2007 NISSAN 350Z torque

PRECAUTIONS
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Revision: 2006 November2007 350Z
PRECAUTIONSPFP:00001
Precautions for Procedures without Cowl Top CoverNBS003FC
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions for Battery ServiceNBS003FD
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Precautions for Drain Engine Coolant and Engine OilNBS00002
Drain engine coolant and engine oil when engine is cooled.
Precautions for Disconnecting Fuel PipingNBS00003

Before starting work, make sure no fire or spark producing items are in the work area.

Release fuel pressure before disconnecting and disassembly.

After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyNBS00004

When instructed to use special service tools, use specified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.

Exercise maximum care to avoid damage to mating or sliding surfaces.

Cover openings of engine system with tape or equivalent, if necessary, to seal out foreign materials.

Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-assembly.

When loosening bolts and nuts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be
used in the step.
Precautions for Inspection, Repair and ReplacementNBS00005
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and InstallationNBS00006

Use torque wrench to tighten bolts or nuts to specification.

When tightening bolts and nuts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is speci-
fied, do exactly as specified.

Replace with new gasket, packing, oil seal or O-ring.

Dowel pins are used for several parts alignment. When replacing and reassembling with dowel pins, make
sure that dowel pins are installed in the original portion.

Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
any restriction and blockage.

Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.

Release air within route when refilling after draining engine coolant.
PIIB3706J

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PRECAUTIONS
Revision: 2006 November2007 350Z

After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust gases for leakage.
Parts Requiring Angle TighteningNBS00007

Use angle wrench [SST: KV10112100 (BT8653-A)] for the final tightening of the following engine parts:
–Cylinder head bolts
–Lower cylinder block bolts
–Connecting rod cap bolts

Do not use a torque value for final tightening.

The torque value for these parts are for a preliminary step.

Ensure thread and seat surfaces are clean and coated with engine oil.
Precautions for Liquid GasketNBS00008
REMOVAL OF LIQUID GASKET SEALING

After removing mounting bolts and nuts, separate the mating
surface using seal cutter (SST) and remove old liquid gasket
sealing.
CAUTION:
Be careful not to damage the mating surfaces.

Tap seal cutter to insert it, and then slide it by tapping on the
side as shown in the figure.

In areas where seal cutter (SST) is difficult to use, use plastic
hammer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason tool such as screwdriver is
used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using scraper, remove old liquid gasket adhering to the gasket
application surface and the mating surface.

Remove liquid gasket completely from the groove of the gas-
ket application surface, mounting bolts, and bolt holes.
2. Wipe the liquid gasket application surface and the mating sur-
face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
3. Attach liquid gasket tube to tube presser [SST: WS39930000
(—)].
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-45, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
4. Apply liquid gasket without breaks to the specified location with
the specified dimensions.

If there is a groove for liquid gasket application, apply liquid
gasket to the groove.
PBIC0002E
PBIC0003E
EMA0622D

INTAKE MANIFOLD COLLECTOR
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Revision: 2006 November2007 350Z
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

INTAKE MANIFOLD
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INSPECTION AFTER REMOVAL
Surface Distortion

Check the surface distortion of the intake manifold mating sur-
face with straightedge and feeler gauge.

If it exceeds the limit, replace intake manifold.
INSTALLATION
Note the following, and install in the reverse order of removal.
Intake Manifold

If stud bolts were removed, install them and tighten to the specified torque below.

Tighten all mounting nuts and bolts to the specified torque in two
or more steps in numerical order shown in the figure.
CAUTION:

Install intake manifold with the marks (put on the intake
manifold and the cylinder head before removal) aligned.

Tighten mounting bolts and nuts from the outside of man-
ifold to the inside.Limit : 0.1 mm (0.004 in)
PBIC0870E
: 9.8 N·m (1.0 kg-m, 7 ft-lb)
: Engine front
1st step
: 7.4 N·m (0.75 kg-m, 5 ft-lb)
2nd step and after
: 29.0 N·m (3.0 kg-m, 21 ft-lb)PBIC4951E

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EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 November2007 350Z
INSPECTION AFTER REMOVAL
Surface Distortion

Check the surface distortion of the exhaust manifold mating sur-
face with straightedge and feeler gauge.

If it exceeds the limit, replace exhaust manifold.
INSTALLATION
Note the following, and install in the reverse order of removal.
Exhaust Manifold Gasket

Install exhaust manifold gasket in direction shown in the figure.
Exhaust Manifold

If stud bolts were removed, install them and tighten to the specified torque below.

Install mounting exhaust manifold in numerical order as shown
in the figure.
NOTE:
Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7
and 8 shown second step.
Air Fuel Ratio Sensor 1 and Heated Oxygen Sensor 2

Install air fuel ratio sensor 1 and heated oxygen sensor 2 in the original position.Limit : 0.7 mm (0.028 in)
PBIC1096E
A : Right bank
B : Triangle press
C : Left bank
: Engine front
PBIC4954E
: 14.7 N·m (1.5 kg-m, 11 ft-lb)
A : Right bank
B : Left bank
: Engine front
PBIC4953E

EXHAUST MANIFOLD AND THREE WAY CATALYST
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Revision: 2006 November2007 350Z

Install referring to the following if the installation positions cannot
be identified.
*: Air fuel ratio sensor 1 is the same for both bank 1 and
bank 2.
CAUTION:

Before installing a new air fuel ratio sensor 1 and heated
oxygen sensor 2, clean exhaust system threads using oxygen sensor thread cleaner (commercial
service tool: J-43897-18 or J43897-12) and apply anti-seize lubricant (commercial service tool).

Do not over torque air fuel ratio sensor 1 and heated oxygen sensor 2. Doing so may cause dam-
age to air fuel ratio sensor 1 and heated oxygen sensor 2, resulting in the “MIL” coming on.Glass tube color
Air fuel ratio sensor 1* : Black
Heated oxygen sensor 2 (bank 1) : White
Heated oxygen sensor 2 (bank 2) : White
PBIC2652E

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FRONT TIMING CHAIN CASE
Revision: 2006 November2007 350Z
d. 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.
e. After all bolts tightened, retighten them to the specified torque in numerical order as shown in the figure.
5. Install two mounting bolts in front of oil pan (upper) in numerical
order as shown in the figure.
6. Install oil pan (lower). Refer to EM-26, "
OIL PAN AND OIL STRAINER" .
7. Install right and left valve timing control covers as follows.
a. Install new seal rings (1) in shaft grooves.
CAUTION:
When replacing seal ring, 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.M10 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)
PBIC4968E
: 17.2 N·m (1.8 kg-m, 13 ft-lb)
: Engine front
PBIC4967E
A : Left bank
PBIC4973E
B : Moves slightly
C : Not shaken
PBIC4974E

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