2007 NISSAN 350Z Engine Mechanical Workshop Manual

PREPARATION
EM-9
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2006 November2007 350Z
(—)
Piston ring expanderRemoving and installing piston ring
(—)
Valve guide driftRemoving and installing valve guide
Intake and Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.
(—)
Valve guide reamer(1): Reaming valve guide inner hole
(2): Reaming hole for oversize valve guide
Intake and Exhaust:
d
1 : 6.0 mm (0.236 in) dia.
d
2 : 10.2 mm (0.402 in) dia.
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleanerReconditioning the exhaust system threads
before installing a new air fuel ratio sensor
and heated oxygen sensor (Use with anti-
seize lubricant shown below.)
a: J-43897-18 [18 mm (0.71 in) dia.] for
zirconia heated oxygen sensor and air fuel
ratio sensor
b: J-43897-12 [12 mm (0.47 in) dia.] for
titania heated oxygen sensor
(—)
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL
specification MIL-A-907)Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads (Kent-Moore No.)
Tool nameDescription
NT030
NT015
NT016
AEM488
AEM489

EM-10
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 November2007 350Z
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting — Engine NoiseNBS0000B
PBIC4942E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
EM-11
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2006 November2007 350Z
Use the Chart Below to Help You Find the Cause of the Symptom.NBS0000C
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 noiseTy p e o f
noiseOperating condition of engine
Source of
noiseCheck itemRefer-
ence page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
Top of
engine
Rocker
cover
Cylinder
headTicking or
clickingCA—AB—Tappet
noiseValve clearanceEM-80
Rattle C A — A B CCamshaft
bearing
noiseCamshaft runout
Camshaft journal oil
clearanceEM-74EM-74
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil panSlap or
knock—A—B B—Piston pin
noisePiston to piston pin oil
clearance
Connecting rod bush-
ing oil clearanceEM-125
EM-127
Slap or
rapA——BBAPiston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsionEM-129EM-126
EM-126
EM-127
Knock ABCBBBConnect-
ing rod
bearing
noiseConnecting rod bush-
ing oil clearance
Connecting rod bear-
ing oil clearanceEM-127EM-131
Knock A B — A B CMain
bearing
noiseMain bearing oil clear-
ance
Crankshaft runoutEM-132EM-131
Front of
engine
Timin g
chain
caseTapping or
tickingAA—BBBTimin g
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operationEM-60
EM-53
Front of
engineSqueak-
ing or fizz-
ingAB—B—CDrive belts
(Sticking
or slip-
ping)Drive belts deflection
EM-12
CreakingABABABDrive belts
(Slipping)Idler pulley bearing
operation
Squall
CreakAB—BABWater
pump
noiseWater pump operationCO-23,
"WATER
PUMP"

EM-12
DRIVE BELTS
Revision: 2006 November2007 350Z
DRIVE BELTSPFP:02117
Checking Drive BeltsNBS0000D
WARNING:
Be sure to perform this step when engine is stopped.

Make sure that the indicator (C) (notch on fixed side) of drive belt auto-tensioner is within the possible use
range (A).
NOTE:
Check the drive belt auto-tensioner indication when the engine is cold.

When new drive belt is installed, the indicator (C) (notch on fixed side) should be within the range (B) in
the figure.

Visually check entire drive belt for wear, damage or cracks.

If the indicator (C) (notch on fixed side) is out of the possible use range or belts is damaged, replace drive
belt.
Tension AdjustmentNBS0000E
Belt tension is not necessary, as it is automatically adjusted by drive belt auto-tensioner.
Removal and InstallationNBS0000F
REMOVAL
1. Remove undercover with power tool.
2. Remove reservoir tank. Refer to CO-13, "
RADIATOR" .
1. Power steering oil pump 2. Alternator 3. Drive belt auto-tensioner
4. Crankshaft pulley 5. A/C compressor 6. Idler pulley
7. Drive belt 8. Idler pulley
A. Possible use range B.Range when new drive belt is
installedC. Indicator
D. View D
PBIC4943E

DRIVE BELTS
EM-13
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2006 November2007 350Z
3. While securely holding the square hole (A) in pulley center of
auto tensioner (1) with a spinner handle, move spinner handle in
the direction of arrow (loosening direction of drive belt).
CAUTION:
Avoid placing hand in a location where pinching may occur
if the holding tool accidentally comes off.
4. Under the above condition, insert a metallic bar of approximately
6 mm (0.24 in) diameter [hexagonal wrench (C) shown as exam-
ple in the figure] through the holding boss (B) to lock auto-ten-
sioner pulley arm.
5. Remove drive belt.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:

Make sure drive belt is securely installed around all pulleys.

Make sure drive belt is correctly engaged with the pulley groove.

Check for engine oil and engine coolant are not adhered drive belt and pulley groove.
INSPECTION AFTER INSTALLATION
Turn crankshaft pulley clockwise several times to equalize tension between each pulley, and then confirm ten-
sion of drive belt at indicator (notch on fixed side) is within the possible use range. Refer to EM-12, "
Checking
Drive Belts" .
ComponentsNBS006TG

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and Installation of Drive Belt Auto-TensionerNBS006TH
REMOVAL
1. Remove drive belt. Refer to EM-12, "Removal and Installation" .

Keep auto-tensioner pulley arm locked after drive belt is removed.
2. Remove auto-tensioner and idler pulley.

Keep auto-tensioner pulley arm locked to install or remove auto-tensioner.
: Loosing direction of drive belt
PBIC4944E
1. Front timing chain case 2. Drive belt auto-tensioner 3. Idler pulley
4. Idler pulley
PBIC4945E

EM-14
DRIVE BELTS
Revision: 2006 November2007 350Z
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
If there is damage greater than peeled paint, replace drive belt auto-tensioner.

AIR CLEANER AND AIR DUCT
EM-15
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2006 November2007 350Z
AIR CLEANER AND AIR DUCTPFP:16500
Removal and InstallationNBS0000G

Refer to GI-11, "Components" for symbol marks in the figure.
REMOVAL
1. Remove clips, and slide air duct (inlet) frontward, disengage
clips and air cleaner case.
NOTE:
When removing air duct (inlet), remove front bumper and
bumper fascia stay radiator core support center. Refer to EI-14,
"FRONT BUMPER" and BL-19, "RADIATOR CORE SUPPORT"
.
2. Disconnect harness connector from mass air flow sensor.
1. Mass air flow sensor (RH) 2. Air cleaner filter 3. Holder
4. Bracket 5. Air duct (inlet) 6. Grommet
7. Air cleaner case (RH) 8. Clamp 9. Air duct (RH)
10. Air hose 11. Clamp 12. PCV hose
13. Air duct (LH) 14. Mass air flow sensor (LH) 15. Bracket
16. Air cleaner case (LH) 17. Air duct (inlet)
A. To electric throttle control actuator B. To rocker cover (left bank)
PBIC4986E
KBIA1734E

EM-16
AIR CLEANER AND AIR DUCT
Revision: 2006 November2007 350Z
3. Disconnect PCV hose.
4. Remove air cleaner case/mass air flow sensor assembly and air duct assembly disconnecting their joints.

Add marks as necessary for easier installation.
5. Remove mass air flow sensor from air cleaner case.
CAUTION:
Handle mass air flow sensor with care.

Do not shock it.

Do not disassemble it.

Do not touch its sensor.
INSPECTION AFTER REMOVAL
Inspect air duct for crack or tear.

If anything found, replace air duct.
INSTALLATION
Note the following, and install in the reverse order of removal.

Align marks. Attach each joint. Screw clamps firmly.
CAUTION:
Keep the clearance more than 5 mm between tower bar and air duct.
Changing Air Cleaner FilterNBS0000H
REMOVAL
1. Unhook clips, and lift holder.
2. Remove air cleaner filter.
INSTALLATION
Installation is the reverse order of removal.
PBIC1118E