pg power INFINITI FX35 2004 Service Manual

EM-52
[VQ35DE]
ROCKER COVER
Revision: 2004 November 2004 FX35/FX45
6. Loosen bolts in the reverse order shown in the figure (with
power tool).
7. Remove rocker cover gaskets from rocker covers.
8. Use 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 of 3.0 mm (0.12 in) diameter to position
shown in the figure (both edges of No. 1 camshaft bracket) (on
both banks).

First, apply it to engine longitudinal direction [5.0 mm (0.197
in) + 5.0 mm (0.197 in) side in figure].
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
2. Install new rocker cover gasket to rocker cover.
3. Install rocker cover.

Check if rocker cover gasket is dropped from installation groove of rocker cover.
KBIA0985E
PBIC0786E

EM-54
[VQ35DE]
FRONT TIMING CHAIN CASE
Revision: 2004 November 2004 FX35/FX45
FRONT TIMING CHAIN CASEPFP:13599
Removal and InstallationABS004X0
NOTE:

This section describes removal/installation procedure of front timing chain case and timing chain related
parts without removing oil pan (upper) on vehicle.

When oil pan (upper) needs to be removed or installed, or when rear timing chain case is removed or
installed, remove oil pans (upper and lower) first. Then remove front timing chain case, timing chain
related parts, and rear timing chain case in this order, and install in reverse order of removal. Refer to EM-
63, "TIMING CHAIN" .

Refer to EM-63, "TIMING CHAIN" for component parts location.
REMOVAL
1. Place vehicle onto lift.
2. Disconnect negative battery terminal.
3. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
4. Remove air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
5. Remove front and rear engine undercover with power tool.
6. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant" .
7. Drain engine oil from oil pan. Refer to LU-9, "
Changing Engine Oil" .
8. Remove engine harnesses.
9. Remove intake manifold collectors (upper and lower) with power tool. Refer to EM-19, "
INTAKE MANI-
FOLD COLLECTOR" .
10. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-31, "
POWER STEERING OIL PUMP" .
11. Remove power steering oil pump bracket. Refer to PS-31, "
POWER STEERING OIL PUMP" .
12. Remove alternator. Refer to SC-23, "
CHARGING SYSTEM" .
13. Remove water bypass hose, water hose clamp and idler pulley bracket and alternator and power steering
oil pump and A/C compressor belt tensioner from front timing chain case.
14. Remove right and left intake valve timing control covers with
power tool.

Loosen bolts in reverse order as shown in the figure.

U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J - 3 7 2 2 8 ) ] o r a n e q u i v a l e n t
tool to cut liquid gasket for removal.
CAUTION:
Shaft is internally jointed with intake camshaft sprocket
center hole. When removing, keep it horizontal until it is
completely disconnected.
15. Remove collared O-rings from front timing chain case (left and
right side).
16. Remove right and left rocker covers. Refer to EM-51, "
ROCKER COVER" .
NOTE:
When secondary timing chain is not removed/installed, this step is not required.
SEM728G
PBIC2045E

EM-56
[VQ35DE]
FRONT TIMING CHAIN CASE
Revision: 2004 November 2004 FX35/FX45
c. Place suitable puller tab on holes of crankshaft pulley, and pull
crankshaft pulley through.
CAUTION:
Do not put suitable puller tab on crankshaft pulley periph-
ery, as this will damage internal damper.
19. Remove oil pan (lower). Refer to EM-30, "
OIL PAN AND OIL STRAINER" .
20. Loosen two mounting bolts in front of oil pan (upper) with power
tool in reverse order as shown in the figure.
21. Remove front timing chain case.
a. Loosen mounting bolts with power tool in reverse order as
shown in the figure.
b. Insert suitable tool into the notch at the top of front timing chain
case as shown (1) in the figure.
c. Pry off case by moving tool as shown (2) in the figure.

U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J - 3 7 2 2 8 ) ] o r a n e q u i v a l e n t
tool to cut liquid gasket for removal.
CAUTION:

Do not use screwdrivers or something similar.

After removal, handle it carefully so it does not tilt,
cant, or warp under a load.
EMQ0477D
PBIC1116E
KBIA1303E
SEM156F

EM-64
[VQ35DE]
TIMING CHAIN
Revision: 2004 November 2004 FX35/FX45
NOTE:

This section describes procedures for removing/installing front timing chain case and timing chain related
parts, and rear timing chain case, when oil pan (upper) needs to be removed/installed for engine overhaul,
etc.

To remove/install front timing chain case, timing chain, and its related parts without removing oil pan
(upper), refer to EM-54, "
FRONT TIMING CHAIN CASE" .
REMOVAL
1. Place vehicle onto lift.
2. Remove front tire.
3. Disconnect negative battery terminal.
4. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
5. Remove air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
6. Remove front and rear engine undercover with power tool.
7. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant" .
8. Drain engine oil from oil pan. Refer to LU-9, "
Changing Engine Oil" .
9. Remove engine harnesses.
10. Remove intake manifold collectors (upper and lower) with power tool. Refer to EM-19, "
INTAKE MANI-
FOLD COLLECTOR" .
11. Remove radiator cooling fan assembly. Refer to CO-21, "
COOLING FAN" .
12. Remove A/C compressor from bracket with piping connected, and temporarily secure it aside. Refer to
ATC-139, "
Components" .
13. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-31, "
POWER STEERING OIL PUMP" .
14. Remove power steering oil pump bracket. Refer to PS-31, "
POWER STEERING OIL PUMP" .
15. Remove alternator. Refer to SC-23, "
CHARGING SYSTEM" .
16. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
17. Remove right and left intake valve timing control covers with
power tool.

Loosen bolts in reverse order as shown in the figure.

U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J - 3 7 2 2 8 ) ] o r a n e q u i v a l e n t
tool to cut liquid gasket for removal.
CAUTION:
Shaft is internally jointed with intake camshaft sprocket
center hole. When removing, keep it horizontal until it is
completely disconnected.
1. Timing chain tensioner (secondary) 2. Internal chain guide 3. Timing chain tensioner (secondary)
4. Camshaft sprocket (EXH) 5. Timing chain (secondary) 6. Timing chain (primary)
7. Camshaft sprocket (INT) 8. Camshaft sprocket (EXH) 9. Timing chain (secondary)
10. Camshaft sprocket (INT) 11. Slack guide 12. Crankshaft sprocket
13. Timing chain tensioner (primary) 14. Intake valve timing control cover 15. Collared O-ring
16. O-ring 17. Chain tensioner cover 18. Intake valve timing control cover
19. Water hose clamp 20. Idler pulley bracket 21. Idler pulley
22. Crankshaft pulley 23. Front oil seal 24. Idler pulley
25. A/C compressor bracket 26. Water pump cover 27. Bracket
28. Front timing chain case 29. Bracket 30. Rear timing chain case
31. O-ring 32. Tension guide 33. Water drain plug (front side)
SEM728G

EM-66
[VQ35DE]
TIMING CHAIN
Revision: 2004 November 2004 FX35/FX45
b. Loosen crankshaft pulley bolt and locate bolt seating surface as
10 mm (0.39 in) from its original position.
CAUTION:
Do not remove crankshaft pulley bolt as it will be used as a
supporting point for suitable puller.
c. Place suitable puller tab on holes of crankshaft pulley, and pull
crankshaft pulley through.
CAUTION:
Do not put suitable puller tab on crankshaft pulley periph-
ery, as this will damage internal damper.
22. Remove oil pan (upper and lower). Refer to EM-30, "
OIL PAN AND OIL STRAINER" .
23. Remove front timing chain case.
a. Loosen mounting bolts with power tool in reverse order as
shown in the figure.
b. Insert suitable tool into the notch at the top of front timing chain
case as shown (1) in the figure.
c. Pry off case by moving tool as shown (2) in the figure.

U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J - 3 7 2 2 8 ) ] o r a n e q u i v a l e n t
tool to cut liquid gasket for removal.
CAUTION:

Do not use screwdrivers or something similar.

After removal, handle it carefully so it does not tilt,
cant, or warp under a load.
PBIC1103E
EMQ0477D
KBIA1303E
SEM156F

CAMSHAFT
EM-89
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2004 November 2004 FX35/FX45
5. Tighten camshaft brackets in the following steps, in numerical
order as shown in the figure.
a. Tighten No. 7 to 10, then tighten No. 1 to 6 in order as shown.
b. Tighten all bolts in numerical order as shown.
c. Tighten all bolts in the numerical order as shown.
CAUTION:
After tightening mounting bolts of No. 1 camshaft brackets
(No. 1), be sure to wipe off excessive liquid gasket from the
parts list below.

Mating surface of rocker cover

Mating surface of rear timing chain case
6. Measure difference in levels between front end faces of No. 1
camshaft bracket and cylinder head.

If measurement is outside the specified range, re-install cam-
shaft and camshaft bracket.
7. Inspect and adjust valve clearance. Refer to EM-89, "
Valve Clearance" .
8. Install in the reverse order of removal after this step.
Va l v e C l e a r a n c eABS004XG
INSPECTION
Perform inspection as follows after removal, installation or replace-
ment of camshaft or valve-related parts, or if there is unusual engine
conditions regarding valve clearance.
1. Remove right and left rocker covers with power tool. Refer to EM-51, "
ROCKER COVER" .
2. Measure valve clearance as below:
a. Set No. 1 cylinder at TDC of its compression stroke. : 1.96 N·m (0.20 kg-m, 1 ft-lb)
: 5.88 N·m (0.60 kg-m, 4 ft-lb)
: 10.4 N·m (1.1 kg-m, 8 ft-lb)
PBIC2050E
Standard : –0.14 to 0.14 mm (–0.0055 to 0.0055 in)
EMQ0044D
SEM713A

OIL SEAL
EM-95
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2004 November 2004 FX35/FX45
Removal and Installation of Front Oil SealABS004X5
REMOVAL
1. Remove the following parts:

Front engine undercover (With power tool)

Drive belt; Refer to EM-15, "DRIVE BELTS" .
2. Remove crankshaft pulley with the following procedure:
a. Remove rear cover plate (2WD) or starter motor (AWD) and set
ring gear stopper (SST) as shown in the figure. Refer to SC-10,
"STARTING SYSTEM" .
b. Loosen crankshaft pulley bolt and locate bolt seating surface as
10 mm (0.39 in) from its original position.
CAUTION:
Do not remove crankshaft pulley bolt as it will be used as a
supporting point for suitable puller.
c. Place suitable puller tab on holes of crankshaft pulley, and pull
crankshaft pulley through.
CAUTION:
Do not put suitable puller tab on crankshaft pulley periph-
ery, as this will damage internal damper.
3. Remove front oil seal using a suitable tool.
CAUTION:
Be careful not to damage front timing chain case and crank-
shaft.
PBIC1098E
PBIC1103E
EMQ0477D
SEM829E

EM-96
[VQ35DE]
OIL SEAL
Revision: 2004 November 2004 FX35/FX45
INSTALLATION
1. Apply engine oil on new front oil seal.
2. Using a suitable drift, press fit until the height of front oil seal is
level with the mounting surface.

Suitable drift: outer diameter 59 mm (2.32 in), inner diameter
49 mm (1.93 in).
CAUTION:
Press fit straight and avoid causing burrs or tilting oil
seal.
3. Perform steps in the reverse order of removal for the following operations.
Removal and Installation of Rear Oil SealABS004X6
REMOVAL
1. Remove oil pan (upper). Refer to EM-30, "OIL PAN AND OIL STRAINER" .
2. Remove transmission assembly. Refer to AT- 2 6 6 , "
TRANSMISSION ASSEMBLY" .
3. Remove drive plate with power tool. Fix crankshaft with a ring gear stopper [SST: KV1011770 (J-44716)],
and remove mounting bolts.

Loosen mounting bolts in diagonal order.
CAUTION:

Do not disassemble drive plate.

Never place drive plate with signal plate facing down.

When handling signal plate, take care not to damage or
scratch it.

Handle signal plate in a manner that prevents it from
becoming magnetized.
4. Use a seal cutter (SST) to cut away liquid gasket and remove
rear oil seal retainer.
CAUTION:
Be careful not to damage mounting surface.
NOTE:
Rear oil seal and retainer form a single part and are handled as
an assembly.
INSTALLATION
1. Remove old liquid gasket on mating surface of cylinder block and oil pan using scraper.
SEM715A
SEM760G
SEM830E

EM-98
[VQ35DE]
CYLINDER HEAD
Revision: 2004 November 2004 FX35/FX45
CYLINDER HEADPFP:11041
On-Vehicle ServiceABS004X7
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-51, "
FUEL PRESSURE RELEASE" .
3. Disconnect fuel pump fuse to avoid fuel injection during mea-
surement.
4. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
5. Remove ignition coil and spark plug from each cylinder. Refer to EM-42, "
IGNITION COIL" and EM-43,
"SPARK PLUG (PLATINUM-TIPPED TYPE)" .
6. Connect engine tachometer (not required in use of CONSULT-ll).
7. Install compression gauge with compression gauge adapter
(commercial service tool) onto spark plug hole.

Use compression gauge adapter 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 cylinder head during
removal.
8. With accelerator pedal fully depressed, turn ignition switch to
“START” for cranking. When gauge pointer stabilizes, read the
compression pressure and engine rpm. Perform these steps to
check each cylinder.
Compression pressure:
Unit: kPa (kg/cm2 , psi) /rpm
CAUTION:
Always use a fully changed battery to obtain specified engine speed.

If engine speed is out of specified range, check battery liquid for proper gravity. Check engine speed
again with normal battery gravity.
SBIA0466E
PBIC0900E
SBIA0533E
Standard Minimum Deference limit between cylinders
1,275 (13.0, 185) / 300 981 (10.0, 142) / 300 98 (1.0, 14) / 300

EM-100
[VQ35DE]
CYLINDER HEAD
Revision: 2004 November 2004 FX35/FX45
NOTE:
At the time of the start of this procedure front suspension member is removed, and cylinder head is
hanged by hoist with engine slinger installed.
3. Release hoist from hanging, then remove engine slinger.
4. Remove the following components and related 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-26, "WATER INLET AND THERMOSTAT ASSEM-
BLY" .

Water outlet and water piping. Refer to CO-28, "WATER OUTLET AND WATER PIPING" .
5. Remove cylinder head loosening bolts with power tool in reverse
order shown in the figure and using cylinder head bolt wrench
(commercial service tool).
6. Remove cylinder head gaskets.
INSPECTION AFTER REMOVAL
Outer Diameter of Cylinder Head Bolts

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-139, "
CYLIN-
DER BLOCK DISTORTION" .
1. Using 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.
PBIC2057E
Limit (d1 - d2) : 0.11 mm (0.0043 in)
SEM957E