CYLINDER HEADEM-73
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CYLINDER HEAD
Removal and InstallationINFOID:0000000005930960
REMOVAL
WARNING:
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventila
ted area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
1. Release fuel pressure. Refer to EC-499, "
Inspection".
2. Drain engine coolant and engine oil. Refer to CO-11, "
Changing Engine Coolant" and LU-8, "Draining".
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant and engine oil on drive belt.
3. Remove the following components and related parts. • Front fender protector (RH). Refer to EI-26, "
Removal and Installation".
• Generator. Refer to SC-25, "
Removal and Installation".
• Exhaust front tube. Refer to EX-5, "
Component".
• Exhaust manifold. Refer to EM-30, "
Exploded View".
• Intake manifold. Refer to EM-27, "
Exploded View".
• Fuel tube and fuel injector. Refer to EM-33, "
Exploded View".
• Water outlet. Refer to CO-24, "
Removal and Installation".
• Drive belt. Refer to EM-14, "
Removal and Installation".
• Front cover. Refer to EM-49, "
Exploded View".
• Camshaft. Refer to EM-59, "
Exploded View".
• Air cleaner assembly. Refer to EM-25, "
Removal and Installation".
1. Cylinder head assembly 2. Cylinder head bolt3. Washer
4. Cylinder head gasket A. Refer to EM-73
PBIC3731E
Revision: May 2010 2011 Versa
ENGINE ASSEMBLYEM-83
< REMOVAL AND INSTALLATION > [HR16DE]
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• If items or work required are not covered by the engine section, follow the procedures in the applica-
ble sections.
• Always use the support poin t specified for lifting.
• Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with a transmission jack or similar tool before
starting work, in preparation for the backward shif t of center of gravity.
• For supporting points fo r lifting and jacking point at rear axle, refer to GI-38, "
Garage Jack and
Safety Stand and 2-Pole Lift".
REMOVAL
Outline
Remove the engine and the transaxle assembly from t he vehicle downward. Separate the engine and the tran-
saxle.
Preparation
1. Remove the hood assembly. Refer to BL-14, "Removal and Installation".
2. Remove the cowl top cover and cowl top extension assembly. Refer to EI-24, "
Removal and Installation".
3. Release fuel pressure. Refer to EC-499, "
Inspection".
4. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.
5. Remove the following parts. • Engine under cover. Refer to EI-15, "
Removal and Installation".
• Front road wheels and tires. Refer to WT-7, "
Adjustment".
• Front fender protector (RH and LH). Refer to EI-26, "
Removal and Installation".
• Battery and battery tray. Refer to SC-7, "
Removal and Installation".
• Drive belt. Refer to EM-14, "
Removal and Installation".
• Air duct and air cleaner case assembly. Refer to EM-25, "
Exploded View".
• Radiator hose (upper and lower). Refer to CO-16, "
Component".
• Disconnect cooling fan controller wiring harness.
• Remove coolant reservoir tank.
• Remove fan shroud and cooling fan assembly. Refer to CO-18, "
Component (Models with A/C)" or CO-
18, "Component (Models without A/C)".
Engine Room LH
1. Disconnect all connections of engine harness around the engine mounting insulator (LH), and then tem-
porarily secure the engine harness into the engine side.
CAUTION:
Protect connectors using a resin bag against foreign materials.
2. Remove ground cable at transaxle side.
3. Disconnect fuel feed hose at engine side. Refer to EM-33, "
Exploded View".
4. Disconnect EVAP purge hose and brake booster vacuum hose.
5. Disconnect heater hoses, and install plugs them to prevent engine coolant from draining. Refer to CO-16,
"Component".
6. Disconnect control linkage from transaxle. Refer to AT-213, "
A/T Shift Selector Removal and Installation"
(A/T), MT-14, "Exploded View" (M/T).
7. Disconnect the clutch tube at tr ansmission side (if equipped). Refer to CL-15, "
Removal and Installation".
Engine Room RH
1. Remove ground cable between front cover and vehicle.
2. Remove generator and generator br acket (A/C models). Refer to SC-25, "
Removal and Installation".
3. Remove A/C compressor with piping connected from t he engine. Temporarily secure it on the vehicle side
with a rope to avoid putting load on it (if equipped). Refer to MTC-78, "
Removal and Installation of Com-
pressor - HR16DE".
Vehicle Underbody
1. Remove front wheel sensor (LH and RH) for ABS from steering knuckle (if equipped). Refer to BRC-33,
"Removal and Installation" (ABS) or BRC-86, "Removal and Installation" (VDC/TCS/ABS).
Revision: May 2010 2011 Versa
AIR CLEANER AND AIR DUCTEM-135
< SERVICE INFORMATION > [MR18DE]
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AIR CLEANER AND AIR DUCT
ComponentINFOID:0000000005931003
Removal and InstallationINFOID:0000000005931004
REMOVAL
1. Remove the engine room cover (1).
2. Remove the air duct (front).
3. Remove the air cleaner filter from the air cleaner case. Refer to
EM-136, "
Changing Air Cleaner Filter".
4. Remove the air duct (inlet) from the air cleaner case.
5. Remove the PCV hose.
6. Remove the air duct. • Add marks as necessary for easier installation.
7. Remove air cleaner case with the following procedure.
a. Remove battery. Refer to SC-5
.
b. Disconnect harness connector from mass air flow sensor.
c. Remove the air cleaner case.
8. Remove the mass air flow sensor from the air cleaner case, if necessary. CAUTION:
• Handle it carefully and avoid impacts.
• Do not touch sensor part.
1. Air cleaner filter 2. Holder 3. Air cleaner cover
4. Seal 5. Mass air flow sensor 6. Air duct
7. PCV hose 8. Air duct (Inlet) 9. Air duct (Front)
10. Clip 11. Resonator 12. Grommet
13. Air cleaner case A. To electric throttle control actuator B. To rocker cover
WBIA0770E
WBIA0845E
Revision: May 2010 2011 Versa
EM-136
< SERVICE INFORMATION >[MR18DE]
AIR CLEANER AND AIR DUCT
INSTALLATION
Installation is in the reverse order of removal.
• Align marks.
• Attach each joint securely.
• Screw clamps firmly.
Changing Air Cleaner FilterINFOID:0000000005931005
REMOVAL
1. Push the tabs (A) of both ends of the air cleaner cover (1) into
the inside (B).
2. Pull up the air cleaner cover (1) and remove it (C).
3. Remove the air cleaner filter (1) and holder (2) assembly from the air cleaner case.
4. Remove the air cleaner filter (1) from the holder (2).
INSPECTION AFTER REMOVAL
It is necessary to replace the air cleaner filter at the recommended intervals, more often under dusty driving
conditions. Refer to MA-9, "
Introduction of Periodic Maintenance".
INSTALLATION
Installation is in the reverse order of removal.
• Install the air cleaner cover (1) in the direction shown.
• Air cleaner filter (2)
• Holder (3)
PBIC3557J
PBIC3558J
PBIC3559J
Revision: May 2010 2011 Versa
EXHAUST MANIFOLDEM-143
< SERVICE INFORMATION > [MR18DE]
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3. Install exhaust manifold stay (2) in the direction as shown.
4. Install the air fuel ratio sensor 1, using Tool (A).
CAUTION:
• Handle it carefully and avoid impacts.
• Before installing a new air fuel ratio sensor, clean the
exhaust tube threads using suitable tool and approved
anti-seize lubricant.
• Do not over-tighten the air fuel ratio sensor. Doing so may damage the air fuel ratio senso r, resulting in the MIL com-
ing on.
5. Installation of the remaining parts is in the reverse order of removal.
1 : Exhaust manifold
A : Upper mark : Engine front
PBIC3944E
Tool number : KV991J0050 (J-44626)
Oxygen sensor thread cleaner : (J-43897-12)
Oxygen sensor thread cleaner : (J-43897-18)
WBIA0772E
Revision: May 2010 2011 Versa
EM-152
< SERVICE INFORMATION >[MR18DE]
IGNITION COIL, SPARK PLUG AND ROCKER COVER
4. Remove rocker cover.
• Loosen bolts in reverse order as shown.
• Engine front
INSPECTION AFTER REMOVAL
CAUTION:
• Never drop or shock spark plug.
• Checking and adjusting spar k plug gap is not required
between change intervals.
• If spark plug tip is covered with car bon, a spark plug cleaner may be used.
• Never use wire brush for cleaning spark plug.
INSTALLATION
1. Install the rocker cover gasket to the rocker cover.
2. Install rocker cover. • Tighten bolts in two steps separately in numerical order asshown.
• Engine front
CAUTION:
Check if rocker cover gasket is not dropped from the instal-
lation groove of rocker cover.
PBIC3151J
SMA806CA
Cleaner air pressure : Less than 588 kPa (5.88 bar, 6 kg/cm2, 85 psi)
Cleaning time : Less than 20 seconds
SMA773C
1st step : 1.96 N·m (0.20 kg-m, 17 in-lb)
2nd step : 8.33 N·m (0.85 kg-m, 73 in-lb)
PBIC3151J
Revision: May 2010 2011 Versa
EM-198
< SERVICE INFORMATION >[MR18DE]
ENGINE ASSEMBLY
• Use either 2-pole lift type or separate type lift as
best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with a transmission jack or similar tool before
starting work, in preparation for the backward shift of center of gravity.
• For supporting points for lifting and jacking point at rear axle, refer to GI-38, "
Garage Jack and
Safety Stand and 2-Pole Lift".
REMOVAL
Remove the engine and the transaxle assembly from t he vehicle downward. Separate the engine and the tran-
saxle.
1. Remove engine under cover. Refer to EI-15, "
Removal and Installation".
2. Drain engine coolant from radiator. Refer to CO-36, "
Changing Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belt.
3. Drain clutch fluid (M/T models). Refer to CL-9, "
Air Bleeding Procedure".
4. Remove front fender protector (RH and LH). Refer to EI-26
.
5. Remove exhaust front tube. Refer to EX-10
.
6. Remove drive shafts (LH and RH) from steering knuckle. Refer to FA X - 9
.
7. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT-233
(A/T models),
CVT-180, "
Removal and Installation" (CVT models) or MT-61, "Removal and Installation" (M/T models).
8. Remove rear torque rod (1). NOTE:
A/T model shown CVT and M/T models similar.
9. Remove hood assembly. Refer to BL-13
.
10. Remove cowl top cover and cowl top extension assembly. Refer to EI-24
.
11. Release fuel pressure. Refer to EC-582, "
Fuel Pressure Check".
12. Remove battery and battery tray. Refer to SC-5
.
13. Remove drive belt; Refer to EM-132, "
Component".
14. Remove engine room cover.
15. Remove air duct and air cleaner case assembly. Refer to EM-135
.
16. Remove cooling fan assembly. Refer to CO-44, "
Removal and Installation".
17. Remove radiator hose (upper and lower). Refer to CO-40
.
18. Disconnect A/T fluid cooler hoses or CVT water hoses. Refer to CO-40, "
Component" (A/T) or CVT-175,
"WATER HOSE : Exploded View" (CVT).
NOTE:
Cap or plug opening(s) to prevent fluid from spilling.
19. Disconnect all connections of engine harness around the engine mounting insulator (LH), and then tem- porarily secure the engine harness into the engine side.
CAUTION:
Protect connectors using a resin bag to protect against foreign materials during the operation.
20. Disconnect fuel feed hose at engine side. Refer to EM-154, "
Component".
NOTE:
Cap or plug opening(s) to revent fluid from spilling.
21. Disconnect heater hoses. Refer to CO-50, "
Component".
NOTE:
Cap or plug opening(s) to revent fluid from spilling.
LBIA0460E
Revision: May 2010 2011 Versa
PREPARATIONEX-3
< PREPARATION > [HR16DE]
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000005931039
Commercial Service ToolINFOID:0000000005931040
Tool number
Tool name
Description
KV10114400
(J-38365)
Heated oxygen sensor wrench Loosening or tightening heated oxygen sen-
sor
a: 22 mm (0.87 in)
NT636
(Kent-Moore No.)
Tool name
Description
(J-43897-18)
(J-43897-12)
Heated oxygen sensor thread cleaner Reconditioning the exhaust system threads
before installing new heated oxygen and Air
fuel ratio sensors (Use with anti-seize lubri-
cant shown below.)
a: 18 mm (0.71 in) dia. for zirconia heated
oxygen sensor
b: 12 mm (0.47 in) dia. for titania heated ox-
ygen sensor
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907) Lubricating heated oxygen sensor thread
cleaner when reconditioning exhaust system
threads
Power tool Loosening bolts and nuts
AEM488
AEM489
PBIC0190E
Revision: May 2010 2011 Versa