Abs INFINITI FX35 2004 Service Manual

EM-214
[VK45DE]
CAMSHAFT
Revision: 2004 November 2004 FX35/FX45
4. Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown in the figure.
a. Tighten No. 9 to 12 in numerical order as shown.
b. Tighten No. 1 to 8 in numerical order as shown.
c. Tighten No. 13 to 14 in numerical order as shown. (Left bank
only)
d. Tighten all bolts in numerical order as shown.
e. Tighten No. 1 to 12 in numerical order as shown.
f. Tighten No. 13 to 14 in numerical order as shown. (Left bank
only)
CAUTION:
After tightening mounting bolts of camshaft brackets, be sure to wipe off excessive liquid gasket
from the parts listed below.

Mating surface of rocker cover

Mating surface of front cover
5. Install camshaft sprockets.

Install by checking with identification mark on surface.

Instal camshaft sprocket (EXH) by selectively using the
groove of dowel pin according to the bank. (Common part
used for both banks.)

Lock the hexagonal part of camshaft in the same way as for
removal, and tighten mounting bolts.
6. Check and adjust valve clearance. Refer to EM-214, "
Valve Clearance" .
7. Install in the reverse order of removal after this step.
Valve ClearanceABS006IL
INSPECTION
In cases of removing/installing or replacing camshaft and valve-related parts, or of unusual engine conditions
due to changes in valve clearance (found malfunctions during starting, idling or causing noise), perform
inspection as follows:
1. Warm up engine. Then stop it.
2. Remove rocker covers (right and left bank). Refer to EM-193, "
ROCKER COVER" .
3. Measure valve clearance as follows:
a. Set No. 1 cylinder at TDC of its compression stroke. : 1.96 N·m (0.2 kg-m, 1 ft-lb)
: 1.96 N·m (0.2 kg-m, 1 ft-lb)
: 1.96 N·m (0.2 kg-m, 1 ft-lb)
: 5.88 N·m (0.6 kg-m, 4 ft-lb)
: 10.41 N·m (1.1 kg-m, 8 ft-lb)
: 31.35 N·m (3.2 kg-m, 23 ft-lb)
PBIC0031E
PBIC2345E

OIL SEAL
EM-221
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Revision: 2004 November 2004 FX35/FX45
OIL SEALPFP:00100
Removal and Installation of Valve Oil SealABS006IM
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-236, "ENGINE ASSEMBLY" .
2. Remove camshaft relating to valve oil seal to be removed. Refer to EM-208, "
CAMSHAFT" .
3. Remove adjusting shims and valve lifters. Refer to EM-208, "
CAMSHAFT" .

Identify installation positions, and store them without mixing them up.
4. Turn crankshaft until the cylinder requiring new oil seals is at TDC. This will prevent valve from dropping
into cylinder.
5. Remove valve collet.

Compress valve spring with valve spring compressor, attach-
ment and adapter (SST). Remove valve collet with magnetic
hand.
CAUTION:
When working, take care not to damage valve lifter holes.
6. Remove valve spring retainer and valve spring.
CAUTION:
Do not remove valve spring seat from valve spring.
7. Remove valve oil seal using valve oil seal puller (SST).
INSTALLATION
1. Apply engine oil on new valve oil seal joint and seal lip.
2. Install valve oil seal.

Install with valve oil seal drift (SST) to match dimension in the
figure.
3. Install in the reverse order of removal after this step.
PBIC2360E
PBIC0072E
PBIC0073E

EM-222
[VK45DE]
OIL SEAL
Revision: 2004 November 2004 FX35/FX45
Removal and Installation of Front Oil SealABS006IN
REMOVAL
1. Remove the following parts:

Front engine undercover

Radiator; Refer to CO-39, "RADIATOR"

Drive belt; Refer to EM-169, "DRIVE BELTS" .

Cooling fan; Refer to CO-47, "COOLING FAN" .

Rear plate cover; Refer to EM-181, "OIL PAN AND OIL STRAINER" .
2. Set ring gear stopper (SST).
3. Loosen crankshaft pulley bolt, and then pull crankshaft pulley
with both hands to remove it.
CAUTION:

Do not remove crankshaft pulley bolt. Keep loosened
crankshaft pulley bolt in place to protect removed crank-
shaft pulley from dropping.

Do not remove balance weight (inner hexagon bolt) at the
front of crankshaft pulley.
4. Remove front oil seal using suitable tool.
CAUTION:
Be careful not to damage front cover and oil pump drive
spacer.
INSTALLATION
1. Apply engine oil to both oil seal lip and dust seal lip.
2. Using suitable drift, press fit until the height of front oil seal is
level with the mounting surface.
PBIC1656E
SBIA0358E
SBIA0359E
Suitable drift
Outer diameter : 56 mm (2.20 in)
Inner diameter : 49 mm (1.93 in)
SBIA0359E

OIL SEAL
EM-223
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Revision: 2004 November 2004 FX35/FX45

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

Be careful not to damage front cover and oil pump drive
spacer.

Press fit straight and avoid causing burrs or tilting oil
seal.
3. Install in the reverse order of removal after this step.
Removal and Installation of Rear Oil SealABS006IO
REMOVAL
1. Remove transmission (with transfer) assembly. Refer to AT- 2 6 9 , "Removal and Installation (AWD mod-
els)" .
a. Remove drive plate. Refer to EM-240, "
CYLINDER BLOCK" .
b. Remove engine rear plate. Refer to EM-240, "
CYLINDER BLOCK" .
2. Remove rear oil seal using suitable tool.
CAUTION:
Be careful not to damage crankshaft and oil seal retainer
surface.
INSTALLATION
1. Apply engine oil to both oil seal lip and dust seal lip.
2. Using suitable drift, press fit until the height of front oil seal is
level with the mounting surface.

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

Be careful not to damage crankshaft and rear oil seal
retainer.

Press fit straight and avoid causing burrs or tilting oil
seal.
3. Install in the reverse order of removal after this step.
SEM715A
SBIA0360E
Suitable drift
Outer diameter : 102 mm (4.02 in)
Inner diameter : 86 mm (3.39 in)
SBIA0360E
SEM715A

EM-224
[VK45DE]
CYLINDER HEAD
Revision: 2004 November 2004 FX35/FX45
CYLINDER HEADPFP:11041
On-Vehicle ServiceABS006IP
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-700, "
FUEL PRESSURE RELEASE" .
a. Remove fuel pump fuse to avoid fuel injection during measure-
ment.
3. Remove engine cover with power tool. Refer to EM-168, "
ENGINE ROOM COVER" .
4. Remove ignition coil and spark plug from each cylinder. Refer to EM-185, "
IGNITION COIL" and EM-186,
"SPARK PLUG (PLATINUM-TIPPED TYPE)" .
5. Connect engine tachometer (not required in use of CONSULT-II).
6. Install compression gauge with adapter (SST or commercial ser-
vice tool) onto spark plug hole.

Use compression gauge adapter (SST) which is required on
No. 7 and No. 8 cylinders.

Use compression gauge adapter (if no SST is used) whose
picking up end inserted to spark plug hole is smaller than 20
mm (0.79 in) in diameter. Otherwise, it may be caught by cyl-
inder head during removal.
7. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and engine rpm. Perform these steps to check each cyl-
inder.
Compression pressure:
Unit: kPa (kg/cm2 , psi) /rpm
CAUTION:
Always use a fully changed battery to obtain specified engine speed.
PBIB1482E
PBIC1554E
SBIA0533E
Standard Minimum Deferential limit between cylinders
1,320 (13.5, 191) / 300 1,130 (11.5, 164) / 300 98 (1.0, 14) / 300

CYLINDER HEAD
EM-225
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Revision: 2004 November 2004 FX35/FX45

If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.

If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure compression pressure again.

If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug
hole of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check the
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.

If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, gaskets are leaking. In such a case, replace cylinder head gas-
kets.
8. After inspection is completed, install removed parts in the reverse order of removal.
9. Start engine, and make sure that engine runs smoothly.
10. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-726, "
TROUBLE DIAGNOSIS" .
Removal and InstallationABS006IQ
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-236, "ENGINE ASSEMBLY" .
2. Remove exhaust manifold. Refer to EM-178, "
EXHAUST MANIFOLD AND THREE WAY CATALYST" .
3. Remove camshaft. Refer to EM-208, "
CAMSHAFT" .
1. Engine coolant temperature sensor 2. Washer 3. Cylinder head gasket (left bank)
4. Harness bracket 5. Cylinder head (right bank) 6. Cylinder head bolt
7. Cylinder head gasket (right bank) 8. Cylinder head bolt 9. Cylinder head (left bank)
PBIC2407E

EM-228
[VK45DE]
CYLINDER HEAD
Revision: 2004 November 2004 FX35/FX45
Disassembly and AssemblyABS006IR
DISASSEMBLY
1. Remove spark plug with spark plug wrench (commercial service tool).
2. Remove adjusting shim and valve lifter.

Identify installation positions, and store them without mixing them up.
3. Remove valve collet.

Compress valve spring with valve spring compressor, attach-
ment and adapter (SST). Remove valve collet with magnetic
hand.
CAUTION:
When working, take care not to damage valve lifter holes.
4. Remove valve spring retainer and valve spring.
CAUTION:
Do not remove valve spring seat from valve spring.
5. Push valve stem to combustion chamber side, and remove valve.

Identify installation positions, and store them without mixing them up.
1. Spark plug 2. Adjusting shim 3. Valve lifter
4. Valve collet 5. Valve spring retainer 6. Valve spring (with valve spring seat)
7. Valve oil seal 8. Valve guide 9. Valve seat
10. Valve (INT) 11. Valve (EXH) 12. Cylinder head (left bank)
13. Spark plug tube 14. Cylinder head (right bank)
PBIC2362E
PBIC2360E

CYLINDER HEAD
EM-229
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Revision: 2004 November 2004 FX35/FX45
6. Remove valve oil seal with valve oil seal puller (SST).
7. If valve seat must be replaced, refer to EM-233, "
VALVE SEAT REPLACEMENT" .
8. If valve guide must be replaced, refer to EM-231, "
VALVE GUIDE REPLACEMENT" .
9. Remove spark plug tube, as necessary.

Using pair of pliers, pull spark plug tube out of cylinder head.
CAUTION:

Take care not to damage cylinder head.

Once removed, spark plug tube will be deformed and cannot be reused. Do not remove it unless
absolutely necessary.
ASSEMBLY
1. When valve guide is removed, install it. Refer to EM-231, "VALVE GUIDE REPLACEMENT" .
2. When valve seat is removed, install it. Refer to EM-233, "
VALVE SEAT REPLACEMENT" .
3. Install valve oil seal.

Install with valve oil seal drift (SST) to match dimension in the
figure.
4. Install valve.

Install in the original position.
NOTE:
Larger diameter valves are for intake side.
5. Install valve spring.

Install smaller pitch (valve spring seat side) to cylinder head
side.
6. Install valve spring retainer.
PBIC0072E
PBIC0073E
PBIC0074E

EM-230
[VK45DE]
CYLINDER HEAD
Revision: 2004 November 2004 FX35/FX45
7. Install valve collet.

Compress valve spring with valve spring compressor, attach-
ment and adapter (SST). Install valve collet with magnetic
hand.
CAUTION:
When working, take care not to damage valve lifter holes.

Tap stem edge lightly with plastic hammer after installation to
check its installed condition.
8. Install valve lifter and adjusting shim.

Install in the original position.
9. Install spark plug tube.

Press-fit spark plug tube following procedure below.
a. Remove old liquid gasket adhering to cylinder-head mounting
hole.
b. Apply liquid gasket to area within approximately 12 mm (0.47 in)
from edge of spark plug tube press-fit side.
Use Genuine RTV Silicone Sealant or equivalent . Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
c. Using drift, press-fit spark plug tube so that its height “H” is as
specified in the figure.
CAUTION:

When press-fitting, take care not to deform spark plug tube.

After press-fitting, wipe off liquid gasket protruding onto cylinder-head upper face.
10. Install spark plug with spark plug wrench (commercial service tool).
Inspection After DisassemblyABS006IS
VALVE DIMENSIONS

Check dimensions of each valve. For dimensions, refer to .

If dimensions are out of the standard, replace valve.EM-270,
"Valve Dimensions" .
PBIC2360E
Standard press-fit height “H” :
: 38.4 - 39.4 mm (1.512 - 1.551 in)
KBIA1248E
SEM188A

EM-236
[VK45DE]
ENGINE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
ENGINE ASSEMBLYPFP:10001
Removal and InstallationABS006IT
WARNING:

Situate vehicle on a flat and solid surface.

Place chocks at front and back of rear wheels.

For engines not equipped with engine slingers, attach proper slingers and bolts described in
PARTS CATALOG.
CAUTION:

Always be careful to work safely, avoid forceful or uninstructed operations.

Do not start working until exhaust system and engine coolant are cool enough.

If items or work required are not covered by the engine section, refer to the applicable sections.

Always use the support point specified for lifting.

Use either 2-point lift type or separate type lift as best you can. If board-on type is used for
unavoidable reasons, support at the rear axle jacking point with transmission jack or similar tool
before starting work, in preparation for the backward shift of center of gravity.

For supporting points for lifting and jacking point at rear axle, refer to GI-42, "Garage Jack and
Safety Stand" .
REMOVAL
Outline
At first, remove engine, transmission assembly and front final drive with front suspension member downward.
Then separate engine from transmission.
Preparation
1. Release fuel pressure. Refer to EC-700, "FUEL PRESSURE RELEASE" .
1. Engine mounting insulator (rear) 2. Engine rear member 3. Grommet
4. Collar 5. Plate 6. Engine mounting bracket (LH)
7. Engine mounting insulator (LH) 8. Engine mounting bracket (RH) 9. Engine mounting insulator (RH)
PBIC2364E