2001 NISSAN X-TRAIL Chain

EM-40
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TIMING CHAIN
17. Remove timing chain with the following procedure.
a. Push in tensioner plunger. Reinsert a stopper pin into hole on
tensioner body to fix chain tensioner and remove it.
●Use wire of 0.5 mm (0.02 in) in diameter as a stopper pin.
b. Secure hexagonal part of camshaft with a tool such as a span-
ner. Loosen camshaft sprocket mounting bolts and remove the
camshaft sprockets.
CAUTION:
Do not rotate crankshaft or camshaft while timing chain is
removed. It causes interference between valve and piston.
18. Remove chain slack guide, tension guide, chain guide, timing
chain and oil pump drive spacer.
19. Remove timing chain tensioner for balancer unit with the follow-
ing procedure.
a. Lift tensioner lever up, and release ratchet claw for return proof.
b. Push tensioner sleeve in, and hold it.
c. Matching the hole on lever with the one on body, insert a stopper
pin to secure tensioner sleeve.
d. Remove timing chain tensioner for balancer unit.
20. Remove timing chain for balancer unit and crankshaft sprockets.
21. Loosen mounting bolts in reverse order shown in the figure, and
remove balancer unit.
●Use Torx socket (size E14)
CAUTION:
Do not disassemble balancer unit.
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TIMING CHAIN
EM-41
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INSPECTION AFTER REMOVAL
Timing Chain
Check timing chain for cracks or serious wear. If a malfunction is
detected, replace it.
Balancer Unit Mounting Bolt Outer Diameter.
●Measure outer diameters (d1, d2) at the two positions shown in
the figure.
●Measure d2 within the range A.
●If the value difference (d1 – d2) exceeds the limit (a dimension
difference is large), replace it with a new one.
INSTALLATION
NOTE:
●The figure shows the relationship between the mating mark on
each timing chain and that on the corresponding sprocket, with
the components installed.
●Because of parallel manufacture, there are two types of mark
(link colors) for timing chain.
1. Make suer that crankshaft key points straight up.
PBIC0282E
Limit: 0.15 mm (0. 0059in) or more.
PBIC1137E
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EM-42
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TIMING CHAIN
2. Tighten mounting bolt in the numerical order shown in the figure
with the following procedure, and install balancer unit.
CAUTION:
When reusing a mounting bolt, check its outer diameter
before installation, Refer to EM-41, "
INSPECTION AFTER
REMOVAL" .
a. Apply new engine oil to threads and seat surfaces of mounting
bolts.
b. Tighten them to 45.2 to 51.0 N·m (4.6 to 5.2 kg-m, 34 to 37 ft-lb).
c. Turn them another 90 to 95° (Target: 90°).
d. Fully loosen to 0 N·m (0 kg-m, 0 ft-lb).
●Loosen in the reverse order of tightening.
e. Tighten them to 45.2 to 51.0 N·m (4.6 to 5.2 kg-m, 34 to 37 ft-lb).
f. Turn them another 90 to 95° (Target: 90°).
CAUTION:
Check tightening angle with an angle wrench or a protrac-
tor. Do not make judgment by visual check alone.
3. Install crankshaft sprocket and timing chain for balancer unit.
●Make sure that crankshaft sprocket is positioned with mating
marks on block and sprocket meeting at the top.
●Install it by lining up mating marks on each sprocket and tim-
ing chain.
4. Install timing chain tensioner for balancer unit.
NOTE:
Chain guide and tensioner move freely with the caulking 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 the chain guide, and move the 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.
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TIMING CHAIN
EM-43
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5. Install timing chain and related parts.
●Install by lining up mating marks on each sprocket and timing
chain.
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.
CAUTION:
For the above reason, after the mating marks are aligned,
keep them aligned by holding them with a hand.
●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.
●To avoid skipped teeth, do not move crankshaft and camshaft
until front cover is installed.
6. Install front oil seal to front cover.
●Using a drift of 56 mm (2.20 in) dia, press oil seal in until it is
flush with front end surface of front cover.
CAUTION:
Be careful not to cause damage or burr to circumference of
oil seal.
7. Install front cover with the following procedure.
a. Install O-rings to cylinder head and cylinder block.
b. Apply liquid gasket to positions specified in the figure.
Use Genuine Liquid gasket or equivalent.
●Application instruction differs depending on the part.
c. Make sure that mating marks of timing chain and each sprocket
are still aligned. Then install front cover.
CAUTION:
●Do not let air conditioning and power steering piping
interfere with upper part of front cover.
●Be careful not to damage front oil seal by interference
with front end of crankshaft.
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EM-44
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TIMING CHAIN
d. Tighten mounting bolts in the numerical order shown in the fig-
ure.
e. After all bolts are tightened, retighten them to specified torque.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking to
surface for fitting oil pan.
8. Install chain guide between camshaft sprockets.
9. Install intake valve timing control cover with the following procedure.
a. Install intake valve timing control solenoid valves to intake valve timing control cover.
b. Install oil rings to the intake camshaft sprocket insertion points on intake valve timing control backside
cover.
c. Install O-ring to front cover.
d. Apply liquid gasket to the positions in the figure.
Use Genuine Liquid gasket or equivalent.
e. Tighten mounting bolts in the numerical order shown in the fig-
ure.
10. Insert crankshaft pulley by aligning with crankshaft key.
●Tap its center with a plastic hammer to insert.
●Do not tap belt hook.
11. Tighten crankshaft pulley mounting bolt.
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TIMING CHAIN
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●Secure crankshaft pulley with a pulley holder, and tighten the bolt.
●Perform angle tightening with the following procedure.
a. Apply new engine oil to thread and seat surfaces of mounting bolt.
b. Tighten to 37.3 to 47.1 N·m (3.8 to 4.8 kg-m, 28 to 34 ft-lb).
c. put a paint mark on front cover, mating with any one of six easy
to recognize stamp marks on bolt flange.
d. Turn another 60° to 66° [Target: 60°].
●Check vertical mounting angle with movement of one stamp
mark.
12. Install remaining parts in reverse order of removal.
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EM-46
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CAMSHAFT
CAMSHAFT
PFP:13001
Removal and InstallationEBS00LS2
CAUTION:
Apply new engine oil to parts marked in illustration before installation.
REMOVAL
The following procedure describes removing and installing camshaft without removing front cover. If the front
cover is removed or installed, removal of No. 1 camshaft bracket is easier before step 8. Installation is easier
after step 3. Regarding removal and installation of front cover, refer to EM-37, "
TIMING CHAIN" .
1. Release fuel pressure. Refer to EC-775, "
FUEL PRESSURE RELEASE" [QR20DE (WITH EURO-OBD)],
EC-1139, "
FUEL PRESSURE RELEASE" [QR20DE (WITHOUT EURO-OBD)], EC-42, "FUEL PRES-
SURE RELEASE" [QR25DE (WITH EURO-OBD)] or EC-452, "FUEL PRESSURE RELEASE" [QR25DE
(WITHOUT EURO-OBD)].
2. Remove parts listed below.
●Ignition coil; Refer to EM-29, "IGNITION COIL" .
●Rocker cover; Refer to EM-35, "ROCKER COVER" .
3. Remove power steering reservoir tank.
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1. Camshaft bracket 2. Washer 3. Front cover
4. Chain guide 5. Chain tensioner 6. O-ring
7. Spring 8. Chain tensioner plunger 9.Intake valve timing control solenoid
valve
10. Intake valve timing control cover 11. Camshaft sprocket (EXH) 12. Camshaft sprocket (INT)
13. Valve lifter 14. Camshaft (EXH) 15. Camshaft (INT)
16. Camshaft position sensor (PHASE)

CAMSHAFT
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4. Remove Intake valve timing control cover.
a. Loosen bolts in reverse order shown in the figure.
b. Disconnect intake valve timing control solenoid valve harness
connector, and remove intake valve timing control solenoid
valve.
c. Remove the cover using Tool (Seal cutter).
5. Set No. 1 cylinder at TDC on its compression stroke with the fol-
lowing procedure.
a. Open splash cover on RH undercover.
b. Rotate crankshaft pulley clockwise, and align mating marks for
TDC with 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 line up the
mating marks to the positions in the figure.
6. Pull chain guide between camshaft sprockets out through front
cover.
7. Remove camshaft sprockets with the following procedure.
a. Line up the mating marks on camshaft sprockets, and paint an
indelible mating mark on timing chain link plate.
b. Push in tensioner plunger. Insert a stopper pin into hole on ten-
sioner body to fix chain tensioner and remove it.
●Use wire of 0.5 mm (0.02 in) in diameter as a stopper pin.
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