2007 NISSAN TIIDA front

PRECAUTIONS
EC-1293
< PRECAUTION >[K9K]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001706108
The Supplemental Restraint System such as “AIR 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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
 To avoid rendering the SRS inoperative, 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 unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
 Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Procedure without Cowl Top CoverINFOID:0000000001162744
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnostic (OBD) System of EngineINFOID:0000000001162745
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:
 Be sure to turn the ignition switch OFF and disconnect the battery negative cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MI to light up.
 Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
 Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to XX-XX, "*****"
.
 Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MI to light up due to the short circuit.
 Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to the malfunction of the fuel system, etc.
 Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM before
returning the vehicle to the customer.
PIIB3706J

EM-2
Removal and Installation ........................................42
IGNITION COIL, SPARK PLUG AND ROCK-
ER COVER .........................................................
47
Exploded View ........................................................47
Removal and Installation ........................................47
TIMING CHAIN ..................................................50
Exploded View ........................................................50
Removal and Installation ........................................50
Inspection ...............................................................57
CAMSHAFT .......................................................59
Exploded View ........................................................59
Removal and Installation ........................................59
Inspection ...............................................................71
OIL SEAL ...........................................................77
VALVE OIL SEAL .....................................................77
VALVE OIL SEAL : Removal and Installation .........77
FRONT OIL SEAL .....................................................77
FRONT OIL SEAL : Removal and Installation ........78
REAR OIL SEAL .......................................................78
REAR OIL SEAL : Removal and Installation ..........78
CYLINDER HEAD ..............................................80
Removal and Installation ........................................80
Disassembly and Assembly ....................................82
REMOVAL AND INSTALLATION ...............89
ENGINE ASSEMBLY .........................................89
Exploded View ........................................................89
Removal and Installation ........................................89
Inspection ...............................................................92
DISASSEMBLY AND ASSEMBLY .............94
ENGINE STAND SETTING ................................94
Setting ....................................................................94
ENGINE UNIT ....................................................95
Disassembly ...........................................................95
Assembly ................................................................95
OIL PAN (UPPER) .............................................96
Exploded View ........................................................96
Removal and Installation ........................................96
Inspection ...............................................................99
CYLINDER BLOCK .........................................100
Exploded View .......................................................100
Disassembly and Assembly ...................................101
Inspection ..............................................................108
HOW TO SELECT PISTON AND BEARING ...117
Description .............................................................117
Connecting Rod Bearing .......................................117
Main Bearing .........................................................119
SERVICE DATA AND SPECIFICATIONS
(SDS) .........................................................
122
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
122
General Specification ............................................122
Drive Belts .............................................................122
Spark Plug ............................................................123
Exhaust Manifold ..................................................123
Camshaft ...............................................................123
Cylinder Head .......................................................125
Cylinder Block .......................................................127
Connecting Rod Bearing .......................................130
Main Bearing .........................................................131
MR18DE
SYMPTOM DIAGNOSIS ...........................
132
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ...........................
132
NVH Troubleshooting - Engine Noise ...................132
Use the Chart Below to Help You Find the Cause
of the Symptom .....................................................
133
PRECAUTION ...........................................134
PRECAUTIONS ................................................134
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
134
Precaution for Procedure without Cowl Top Cover .134
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ................................
134
Precaution for Drain Coolant .................................135
Precaution for Disconnecting Fuel Piping .............135
Precaution for Removal and Disassembly ............135
Precaution for Inspection, Repair and Replace-
ment ......................................................................
135
Precaution for Assembly and Installation ..............135
Parts Requiring Angular Tightening ......................135
Precaution for Liquid Gasket .................................136
PREPARATION .........................................138
PREPARATION ................................................138
Special Service Tool .............................................138
Commercial Service Tool ......................................140
ON-VEHICLE MAINTENANCE .................142
DRIVE BELTS ..................................................142
Component ...........................................................142
Checking Drive Belts .............................................142
Tension Adjustment ..............................................142
Removal and Installation .......................................142
AIR CLEANER FILTER ....................................144
Removal and Installation .......................................144
SPARK PLUG ...................................................145

EM-3
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P Component ............................................................
145
Removal and Installation .......................................145
CAMSHAFT VALVE CLEARANCE .................148
Valve Clearance ....................................................148
COMPRESSION PRESSURE ..........................151
Checking Compression Pressure ..........................151
ON-VEHICLE REPAIR ...............................153
DRIVE BELT AUTO TENSIONER ...................153
Component ............................................................153
Removal and Installation of Drive Belt Auto Ten-
sioner ....................................................................
153
AIR CLEANER AND AIR DUCT ......................154
Component ............................................................154
Removal and Installation .......................................154
INTAKE MANIFOLD .........................................156
Component ............................................................156
Removal and Installation .......................................156
EXHAUST MANIFOLD .....................................159
Component ............................................................159
Removal and Installation .......................................159
FUEL INJECTOR AND FUEL TUBE ...............162
Component ............................................................162
Removal and Installation .......................................162
OIL PAN ...........................................................166
Component ............................................................166
Removal and Installation .......................................166
IGNITION COIL ................................................172
Component ............................................................172
Removal and Installation .......................................172
ROCKER COVER .............................................173
Component ............................................................173
Removal and Installation .......................................173
TIMING CHAIN .................................................176
Component ............................................................176
Removal and Installation .......................................177
CAMSHAFT ......................................................186
Component ............................................................186
Removal and Installation .......................................186
OIL SEAL .........................................................195
Removal and Installation of Valve Oil Seal ...........195
Removal and Installation of Front Oil Seal ............195
Removal and Installation of Rear Oil Seal ............196
CYLINDER HEAD ............................................198
Component ............................................................198
Removal and Installation .......................................198
Component ............................................................200
Disassembly and Assembly ..................................200
Inspection After Disassembly ................................202
REMOVAL AND INSTALLATION .............207
ENGINE ASSEMBLY ......................................207
Component ............................................................207
Removal and Installation .......................................207
DISASSEMBLY AND ASSEMBLY ............211
ENGINE UNIT ..................................................211
Component ............................................................211
Disassembly and Assembly ...................................212
Inspection After Disassembly ................................219
HOW TO SELECT PISTON AND BEARING ..230
How to Select Piston and Bearing .........................230
SERVICE DATA AND SPECIFICATIONS
(SDS) ..........................................................
238
SERVICE DATA AND SPECIFICATIONS
(SDS) ...............................................................
238
Standard and Limit ................................................238
K9K
SYMPTOM DIAGNOSIS ............................
249
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .........................
249
NVH Troubleshooting - Engine Noise ....................249
Use the Chart Below to Help You Find the Cause
of the Symptom .....................................................
250
PRECAUTION ............................................251
PRECAUTIONS ...............................................251
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
251
Precaution for Procedure without Cowl Top Cover ..251
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
251
Precaution for Drain Coolant .................................252
Precaution for Disconnecting Fuel Piping ..............252
Precaution for Removal and Disassembly .............252
Precaution for Inspection, Repair and Replace-
ment .......................................................................
252
Precaution for Assembly and Installation ..............252
Parts Requiring Angular Tightening .......................252
Precaution for Liquid Gasket .................................253
Precaution for Diesel Equipment ...........................253
Installation of Thread Inserts .................................257
PREPARATION .........................................258
PREPARATION ...............................................258
Special Service Tools ............................................258
Commercial Service Tools .....................................260
ON-VEHICLE MAINTENANCE ..................263

EM-6
< SYMPTOM DIAGNOSIS >[HR16DE]
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Use the Chart Below to Help You Find the Cause of the Symptom
INFOID:0000000001381372
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 noiseTyp e of
noiseOperating condition of engine
Source of
noiseCheck itemRefer-
ence page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
Top of en-
gine
Rocker
cover
Cylinder
headTicking or
clickingCA—AB—Tappet
noiseValve clearanceEM-21
Rattle C A — A B CCamshaft
bearing
noiseCamshaft journal oil
clearance
Camshaft runoutEM-123EM-123
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 clearanceEM-127
EM-130
Slap or
rapA——BBAPiston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsionEM-127EM-127
EM-127
EM-130
Knock A B C B B BConnect-
ing rod
bearing
noiseConnecting rod small
end clearance
Connecting rod bearing
oil clearanceEM-127EM-130
Knock A B — A B CMain bear-
ing noiseMain bearing oil clear-
ance
Crankshaft runoutEM-131EM-127
Front of
engine
Front cov-
erTapping or
tickingAA—BBBTiming
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operationEM-57
Front of
engineSqueak-
ing or fizz-
ingAB—B—CDrive belt
(Sticking
or slip-
ping)Drive belt deflection
EM-122
Creaking A B A B A BDrive belt
(Slipping)Idler pulley bearing op-
eration
Squall
CreakAB—BABWater
pump
noiseWater pump operationCO-21

PRECAUTIONS
EM-7
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001527642
The Supplemental Restraint System such as “AIR 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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, 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 unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
 Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Procedure without Cowl Top CoverINFOID:0000000001527633
When performing the procedure after removing cowl top cover, cover
the lower end of windshield.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000001527634
NOTE:
 This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
 Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.
 Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
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.
PIIB3706J

CAMSHAFT VALVE CLEARANCE
EM-21
< ON-VEHICLE MAINTENANCE >[HR16DE]
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CAMSHAFT VALVE CLEARANCE
Inspection and AdjustmentINFOID:0000000001381391
INSPECTION
Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1. Remove rocker cover. Refer to EM-47, "
Exploded View".
2. Measure the valve clearance with the following procedure:
a. Set No. 1 cylinder at TDC of its compression stroke.
 Rotate crankshaft pulley (2) clockwise and align TDC mark
(without paint mark) (A) to timing indicator (1) on front cover.
 At the same time, make sure that both intake and exhaust cam
noses of No. 1 cylinder face outside as shown.
 If they do not face outside, rotate crankshaft pulley once more
(360 degrees) and align as shown.
b. Use a feeler gauge, measure the clearance between valve lifter
and camshaft.
 By referring to the figure, measure the valve clearances at
locations marked “×” as shown in the table below [locations
indicated with black arrow ( ) shown] with a feeler gauge.
B : White paint mark (Not use for service)
PBIC3673E
1 : Camshaft (INT)
2 : Camshaft (EXH)
: Engine front
PBIC3359J
Valve Clearance: Refer to EM-123, "Camshaft".
SEM139D
A : No. 1 cylinder compression TDC
: Engine front
Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
Measurement po-
sitionEXH××
INT××
PBIC3707E

EM-22
< ON-VEHICLE MAINTENANCE >[HR16DE]
CAMSHAFT VALVE CLEARANCE
c. Rotate crankshaft pulley (2) one revolution (360 degrees) and
align TDC mark (without paint mark) (A) to timing indicator (1) on
front cover.
 By referring to the figure, measure the valve clearance at loca-
tions marked “×” as shown in the table below [locations indi-
cated with black arrow ( ) shown] with a feeler gauge.
3. If out of standard, perform adjustment procedure.
ADJUSTMENT
 Perform adjustment depending on selected head thickness of valve lifter.
1. Remove camshaft. Refer to EM-59, "
Exploded View".
2. Remove valve lifters at the locations that are out of the standard.
3. Measure the center thickness of the removed valve lifters with a
micrometer (A).
4. Use the equation below to calculate valve lifter thickness for replacement.
B : White paint mark (Not use for service)
PBIC3673E
A : No. 4 cylinder compression TDC
: Engine front
Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
Measurement
pointEXH××
INT××
PBIC3708E
PBIC3195J
Valve lifter thickness calculation: t = t1 + (C1– C2)
t = Valve lifter thickness to be replaced
t
1= Removed valve lifter thickness
C
1= Measured valve clearance
C
2= Standard valve clearance:
Intake : 0.30 mm (0.012 in)
Exhaust : 0.33 mm (0.013 in)

INTAKE MANIFOLD
EM-29
< ON-VEHICLE REPAIR >[HR16DE]
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INTAKE MANIFOLD
Exploded ViewINFOID:0000000001381398
Removal and InstallationINFOID:0000000001381399
REMOVAL
1. Remove the air duct (inlet) and air duct (between air cleaner case and electronic throttle control actuator).
Refer to EM-27, "
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 electronic throttle control actuator and position aside.
CAUTION:
 Handle electric throttle control actuator carefully and avoid impacts.
 Never disassemble or adjust electric throttle control actuator.
5. Disconnect the harness connector and EVAP 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 tank 3. EVAP hose
4. O-ring 5.EVAP canister purge volume control
solenoid valve6. Electric throttle control actuator
7. Water hose (Northern Europe models) 8. Water hose (Northern Europe models) 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