2006 INFINITI FX35 cylinder head gasket bolts

EM-6
[VQ35DE]
PRECAUTIONS
Revision: 2006 December 2006 FX35/FX45
Precautions for Assembly and InstallationNBS003FS

Use torque wrench to tighten bolts or nuts to specification.

When tightening nuts and bolts, 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.

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.

After repairing, start the engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust gases for leakage.
Precautions for Angle TighteningNBS003FT

Use the angle wrench [SST: KV10112100 (BT8653-A)] for the final tightening of the following engine parts:
–Cylinder head bolts
–Main bearing cap bolts
–Connecting rod cap bolts
–Crankshaft pulley bolt (No the angle wrench is required as bolt flange is provided with notches for angle
tightening)

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 GasketNBS003FU
REMOVAL OF LIQUID GASKET SEALING

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

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

In areas where the seal cutter is difficult to use, use a plastic
hammer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason tool such as a screwdriver
is used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a 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.
PBIC0002E
PBIC0003E

PREPARATION EM-9
[VQ35DE]
C
D E
F
G H
I
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K L
M A
EM
Revision: 2006 December 2006 FX35/FX45KV10115600
(J-38958)
Valve oil seal drift Installing valve oil seal
Use side A.
a: 20 (0.79) dia. d: 8 (0.31) dia.
b: 13 (0.51) dia. e: 10.7 (0.421)
c: 10.3 (0.406) dia. f: 5 (0.20)
Unit: mm (in)
EM03470000
(J8037)
Piston ring compressor Installing piston assembly into cylinder bore
ST16610001
(J23907)
Pilot bushing puller Removing pilot converter
KV10111100
(J37228)
Seal cutter Removing oil pan (lower and upper), front
and rear timing chain case, etc.
WS39930000
(—)
Tube presser Pressing the tube of liquid gasket
KV10112100
(BT8653-A)
Angle wrench Tightening bolts for connecting rod bearing
cap, cylinder head, etc. in angle
KV10117100
(J3647-A)
Heated oxygen sensor wrench Loosening or tightening heated oxygen
sensor 2
For 22 mm (0.87 in) width hexagon nut
Tool number
(Kent-Moore No.)
Tool name Description
S-NT603
NT044
NT045
NT046
NT052
NT014
NT379

EM-52
[VQ35DE]
ROCKER COVER
Revision: 2006 December 2006 FX35/FX45
10. Loosen mounting bolts with power tool in reverse order as shown in the figure.
11. Remove rocker cover gaskets from rocker covers.
12. Use a scraper to remove all trances of liquid gasket from cylinder head and camshaft bracket (No. 1). CAUTION:
Do not scratch or damage the mating surface when cleaning off old liquid gasket.
INSTALLATION
1. Apply liquid gasket with the tube presser [SST: WS39930000 ( — )] to joint part among rocker cover, cylinder head and
camshaft bracket (No. 1) as follows:
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
NOTE:
The figure shows an example of left bank side [zoomed in
shows camshaft bracket (No. 1)].
a. Refer to the figure “a” to apply liquid gasket to joint part of cam- shaft bracket (No. 1) and cylinder head.
b. Refer to the figure “b” to apply liquid gasket to the figure “a” squarely.
2. Install new rocker cover gasket to rocker cover.
3. Install rocker cover.

Check if rocker cover gasket is not dropped from installation groove of rocker cover.
KBIA0985E
PBIC2474E

EM-74
[VQ35DE]
TIMING CHAIN
Revision: 2006 December 2006 FX35/FX45

Apply liquid gasket on installation position of water pump and cylinder head very completely.
d. 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 and cylinder head.
e. Tighten mounting bolts in numerical order as shown in the fig- ure.

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

If liquid gasket 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)
PBIC2680E
SEM735G

EM-84
[VQ35DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003GR
REMOVAL
1. Remove front timing chain case, camshaft sprocket, timing chain and rear timing chain case. Refer to EM-
64, "TIMING CHAIN" .
2. Remove camshaft position sensor (PHASE) (right and left banks) from cylinder head back side.
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at
sensor tip.

Do not place sensors in a location where they are
exposed to magnetism.
3. Remove intake valve timing control solenoid valves.

Discard intake valve timing control solenoid valve gaskets and
use new gaskets for installation.
4. Remove camshaft brackets.

Mark camshafts, camshaft brackets and bolts so they are placed in the same position and direction for
installation.
19. Camshaft position sensor (PHASE)
(left bank) 20. Intake valve timing control solenoid
valve (left bank)
A. Refer to EM-88
.
KBIA1046E
SEM443GA

CYLINDER HEAD EM-103
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
CAUTION:
Temporary fitting means the status that engine is adequately stable though the hoist is released
from hanging.
NOTE:
At the time of the start of this procedure front suspension member is removed, and cylinder head is
hanged by hoist with the engine slinger installed.
3. Release the hoist from hanging, then remove the engine slinger.
4. Remove the following parts:

Fuel tube and fuel injector assembly; Refer to EM-45, "FUEL INJECTOR AND FUEL TUBE" .

Intake manifold; Refer to EM-24, "INTAKE MANIFOLD" .

Exhaust manifold; Refer to EM-26, "EXHAUST MANIFOLD AND THREE WAY CATALYST" .

Water inlet and thermostat assembly; Refer to CO-27, "WATER INLET AND THERMOSTAT ASSEM-
BLY" .

Water outlet, water pipe and heater pipe; Refer to CO-29, "WATER OUTLET AND WATER PIPING" .
5. Remove cylinder head bolts in reverse order as shown in the fig- ure with cylinder head bolt wrench (commercial service tool) and
power tool to remove cylinder heads (right and left banks).
6. Remove cylinder head gaskets.
INSPECTION AFTER REMOVAL
Cylinder Head Bolts Outer Diameter

Cylinder head bolts are tightened by plastic zone tightening
method. Whenever the size difference between “d1” and “d2”
exceeds the limit, replace them with new one.

If reduction of outer diameter appears in a position other than
“d2”, use it as “d2” point.
Cylinder Head Distortion
NOTE:
When performing this inspection, cylinder block distortion should be also checking. Refer to EM-144, "
CYLIN-
DER BLOCK DISTORTION" .
PBIC2057E
Limit (“d1” – “d2”) : 0.11 mm (0.0043 in)
PBIC2480E

EM-104
[VQ35DE]
CYLINDER HEAD
Revision: 2006 December 2006 FX35/FX45
1. Using a scraper, wipe off oil, scale, gasket, sealant and carbon deposits from surface of cylinder head. CAUTION:
Do not allow gasket fragments to enter engine oil or engine coolant passages.
2. At each of several locations on bottom surface of cylinder head, measure the distortion in six directions.

If it exceeds the limit, replace cylinder head.
INSTALLATION
1. Install new cylinder head gaskets.
2. Turn crankshaft until No. 1 piston is set at TDC.

Crankshaft key should line up with the right bank cylinder cen-
ter line as shown in the figure.
3. Install cylinder head follow the steps below to tighten cylinder head bolts in numerical order as shown in the figure with cylin-
der head bolts wrench (commercial service tool).
CAUTION:
If cylinder head bolts re-used, check their outer diameters
before installation. Refer to EM-103, "
Cylinder Head Bolts
Outer Diameter" .
a. Apply new engine oil to threads and seat surfaces of cylinder head bolts.
b. Tighten all cylinder head bolts.
c. Completely loosen all cylinder head bolts. CAUTION:
In step “c”, loosen bolts in reverse order of that indicated in
the figure.
d. Tighten all cylinder head bolts. Limit : 0.1 mm (0.004 in)
SEM861E
SEM532G
: 98.1 N·m (10 kg-m, 72 ft-lb)
: 0 N·m (0 kg-m, 0 ft-lb)
: 39.2 N·m (4.0 kg-m, 29 ft-lb)
PBIC2057E

PRECAUTIONS EM-165
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45

When tightening nuts and bolts, 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.

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

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

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.

After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust gases for leakage.
Parts Requiring Angle TighteningNBS003HG

Use angle wrench [SST: KV10112100 (BT8653-A)] for the final tightening of the following engine parts:
–Cylinder head bolts
–Main bearing cap bolts
–Connecting rod cap nuts
–Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angle
tightening)

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 GasketNBS003HH
REMOVAL OF LIQUID GASKET SEALING

After removing mounting nuts and bolts, 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 liquid gasket application surface and the mating surface.

Remove liquid gasket completely from the groove of the liquid
gasket 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.
PBIC0002E
PBIC0003E