lan s 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

FRONT TIMING CHAIN CASE
EM-59
[VQ35DE]
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Revision: 2004 November 2004 FX35/FX45
4. Install water pump cover and chain tensioner cover to front tim-
ing chain case.

Apply liquid gasket to front timing chain case front side 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".
5. Install front timing chain case as follows:
a. Apply liquid gasket to front timing chain case back side 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".
b. Install oil pan gasket front side.

Apply liquid gasket to oil pan gasket 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".

Align notch of front timing chain case with protrusion of oil pan
gasket.
SEM744GA
PBIC1133E
SEM964E
PBIC1114E

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

FRONT TIMING CHAIN CASE
EM-61
[VQ35DE]
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Revision: 2004 November 2004 FX35/FX45
7. Install two mounting bolts in front of oil pan (upper) in numerical
order as shown in the figure.
8. Install oil pan (lower). Refer to EM-30, "
OIL PAN AND OIL STRAINER" .
9. Install right and left intake valve timing control covers as follows:
a. Install seal rings in shaft grooves.
b. Apply liquid gasket to intake valve timing control covers with
tube presser [SST: WS39930000 ( – )].
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS".
c. Install collared O-ring in front timing chain case oil hole (left and
right sides).
d. Being careful not to move seal ring from the installation groove,
align dowel pins on chain case with the holes to install intake
valve timing control covers.
e. Tighten bolts in the numerical order as shown in the figure.
10. Install crankshaft pulley as follows:
a. Fix crankshaft using ring gear stopper [SST: KV10117700 (J-44716)].
b. Install crankshaft pulley, taking care not to damage front oil seal.

When press-fitting crankshaft pulley with a plastic hammer, tap on its center portion (not circumfer-
ence).
c. Tighten bolt. : 17.2 N·m (1.8 kg-m, 13 ft-lb)
PBIC1116E
SBIA0492E
PBIC2045E
: 11.3 N·m (1.2 kg-m, 8 ft-lb)
PBIC0918E
: 44.1 N·m (4.5 kg-m, 33 ft-lb)

EM-62
[VQ35DE]
FRONT TIMING CHAIN CASE
Revision: 2004 November 2004 FX35/FX45
d. Put a paint mark on crankshaft pulley aligning with angle mark
on crankshaft pulley bolt. Then, further retighten bolt by “60”
degrees (equivalent to one graduation)].
11. Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns
smoothly.
12. For the following operations, perform steps in the reverse order of removal.
NOTE:
If hydraulic pressure inside chain tensioner drops after removal/installation, slack in the guide may gener-
ate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
INSPECTION AFTER INSTALLATION

Before starting engine, check the levels of engine coolant, lubrications and working fluid. If less than
required quantity, fill to the specified level.

Run engine to check for unusual noise and vibration.

Warm up engine thoroughly to make sure there is no leakage of engine coolant, engine oil and working
fluid, fuel and exhaust gas.

Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.

After cooling down engine, again check amounts of engine coolant, engine oil and working fluid. Refill to
specified level, if necessary.
Summary of the inspection items:
SEM751G
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Working fluid Level Leakage Level

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-72
[VQ35DE]
TIMING CHAIN
Revision: 2004 November 2004 FX35/FX45
1. Install timing chain tensioners (secondary) to cylinder head as the following if removed. Refer to EM-87,
"INSTALLATION" .
a. Install chain tensioners with stopper pin attached and new O-rings.
b. Install No. 1 camshaft brackets. Refer to EM-87, "
INSTALLATION" .
2. Install new O-rings onto cylinder block.
3. Install new O-rings to cylinder head.
4. Apply liquid gasket to rear timing chain case back side as shown with tube presser [SST: WS39930000 ( –
)].
Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-48, "
RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS".
CAUTION:

For “A” in the figure, completely wipe out liquid gasket extended on a portion touching at
engine coolant.
PBIC0788E
SBIA0496E

TIMING CHAIN
EM-73
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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-78
[VQ35DE]
TIMING CHAIN
Revision: 2004 November 2004 FX35/FX45
16. Install new O-rings on rear timing chain case.
17. 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.
18. Install water pump cover and chain tensioner cover to front tim-
ing chain case.

Apply liquid gasket to front timing chain case front side 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".
SBIA0497E
SEM715A
PBIC0790E
SEM744GA