverse order as shown in the
figure.
e. Tighten all bolts.
f. Turn them another 90 degrees clockwise (angle tightening).
CAUTION:
Check tightening angle with an angle wrench (special service tool) or a protractor. Do not make
judgment by visual check alone.
PBIC2182E
: 48.1 N·m (4.9 kg-m, 35 ft-lb)KBIA0122E
: 0 N·m (0 kg-m, 0 ft-lb)
: 48.1 N·m (4.9 kg-m, 35 ft-lb)
KBIA0080E

EM-50
[QR]
TIMING CHAIN

3. Install crankshaft sprocket and balancer unit timing chain.

Make sure that crankshaft sprocket is positioned with mating
marks on cylinder block and crankshaft sprocket meeting at
the top.

Install it by aligning mating marks on each sprocket and bal-
ancer unit timing chain.
4. Install balancer unit timing chain tensioner.
NOTE:
Chain guide and tensioner move freely with the staking pin as
the axle. Therefore, bolt hole position of the three points could
be changed during removal. If points change, temporarily fix the
two mounting bolts on chain guide, and move tensioner to mate
the bolt holes.

Be careful not to let mating marks of each sprocket and timing
chain slip.

After installation, make sure the mating marks have not
slipped, then remove stopper pin and release tensioner
sleeve.
5. Install timing chain and related parts.

Install by aligning mating marks on each sprocket and timing
chain.

Before and after installing chain tensioner, check again to
make sure that mating marks have not slipped.

After installing chain tensioner, remove stopper pin, and make
sure that tensioner moves freely.
CAUTION:

For the following note, after the mating marks are
aligned, keep them aligned by holding them with a
hand.

To avoid skipped teeth, do not rotate crankshaft and
camshaft until front cover is installed.
NOTE:
Before installing chain tensioner, it is possible to change the
position of mating mark on timing chain for that on each
sprocket for alignment.
6. Install front oil seal to front cover. Refer to EM-64, "
Removal and Installation of Front Oil Seal" .
7. Install front cover with the following procedure:
a. Install O-rings to cylinder head and cylinder block.
PBIC2183E
KBIA0124E
PBIC2182E

EM-52
[QR]
TIMING CHAIN

d. Apply a continuous bead of liquid gasket with a tube presser
(special service tool: WS39930000) to intake valve timing con-
trol cover as shown in the figure.
Use Genuine Liquid Gasket or equivalent.
e. Tighten mounting bolts in numerical order as shown in the fig-
ure.
10. Insert crankshaft pulley by aligning with crankshaft key.

When inserting crankshaft pulley with a plastic hammer, tap on its center portion (not circumference).
CAUTION:
Install protecting front oil seal lip section from any damage.
11. Tighten crankshaft pulley bolt.

Secure crankshaft pulley with a pulley holder (commercial service tool), and tighten crankshaft pulley
bolt.

Perform angle tightening with the following procedure:
a. Apply new engine oil to thread and seat surfaces of crankshaft pulley bolt.
b. Tighten crankshaft pulley bolt.
c. Put a paint mark on crankshaft pulley, mating with any one of six
easy to recognize angle marks on bolt flange.
d. Turn another 60 degrees clockwise (angle tightening).

Check the tightening angle with movement of one angle mark.
12. Install all removed parts in the reverse order of removal.
SBIA0260E
KBIA0085E
: 42.1 N·m (4.3 kg-m, 31 ft-lb)
SEM751G

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

CAMSHAFT
EM-61
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e. Tighten mounting bolts in numerical order as shown in the fig-
ure.
10. Inspect and adjust valve clearance. Refer to EM-61, "
Valve Clearance" .
11. Install in the reverse order of removal after this step.
Va l v e C l e a r a n c eEBS00LS3
INSPECTION
Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1. Warm up engine. Then stop it.
2. Open splash guard on RH undercover.
3. Remove rocker cover. Refer to EM-42, "
ROCKER COVER" .
4. Rotate crankshaft pulley clockwise and align TDC mark to timing
indicator on front cover.
5. At the same time, make sure that both intake and exhaust cam
noses of No. 1 cylinder face outside as shown in the figure.

If they do not face outside, rotate crankshaft pulley once more
and align as shown in the figure.
6. By referring to the figure, measure the valve clearances at loca-
tions marked “X” as shown in the table below (locations indi-
cated with black arrow in figure) with a feeler gauge.

No. 1 cylinder compression TDC.
KBIA0085E
KBIA0190E
KBIA0400J
Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
No. 1 cylinder at
TDCINT X X
EXH X X
SBIA0261E

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