length INFINITI FX35 2004 Owner's Manual

EM-22
[VQ35DE]
INTAKE MANIFOLD COLLECTOR
Revision: 2004 November 2004 FX35/FX45
INSTALLATION
Note to the following, and install in the reverse order of removal.
Part Installation Direction
Referring to front marks, install parts shown in figure.
Intake Manifold Collector (Lower)
Tighten in numerical order as shown in the figure.
NOTE:
Tighten mounting bolts to secure gasket (lower), intake manifold col-
lector (lower), gasket (upper), and intake manifold collector cover.
Intake Manifold Collector (Upper)

If stud bolts were removed, install them and tighten to the speci-
fied torque below.

Shank length under bolt head varies with bolt location. Install
bolts while referring to numbers shown below and in figure. (Bolt
length does not include pilot portion.)

Tighten in numerical order as shown in the figure.
Water Hose

Insert hose by 27 to 32 mm (1.06 to 1.26 in) from connector end.
PBIC0776E
PBIC0774E
: 5.9 N·m (0.6 kg-m, 52 in-lb)
Bolt
M6 × 25 mm (0.98 in) : 7, 8, 10, 11, 13, 14, 15, 16, 18
M6 × 45 mm (1.77 in) : 2, 4, 5
M6 × 60 mm (2.36 in) : 1, 3, 6, 9
M6 Nut : 12, 17
PBIC0773E

EM-58
[VQ35DE]
FRONT TIMING CHAIN CASE
Revision: 2004 November 2004 FX35/FX45
28. Use a scraper to remove all traces of liquid gasket from water
pump cover, chain tensioner cover and intake valve timing con-
trol covers.
INSTALLATION
1. Install timing chain and related parts. Refer to EM-63, "TIMING CHAIN" .
2. Hammer dowel pins (left and left) into front timing chain case up
to a point close to taper in order to shorten protrusion length.
3. Install front oil seal on front timing chain case.

Apply new engine oil to the oil seal edges.

Install it so that each seal lip is oriented as shown in the fig-
ure.

Using suitable drift, press-fit oil seal until it becomes flush with
front timing chain case end face.

Make sure the garter spring is in position and seal lip is not
inverted.
SEM926E
PBIC1101E
SEM715A
PBIC0790E

EM-60
[VQ35DE]
FRONT TIMING CHAIN CASE
Revision: 2004 November 2004 FX35/FX45

Apply liquid gasket to top surface of oil pan (upper) as shown
in the figure with tube presser [SST: WS39930000 ( – )].
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS".
c. Install new O-rings on rear timing chain case.
d. Assemble front timing chain case as follows.
i. Fit lower end of front timing chain case tightly onto top face of oil
pan (upper). From the fitting point, make entire front timing chain
case contact rear timing chain case completely.
CAUTION:
Be careful that oil pan gasket is in place.
ii. While pressing front timing chain case from its front and top as
shown in the figure, install bolts and temporarily tighten them.
For bolt length and positions, refer to the step 6.
iii. Hammer dowel pin until the outer end becomes flush with sur-
face.
6. Tighten bolts to the specified torque in order as shown in the fig-
ure.

After tightening, retighten them to specified torque in numeri-
cal order as shown in the figure.
PBIC1099E
SBIA0497E
PBIC1100E
PBIC1115E
8 mm (0.31 in) dia. bolts : 1, 2
: 28.4 N·m (2.9 kg-m, 21 ft-lb)
6 mm (0.24 in) dia. bolts : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
KBIA1303E

TIMING CHAIN
EM-73
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2004 November 2004 FX35/FX45

Apply liquid gasket on installation position of water pump and cylinder head very completely.
5. Align rear timing chain case and water pump assembly with dowel pins (right and left) on cylinder block
and install case.

Make sure O-rings stay in place during installation to cylinder block and cylinder head.
a. Tighten mounting bolts in the numerical order as shown in the
figure.

There are two bolt lengths used. Follow the below for proper
bolt length specifications.
b. After all bolts are temporarily tightened, retighten them to the
specification in the numerical order as shown in the figure.

If RTV Silicone Sealant protrudes, wipe it off immediately.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)
PBIC1131E
SEM735G

EM-138
[VQ35DE]
CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
CONNECTING ROD BEND AND TORSION

Check with connecting rod aligner.

If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BEARING HOUSING DIAMETER (BIG END)
Install connecting rod cap without connecting rod bearing installed.
After tightening connecting rod bolt to the specified torque, measure
the connecting rod big end inner diameter using an inside microme-
ter. Refer to EM-126, "
ASSEMBLY" for the tightening procedure.
CONNECTING ROD BUSHING OIL CLEARANCE (SMALL END)
Piston Pin Bushing Inner Diameter (Small End)
Measure inner diameter of bushing.Bend:
Limit : 0.15 mm (0.0059 in) per 100 mm (3.94 in) length
Torsion:
Limit : 0.30 mm (0.0118 in) per 100 mm (3.94 in) length
PBIC2077E
Standard : 55.000 - 55.013 mm (2.1654 - 2.1659 in)
PBIC1641E
Standard : 22.000 - 22.012 mm (0.8661 - 0.8666 in)
PBIC0120E

EM-150
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2004 November 2004 FX35/FX45
CYLINDER HEAD
Unit: mm (in)
Valve Dimensions
Unit: mm (in) Items Standard Limit
Head surface distortion 0.03 (0.0012) 0.1 (0.004)
Normal cylinder head height “H” 126.3 - 126.5 (4.972 - 4.980)
PBIC0924E
Valve head diameter “D” Intake 37.0 - 37.3 (1.4567 - 1.4685)
Exhaust 31.2 - 31.5 (1.228 - 1.240)
Valve length “L”Intake 96.37 (3.7941)
Exhaust 93.90 (3.6968)
Valve stem diameter “d”Intake 5.965 - 5.980 (0.2348 - 0.2354)
Exhaust 5.955 - 5.970 (0.2344 - 0.2350)
Valve seat angle “α”Intake
45°15′ - 45°45′
Exhaust
Valve margin “T”Intake 1.1 (0.043)
Exhaust 1.3 (0.051)
Valve margin “T” limitMore than 0.5 (0.020)
Valve stem end surface grinding limit Less than 0.2 (0.008)
SEM188

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-151
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2004 November 2004 FX35/FX45
Valve Guide
Unit: mm (in)
Items Standard 0.2 (0.008) Oversize (Service)
Valve guideOuter diameter 10.023 - 10.034 (0.3946 - 0.3950) 10.223 - 10.234 (0.4025 - 0.4029)
Inner diameter (Finished size) 6.000 - 6.018 (0.2362 - 0.2369) —
Cylinder head valve guide hole diameter 9.975 - 9.996 (0.3927 - 0.3935) 10.175 - 10.196 (0.4006 - 0.4014)
Interference fit of valve guide 0.027 - 0.059 (0.0011 - 0.0023)
Items Standard Limit
Stem to guide clearanceIntake 0.020 - 0.053 (0.0008 - 0.0021) 0.08 (0.0031)
Exhaust 0.030 - 0.063 (0.0012 - 0.0025) 0.09 (0.0035)
Projection length “L” 12.6 - 12.8 (0.496 - 0.504)
SEM950E

EM-180
[VK45DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2004 November 2004 FX35/FX45
INSPECTION AFTER REMOVAL
Surface Distortion

Check the surface distortion of the each exhaust manifold flange
mating surface 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 with its directional protrusion set upward.
Refer to the figure of components on former page. Refer to EM-178, "
Removal and Installation" .
Exhaust Manifold

Install exhaust manifold in numerical order as shown in the fig-
ure.
NOTE:
Tighten mounting nuts No. 1 to 4 in two steps. The numerical
order No. 9 to 12 shown second steps.
Heated Oxygen Sensor

Install heated oxygen sensors in the original position.

Install referring the following if the installation positions cannot
be identified.
*: The length of glass tube of bank 2 is longer than the one
of bank 1.
CAUTION:

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

Do not over torque heated oxygen sensor. Doing so may cause damage to the heated oxygen sen-
sor, resulting in “MIL” coming on.Limit : 0.3 mm (0.012 in)
PBIC1550E
PBIC1549E
Glass tube color
Heated oxygen sensor 1* : Black
Heated oxygen sensor 2 : White
PBIC2652E

EM-258
[VK45DE]
CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
CONNECTING ROD BEND AND TORSION

Check with connecting rod aligner.

If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BIG END DIAMETER

Install connecting rod cap without installing connecting rod bear-
ing, and tightening connecting rod bolts to the specified torque.
Refer to EM-244, "
ASSEMBLY" for the tightening procedure.

Measure the inner diameter of connecting rod big end with
inside micrometer.

If out of the standard, replace connecting rod assembly.
CONNECTING ROD BUSHING OIL CLEARANCE
Connecting Rod Bushing Inner Diameter
Measure the inner diameter of connecting rod bushing with inside
micrometer.Bend:
Limit : 0.15 mm (0.0059 in) per 100 mm (3.94 in) length
Torsion:
Limit : 0.30 mm (0.0118 in) per 100 mm (3.94 in) length
PBIC2077E
Standard : 55.000 - 55.013 mm (2.1654 - 2.1659 in)
PBIC1641E
Standard : 22.000 - 22.012 mm (0.8661 - 0.8666 in)
PBIC0120E

EM-270
[VK45DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2004 November 2004 FX35/FX45
Valve Dimensions
Unit: mm (in)
Valve Guide
Unit: mm (in) Valve head diameter “D” Intake 36.0 - 36.3 (1.417 - 1.429)
Exhaust 31.2 - 31.5 (1.228 - 1.240)
Valve length “L”Intake 96.57 (3.8020)
Exhaust 94.50 (3.720)
Valve stem diameter “d”Intake 5.972 - 5.980 (0.2351 - 0.2354)
Exhaust 5.962 - 5.970 (0.2347 - 0.2350)
Valve seat angle “α”Intake
45°15′ - 45°45′
Exhaust
Valve margin “T”Intake 1.15 - 1.45 (0.0453 - 0.0571)
Exhaust 1.85 - 2.15 (0.0728 - 0.0846)
SEM188
ItemsStandard 0.2 (0.008) Oversize (Service)
Valve guideOuter diameter10.023 - 10.034 (0.3946 -
0.3950)10.223 - 10.234 (0.4025 -
0.4029)
Inner diameter (Finished size) 6.000 - 6.018 (0.2362 - 0.2369)
Cylinder head valve guide hole diameter 9.975 - 9.996 (0.3927 - 0.3935)10.175 - 10.196 (0.4006 -
0.4014)
Interference fit of valve guide 0.027 - 0.059 (0.0011 - 0.0023)
ItemsStandard Limit
Valve guide clearanceIntake 0.020 - 0.046 (0.0008 - 0.0018) 0.08 (0.003)
Exhaust 0.030 - 0.056 (0.0012 - 0.0022) 0.1 (0.004)
Projection length “L”Intake 10.1 - 10.3 (0.398 - 0.406) —
Exhaust 10.0 - 10.4 (0.394 - 0.409) —
PBIC0184E