2011 NISSAN LATIO engine

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-3
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OIL PAN ...........................................................144
Component .......................................................... ..144
Removal and Installation .......................................144
Inspection ............................................................ ..149
IGNITION COIL, SPARK PLUG AND ROCK-
ER COVER .......................................................
151
Component ............................................................151
Removal and Installation .......................................151
FUEL INJECTOR AND FUEL TUBE ............. ..154
Component .......................................................... ..154
Removal and Installation .......................................154
Inspection ............................................................ ..157
TIMING CHAIN .................................................159
Component ............................................................159
Removal and Installation .......................................160
Inspection ............................................................ ..169
CAMSHAFT ......................................................170
Component .......................................................... ..170
Removal and Installation .......................................170
Valve Clearance .................................................. ..178
OIL SEAL .........................................................182
Removal and Installation of Valve Oil Seal ...........182
Removal and Installation of Front Oil Seal ............182
Inspection ............................................................ ..183
Removal and Installation of Rear Oil Seal .............184
Inspection ............................................................ ..185
CYLINDER HEAD ...........................................186
On-Vehicle Service ................................................186
Inspection ..............................................................187
Component ............................................................188
Removal and Installation .......................................188
Component ............................................................190
Disassembly and Assembly ...................................190
Inspection After Disassembly ................................192
ENGINE ASSEMBLY ......................................197
Component .......................................................... ..197
Removal and Installation .......................................197
CYLINDER BLOCK .........................................202
Component ............................................................202
Disassembly and Assembly ...................................203
How to Select Piston and Bearing ....................... ..212
Inspection After Disassembly .............................. ..219
SERVICE DATA AND SPECIFICATIONS
(SDS) ...............................................................
230
Standard and Limit ................................................230
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
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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

EM-10
< PREPARATION >[HR16DE]
PREPARATION
Acoustic tension gauge
Checking drive belt tension
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907) Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
Manual lift table caddy Removing and installing engine
Tool name
Description
PBIC3881E
AEM489
ZZA1210D
Revision: May 2010 2011 Versa

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGEM-11
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHN
ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting - Engine NoiseINFOID:0000000005930922
PBIC3870E
Revision: May 2010 2011 Versa

EM-12
< SYMPTOM DIAGNOSIS >[HR16DE]
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING
Use the Chart Below to Help You Find the Cause of the Symptom
INFOID:0000000005930923
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
A: Closely related B: Related C: Sometimes related —: Not relatedLocation
of noise Typ e of
noise Operating condition of engine
Source of noise Check item Refer-
ence page
Before
warm- up After
warm- up When
start- ing When
idling When
racing While
driving
Top of en-
gine
Rocker
cover
Cylinder
head Ticking or
clicking
CA—AB— Tappet
noiseValve clearance
EM-19
Rattle C A — A B C Camshaft
bearing
noiseCamshaft journal oil
clearance
Camshaft runout
EM-112EM-112
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil panSlap or
knock
—A—BB—
Piston pin
noisePiston to piston pin oil
clearance
Connecting rod small
end clearance
EM-116
EM-119
Slap or
rap
A——BBA
Piston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion EM-116EM-116
EM-116
EM-119
Knock A B C B B B
Connect-
ing rod
bearing
noiseConnecting rod small
end clearance
Connecting rod bearing
oil clearance
EM-116EM-119
Knock A B — A B C
Main bear-
ing noiseMain bearing oil clear-
ance
Crankshaft runout EM-120EM-116
Front of
engine
Front cov-
erTapping or
ticking
AA—BBB Timing
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operation
EM-57
Front of
engineSqueak-
ing or fizz-
ing
AB—B—C Drive belt
(Sticking
or slip-
ping)Drive belt deflection
E M - 111
Creaking A B A B A B Drive belt
(Slipping)Idler pulley bearing op-
eration
Squall
Creak AB—BAB Water
pump
noise
Water pump operation
CO-21
Revision: May 2010 2011 Versa