2007 NISSAN 350Z gas type

EM-1
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

OIL PAN AND OIL STRAINER
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Tighten mounting bolts in numerical order as shown in the fig-
ure.

There are two types of mounting bolts. Refer to the following
for locating bolts.
e. Tighten transmission joint bolts. Refer to MT-18, "
TRANSMISSION ASSEMBLY" (M/T models) or AT- 2 4 2 ,
"TRANSMISSION ASSEMBLY" (A/T models).
2. Install oil strainer to oil pump.

Apply locking sealant to the thread of mounting bolts.
Use Genuine High Strength Thread Locking Sealant or equivalent. Refer to GI-45, "
RECOM-
MENDED CHEMICAL PRODUCTS AND SEALANTS" .
3. Install oil pan (lower) as follows:
a. Use scraper to remove old liquid gasket from mating surfaces.

Also remove old liquid gasket from mating surface of oil pan
(upper).

Remove old liquid gasket from the bolt holes and thread.
CAUTION:
Do not scratch or damage the mating surfaces when clean-
ing off old liquid gasket.
b. Apply a continuous bead of liquid gasket with tube presser [SST:
WS39930000 ( — )] (A) to the oil pan (lower) as shown in the
figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-45, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
CAUTION:
Attaching should be done within 5 minutes after coating.
c. Install oil pan (lower).

Tighten mounting bolts in numerical order as shown in the fig-
ure.
4. Install oil pan drain plug.

Refer to the figure of components of former page for installation direction of drain plug washer. Refer to
EM-26, "
Removal and Installation" .
: Engine front
M8 × 92 mm (3.62 in) : 7, 10, 13
M8 × 25 mm (0.98 in) : Except the above
PBIC4957E
SEM958F
b : 4.0 – 5.0 mm (0.157 – 0.197 in)
PBIC4959E
: Engine front
PBIC4956E

TIMING CHAIN
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c. Align rear timing chain case and water pump assembly with dowel pins (right and left) on cylinder block
and install rear timing chain case.

Make sure O-rings stay in place during installation to cylinder block.
d. Tighten mounting bolts in numerical order as shown in the fig-
ure.

There are two types of mounting bolts. Refer to the following
for locating bolts.
e. After all bolts are tightened, retighten them to the specified in
numerical order shown in the figure.

If liquid gasket protrudes, wipe it off immediately.
f. After installing rear timing chain case, check the surface height
difference between following parts on oil pan (upper) mounting
surface.

If not within standard, repeat the installation procedure.
4. Install water pump with new O-rings. Refer to CO-23, "
WATER PUMP" .
5. Make sure that dowel pin (A) and crankshaft key (1) are located
as shown in the figure. (No. 1 cylinder at compression TDC)
NOTE:
Though camshaft does not stop at the position as shown in the
figure, for the placement of cam nose, it is generally accepted
camshaft is placed for the same direction of the figure.
6. Install timing chains (secondary) and camshaft sprockets as follows:
CAUTION:

When replacing camshaft sprocket (EXH), replace valve timing control cover (including magnet
retarder and cover).

Mating marks between timing chain and sprockets slip easily. Confirm all mating mark positions
repeatedly during the installation process.Bolt length: Bolt position
20 mm (0.79 in) : 1, 2, 3, 6, 7, 8, 9, 10
16 mm (0.63 in) : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
PBIC4976E
1 : Front timing chain case
2 : Rear timing chain case
3 : Lower cylinder block
Standard
Rear timing chain case to cylinder block:
–0.24 to 0.14 mm (–0.0094 to 0.0055 in)
PBIC4981E
Camshaft dowel pin
: At cylinder head upper face side in each bank.
Crankshaft key
: At cylinder head side of right bank.
PBIC5010E

TIMING CHAIN
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c. Tighten mounting bolts to the specified torque in numerical order
as shown in the figure.

There are two types of mounting bolts. Refer to the following
for locating bolts.
d. After all bolts are tightened, retighten them to the specified
torque in numerical order shown in the figure.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking on surface mating with oil pan (upper).
e. After installing front timing chain case, check the surface height
difference between the following parts on the oil pan (upper)
mounting surface.

If not within standard, repeat the installation procedure.
14. Install right and left valve timing control covers as follows:
a. Install new seal rings (1) in shaft grooves.
CAUTION:
When replacing seal rings, replace all rings with new one.
b. To check the joint between dowel pins and dowel pin holes,
check the looseness in the axle direction by pushing the mating
surface of magnet retarder (A) at several places and the circum-
ferential looseness (between dowel pins and dowel pin holes) by
twisting in the circumferential direction.
CAUTION:
Always perform this procedure when removing because the
gap between dowel pins and dowel pin holes may not be
caused on purpose.M8 bolts : 1, 2, 3, 4, 5, 6, 7
: 55.0 N·m (5.6 kg-m, 41 ft-lb)
M6 bolts : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
1 : Front timing chain case
2 : Rear timing chain case
3 : Lower cylinder block
Standard
Front timing chain case to rear timing chain case:
–0.14 to 0.14 mm (–0.005 to 0.0055 in)
PBIC4968E
PBIC4981E
A : Left bank
PBIC4973E
B : Moves slightly
C : Not shaken
PBIC4974E