belt NISSAN 350Z 2007 Z33 Engine Mechanical Workshop Manual

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ENGINE MECHANICAL
B ENGINE
CONTENTS
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SECTION EM
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ENGINE MECHANICAL
PRECAUTIONS .......................................................... 3
Precautions for Procedures without Cowl Top Cover ..... 3
Precautions for Battery Service ................................ 3
Precautions for Drain Engine Coolant and Engine
Oil ............................................................................. 3
Precautions for Disconnecting Fuel Piping .............. 3
Precautions for Removal and Disassembly ............. 3
Precautions for Inspection, Repair and Replace-
ment ......................................................................... 3
Precautions for Assembly and Installation ............... 3
Parts Requiring Angle Tightening ............................. 4
Precautions for Liquid Gasket .................................. 4
REMOVAL OF LIQUID GASKET SEALING .......... 4
LIQUID GASKET APPLICATION PROCEDURE ..... 4
PREPARATION ........................................................... 6
Special Service Tools ............................................... 6
Commercial Service Tools ........................................ 7
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING .............................................. 10
NVH Troubleshooting — Engine Noise .................. 10
Use the Chart Below to Help You Find the Cause
of the Symptom. ...................................................... 11
DRIVE BELTS ........................................................... 12
Checking Drive Belts .............................................. 12
Tension Adjustment ................................................ 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 13
INSPECTION AFTER INSTALLATION ............... 13
Components ........................................................... 13
Removal and Installation of Drive Belt Auto-Ten-
sioner ..................................................................... 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 14
AIR CLEANER AND AIR DUCT ............................... 15
Removal and Installation ........................................ 15
REMOVAL ........................................................... 15
INSPECTION AFTER REMOVAL ....................... 16INSTALLATION ................................................... 16
Changing Air Cleaner Filter .................................... 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16
INTAKE MANIFOLD COLLECTOR .......................... 17
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 19
INTAKE MANIFOLD ................................................. 20
Removal and Installation ........................................ 20
REMOVAL ........................................................... 20
INSPECTION AFTER REMOVAL ....................... 21
INSTALLATION ................................................... 21
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST .......................................................................... 22
Removal and Installation ........................................ 22
REMOVAL ........................................................... 22
INSPECTION AFTER REMOVAL ....................... 24
INSTALLATION ................................................... 24
OIL PAN AND OIL STRAINER ................................. 26
Removal and Installation ........................................ 26
REMOVAL ........................................................... 26
INSPECTION AFTER REMOVAL ....................... 28
INSTALLATION ................................................... 28
INSPECTION AFTER INSTALLATION ................ 30
IGNITION COIL ......................................................... 31
Removal and Installation ........................................ 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 31
SPARK PLUG (IRIDIUM-TIPPED TYPE) ................. 32
Removal and Installation ........................................ 32
REMOVAL ........................................................... 32
INSPECTION AFTER REMOVAL ....................... 32
INSTALLATION ................................................... 33
FUEL INJECTOR AND FUEL TUBE ........................ 34
Removal and Installation ........................................ 34
REMOVAL ........................................................... 34
INSTALLATION ................................................... 37
INSPECTION AFTER INSTALLATION ................ 39

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"

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
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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.

EM-18
INTAKE MANIFOLD COLLECTOR
Revision: 2006 November2007 350Z
2. Remove engine cover (1) (2) with power tool.
3. Remove air cleaner case and air duct (RH, LH). Refer to EM-15, "
AIR CLEANER AND AIR DUCT" .
4. Remove electric throttle control actuator (bank1, bank2) as follows:
NOTE:
When removing only intake manifold collector, move electric throttle control actuator without disconnect-
ing water hose.
a. Drain engine coolant.
CAUTION:
Perform this step when engine is cold.
b. Disconnect water hoses from electric throttle control actuator. When engine coolant is not drained from
radiator, attach plug to water hoses to prevent engine coolant leakage.
CAUTION:
Do not spill engine coolant on drive belt.
c. Disconnect harness connector.
d. Loosen mounting bolts in reverse order as shown in the figure.
CAUTION:

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

Do not disassemble.
NOTE:

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

Viewed from the air duct side, order of loosening mounting
bolts of electric throttle control actuator (bank2) is the same
as that of the electric throttle control actuator (bank1).
5. Disconnect vacuum hose, PCV hose and EVAP hose from intake manifold collector.
6. Remove EVAP canister purge volume control solenoid valve and EVAP tube assembly from intake mani-
fold collector.
PBIC4987E
PBIC4948E

EM-22
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 November2007 350Z
EXHAUST MANIFOLD AND THREE WAY CATALYSTPFP:14004
Removal and InstallationNBS0000K

Refer to GI-11, "Components" for symbol marks in the figure.
REMOVAL
WARNING:
Perform the work when the exhaust and cooling system have completely cooled down.
NOTE:
When removing right bank side parts only, step 3, 10 and 11 are unnecessary.
1. Remove tower bar. Refer to FSU-20, "
TOWER BAR" .
2. Remove engine cover with power tool. Refer to EM-17, "
INTAKE MANIFOLD COLLECTOR" .
3. Drain engine coolant. Refer to CO-10, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
4. Remove air cleaner case and air duct. Refer to EM-15, "
AIR CLEANER AND AIR DUCT" .
1. Heated oxygen sensor (bank 1) 2. Air fuel ratio sensor (bank 1) 3.Exhaust manifold cover
(upper)
4. Exhaust manifold (right bank) 5. Exhaust manifold cover (lower) 6. Gasket
7. Ring gasket 8. Three way catalyst (right bank) 9. Gasket
10. Heated oxygen sensor (bank 2) 11. Gasket 12. Three way catalyst (left bank)
13. Ring gasket 14. Exhaust manifold (left bank) 15. Exhaust manifold cover (lower)
16. Gasket 17. Air fuel ratio sensor (bank 2) 18.Exhaust manifold cover
(upper)
PBIC4952E

OIL PAN AND OIL STRAINER
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1. Drain engine oil. Refer to LU-7, "Changing Engine Oil" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine oil on drive belts.
2. Remove undercover with power tool.
3. Remove engine assembly from the vehicle, and separate front suspension member and transmission
from engine. Refer to EM-101, "
ENGINE ASSEMBLY" .
4. Lift the engine with hoist, and mount it onto widely use engine stand. Refer to EM-108, "
DISASSEMBLY" .
5. Remove alternator. Refer to SC-20, "
CHARGING SYSTEM" .
6. Remove starter motor. Refer to SC-8, "
STARTING SYSTEM" .
7. Remove idler pulley and bracket assembly. Refer to EM-53, "
TIMING CHAIN" .
8. Remove oil filter, as necessary. Refer to LU-9, "
OIL FILTER" .
9. Remove oil temperature sensor, as necessary.
10. Remove oil pan (lower) as follows:
a. Loosen mounting bolts with power tool in reverse order as
shown in the figure to remove.
b. Insert seal cutter (SST) between oil pan (upper) and oil pan
(lower).
CAUTION:

Be careful not to damage the mating surfaces.

Do not insert screwdriver, this will damage the mating
surface.
11. Remove oil strainer.
12. Remove rear cover plate.
13. Loosen mounting bolts with power tool in reverse order as
shown in the figure to remove oil pan (upper).

I n s e r t s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J 3 7 2 2 8 ) ] b e t w e e n o i l
pan (upper) and cylinder block. Slide seal cutter by tapping on
the side of tool with hammer. Remove oil pan (upper).
CAUTION:

Be careful not to damage mating surfaces.

Do not insert screwdriver, this will damage the mating
surface.
: Engine front
PBIC4956E
SEM365E
: Engine frontPBIC4957E

EM-44
FRONT TIMING CHAIN CASE
Revision: 2006 November2007 350Z
FRONT TIMING CHAIN CASEPFP:13599
Removal and InstallationNBS0000Q
NOTE:

This section describes removal/installation procedure of front timing chain case and timing chain related
parts without removing oil pan (upper) on vehicle.

When oil pan (upper) needs to be removed or installed, or when rear timing chain case is removed or
installed, remove oil pans (upper and lower) first. Then remove front timing chain case, timing chain
related parts, and rear timing chain case in this order, and install in the reverse order of removal. Refer to
EM-53, "
TIMING CHAIN" .

Refer to EM-53, "TIMING CHAIN" for component parts location.
REMOVAL
1. Remove engine cover with power tool. Refer to EM-17, "INTAKE MANIFOLD COLLECTOR" .
2. Remove undercover with power tool.
3. Release the fuel pressure. Refer to EC-79, "
FUEL PRESSURE RELEASE" .
4. Disconnect the battery cable from the negative terminal.
5. Drain engine oil. Refer to LU-7, "
Changing Engine Oil" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine oil on drive belts.
6. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
7. Remove radiator cooling fan assembly. Refer to CO-21, "
COOLING FAN" .
8. Separate engine harnesses removing their brackets from front timing chain case.
9. Remove drive belts. Refer to EM-12, "
DRIVE BELTS" .
10. Remove intake manifold collector. Refer to EM-17, "
INTAKE MANIFOLD COLLECTOR" .
11. Remove harness bracket and fuel sub tube mounting bolt on front timing chain case.
12. Remove oil level gauge and guide.
13. Remove power steering oil pump from bracket with piping connected, and temporarily secure it to aside.
Refer to PS-28, "
POWER STEERING OIL PUMP" .
14. Remove power steering oil pump bracket. Refer to PS-28, "
POWER STEERING OIL PUMP" .
15. Remove alternator. Refer to SC-20, "
CHARGING SYSTEM" .
16. Remove water outlet and water piping. Refer to CO-28, "
WATER OUTLET AND WATER PIPING" .
17. Remove left and right valve timing control covers with the following procedure.
a. Disconnect valve timing control harness connector.
b. Loosen mounting bolts in reverse order as shown in the figure.
A : Right bank
B : Left bank
C : Dowel pin hole
PBIC4965E

EM-54
TIMING CHAIN
Revision: 2006 November2007 350Z

Refer to GI-11, "Components" for symbol marks in the figure.
NOTE:

This section describes procedures for removing/installing front timing chain case and timing chain related
parts, and rear timing chain case, when oil pan (upper) needs to be removed/installed for engine overhaul,
etc.

To remove/install front timing chain case, timing chain, and its related parts without removing oil pan
(upper), refer to EM-44, "
FRONT TIMING CHAIN CASE" .
REMOVAL
1. Remove engine assembly from the vehicle, and separate front suspension member and transmission
from engine. Refer to EM-101, "
ENGINE ASSEMBLY" .
2. Lift the engine with hoist and mount it onto widely use engine stand. Refer to EM-108, "
DISASSEMBLY" .
3. Remove intake manifold collector. Refer to EM-17, "
INTAKE MANIFOLD COLLECTOR" .
4. Remove power steering oil pump bracket. Refer to PS-28, "
POWER STEERING OIL PUMP" .
5. Remove alternator. Refer to SC-20, "
CHARGING SYSTEM" .
6. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
7. Remove left and right valve timing control covers (including magnet retarder and cover) with the following
procedure.
a. Loosen mounting bolts in reverse order as shown in the figure.
1.Timing chain tensioner (secondary)
(left bank)2. Internal chain guide 3.Timing chain tensioner (secondary)
(right bank)
4. Camshaft sprocket (EXH) 5. Timing chain (secondary) 6. Timing chain (primary)
7. Camshaft sprocket (INT) 8. Slack guide 9. Timing chain tensioner (primary)
10. Crankshaft sprocket 11. Camshaft sprocket (INT) 12. Timing chain (secondary)
13. Camshaft sprocket (EXH) 14. O-ring 15. Rear timing chain case
16. O-ring 17. O-ring 18. O-ring
19. Bracket 20. Bracket 21. Front timing chain case
22.Valve timing control cover gasket
(LH)23. Valve timing control cover (LH) 24. O-ring
25. Crankshaft pulley bolt 26. Crankshaft pulley 27. Front oil seal
28. Idler pulley 29. O-ring 30. Oil level gauge guide
31. Drive belt auto-tensioner 32. Idler pulley 33. Idler pulley bracket
34. Alternator bracket 35. Water outlet (front) 36.Valve timing control cover gasket
(RH)
37. Valve timing control cover (RH) 38. Power steering oil pump bracket
A. Refer to EM-60
A : Right bank
B : Left bank
C : Dowel pin hole
PBIC4965E