2011 NISSAN LATIO coolant

EM-2
IGNITION COIL, SPARK PLUG AND ROCK-
ER COVER .........................................................
46
Exploded View ........................................................46
Removal and Installation ........................................46
TIMING CHAIN ............................................... ...49
Exploded View ..................................................... ...49
Removal and Installation ........................................49
Inspection ...............................................................57
CAMSHAFT .......................................................59
Exploded View ..................................................... ...59
Removal and Installation ........................................59
Inspection ...............................................................65
OIL SEAL ...........................................................70
VALVE OIL SEAL .................................................. ...70
VALVE OIL SEAL : Removal and Installation .........70
FRONT OIL SEAL .................................................. ...70
FRONT OIL SEAL : Removal and Installation ........71
REAR OIL SEAL .................................................... ...71
REAR OIL SEAL : Removal and Installation ..........71
CYLINDER HEAD ........................................... ...73
Removal and Installation ..................................... ...73
Disassembly and Assembly ....................................76
REMOVAL AND INSTALLATION ...............82
ENGINE ASSEMBLY ...................................... ...82
Exploded View ..................................................... ...82
Removal and Installation ........................................82
Inspection ...............................................................85
DISASSEMBLY AND ASSEMBLY .............87
ENGINE STAND SETTING ............................. ...87
Setting ................................................................. ...87
ENGINE UNIT ....................................................88
Disassembly ........................................................ ...88
Assembly ................................................................88
CYLINDER BLOCK ...........................................89
Exploded View ..................................................... ...89
Disassembly and Assembly ....................................90
Inspection ...............................................................97
HOW TO SELECT PISTON AND BEARING ...106
Description ........................................................... ..106
Connecting Rod Bearing .......................................106
Main Bearing .........................................................108
SERVICE DATA AND SPECIFICATIONS
(SDS) ........................................................ ..
111
SERVICE DATA AND SPECIFICATIONS
(SDS) ............................................................... .
111
General Specification .......................................... ..111
Drive Belts ............................................................ .111
Spark Plug ............................................................112
Exhaust Manifold ..................................................112
Camshaft ...............................................................112
Cylinder Head .......................................................114
Cylinder Block .......................................................116
Connecting Rod Bearing .......................................119
Main Bearing .........................................................120
MR18DE
SERVICE INFORMATION .. .......................
122
PRECAUTIONS .............................................. ..122
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
122
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ................................
122
Precaution for Procedure without Cowl Top Cover .123
Precaution for Drain Coolant .................................123
Precaution for Disconnecting Fuel Piping ............ .123
Precaution for Removal and Disassembly ............123
Precaution for Inspection, Repair and Replace-
ment ......................................................................
123
Precaution for Assembly and Installation ............. .123
Parts Requiring Angular Tightening ......................124
Precaution for Liquid Gasket .................................124
PREPARATION ................................................126
Special Service Tool ............................................ .126
Commercial Service Tool ......................................128
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ...........................
130
NVH Troubleshooting - Engine Noise .................. .130
Use the Chart Below to Help You Find the Cause
of the Symptom .................................................... .
131
DRIVE BELTS ..................................................132
Component .......................................................... .132
Checking Drive Belts .............................................132
Tension Adjustment ..............................................132
Removal and Installation .......................................132
Component .......................................................... .133
Removal and Installation of Drive Belt Auto Ten-
sioner ....................................................................
133
AIR CLEANER AND AIR DUCT .......................135
Component .......................................................... .135
Removal and Installation .......................................135
Changing Air Cleaner Filter ...................................136
INTAKE MANIFOLD ....................................... ..137
Component .......................................................... .137
Removal and Installation .......................................137
Inspection ............................................................. .139
EXHAUST MANIFOLD .....................................141
Component .......................................................... .141
Removal and Installation .......................................141
Revision: May 2010 2011 Versa

EM-4
< PRECAUTION >[HR16DE]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005930910
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution for Procedure without Cowl Top CoverINFOID:0000000005930912
When performing the procedure after removing cowl top cover, cover
the lower end of windshield.
Precaution for Drain CoolantINFOID:0000000005930913
• Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000005930914
• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
PIIB3706J
Revision: May 2010 2011 Versa

PRECAUTIONSEM-5
< PRECAUTION > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
Precaution for Removal and DisassemblyINFOID:0000000005930915
• When instructed to use special service tools, use the spec
ified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or the equiva lent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally opposite, and so on. If the order of loosening is specif ied, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000005930916
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000005930917
• Use torque wrench to tighten bolts or nuts to specification.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
• Replace with new gasket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust. Before assembly, oil sliding surfaces well.
• Release air within route after draining coolant.
• Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped).
Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for
leakage.
Parts Requiring Angular TighteningINFOID:0000000005930918
• Use an angle wrench for the final tightening of the following engine parts:
- Cylinder head bolts
- Camshaft sprocket (INT)
- Main bearing cap bolts
- Connecting rod cap nuts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angulartightening)
• Do not use a torque value for final tightening.
• The torque value for these parts are for a preliminary step.
• Ensure thread and seat surfaces are clean and coated with engine oil.
Precaution for Liquid GasketINFOID:0000000005930919
REMOVAL OF LIQUID GASKET SEALING
Tool number : KV10112100 (BT-8653-A)
Revision: May 2010 2011 Versa

EM-6
< PRECAUTION >[HR16DE]
PRECAUTIONS
• After removing the bolts and nuts, separate the mating surface and
remove the sealant using Tool.
CAUTION:
Be careful not to damage the mating surfaces.
• In areas where the cutter is difficult to use, use a plastic hammer to lightly tap (1) the cutter where the RTV Silicone Sealant is applied.
Use a plastic hammer to slide the cutter (2) by tapping on the side.
CAUTION:
If for some unavoidable reason a tool such as a flat-bladed
screwdriver is used, be careful not to damage the mating sur-
faces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old Silicone RTV Sealant adhering to the gasket application surface and the mating surface.
• Remove the sealant completely from the groove of the gasketapplication surface, bolts, and bolt holes.
2. Thoroughly clean the gasket application surface and the mating surface and remove adhering moisture, grease and foreign
materials.
3. Attach the sealant tube to the tube presser. Use Genuine Silicone RTV Sealant or equivalent. Refer to
GI-42, "
Recommended Chemical Product and Sealant".
4. Apply the sealant without breaks to the specified location using Tool.
• If there is a groove for the s ealant application, apply the seal-
ant to the groove.
• As for the bolt holes, normally apply the sealant inside the holes. If specified, it should be applied outside the holes. Make
sure to read the text of this manual.
• Within five minutes of the seal ant application, install the mat-
ing component.
• If the sealant protrudes, wipe it off immediately.
• Do not retighten after the installation.
• After 30 minutes or more have passed from the installation, fill the engine with the specified oil and coolant. Refer to MA-14,
"Fluids and Lubricants".
CAUTION:
Follow all specific instructions in this manual. Tool number : KV10111100 (J-37228)
WBIA0566E
PBIC0003E
Tool number WS39930000 ( – )
WBIA0567E
SEM159F
Revision: May 2010
2011 Versa

DRIVE BELTSEM-13
< ON-VEHICLE MAINTENANCE > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
ON-VEHICLE MAINTENANCE
DRIVE BELTS
CheckingINFOID:0000000005930924
• Inspection should be done only when engine is cold or over 30
minutes after the engine is stopped.
• Visually check belts for wear, damage, and cracks on inside and edges.
• Turn crankshaft pulley two times clockwise, and make sure tension on all pulleys is equal before doing the test.
• When measuring deflection, apply 98 N (10 kg, 22 lb) at the ( ) marked point.
• Measure the belt tension and frequency with acous tic tension gauge at the ( ) marked point.
CAUTION:
• When the tension and frequency are measured, the acoustic tension gauge should be used.
• When checking immediately after installation, first ad just it to the specified value. Then, after turning
crankshaft two turns or more, re-adjust to the sp ecified value to avoid variation in deflection
between pulleys.
Tension AdjustmentINFOID:0000000005930925
CAUTION:
• When belt is replaced with new one, adjust belt te nsion to the value for “New belt”, because new belt
will not fully seat in the pulley groove.
• When tension of the belt being used exceeds “Limit”, adjust it to the value for “After adjusted”.
• When installing a belt, make sure it is correctly engaged with the pulley groove.
• Never allow oil or engine coolant to get on the belt.
• Never twist or bend the belt strongly.
1. Loosen the idler pulley lock nut (A) from the tightening position with the specified torque by 45 degrees.
CAUTION:
1 : Generator
2 : Water pump
3 : Crankshaft pulley
4: A/C compressor (with A/C models)
: Idler pulley (without A/C models)
5 : Idler pulley
6: Drive belt
Belt Deflection / Belt Tension and Frequency : Refer to EM-111, "Drive Belts".
PBIC3642E
LocationLocation of adjuster and tightening method
Drive belt Adjusting bolt on idler pulley
1 : Generator
2: Water pump
3 : Crankshaft pulley
4 : A/C compressor (with A/C models)
: Idler pulley (without A/C models)
5 : Idler pulley
6: Drive belt
A : Idler pulley lock nut
B : Adjusting bolt
PBIC3643E
Revision: May 2010 2011 Versa

EM-14
< ON-VEHICLE MAINTENANCE >[HR16DE]
DRIVE BELTS
• When the lock nut is loosened
excessively, the idler pulley tilts an d the correct tension adjust-
ment cannot be performed. Never loosen it excessively (more than 45 degrees).
• Put a matching mark on the lock nut, and check turning angle with a protractor. Never visually
check the tightening angle.
2. Adjust the belt tension by turning the adjusting bolt. CAUTION:
• When checking immediately after in stallation, first adjust it to the specified value. Then, after
turning crankshaft two turns or more, re-adjust to the specified value to avoid variation in deflec-
tion between pulleys.
• When the tension adjustment is performed, the lo ck nut should be in the condition at step“2”. If
the tension adjustment is performed when the lo ck nut is loosened more than the standard, the
idler pulley tilts and the correct tension adjustment cannot be performed.
3. Tighten the idler pulley lock nut.
Removal and InstallationINFOID:0000000005930926
REMOVAL
1. Loosen the idler pulley lock nut (A), and then adjust the belt ten- sion by turning the adjusting bolt (B).
2. Remove drive belt.
INSTALLATION
1. Pull the idler pulley in the loosening direction, and then tempo- rarily tighten the idler pulley lock nut (A) to the following torque.
NOTE:
Do not move the lock nut from t he tightened position. Proceed to step “2”.
2. Install the drive belt to each pulley. CAUTION:
• Make sure that there is no oil, greas e, or coolant, etc. in pulley grooves.
• Make sure that the belt is securely inside the groove on each pulley.
3. Adjust drive belt tension by turning the adjusting bolt. Refer to EM-13, "
Tension Adjustment".
CAUTION: Idler pulley lock nut : 34.8 N·m (3.5 kg-m, 26 ft-lb)
1 : Generator
2: Water pump
3 : Crankshaft pulley
4
: A/C compressor
(with A/C models)
: Idler pulley (without A/C models)
5 : Idler pulley
6 : Drive belt
PBIC3643E
1 : Generator
2: Water pump
3 : Crankshaft pulley
4 : A/C compressor
(with A/C models)
: Idler pulley (without A/C models)
5 : Idler pulley
6 : Drive belt
B : Adjusting bolt
Idler pulley lock nut : 4.4 N·m (0.45 kg-m, 39 in-lb)
(temporary tightening)
PBIC3643E
Revision: May 2010 2011 Versa

FUEL INJECTOR AND FUEL TUBEEM-37
< ON-VEHICLE REPAIR > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
c. Align center to insert quick connector straightly into fuel tube.
• Insert quick connector to fuel tube until the top spool on fuel
tube is inserted completely and the 2nd level spool is posi-
tioned slightly below quick connector bottom end.
CAUTION:
• Hold “A” position shown when inserting fuel tube into
quick connector.
• Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.
• Insert until you hear a “click” sound and actually feel the engagement.
• To avoid misidentification of engagement with a similar sound, be sure to perform the next step.
d. Before clamping fuel feed hose with hose clamp, pull quick connector hard by hand holding “A” position. Make sure it is completely engaged (connected) so that it does not come out from fuel tube.
e. Install quick connector cap (1) to quick connector connection. • Install quick connector cap with the side arrow facing quickconnector side (fuel feed hose side).
CAUTION:
• Make sure that the quick connector and fuel tube aresecurely engaged with the quick connector cap mount-
ing groove.
• Quick connector may not be connected correctly if quick connector cap cannot be installed easily. Remove
the quick connector cap, an d then check the connection
of quick connector again.
f. Install fuel feed hose to hose clamp.
7. Installation of the remaining components is in the reverse order of removal.
InspectionINFOID:0000000006413311
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, "
Fluids and Lubricants".
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak- age at connection points.
• Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
• Warm up engine thoroughly to make sure there is no leak age of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc.
NOTE:
KBIA0272E
PBIC3664E
Item Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Transmission/
transaxle fluid A/T and CVT Models
LeakageLevel/Leakage Leakage
M/T Models Level/Leakage LeakageLevel/Leakage
Other oils and fluids* LevelLeakage Level
Fuel LeakageLeakageLeakage
Exhaust gas —Leakage —
Revision: May 2010 2011 Versa

OIL PAN (LOWER)EM-41
< ON-VEHICLE REPAIR > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
InspectionINFOID:0000000005930946
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels incl
uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, "
Fluids and Lubricants".
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak- age at connection points.
• Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
• Warm up engine thoroughly to make sure there is no leak age of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Transmission/
transaxle fluid A/T and CVT Models
LeakageLevel/Leakage Leakage
M/T Models Level/Leakage LeakageLevel/Leakage
Other oils and fluids* LevelLeakage Level
Fuel LeakageLeakageLeakage
Exhaust gas —Leakage —
Revision: May 2010 2011 Versa