2007 NISSAN 350Z checking oil

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ENGINE MECHANICAL
B ENGINE
CONTENTS
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Revision: 2006 November2007 350Z
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

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

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-38
FUEL INJECTOR AND FUEL TUBE
Revision: 2006 November2007 350Z

When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to
twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it
quickly into fuel tube.

Insert O-ring straight into fuel injector. Do not decenter or twist it.
4. Install fuel injector to fuel tube as follows:
a. Insert clip (3) into clip mounting groove (D) on fuel injector (5).
CAUTION:

Do not reuse clip. Replace it with a new one.

Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector (5) into fuel tube (1) with clip attached.

Insert it while matching it to the axial center.

Insert fuel injector (5) so that protrusion (A) of fuel tube
matches cutout (B) of clip (3).

Make sure that fuel tube flange (E) is securely fixed in flange
fixing groove (C) on clip (3).
c. Make sure that installation is complete by checking that fuel
injector does not rotate or come off.

Make sure that protrusions of fuel injectors are aligned with
cutouts of clips after installation.
5. Install fuel tube and fuel injector assembly to intake manifold.
CAUTION:
Be careful not to let tip of injector nozzle come in contact with other parts.

Tighten mounting bolts in two steps in numerical order as
shown in the figure.
6. Connect fuel injector harness connector.
7. Connect fuel feed hose (with damper).

Handling procedure of O-ring is the same as that of fuel damper and fuel sub-tube.

Insert fuel damper straight into fuel sub-tube.

Tighten mounting bolts evenly in turn.

After tightening mounting bolts, make sure that there is no gap between flange and fuel sub-tube.
8. Connect quick connector between fuel feed hose (with damper) and centralized under-floor piping con-
nection as follows:
a. Make sure no foreign substances are deposited in and around centralized under-floor piping and quick
connector, and no damage on them.
b. Thinly apply new engine oil around centralized under-floor piping from tip end to spool end.
c. Align center to insert quick connector straightly into centralized under-floor piping.
2 : O-ring (Black)
4 : O-ring (Green)
PBIC5042E
: Engine front
1st step
: 10.1 N·m (1.0 kg-m, 7 ft-lb)
2nd step
: 23.6 N·m (2.4 kg-m, 17 ft-lb)
PBIC4963E

FRONT TIMING CHAIN CASE
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c. Install valve timing control cover with new gasket to front timing
chain case.
CAUTION:

Do not face the magnet retarder side down to prevent
magnet retarder from dropping.

Check the mating surface of magnet retarder and the
drum of exhaust side camshaft sprocket for foreign mate-
rials.

Align the center of both shaft holes of the shaft and the
intake side camshaft sprocket, and then insert them.

Be careful not to drop the seal ring from the shaft groove.

When setting the valve timing control cover in position by hand, if valve timing control cover is
not contacting with the front timing chain case, the dowel pin of magnet retarder may not be
aligned with the dowel pin holes of cover. In this case, return to step “b”.
d. Tighten mounting bolts in numerical order as shown in the fig-
ure.
CAUTION:
Completely tighten the mounting bolts with the seat surface
of valve timing control cover contacting with front timing
chain case.

After all bolt are tightened, tighten No.1 bolt to the specified torque again.
8. Install crankshaft pulley as follows:
a. Fix crankshaft using ring gear stopper [SST: KV10118600 (J-48641)].
b. Install crankshaft pulley, taking care not to damage front oil seal.

When press-fitting crankshaft pulley with plastic hammer, tap on its center portion (not circumference).
c. Tighten crankshaft pulley bolt.
d. Place a paint mark (A) on crankshaft pulley (2) aligning with the
angle mark (C) on crankshaft pulley bolt (1). Tighten the bolt 90
degrees (one marks) (b).
9. Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns
smoothly.
10. Install in the reverse order of removal after this step.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluid leak, lubricates leak and exhaust gases leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
RECOMMENDED FLUIDS AND LUBRICANTS" . : 11.3 N·m (1.2 kg-m, 8 ft-lb)
A : Right bank
B : Left bank
C : Dowel pin hole
PBIC3561E
PBIC4965E
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
PBIC4975E

TIMING CHAIN
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INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
RECOMMENDED FLUIDS AND LUBRICANTS" .

Use procedure below to check for fuel leakage.
–Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.

Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.

Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.

Bleed air from lines and hoses of applicable lines, such as in cooling system.

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

CAMSHAFT
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5. Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown in the figure.
a. Tighten No. 7 to 10 in numerical order as shown.
b. Tighten No. 1 to 6 in numerical order as shown.
c. Tighten No. 1 to 10 in numerical order as shown.
d. Tighten No. 1 to 10 in numerical order as shown.
CAUTION:
After tightening mounting bolts of camshaft brackets (No.
1), be sure to wipe off excessive liquid gasket from the
parts list below.

Mating surface of rocker cover

Mating surface of rear timing chain case
6. Inspect and adjust the valve clearance. Refer to EM-80, "
Valve Clearance" .
7. Install camshaft sensor bracket.

Tighten camshaft sensor bracket bolts in numerical order as
shown in the figure.
8. Install in the reverse order of removal after this step.
INSPECTION AFTER INSTALLATION
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:

Perform this inspection only when DTC P0011 or P0021 are detected in self-diagnostic results of
CONSULT-III and it is directed according to inspection procedure of EC section. Refer to EC-81,
"TROUBLE DIAGNOSIS" .

Check when engine is cold so as to prevent burns from any splashing engine oil.
1. Check the engine oil level. Refer to LU-6, "
ENGINE OIL" .
2. Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a. Release fuel pressure. Refer to EC-79, "
FUEL PRESSURE RELEASE" .
b. Disconnect ignition coil and injector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-72, "
CAMSHAFT" . : 1.96 N·m (0.2 kg-m, 17 in-lb)
: 1.96 N·m (0.2 kg-m, 17 in-lb)
: 5.88 N·m (0.6 kg-m, 52 in-lb)
: 10.4 N·m (1.1 kg-m, 92 in-lb)
PBIC2050E
: Engine front
PBIC5054E