2008 NISSAN LATIO engine

EI-8
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sun visor shaft shaking in the holder
3. Front or rear windshield touching headliner and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
OVERHEAD CONSOLE (FRONT AND REAR)
Overhead console noises are often caused by the console panel clips not being engaged correctly. Most of
these incidents are repaired by pushing up on the console at the clip locations until the clips engage.
In addition look for:
1. Loose harness or harness connectors.
2. Front console map/reading lamp lens loose.
3. Loose screws at console attachment points.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component installed on the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.

EI-14
< ON-VEHICLE REPAIR >
FRONT BUMPER
ON-VEHICLE REPAIR
FRONT BUMPER
Removal and InstallationINFOID:0000000001704218
1. Bumper stay RH 2. Bumper reinforcement (production) 3. Bumper energy absorber
4. Engine undercover 5. Front valance 6. Front bumper fascia
7. Access cover 8. Fog lamp opening finisher (without
fog lamps)9. Fog lamp opening finisher (with fog
lamps)
WIIA1405E

FRONT BUMPER
EI-15
< ON-VEHICLE REPAIR >
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CAUTION:
Bumper fascia is made of resin. Do not apply strong force to it, and be careful to prevent contact with
oil.
REMOVAL
1. Open hood.
2. Remove front grille. Refer to EI-20
.
3. Remove front fender protectors RH/LH. Refer to EI-23
.
4. Remove front valance and engine undercover.
5. Remove screws of front bumper fascia RH/LH.
6. Pull the outboard edge of front bumper fascia away from vehicle
to disengage from the bumper side retainer.
7. Disconnect fog lamp harness connector RH/LH (if equipped).
8. Remove the front bumper fascia.
9. Remove fog lamp opening finisher and fog lamp assembly RH/
LH (if equipped). Refer to LT-47, "
Removal and Installation".
10. Remove bumper energy absorber.
11. Remove RH/LH air guide mounting clips of bumper reinforcement.
12. Remove the nuts, then remove bumper reinforcement and bumper stay(s):
• For production, bumper stay LH is part of bumper reinforcement.
• For service, bumper stay RH/LH are separate assemblies.
13. Remove bumper side bracket RH/LH after front bumper fascia removal.
INSTALLATION
Installation is in the reverse order of removal.
10. Fog lamp assembly 11. Bumper side retainer 12. Bumper stay LH (service)
A. Clip C205
PIIB2537J
PIIB2538J
PIIB2543J

EM-1
ENGINE
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SECTION EM
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CONTENTS
ENGINE MECHANICAL
SERVICE INFORMATION ............................3
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
3
Precaution for Procedure without Cowl Top Cover ......3
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
3
Precaution for Drain Coolant .....................................4
Precaution for Disconnecting Fuel Piping .................4
Precaution for Removal and Disassembly ................4
Precaution for Inspection, Repair and Replace-
ment ..........................................................................
4
Precaution for Assembly and Installation ..................4
Parts Requiring Angular Tightening ..........................4
Precaution for Liquid Gasket .....................................5
PREPARATION ...................................................7
Special Service Tool .................................................7
Commercial Service Tool ..........................................9
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ............................
11
NVH Troubleshooting - Engine Noise .....................11
Use the Chart Below to Help You Find the Cause
of the Symptom .......................................................
12
DRIVE BELTS ....................................................13
Component ..............................................................13
Checking Drive Belts ...............................................13
Tension Adjustment ................................................13
Removal and Installation .........................................13
Component ..............................................................14
Removal and Installation of Drive Belt Auto Ten-
sioner ......................................................................
14
AIR CLEANER AND AIR DUCT ........................16
Component ..............................................................16
Removal and Installation .........................................16
Changing Air Cleaner Filter .....................................17
INTAKE MANIFOLD .........................................18
Component ..............................................................18
Removal and Installation .........................................18
EXHAUST MANIFOLD ......................................21
Component ..............................................................21
Removal and Installation .........................................21
OIL PAN ............................................................24
Component ..............................................................24
Removal and Installation .........................................24
IGNITION COIL, SPARK PLUG AND ROCK-
ER COVER ........................................................
30
Component ..............................................................30
Removal and Installation .........................................30
FUEL INJECTOR AND FUEL TUBE ................33
Component ..............................................................33
Removal and Installation .........................................33
TIMING CHAIN ..................................................37
Component ..............................................................37
Removal and Installation .........................................38
CAMSHAFT .......................................................47
Component ..............................................................47
Removal and Installation .........................................47
Valve Clearance ......................................................55
OIL SEAL ..........................................................59
Removal and Installation of Valve Oil Seal ..............59
Removal and Installation of Front Oil Seal ..............59
Removal and Installation of Rear Oil Seal ...............60
CYLINDER HEAD .............................................62
On-Vehicle Service ..................................................62
Component ..............................................................63
Removal and Installation .........................................63
Component ..............................................................65
Disassembly and Assembly .....................................66
Inspection After Disassembly ..................................67

EM-2
ENGINE ASSEMBLY .........................................72
Component .............................................................72
Removal and Installation ........................................72
CYLINDER BLOCK ...........................................76
Component .............................................................76
Disassembly and Assembly ....................................77
How to Select Piston and Bearing ..........................85
Inspection After Disassembly ..................................93
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
104
Standard and Limit ................................................104

EM-4
< SERVICE INFORMATION >
PRECAUTIONS
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
Precaution for Drain CoolantINFOID:0000000001702463
• Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000001702464
• 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.
Precaution for Removal and DisassemblyINFOID:0000000001702465
• When instructed to use special service tools, use the specified 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 equivalent, 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 specified, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000001702466
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000001702467
• 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:0000000001702468
• 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 angular
tightening)

PRECAUTIONS
EM-5
< SERVICE INFORMATION >
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• 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:0000000001702469
REMOVAL OF LIQUID GASKET SEALING
• 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 gasket
application 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 sealant 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 sealant application, install the mat-
ing component.
• If the sealant protrudes, wipe it off immediately.
• Do not retighten after the installation.Tool number : KV10112100 (BT-8653-A)
Tool number : KV10111100 (J-37228)
WBIA0566E
PBIC0003E
Tool number WS39930000 ( – )
WBIA0567E

EM-6
< SERVICE INFORMATION >
PRECAUTIONS
• After 30 minutes or more have passed from the installation, fill
the engine with the specified oil and coolant. Refer to MA-10,
"Fluids and Lubricants".
CAUTION:
Follow all specific instructions in this manual.
SEM159F