NISSAN LATIO 2011 Service Repair Manual

CAMSHAFT VALVE CLEARANCEEM-21
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• Thickness of new valve lifter (B) can be identified by stamp
mark (A) on the reverse side (inside the cylinder).
• Stamp mark “300” indicates 3.00 mm (0.118 in) in thickness.
NOTE:
Available thickness of valve lifter: 26 sizes range 3.00 to 3.50 mm (0.1181 to 0.1378 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to EM-112, "
Camshaft".
5. Install the selected valve lifter.
6. Install camshaft. Refer to EM-59, "
Exploded View".
7. Manually rotate crankshaft pulley a few rotations.
8. Make sure that valve clearances for cold engine are wit hin specifications by referring to the specified val-
ues.
9. Install all removed parts in the reverse order of removal.
10. Warm up the engine, and check for unusual noise and vibration.
PBIC3196J
Revision: May 2010 2011 Versa

EM-22
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COMPRESSION PRESSURE
COMPRESSION PRESSURE
InspectionINFOID:0000000005930931
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-499, "
Inspection".
3. Remove ignition coil and spark plug from each cylinder. Refer to EM-46, "
Exploded View".
4. Connect an engine tachometer (not required in use of CONSULT-III).
5. Install a compression tester (B) with an adapter (commercial service tool) (A) onto spark plug hole.
• Use the adapter whose picking up end inserted to spark plughole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
6. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each
cylinder.
CAUTION:
Always use fully a charged battery to obtain the specified engine speed.
• If the engine speed is out of the specified range, c heck battery liquid for proper gravity. Check engine
speed again with normal battery gravity.
• If compression pressure is below minimum val ue, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, pi ston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.
• If some cylinder has low compression pressure, pour small amount of engine oil into the spark plug hole of the cylinder to re-check it for compression.
- If the added engine oil improves the compression, pi ston rings may be worn out or damaged. Check pis-
ton rings and replace if necessary.
- If the compression pressure remains at low level despite the addition of engine oil, valves may be mal- functioning. Check valves for damage. Repl ace valve or valve seat accordingly.
• If two adjacent cylinders have respectively low co mpression pressure and their compression remains
low even after the addition of engine oil, cylinder head gasket is leaking. In such a case, replace cylinder
head gasket.
7. After inspection is completed, install removed parts.
8. Start the engine, and confirm that the engine runs smoothly.
9. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-114, "
Description".
PBIC3730E
SBIA0533E
Compression Pressure: Refer to EM-111, "General Specification".
Revision: May 2010 2011 Versa

DRIVE BELT IDLER PULLEYEM-23
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ON-VEHICLE REPAIR
DRIVE BELT IDLER PULLEY
Exploded ViewINFOID:0000000005930932
Removal and InstallationINFOID:0000000005930933
REMOVAL
1. Remove drive belt. Refer to
EM-14, "Removal and Installation".
2. Remove the lock nut, and then remove the plate, idler pulley, and washer.
3. Remove the center shaft together with the spacer with inserting the adjusting bolt.
INSTALLATION
1 : Generator bracket
2 : Center shaft
3 : Spacer
4 : Adjusting bolt
5: Washer
6 : Idler pulley
7: Plate
PBIC3644E
Revision: May 2010 2011 Versa

EM-24
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DRIVE BELT IDLER PULLEY
1. Insert the center shaft (1) into the slide groove of the spacer (2).
Fully screw in the adjusting bolt (3) in the belt loosening direc-
tion ( ).
• At that time, place the flange (a) of the adjusting bolt and theseat (b) of the center shaft on the spacer.
2. Place each surface (c, d) of the spacer on the generator bracket. Install the washer, idler pulley, and plate, and then temporarily
tighten the lock nut.
3. Installation is in the reverse order of removal. : 4.4 N·m (0.45 kg-m, 39 in-lb)
PBIC3885E
Revision: May 2010
2011 Versa

AIR CLEANER AND AIR DUCTEM-25
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AIR CLEANER AND AIR DUCT
Exploded ViewINFOID:0000000005930934
Removal and InstallationINFOID:0000000005930935
REMOVAL
1. Remove the battery. Refer to
SC-7, "Removal and Installation".
2. Remove the air duct (front).
3. Remove the air cleaner filter from the air cleaner case. Refer to EM-16, "
Removal and Installation".
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. Disconnect harness connector from mass air flow sensor.
8. Remove air cleaner case.
9. Remove the mass air flow sensor from the air cleaner case, if necessary. CAUTION:
• Handle mass air flow sensor carefully and avoid impacts.
• Never touch sensor part.
INSTALLATION
Installation is in the reverse order of removal.
1. Air cleaner filter 2. Mass air flow sensor 3. O-ring
4. Holder 5. Air cleaner cover 6. Air duct
7. PCV hose 8. Clip 9. Air duct (front)
10. Grommet 11. Air duct (inlet) 12. Grommet
13. Air cleaner case
A. To electric throttle control actuator B. To rocker cover
PBIC3645E
Revision: May 2010 2011 Versa

EM-26
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AIR CLEANER AND AIR DUCT
• Align marks. Attach each joint. Screw clamps firmly.
InspectionINFOID:0000000005930936
INSPECTION AFTER REMOVAL
Inspect air ducts and air cleaner assembly for crack or tear.
• If anything found, replace air ducts and air cleaner assembly as necessary.
Revision: May 2010
2011 Versa

INTAKE MANIFOLDEM-27
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INTAKE MANIFOLD
Exploded ViewINFOID:0000000005930937
Removal and InstallationINFOID:0000000005930938
REMOVAL
1. Remove the air duct (inlet) and air duct (between air
cleaner case and electric throttle control actuator).
Refer to EM-25, "
Exploded View".
2. Remove the reservoir tank. Refer to CO-16, "
Component".
3. Remove the oil level gauge. CAUTION:
Cover the oil level gauge guide openings to avoid entry of foreign materials.
4. Remove electric throttle control actuator and position aside. CAUTION:
• Handle electric throttle control act uator carefully and avoid impacts.
• Never disassemble or adjust elect ric throttle control actuator.
5. Disconnect the harness connector and EV AP hose from the EVAP canister purge volume control solenoid
valve.
6. Disconnect vacuum hose for brake booster from intake manifold.
PBIC4737E
1. EVAP hose 2. Vacuum tank3. EVAP hose
4. O-ring 5.EVAP canister purge volume control
solenoid valve 6. Electric throttle control actuator
7. Water hose 8. Water hose 9. Gasket
10. Intake manifold support (rear) 11. Intake manifold 12. Intake manifold support (front)
13. Intake manifold support (center) 14. Cylinder head 15. Vacuum hose
16. Gasket
A. To centralized under-floor piping B. To brake booster C. To water outlet
Revision: May 2010 2011 Versa

EM-28
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INTAKE MANIFOLD
7. Remove intake manifold support front (1) and bolt from rear (2).
• Bracket (2) is not removed. Remove bolt from intake manifold.
8. Remove intake manifold. • Loosen bolts in the reverse of the order shown.
9. Remove EVAP canister purge volume control solenoid valve from intake manifold, if necessary. CAUTION:
Handle EVAP canister purge volume control solenoid valve carefully and avoid impacts.
10. Remove intake manifold support (center) from cylinder head, if necessary. NOTE:
The intake manifold support (center ) functions as the guide when the intake manifold is installed.
INSTALLATION
Installation is in the reverse order of removal.
Intake Manifold
1. Install the gasket to the intake manifold.
• Align the protrusion (A) of gasket to the groove of intake mani-fold.
2. Place the intake manifold into the installation position. CAUTION:
Make sure that the oil level gauge guide is not di sconnected from the fixing clip of water inlet due
to interference with intake manifold.
JPBIA0278ZZ
: Engine front
PBIC3652E
PBIC3651E
Revision: May 2010 2011 Versa

INTAKE MANIFOLDEM-29
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3. Tighten bolts in the numerical order shown.
4. Install intake manifold support (front and rear).
Electric Throttle Control Actuator
• Tighten bolts of electric throttle control
actuator equally and diagonally in several steps.
• Perform “Throttle Valve Closed Position Learning” after repair when removing harness connector of the elec- tric throttle control actuator. Refer to EC-25, "
THROTTLE VALVE CLOSED POSITION LEARNING : Special
Repair Requirement".
• Perform “Throttle Valve Closed Position Learning” and “Idle Air Volume Learning” after repair when replacing electric throttle control actuator. Refer to EC-25, "
THROTTLE VALVE CLOSED POSITION LEARNING :
Special Repair Requirement" and EC-26, "IDLE AIR VOLUME LEARNING : Special Repair Requirement".
: Engine front
PBIC3652E
Revision: May 2010 2011 Versa

EM-30
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EXHAUST MANIFOLD
EXHAUST MANIFOLD
Exploded ViewINFOID:0000000005930939
Removal and InstallationINFOID:0000000005930940
REMOVAL
1. Remove the cowl. Refer to
EI-24, "Removal and Installation".
2. Remove heat insulator.
3. Remove exhaust front tube. Refer to EX-5, "
Component".
4. Remove the harness bracket of air fuel ratio sensor 1 from the cylinder head.
5. Remove exhaust manifold covers.
6. Remove the air fuel ratio sensor 1.
1. Exhaust manifold cover 2. Exhaust manifold cover3. Harness bracket
4. Air fuel ratio sensor 1 5. Exhaust manifold stay6. Exhaust manifold
7. Gasket 8. Stud bolt9. Heat insulator
: Engine front
PBIC4750E
Revision: May 2010 2011 Versa