2007 NISSAN TIIDA front

HOW TO SELECT PISTON AND BEARING
EM-117
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HOW TO SELECT PISTON AND BEARING
DescriptionINFOID:0000000001381436
 The identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.
 For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the
measurement with the values of each selection table.
 For details of the measurement method of each part, the reuse standards and the selection method of the
selective fitting parts, follow the procedures.
Connecting Rod BearingINFOID:0000000001381437
WHEN NEW CONNECTING ROD AND CRANKSHAFT ARE USED
1. Apply connecting rod big end diameter grade stamped (C) on
connecting rod side face to the row in the “Connecting Rod
Bearing Selection Table”.
2. Apply crankshaft pin journal diameter grade stamped (B) on
crankshaft front side to the column in the “Connecting Rod Bear-
ing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Connecting Rod Bearing Selection
Table”.
4. Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.
WHEN CONNECTING ROD AND CRANKSHAFT ARE REUSED
1. Measure the dimensions of the connecting rod big end diameter and crankshaft pin journal diameter indi-
vidually. Refer to EM-108, "
Inspection".
Selection points Selection parts Selection items Selection methods
Between cylinder block and
crankshaftMain bearingMain bearing grade (bearing
thickness)Determined by match of cylin-
der block bearing housing
grade (inner diameter of hous-
ing) and crankshaft journal
grade (outer diameter of jour-
nal)
Between crankshaft and con-
necting rodConnecting rod bearingConnecting rod bearing grade
(bearing thickness)Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer di-
ameter determine connecting
rod bearing selection.
A: Oil hole
B : Cylinder number
D: Front mark
PBIC3756E
A : Main journal diameter grade (No. 1 to 5 from left)
B : Crankshaft pin journal diameter grade (No. 1 to 4 from left)
PBIC3757E

HOW TO SELECT PISTON AND BEARING
EM-119
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In grinding crankshaft pin to use undersize bearings, keep the
fillet R (A) [0.8 - 1.2 mm (0.031 - 0.047 in)].
Main BearingINFOID:0000000001381438
HOW TO SELECT MAIN BEARING
When New Cylinder Block and Crankshaft Are Used
1. “Main Bearing Selection Table” rows correspond to main bearing
housing grade on left side of cylinder block.
 If there is a corrected stamp mark (B) on cylinder block, use it
as a correct reference.
2. Apply main journal diameter grade stamped on crankshaft front
side to column in the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing.
NOTE:
Service part is available as a set of both upper and lower.
When Cylinder Block and Crankshaft Are Reused
1. Measure the dimensions of the cylinder block main bearing housing inner diameter and crankshaft main
journal diameter individually. Refer to EM-108, "
Inspection".
2. Apply the measured dimension to the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing. Bearing undersize table:
Refer to EM-130, "
Connecting Rod Bearing".
PBIC3263J
A : Basic stamp mark
: Engine front
PBIC3760E
A : Main journal diameter grade (No. 1 to 5 from left)
B : Crankshaft pin journal diameter grade (No. 1 to 4 from left)
PBIC3757E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
EM-133
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Use the Chart Below to Help You Find the Cause of the SymptomINFOID:0000000001337775
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 relatedA. Rotational mechanism B. Water pump C. Timing chain
D. Drive belt E. Crankshaft pulley F. A/C compressor
G. Water pump H. Generator I. Tension pulley
J. Valve mechanism K. Valves
Location
of noiseType 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-238
Rattle C A — A B CCamshaft
bearing
noiseCamshaft journal oil
clearance
Camshaft runoutEM-186EM-186
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 bushing
oil clearanceEM-219
EM-219
Slap or
rapA——BBAPiston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsionEM-219EM-219
EM-219
EM-219
Knock A B C B B BConnect-
ing rod
bearing
noiseConnecting rod bushing
oil clearance
Connecting rod bearing
oil clearanceEM-219EM-219
Knock A B — A B CMain bear-
ing noiseMain bearing oil clear-
ance
Crankshaft runoutEM-219EM-219
Front of
engine
Front cov-
erTapping or
tickingAA—BBBTiming
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operationEM-177
Front of
engineSqueak-
ing or fizz-
ingAB—B—CDrive belt
(Sticking
or slip-
ping)Drive belt deflection
EM-142
CreakingA B ABABDrive belt
(Slipping)Idler pulley bearing op-
eration
Squall
CreakAB—BABWater
pump
noiseWater pump operationCO-44

EM-134
< PRECAUTION >[MR18DE]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001527643
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:0000000001337763
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:0000000001337764
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

EM-148
< ON-VEHICLE MAINTENANCE >[MR18DE]
CAMSHAFT VALVE CLEARANCE
CAMSHAFT VALVE CLEARANCE
Valve ClearanceINFOID:0000000001337799
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-173, "
Removal and Installation".
2. Measure the valve clearance with the following procedure:
a. Set No. 1 cylinder at TDC of its compression stroke.
 Rotate crankshaft pulley (1) clockwise and align TDC mark (no paint) (B) to timing indicator (A) on front
cover.
 At the same time, make sure that both intake and exhaust cam
noses of No. 1 cylinder face inside ( ) as shown.
 If they do not face inside, rotate crankshaft pulley once more
(360 degrees) and align as shown.
b. Use a feeler gauge, measure the clearance between valve lifter
and camshaft.
Valve clearance:
Unit: mm (in)
*: Approximately 80°C (176°F) C : White paint mark (Not use for service)
PBIC3960E
1 : Camshaft (INT)
2 : Camshaft (EXH)
: Engine front
PBIC3359J
PBIC3192J
Cold Hot * (reference data)
Intake 0.26 - 0.34 (0.010 - 0.013) 0.304 - 0.416 (0.012 - 0.016)
Exhaust 0.29 - 0.37 (0.011 - 0.015) 0.308 - 0.432 (0.012 - 0.017)

CAMSHAFT VALVE CLEARANCE
EM-149
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 By referring to the figure, measure the valve clearances at
locations marked “×” as shown in the table below [locations
indicated with black arrow ( )] with a feeler gauge.
 No. 1 cylinder compression TDC
c. Set No.4 cylinder at TDC of its compression stroke.
 Rotate crankshaft pulley (1) one revolution (360 degrees) and
align TDC mark (no paint) (B) to timing indicator (A) 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 ( )] with a feeler gauge.
 No. 4 cylinder compression TDC
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-186, "
Removal and Installation".
2. Remove valve lifters at the locations that are out of the standard.
Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
No. 1 cylinder at
compression TDCEXH× ×
INT× ×
A : Exhaust side
B : No.1 cylinder
C : No.2 cylinder
D : No.3 cylinder
E : No.4 cylinder
F : Intake side
: Engine front
PBIC3193J
C : White paint mark (Not use for service)
PBIC3960E
Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
No. 4 cylinder at
compression TDCEXH × ×
INT × ×
A : Exhaust side
B : No.1 cylinder
C : No.2 cylinder
D : No.3 cylinder
E : No.4 cylinder
F : Intake side
: Engine front
PBIC3194J

COMPRESSION PRESSURE
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COMPRESSION PRESSURE
Checking Compression PressureINFOID:0000000001346452
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-1035, "
Inspection".
3. Disconnect fuel pump fuse (1) to avoid fuel injection during mea-
surement.
4. Remove engine cover. Refer to EM-156, "
Component".
5. Remove ignition coil and spark plug from each cylinder. Refer to EM-145, "
Removal and Installation".
6. Connect an engine tachometer (not required in use of CONSULT-III).
7. Install a suitable compression tester with an adapter onto spark
plug hole.
 Use the adapter whose picking up end inserted to spark plug
hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
8. 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.
Compression pressure:
Unit: kPa (bar, kg/cm2 psi) /rpm
CAUTION:
Always use a fully charged battery to obtain the specified engine speed.
 If the engine speed is out of the specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.
: Vehicle front
PBIA9861J
LBIA0459E
SBIA0533E
Standard Minimum Differential limit between cylinders
1,500 (15.0, 15.3, 217.6) / 200 1,200 (12.0, 12.2, 174) / 200 100 (1, 1, 15) / 200

DRIVE BELT AUTO TENSIONER
EM-153
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ON-VEHICLE REPAIR
DRIVE BELT AUTO TENSIONER
ComponentINFOID:0000000001337780
Removal and Installation of Drive Belt Auto TensionerINFOID:0000000001337781
REMOVAL
1. Remove drive belt. Refer to EM-142, "Removal and Installation".
2. Release the fixed drive belt auto-tensioner pulley.
3. Loosen bolt and remove drive belt auto-tensioner.
NOTE:
Use TORX socket (size T50).
4. Remove idler pulley and bracket (models without A/C).
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
 When installing drive belt auto-tensioner, be careful not to interfere with water pump pulley.
 If there is damage greater than peeled paint, replace drive belt auto-tensioner and/or idler pulley.
1. Front cover 2. Drive belt auto–tensioner 3. Idler pulley (models without A/C)
4. Bracket (models without A/C) 5. Shaft (models without A/C)
PBIC4698E