NISSAN ALMERA N16 2003 Electronic Owners Manual

DRIVE BELTS
EM-13
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Removal and InstallationEBS00LQ0
REMOVAL
●Loosen each belt while referring to “Tension Adjustment”, and remove them one by one starting from the
one in front.
INSTALLATION
1. Install belts to pulley in reverse order of removal.
2. Adjust belt tension.
CAUTION:
●When checking belt tension immediately after installation, first, adjust to specified value. Then,
after turning crankshaft more than two turns, re-adjust to specified value to avoid variation in
deflection between pulleys.
●Tighten idler pulley lock nut by hand and measure tension without looseness.
3. Tighten each adjusting bolt and nut to the specified torque.
4. Make sure that tension of each belt is within the standard.

EM-14
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AIR CLEANER AND AIR DUCT
AIR CLEANER AND AIR DUCT
PFP:16500
Removal and InstallationEBS00LQ1
REMOVAL
1. Remove air cleaner case assembly, air duct and resonator.
●Add marks as necessary for easier installation.
2. Remove harness connector from mass air flow sensor.
3. Remove mass air flow sensor.
CAUTION:
Handle mass air flow sensor with following cares.
●Do not shock it.
●Do not disassembly it.
●Do not touch its sensor.
●Do not deform mass air flow sensor's wire mesh.
4. Remove left fender protector and resonator.
INSTALLATION
1. Attach each joint aligning marks put at removal. Screw clamps firmly.
2. Install in the reverse order of removal.
PBIC0533E
1. Air cleaner case (upper) 2. Resonator 3. Air duct
4. Mass air flow sensor 5. O-ring 6. Air cleaner case (lower)
7. Grommet 8. Air cleaner element 9. Bracket

AIR CLEANER AND AIR DUCT
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Changing Air Cleaner ElementEBS00LQ2
The viscous paper type filter does not need cleaning between
renewals.
SMA373C

EM-16
[QG]
INTAKE MANIFOLD
INTAKE MANIFOLD
PFP:14003
Removal and InstallationEBS00LQ3
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the coolant when the engine is hot.
1. Release fuel pressure.
Refer to EC-34, "
FUEL PRESSURE RELEASE" (WITH EURO-OBD), EC-427, "FUEL PRESSURE
RELEASE" (WITHOUT EURO-OBD).
2. Remove air duct and air cleaner case.
Refer to EM-14, "
Removal and Installation" .
3. Disconnect harness on engine top surface, and move it aside.
4. Disconnect fuel injector/fuel tube assembly from intake manifold, and move it aside.
●It is not necessary to disconnect fuel hose.
5. Disconnect the following vacuum hoses.
6. Disconnect blow-by hose (between intake manifold collector and rocker cover).
KBIA1363E
1. Electric throttle control actuator 2. Gasket 3. Intake manifold collector
4.EVAP canister purge volume control
solenoid valve5. Vacuum hose 6. Vacuum hose
7. Hose clamp 8. Intake manifold support (front) 9. Harness bracket
10. Vacuum hose 11. Intake manifold 12. PCV hose
13. Gasket 14. Vacuum hose 15. Gasket
16. Intake manifold support (rear) 17. Harness bracket 18. Intake manifold support (engine rear)
19. Grounding wire

INTAKE MANIFOLD
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7. Loosen mounting bolts in reverse order shown in figure to
remove electric throttle control actuator.
CAUTION:
●Do not shock it.
●Do not disassembly and adjusting.
NOTE:
Remove intake manifold collector and electronic throttle control
as a single assembly, then remove electronic throttle control
itself.
8. Remove bolt on cylinder head side of intake manifold collector.
9. Loosen intake manifold collector nuts and bolts in reverse of the
order shown in the figure.
●Do not remove intake manifold collector at this stage.
10. Move harness, which is fixed on intake manifold support, with bracket.
11. Remove intake manifold supports (rear, front, engine rear).
12. Loosen nuts and bolts in reverse order shown in the figure, and
remove intake manifold from cylinder head.
13. Disconnect intake manifold collector from intake manifold, and
pull out between engine and body.
PBIC0534E
KBIA1365E
KBIA1366E
PBIC0535E

EM-18
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INTAKE MANIFOLD
INSPECTION AFTER REMOVAL
Surface Distortion
●Using straightedge and feeler gauge, inspect surface distortion
of intake manifold collector and intake manifold surface.
INSTALLATION
●Install in the reverse order of removal paying attention to the following.
Tightening Intake Manifold
●Temporarily attach before installing intake manifold collector.
●Tighten in numerical order as shown in the figure.
Tightening Intake Manifold Collector
●Temporarily attach before installing intake manifold.
●Tighten in numerical order as shown in the figure.
Installation of Electric Throttle Control Actuator
●Tighten mounting bolts for electric throttle control actuator in
numerical order shown in figure.
CAUTION:
When electric throttle control actuator is replaced, perform
idle air volume learning.
●Refer to BASIC SERVICE PROCEDURE, EC-31, "Idle Air Vol-
ume Learning" (WITH EURO-OBD), EC-425, "Idle Air Volume
Learning" (WITHOUT EURO-OBD). Limit : 0.1 mm (0.004 in)
PBIC0536E
PBIC0535E
KBIA1366E
: 17.7 - 21.6 N·m (1.8 - 2.2 kg-m, 13 - 15 ft-lb)
PBIC0534E

EXHAUST MANIFOLD AND CATALYTIC CONVERTER
EM-19
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EXHAUST MANIFOLD AND CATALYTIC CONVERTERPFP:14004
Removal and InstallationEBS00LQ4
REMOVAL
1. Remove undercover.
2. Disconnect exhaust front tube from catalytic converter. Refer to FE-10, "Removal and Installation".
3. Remove exhaust manifold support from both sides of catalytic converter.
4. Disconnect heated oxygen sensor harness connector.
5. Remove heated oxygen sensor.
●Follow below steps to remove each heated oxygen sensor.
YEM048
1. Heated oxygen sensor 1 2. Ground nut 3. Gasket
4. Stud bolt 5.Exhaust manifold and catalytic con-
verter assembly6. Support
7. Exhaust manifold cover 8.Heated oxygen sensor harness
bracket

EM-20
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EXHAUST MANIFOLD AND CATALYTIC CONVERTER
●Using heated oxygen sensor wrench, remove heated oxygen
sensor.
CAUTION:
●Be careful not to damage heated oxygen sensor.
●When using heated oxygen sensor wrench, tighten to the
middle of specified torque because length of tool may
induce sight indication increase. (Do not tighten to the
maximum specified torque)
●Do not over torque the heated oxygen sensor. Doing so
may cause damage to the heated oxygen sensor, result-
ing in the MI coming on.
6. Remove exhaust manifold cover.
7. Loosen mounting nuts in reverse order shown in figure to
remove exhaust manifold and catalytic converter assembly.
INSPECTION AFTER REMOVAL
Surface Distortion
●Use a reliable straightedge and feeler gauge to check the flat-
ness of exhaust manifold fitting surface.
INSTALLATION
●Install in the reverse order of removal after this step.
●Tighten mounting nuts for exhaust manifold and catalytic con-
verter assembly in order shown in figure.
●Before installing exhaust manifold support, apply liquid gasket to
contact surface on engine side.
Use Genuine Liquid Gasket or equivalent.
Installation of Heated Oxygen Sensor
CAUTION:
●Do not over torque the heated oxygen sensor. Doing so may cause damage to the heated oxygen
sensor, resulting in the MI coming on.
PBIC0541E
PBIC0542E
Limit : 0.3 mm (0.012 in)
PBIC0543E
PBIC0542E

EXHAUST MANIFOLD AND CATALYTIC CONVERTER
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Disassembly and AssemblyEBS00LQX
DISASSEMBLY
1. Remove catalytic converter cover.
2. Disconnect exhaust manifold and catalytic converter.
CAUTION:
Be careful not to damage catalytic converter.
ASSEMBLY
●Assemble in reverse order of disassembly.
YEM049
1. Exhaust manifold 2. Catalytic converter 3. Catalytic converter cover

EM-22
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OIL PAN AND OIL STRAINER
OIL PAN AND OIL STRAINER
P F P : 1111 0
Removal and InstallationEBS00LQ6
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the engine oil when the engine is hot.
1. Remove undercover.
2. Drain engine oil. Refer to LC-8, "Changing Engine Oil".
3. Remove exhaust front tube. Refer to FE-10, "Removal and Installation".
4. Using a transmission jack, be sure to support the bottom of tran-
saxle oil pan, and remove center member.
5. Remove gusset and engine rear plate (lower) [A/T vehicle].
6. Loosen and remove mounting nuts and bolts in reverse order
shown in figure.
PBIC0548E
1. Oil strainer 2. Washer 3. Drain plug
4. Oil pan
SEM067F
SEM072F