2008 INFINITI FX35 Timing chain

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGEM-13
< SERVICE INFORMATION > [VQ35DE]
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3. Specify the operating condition of the engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
A: Closely related B: Related C: Sometimes related —: Not related Location
of noise Type of
noise Operating condition of engine
Source of noise Check item Refer-
ence page
Before
warm- up After
warm- up When
start- ing When
idling When
racing While
driving
Top of en-
gine
Rocker
cover
Cylinder
head Ticking or
clicking
CA—AB— Tappet
noiseValve clearance
EM-91
Rattle C A — A B C Camshaft
bearing
noiseCamshaft runout
Camshaft journal oil
clearance EM-84EM-84
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil panSlap or
knock
—A—B B— Piston pin
noisePiston to piston pin oil
clearance
Connecting rod bushing
oil clearance EM-138
EM-138
Slap or
rap
A——B B A Piston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion EM-138EM-138
EM-138
EM-138
Knock A B C B B B
Connect-
ing rod
bearing
noiseConnecting rod bushing
oil clearance
Connecting rod bearing
oil clearance EM-138EM-138
Knock A B — A B C
Main bear-
ing noiseMain bearing oil clear-
ance
Crankshaft runout EM-138
EM-138
Front of
engine
Timing
chain caseTapping or
ticking
AA—BBB Timing
chain and
timing
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operation
EM-65
EM-64
Front of
engineSqueak-
ing or fizz-
ing
AB—B—C Drive belts
(Sticking
or slip-
ping)Drive belts deflection
EM-14
CreakingABABAB Drive belts
(Slipping)Idler pulley bearing op-
eration
Squall
Creak AB—BAB Water
pump
noiseWater pump operation
CO-22
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

OIL PAN AND OIL STRAINEREM-33
< SERVICE INFORMATION > [VQ35DE]
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 Apply liquid gasket to oil pan gaskets as shown in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
 To install, align protrusion of oil pan gasket with notches of front timing chain case and rear oil seal retainer.
 Install oil pan gasket with smaller arc to front timing chain case
side.
c. Install new O-rings on the bottom of cylinder block and oil pump.
d. Apply a continuous bead of liquid gasket with the tube presser (commercial service tool) to the cylinder block mating surface of
oil pan (upper) to a limited portion as shown in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
CAUTION:
 For bolt holes with marks (5 locations), apply liquid
gasket outside the holes.
 Apply a bead of 4.5 to 5.5 mm (0.177 to 0.217 in) in diame- ter to area “A”.
 Attaching should be done wi thin 5 minutes after coating.
e. Install oil pan (upper). CAUTION:
Install avoiding misalignment of both oil pan gaskets and O-rings.
PBIC2630E
PBIC1145E
PBIC1144E
PBIC2300E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

OIL PAN AND OIL STRAINEREM-39
< SERVICE INFORMATION > [VQ35DE]
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a. Use a scraper to remove old liquid gasket from mating surfaces.
CAUTION:
Do not scratch or damage th e mating surfaces when clean-
ing off old liquid gasket.
 Also remove old liquid gasket from mating surface of cylinder block.
 Remove old liquid gasket from the bolt holes and threads.
b. Install new oil pan gaskets.  Apply liquid gasket to oil pan gaskets as shown in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
 To install, align protrusion of oil pan gasket with notches of front timing chain case and rear oil seal retainer.
 Install oil pan gasket with smaller arc to front timing chain case side.
c. Install new O-rings on the bottom of cylinder block and oil pump.
MEM108A
PBIC2630E
PBIC1145E
PBIC1144E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-54
< SERVICE INFORMATION >[VQ35DE]
FRONT TIMING CHAIN CASE
FRONT TIMING CHAIN CASE
Removal and InstallationINFOID:0000000001325728
NOTE:
 This section describes removal/installation procedure
of front timing chain case and timing chain related
parts without removing oil pan (upper) on the 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-64, "
Com-
ponent".
 Refer to EM-64, "
Component" for component parts location.
REMOVAL
1. Disconnect negative battery terminal. Refer to SC-4, "How to Handle Battery".
2. Remove engine cover with power tool. Refer to EM-19, "
Component".
3. Remove air cleaner case assembly. Refer to EM-17, "
Component".
4. Remove front and rear engine undercover with power tool.
5. Release the fuel pressure. Refer to EC-87, "
Fuel Pressure Check".
6. Drain engine oil. Refer to LU-7, "
Changing Engine Oil".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine oil on drive belts.
7. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
8. Separate engine harnesses removing their brackets from front timing chain case.
9. Remove drive belts. Refer to EM-15, "
Removal and Installation".
10. Remove intake manifold colle ctors (upper and lower). Refer to EM-19, "
Component".
11. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-27, "
On-Vehicle Inspection and Service".
12. Remove power steering oil pump bracket. Refer to PS-27, "
On-Vehicle Inspection and Service".
13. Remove alternator. Refer to SC-19, "
System Description".
14. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
15. Remove intake valve timing control covers.  Loosen mounting bolts in reverse order as shown in the figure.
 Use the seal cutter [SST: KV10111100 (J37228)] to cut liquidgasket for removal.
CAUTION:
Shaft is internally jointed wi th camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.
SEM728G
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT TIMING CHAIN CASEEM-55
< SERVICE INFORMATION > [VQ35DE]
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16. Remove collared O-ring from front timing chain case (left and
right side).
17. Remove rocker covers (right and left banks). Refer to EM-51, "
Component".
NOTE:
When only timing chain (primary) is removed, rocker cover does not need to be removed.
18. Obtain No. 1 cylinder at TDC of its compression stroke as follows: NOTE:
When timing chain is not removed/installed, this step is not required.
a. Rotate crankshaft pulley clockwise to align timing mark (grooved line without color) with timing indicator.
b. Make sure that intake and exhaust cam noses on No. 1 cylinder (engine front side of right bank) are located as shown in the fig-
ure.
 If not, turn crankshaft one revolution (360 degrees) and alignas shown in the figure.
NOTE:
When only timing chain (primary) is removed, rocker cover does
not need to be removed. To make sure that No. 1 cylinder is at
its compression TDC, remove front timing chain case first. Then
check mating marks on camshaft sprockets. Refer to EM-65,
"Removal and Installation".
19. Remove crankshaft pulley as follows:
a. Remove rear cover plate (2WD models) or star ter motor (AWD models) and set ring gear stopper (SST).
Refer to EM-30, "
Component (2WD Models)" (2WD models) or SC-8, "System Description" (AWD mod-
els).
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.
PBIC2631E
KBIA1717J
SEM418G
PBIC1103E
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EM-56
< SERVICE INFORMATION >[VQ35DE]
FRONT TIMING CHAIN CASE
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.
20. Remove oil pan (lower). Refer to EM-30, "
Component (2WD Models)".
21. Loosen two mounting bolts in front of oil pan (upper) with power tool in reverse order shown in figure.
22. Remove front timing chain case as follows:
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).
c. Pry off case by moving a tool as shown (2).  Use the seal cutter [SST: KV10111100 (J37228)] to cut liquidgasket for removal.
CAUTION:
 Do not use a screwdrivers or something similar.
 After removal, handle front timing chain case carefully
so it does not tilt, cant, or warp under a load.
EMQ0477D
PBIC1116E
KBIA1303E
SEM156F
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FRONT TIMING CHAIN CASEEM-57
< SERVICE INFORMATION > [VQ35DE]
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23. Remove O-rings from rear timing chain case.
24. Remove oil pan gasket (front). Refer to
EM-30, "
Component (2WD Models)".
25. Remove water pump cover and chain tensioner cover from front timing chain case, if necessary.  Use the seal cutter [SST: KV10111100 (J37228)] to cut liquid gasket for removal.
26. Remove front oil seal from front timing chain case using a suit- able tool.
 Use a screwdriver for removal.
CAUTION:
Exercise care not to damage front timing chain case.
27. Remove timing chain and related parts. Refer to EM-64, "
Component".
28. Use a scraper to remove all traces of old liquid gasket from front and rear timing chain cases and oil pan (upper), and liquid gas-
ket mating surfaces.
CAUTION:
Be careful not to allow gasket fragments to enter oil pan.
 Remove old liquid gasket from bolt hole and thread.
PBIC2548E
EMQ0032D
SEM737G
PBIC2084E
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EM-58
< SERVICE INFORMATION >[VQ35DE]
FRONT TIMING CHAIN CASE
29. 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-64, "Component".
2. Hammer dowel pins (right 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 lip and dust seal lip.
 Install it so that each seal lip is oriented as shown in the figure.
 Using a suitable drift [outer diameter: 60 mm (2.36 in)], 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.
4. Install water pump cover and chain tensioner cover to front timing chain case.
SEM926E
PBIC1101E
SEM715A
PBIC0790E
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