Rocker NISSAN 350Z 2007 Z33 Engine Mechanical Workshop Manual

EM-2Revision: 2006 November2007 350Z ROCKER COVER ..................................................... 40
Removal and Installation ........................................ 40
REMOVAL ........................................................... 40
INSTALLATION .................................................... 42
FRONT TIMING CHAIN CASE ................................. 44
Removal and Installation ........................................ 44
REMOVAL ........................................................... 44
INSTALLATION .................................................... 47
INSPECTION AFTER INSTALLATION ................ 51
TIMING CHAIN .......................................................... 53
Removal and Installation ........................................ 53
REMOVAL ........................................................... 54
INSPECTION AFTER REMOVAL ........................ 60
INSTALLATION .................................................... 60
INSPECTION AFTER INSTALLATION ................ 71
CAMSHAFT ............................................................... 72
Removal and Installation ........................................ 72
REMOVAL ........................................................... 72
INSPECTION AFTER REMOVAL ........................ 74
INSTALLATION .................................................... 77
INSPECTION AFTER INSTALLATION ................ 79
Valve Clearance ...................................................... 80
INSPECTION ....................................................... 80
ADJUSTMENT .................................................... 84
OIL SEAL .................................................................. 86
Removal and Installation of Valve Oil Seal ............. 86
REMOVAL ........................................................... 86
INSTALLATION .................................................... 86
Removal and Installation of Front Oil Seal ............. 87
REMOVAL ........................................................... 87
INSTALLATION .................................................... 87
Removal and Installation of Rear Oil Seal .............. 87
REMOVAL ........................................................... 87
INSTALLATION .................................................... 88
CYLINDER HEAD ..................................................... 89
On-Vehicle Service ................................................. 89
CHECKING COMPRESSION PRESSURE ......... 89
Removal and Installation ........................................ 90
REMOVAL ........................................................... 90
INSPECTION AFTER REMOVAL ........................ 91
INSTALLATION .................................................... 92
INSPECTION AFTER INSTALLATION ................ 93
Disassembly and Assembly .................................... 94
DISASSEMBLY ................................................... 94
ASSEMBLY ......................................................... 95
Inspection After Disassembly ................................. 96
VALVE DIMENSIONS .......................................... 96
VALVE GUIDE CLEARANCE .............................. 97
VALVE GUIDE REPLACEMENT ......................... 97
VALVE SEAT CONTACT ..................................... 99
VALVE SEAT REPLACEMENT ........................... 99
VALVE SPRING SQUARENESS .......................100
VALVE SPRING DIMENSIONS AND VALVE
SPRING PRESSURE LOAD .............................100
ENGINE ASSEMBLY ..............................................101
Removal and Installation ......................................101
REMOVAL .........................................................102
INSTALLATION ..................................................104
INSPECTION AFTER INSTALLATION ..............106CYLINDER BLOCK .................................................107
Disassembly and Assembly ..................................107
DISASSEMBLY ..................................................108
ASSEMBLY ........................................................ 111
How to Select Piston and Bearing ........................119
DESCRIPTION ..................................................119
HOW TO SELECT PISTON ...............................119
HOW TO SELECT CONNECTING ROD BEAR-
ING .....................................................................120
HOW TO SELECT MAIN BEARING ..................122
Inspection After Disassembly ................................125
CRANKSHAFT END PLAY ................................125
CONNECTING ROD SIDE CLEARANCE .........125
PISTON TO PISTON PIN OIL CLEARANCE .....125
PISTON RING SIDE CLEARANCE ...................126
PISTON RING END GAP ..................................126
CONNECTING ROD BEND AND TORSION .....127
CONNECTING ROD BIG END DIAMETER ......127
CONNECTING ROD BUSHING OIL CLEAR-
ANCE .................................................................127
CYLINDER BLOCK DISTORTION ....................128
MAIN BEARING HOUSING INNER DIAMETER .129
PISTON TO CYLINDER BORE CLEARANCE ..129
CRANKSHAFT MAIN JOURNAL DIAMETER ...130
CRANKSHAFT PIN JOURNAL DIAMETER ......131
CRANKSHAFT OUT-OF-ROUND AND TAPER .131
CRANKSHAFT RUNOUT ..................................131
CONNECTING ROD BEARING OIL CLEAR-
ANCE .................................................................131
MAIN BEARING OIL CLEARANCE ...................132
CRUSH HEIGHT OF MAIN BEARING ..............133
CRUSH HEIGHT OF CONNECTING ROD
BEARING ...........................................................133
LOWER CYLINDER BLOCK BOLT OUTER
DIAMETER ........................................................133
CONNECTING ROD BOLT OUTER DIAMETER .134
FLYWHEEL DEFLECTION (M/T MODELS) ......134
MOVEMENT AMOUNT OF FLYWHEEL (M/T
MODELS) ...........................................................134
DRIVE PLATE (A/T MODELS) ...........................135
OIL JET ..............................................................135
OIL JET RELIEF VALVE ....................................135
SERVICE DATA AND SPECIFICATIONS (SDS) ....136
Standard and Limit ................................................136
GENERAL SPECIFICATIONS ...........................136
INTAKE MANIFOLD COLLECTOR, INTAKE
MANIFOLD AND EXHAUST MANIFOLD ..........136
SPARK PLUG ....................................................137
CAMSHAFT AND CAMSHAFT BEARING .........137
CYLINDER HEAD ..............................................139
CYLINDER BLOCK ............................................142
PISTON, PISTON RING AND PISTON PIN ......143
CONNECTING ROD ..........................................144
CRANKSHAFT ...................................................145
MAIN BEARING .................................................146
CONNECTING ROD BEARING .........................147

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
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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"

AIR CLEANER AND AIR DUCT
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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

INTAKE MANIFOLD COLLECTOR
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7. Loosen mounting bolts with power tool in reverse order as
shown in the figure to remove intake manifold collector.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
8. Remove PCV hose [between intake manifold collector and rocker cover (right bank)].
INSTALLATION
Note the following, and install in the reverse order of removal.
Intake Manifold Collector
If stud bolts were removed, install them and tighten to the specified torque below.

Tighten mounting bolts in numerical order as shown in the fig-
ure.
NOTE:
Tighten mounting bolts to secure gasket and intake manifold col-
lector.
Water Hose

Insert hose by 27 to 32 mm (1.06 to 1.26 in) from connector end.

Clamp hose at location of 3 to 7 mm (0.12 to 0.28 in) from hose end.
Electric Throttle Control Actuator

Install in the reverse order of removal.

Tighten mounting bolts in numerical order as shown in the fig-
ure.
CAUTION:

Handle carefully to avoid any shock to electric throttle
control actuator.

Do not disassemble.

The figure shows the electric throttle control actuator
(bank1) viewed from the air duct side.

Viewed from the air duct side, order of tightening mount-
ing bolts of electric throttle control actuator (bank2) is
the same as that of the electric throttle control actuator
(bank1).

Perform the “Throttle Valve Closed Position Learning” when harness connector of electric throttle control
actuator is disconnected. Refer to EC-77, "
Throttle Valve Closed Position Learning" .

Perform the “Idle Air Volume Learning” and “Throttle Valve Closed Position Learning” when electric throt-
tle control actuator is replaced. Refer to EC-77, "
Idle Air Volume Learning" .
: Engine front
PBIC4949E
: 10.8 N·m (1.1 kg-m, 8 ft-lb)
: Engine front
PBIC4949E
PBIC4948E

IGNITION COIL
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IGNITION COILPFP:22448
Removal and InstallationNBS0000M

Refer to GI-11, "Components" for symbol marks in the figure.
REMOVAL
1. Remove engine cover with power tool. Refer to EM-17, "INTAKE MANIFOLD COLLECTOR" .
2. Remove air cleaner case and air duct. Refer to EM-15, "
AIR CLEANER AND AIR DUCT" .
3. Move aside harness, harness bracket, and hoses located above ignition coil.
4. Remove electric throttle control actuator. Refer to EM-17, "
INTAKE MANIFOLD COLLECTOR" .
5. Disconnect harness connector from ignition coil.
6. Remove ignition coil.
CAUTION:
Do not shock it.
INSTALLATION
Installation is the reverse order of removal.
1. Ignition coil 2. Spark plug 3. Rocker cover
A. Left bank
PBIC4988E

EM-32
SPARK PLUG (IRIDIUM-TIPPED TYPE)
Revision: 2006 November2007 350Z
SPARK PLUG (IRIDIUM-TIPPED TYPE)PFP:21478
Removal and InstallationNBS0000N

Refer to GI-11, "Components" for symbol marks in the figure.
REMOVAL
1. Remove engine cover with power tool. Refer to EM-17, "INTAKE MANIFOLD COLLECTOR" .
2. Remove ignition coil. Refer to EM-31, "
IGNITION COIL" .
3. Remove spark plug using spark plug wrench (commercial ser-
vice tool).
CAUTION:
Do not drop or shock it.
INSPECTION AFTER REMOVAL
CAUTION:

Do not drop or shock spark plug.
1. Ignition coil 2. Spark plug 3. Rocker cover
A. Left bank
PBIC4988E
a : 14 mm (0.55 in)
PBIC5043E
MakeDENSO
Standard typeFXE22HR-11
Gap (Nominal) : 1.1 mm (0.043 in)

EM-40
ROCKER COVER
Revision: 2006 November2007 350Z
ROCKER COVERPFP:13264
Removal and InstallationNBS0000P

Refer to GI-11, "Components" for symbol marks in the figure.
REMOVAL
1. Remove engine cover. Refer to EM-17, "INTAKE MANIFOLD COLLECTOR" .
2. Remove intake manifold collector. Refer to EM-17, "
INTAKE MANIFOLD COLLECTOR" .
3. Separate engine harness removing their brackets from rocker covers.
4. Remove ignition coil. Refer to EM-31, "
IGNITION COIL" .
1. PCV hose 2. Clamp 3. Ignition coil
4. Spark plug 5. PCV valve 6. O-ring
7. Rocker cover gasket (right bank) 8. Rocker cover (right bank) 9. O-ring
10. Camshaft position sensor (bank 1) 11.Exhaust valve timing control posi-
tion sensor (bank 1)12. Camshaft position sensor (bank 2)
13.Exhaust valve timing control position
sensor (bank 2)14. Rocker cover gasket (left bank) 15. Rocker cover (left bank)
16. PCV hose 17. Oil catcher 18. Oil filler cap
19. PCV hose
A. To intake manifold collector B. Refer to EM-40
C. Camshaft bracket side
D. To air duct
PBIC4964E

ROCKER COVER
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5. Remove camshaft position sensor and exhaust valve timing
control position sensor.
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at
sensor tip.

Do not place sensors in a location where they are exceed
to magnetism.
6. Remove PCV hoses from rocker covers.
7. Remove PCV valve and O-ring from rocker cover, if necessary.
8. Remove oil filler cap from rocker cover, if necessary.
9. Loosen mounting bolts with power tool in reverse order as
shown in the figure.
10. Remove rocker cover gaskets from rocker covers.
11. Use scraper to remove all trances of liquid gasket from cylinder head and camshaft bracket (No. 1).
CAUTION:
Do not scratch or damage the mating surface when cleaning off old liquid gasket.
A : Keep off any magnetic materials
PBIC5150E
: Engine front
PBIC4990E

EM-42
ROCKER COVER
Revision: 2006 November2007 350Z
INSTALLATION
1. Apply liquid gasket with tube presser [SST: WS39930000 ( —
)] to joint part among rocker cover, cylinder head and cam-
shaft bracket (No. 1) as follows:
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-45, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
NOTE:
The figure shows an example of left bank side [zoomed in
shows camshaft bracket (No. 1)].
a. Refer to the figure “a” to apply liquid gasket to joint part of cam-
shaft bracket (No. 1) and cylinder head.
b. Refer to the figure “b” to apply liquid gasket to the figure “a”
squarely.
2. Install new rocker cover gasket to rocker cover.
3. Install rocker cover.

Check if rocker cover gasket is not dropped from installation groove of rocker cover.
4. Tighten bolts in two steps separately in numerical order as
shown in the figure.
5. Install oil filler cap to rocker cover (left bank), if removed.
6. Install new O-ring and PCV valve to rocker cover (right bank), if removed.
7. Install PCV hose.

Insert PCV hose by 25 to 30 mm (0.98 to 1.18 in) from connector end.

When installing, be careful not to twist or come in contact with other parts.
PBIC2474E
: Engine front
1st step
: 2.0 N·m (0.2 kg-m, 18 in-lb)
2nd step
: 8.3 N·m (0.85 kg-m, 73 in-lb)
PBIC4990E

ROCKER COVER
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Install PCV hose between right and left rocker covers with its identification paint facing upward (right
rocker cover side). Refer to component figure in EM-40, "
Removal and Installation" .
8. Install in the reverse order of removal after this step.