NISSAN X-TRAIL 2001 Service Manual Online

SPARK PLUG
EM-31
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
●Use a wire brush for cleaning, if necessary.
INSTALLATION
Install in the reverse order of removal.
SMA476
Spark plug:
: 19.6 - 29.4 N·m (2.0 - 3.0 kg-m, 15 - 21 ft-lb)

EM-32
[QR]
FUEL INJECTOR AND FUEL TUBE
FUEL INJECTOR AND FUEL TUBE
PFP:16600
Removal and InstallationEBS00KNH
QR20DE
CAUTION:
●Apply new engine oil when installing the parts that specified to do so in the figure.
●Do not remove or disassembly parts unless instructed as shown in the figure.
QR25DE
CAUTION:
●Apply new engine oil when installing the parts that specified to do so in the figure.
KBIA0238E
1. Fuel hose 2. Quick connector cap 3. Sub harness
4. Fuel tube 5. Clip 6. O-ring
7. Fuel injector 8. Insulator
SBIA0247E
1. Fuel hose 2. Quick connector cap 3. Sub harness
4. Fuel tube 5. Clip 6. O-ring
7. Fuel injector 8. Insulator

FUEL INJECTOR AND FUEL TUBE
EM-33
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
●Do not remove or disassembly parts unless instructed as shown in the figure.
REMOVAL
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 air duct, air cleaner case (upper) assembly.
3. Disconnect fuel hose quick connector at fuel tube side.
●Regarding how to disconnect and connect quick connector, Refer to EM-16, "INTAKE MANIFOLD" .
CAUTION:
●Prepare a container of cloth for spilled fuel.
●This operation should be performed, in a place where free from fire.
●While hoses are disconnected seal their openings with vinyl bag or similar material to prevent
foreign material from entering them.
4. Remove intake manifold collector. Refer to EM-16, "
INTAKE MANIFOLD" .
5. Disconnect sub-harness for injector at engine front side, and remove it from bracket.
6. Loosen mounting bolts in the reverse order in the figure, and
remove fuel tube and fuel injector assembly.
7. Remove fuel tube and fuel injector assembly.
●Release clip and remove it.
●Pull fuel injector straight out of fuel tube.
●Be careful not to damage nozzle part.
●Avoid any impact such as a dropping.
●Do not disassemble or adjust it.
INSTALLATION
1. Install O-rings to fuel injector paying attention to the items below.
●Lubricate O-rings by smearing new engine oil.
●Be careful not to scratch it with a tool or fingernails dur-
ing installation. Also be careful not to twist or stretch O-
ring. If O-ring was stretched while it is attached, do no
insert it into fuel tube immediately.
2. Install fuel injector to fuel tube with the following procedure.
●Insert clip into clip mounting groove on fuel injector.
●Insert clip so that projection A of fuel injector matches notch A
of the clip.
●Do not reuse clip. Replace it with a new one.
●Be careful to keep clip from interfering with O-ring. If interfer-
ence occurs, replace O-ring.
3. Insert fuel injector into fuel tube with clip attached.
●Insert it while matching it to the axial center.
●Insert fuel injector so that projection B of fuel injector matches
notch B of the clip.
●Make sure that fuel tube flange is securely fixed in flange fixing groove on clip.
●Make sure that installation is complete by checking that fuel injector does not rotate or come off.
4. Install fuel tube assembly with the following procedure.
a. Insert the tip of each fuel injector into intake manifold.
KBIA0239E
O-ring color
Fuel tube side (Upper side) : Black
Intake manifold side (Lower side) : Green
SBIA0439E

EM-34
[QR]
FUEL INJECTOR AND FUEL TUBE
b. Tighten mounting bolts in two steps in the numerical order
shown in the figure.
5. Install intake manifold collector. Refer to EM-16, "
INTAKE MANI-
FOLD" .
6. Connect fuel hose. Refer to EM-16, "
INTAKE MANIFOLD" .
7. Install all removed parts in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Check connections for fuel leakage.
1. Start the engine, and run it for a few minutes with engine at idle.
2. Stop the engine, and check for fuel leakage both visually and by odor of gasoline.
NOTE:
Use mirrors for checking on invisible points.
CAUTION:
Do not touch the engine immediately after stopped as engine becomes extremely hot. 1st step:
: 9.3 - 10.8 N·m (0.95 - 1.1 kg-m, 0.7 - 0.8 ft-lb)
2nd step:
: 20.6 - 26.5 N·m (2.1 - 2.7 kg-m, 16 - 19 ft-lb)
KBIA0239E

ROCKER COVER
EM-35
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
ROCKER COVERPFP:13264
Removal and InstallationEBS00KNI
REMOVAL
1. Remove PCV hose.
●Remove ignition coil. Refer to EM-29, "IGNITION COIL" .
2. Loosen bolts in reverse order shown in the figure.
SBIA0248E
1. PCV valve 2. Oil filler cap 3. Rocker cover
4. Rocker cover gasket
KBIA0242E

EM-36
[QR]
ROCKER COVER
INSTALLATION
1. Apply liquid gasket to joint part of cylinder head and camshaft
bracket following the below steps.
a. Refer to illustration “a” to apply liquid gasket to joint part of No.1
camshaft bracket and cylinder head.
b. Refer to illustration “b” to apply liquid gasket in 90° to illustration
“a”.
Use Genuine Liquid gasket or equivalent.
2. Install rocker cover.
●Check if rocker cover gasket is dropped from installation
groove of rocker cover.
3. Tighten bolts two steps separately in order numbers in illustra-
tion.
4. Install in the reverse order of removal after this step.
SBIA0250E
1st step:
: 0.98 - 2.9 N·m (0.1 - 0.3 kg-m, 9 - 25 in-lb)
2nd step:
: 7.4 - 9.3 N·m (0.75 - 0.95 kg-m, 66 - 82 in-lb)
KBIA0242E

TIMING CHAIN
EM-37
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
TIMING CHAINPFP:13028
Removal and InstallationEBS00KNL
CAUTION:
Apply new engine oil to parts marked in illustration before installation.
PBIC1261E
1. O-ring 2. Camshaft sprocket (INT) 3. Camshaft sprocket (EXH)
4. Chain tensioner 5. Spring 6. Chain tensioner plunger
7. Timing chain slack guide 8. Timing chain 9. Front cover
10. Chain guide 11.Intake valve timing control solenoid
valve12. Intake valve timing control cover
13. Engine mounting bracket 14. Crankshaft pulley bolt 15. Crankshaft pulley
16. Front oil seal 17. Balancer unit timing chain tensioner 18. Oil pump drive spacer
19. Crankshaft sprocket 20. Timing chain tension guide 21. Balancer unit timing chain
22. Balancer unit 23. Oil rings

EM-38
[QR]
TIMING CHAIN
REMOVAL
1. Remove the parts listed below.
●Engine hood
●Engine undercover
●PCV hose
●Ignition coil; Refer to EM-29, "IGNITION COIL" .
●Rocker cover; Refer to EM-35, "ROCKER COVER" .
●Engine coolant reservoir tank
●Drive belt; Refer to EM-12, "REMOVAL" .
●Alternator
●Drive belt auto-tensioner; Refer to EM-13, "REMOVAL" .
●Exhaust front tube; Refer to EX-2, "Removal and Installation" .
2. Remove A/C compressor from engine. Temporarily secure A/C compressor to vehicle side with a rope to
avoid putting a load on them.
3. Remove bracket mounting bolts for fixing A/C piping on right strut housing and exhaust manifold cover.
Doing so simplifies moving.
4. Move power steering pump with piping connected, and secure it to vehicle side temporarily.
5. Pull power steering reservoir tank out of brackets to move power steering piping.
CAUTION:
To avoid power steering fluid leakage, temporarily fix reservoir tank vertically.
6. Suspend engine with a hoist, and support the engine posture.
For installation of engine slingers, refer to EM-69, "
ENGINE ASSEMBLY" .
7. Remove RH engine mount insulator.
8. Remove center member and rear engine mounting bracket.
9. Drain engine oil.
10. Remove oil pan upper and lower, and oil strainer. Refer to EM-26, "
OIL PAN AND OIL STRAINER" .
11. Remove intake valve timing control cover.
a. Loosen bolts in reverse order shown in the figure.
b. Remove the cover using Tool (Seal cutter).
CAUTION:
Be careful not to damage mounting surface.
12. Pull chain guide between camshaft sprockets out through front
cover.
13. Set No. 1 cylinder at TDC on its compression stroke with the fol-
lowing procedure.
a. Rotate crankshaft pulley clockwise and align mating marks to
timid indicator on front cover.
KBIA0085E
KBIA0190E

TIMING CHAIN
EM-39
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
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 line up mating
marks to the positions in the figure.
14. Remove crankshaft pulley with the following procedure.
a. Fix crankshaft pulley with a pulley holder, loosen crankshaft pul-
ley mounting bolts, and pull the pulley out by 10 mm (0.3937 in).
b. Attach a pulley puller in the M 6 (0.24 in dia.) thread hole on
crankshaft pulley, and remove crankshaft pulley.
15. Remove front cover with following procedure.
a. Loosen mounting bolts in the reverse order shown in the figure,
and remove them.
b. Using a seal cutter, remove front cover.
CAUTION:
Be careful not to damage mounting surface.
16. If front oil seal needs to be replaced, lift it with a screwdriver, and
remove it.
KBIA0115E
KBIA0077E
KBIA0078E
KBIA0083E

EM-40
[QR]
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.
KBIA0048E
KBIA0049E
KBIA0121E
KBIA0122E