service INFINITI FX35 2008 Service Manual

EM-72
< SERVICE INFORMATION >[VQ35DE]
TIMING CHAIN
37. Use a scraper to remove all traces of liquid gasket from water
pump cover, chain tensioner cover and intake valve timing con-
trol covers.
INSPECTION AFTER REMOVAL
Timing Chain
Check for cracks and any excessive wear at link plates and roller
links of timing chain. Replace timing chain as necessary.
INSTALLATION
NOTE:
The below figure shows the relationship between the mating mark on each timing chain and that on the corre-
sponding sprocket, with the components installed.
1. Install timing chain tensioners (secondary) to cylinder head as follows if removed. Refer to EM-84,
"Removal and Installation".
a. Install timing chain tensioners (secondary) with a stopper pin attached and new O-rings.
b. Install camshaft brackets (No. 1). Refer to EM-84, "
Removal and Installation".
SEM926E
PBIC0282E
PBIC4662E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TIMING CHAINEM-73
< SERVICE INFORMATION > [VQ35DE]
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2. Install rear timing chain case as follows:
a. Install new O-rings onto cylinder block.
b. Install new O-rings to cylinder head.
c. Apply liquid gasket with the tube presser (commercial se
rvice tool) to rear timing chain case back side as
shown in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to GI-44, "
Recommended Chemical Prod-
uct and Sealant".
CAUTION:
 For “A” in the figure, completely wipe out liqui d gasket extended on a portion touching at engine
coolant.
PBIC0788E
SBIA0496E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-74
< SERVICE INFORMATION >[VQ35DE]
TIMING CHAIN
 Apply liquid gasket on installa
tion 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 types mounting bolts. Refer to the following forlocating bolts.
f. After all bolts are tightened, retighten them to the s pecified torque in numerical order shown in the figure.
 If liquid gasket protrudes, wipe it off immediately.
g. After installing rear timing chain case, check the surface height difference between the following parts on the oil pan (upper)
mounting surface.
 If not within the standard, repeat the installation procedure.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)
Standard Rear timing chain case to cylinder block:
–0.24 to 0.14 mm (–0.009 to 0.006 in)
PBIC2680E
SEM735G
SEM943G
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TIMING CHAINEM-75
< SERVICE INFORMATION > [VQ35DE]
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3. Install water pump with new O-rings. Refer to
CO-22, "Component".
4. Make sure that dowel pin hole, dowel pin and crankshaft key are located as shown in the figure. (No. 1 cylinder at compression
TDC)
NOTE:
Though camshaft does not stop at the position as shown in the
figure, for the placement of cam nose, it is generally accepted
camshaft is placed for the same direction of the figure.
CAUTION:
Hole on small dia. side must be used for intake side dowel pin hol e. Do not misidentify (ignore big
dia. side).
5. Install timing chains (secondary) and camshaft sprockets as follows: CAUTION:
Mating marks between timing ch ain and sprockets slip easily. Confirm all mating mark positions
repeatedly during the installation process.
a. Push plunger of timing chain tensioner (secondary) and keep it pressed in with a stopper pin.
b. Install timing chains (secondary) and camshaft sprockets.  Align the mating marks on timing chain (secondary) (gold link)with the ones on intake and exhaust camshaft sprockets
(punched), and install them.
NOTE:
 Mating marks for intake camshaft sprocket are on the back
side of camshaft sprocket (secondary).
 There are two types of mating marks, circle and oval types. They should be used for the right and left banks, respec-
tively.
 Align dowel pin and pin hole on camshafts with the groove and dowel pin on sprockets, and install them.
 On the intake side, align pin hole on the small diameter side of the camshaft front end with dowel pin on the back side of cam-
shaft sprocket, and install them.
 On the exhaust side, align dowel pin on camshaft front end with pin groove on camshaft sprocket, and install them.Camshaft dowel pin hole (intake side)
: At cylinder head upper face side in each bank.
Camshaft dowel pin (exhaust side) : At cylinder head upper face side in each bank.
Crankshaft key : At cylinder head side of right bank.
KBIA1073E
SEM430G
Right bank : Use circle type.
Left bank : Use oval type.
PBIC2981E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-76
< SERVICE INFORMATION >[VQ35DE]
TIMING CHAIN
 In case that positions of each mating mark and each dowel pin are not fit on mating parts, make fine
adjustment to the position holding the hexagonal portion on camshaft with wrench or equivalent.
 Mounting bolts for camshaft sprockets must be tightened in the next step. Tightening them by hand is
enough to prevent the dislocation of dowel pins.
 It may be difficult to visually check the dislocation of mating marks during and after installation. To make the matching eas-
ier, make a mating mark on the top of sprocket teeth and its
extended line in advance with paint.
c. After confirming the mating marks are aligned, tighten camshaft sprocket mounting bolts.
 Secure camshaft using a wrench at the hexagonal portion totighten mounting bolts.
d. Pull stopper pins out from timing chain tensioners (secondary).
6. Install tension guide.
7. Install timing chain (primary) as follows:
a. Install crankshaft sprocket.  Make sure the mating marks on crankshaft sprocket face thefront of the engine.
b. Install timing chain (primary).
PBIC0891E
KBIA1698J
PBIC2110E
SEM929E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TIMING CHAINEM-77
< SERVICE INFORMATION > [VQ35DE]
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 Install timing chain (primary) so the mating mark (punched) on
camshaft sprocket is aligned with the pink link on timing chain,
while the mating mark (notched) on crankshaft sprocket is
aligned with the orange one on timing chain, as shown in the
figure.
 When it is difficult to align mating marks of timing chain (pri-
mary) with each sprocket, gradually turn camshaft using
wrench on the hexagonal portion to align it with the mating
marks.
 During alignment, be careful to prevent dislocation of mating mark alignments of timing chains (secondary).
8. Install internal chain guide, slack guide and timing chain ten- sioner (primary).
CAUTION:
PBIC3494E
PBIC2109E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-78
< SERVICE INFORMATION >[VQ35DE]
TIMING CHAIN
Do not overtighten slack guide
mounting bolts. It is normal
for a gap to exist under the bo lt seats when mounting bolts
are tightened to the specification.
9. Install the timing chain tensioner (primary) with the following procedure:
a. Pull plunger stopper tab up (or turn lever downward) so as to remove plunger stopper tab from the rachet of plunger.
NOTE:
Plunger stopper tab and lever are synchronized.
b. Push plunger into the inside of tensioner body.
c. Hold plunger in the fully compressed position by engaging plunger stopper tab with the tip of ratchet.
d. To secure lever, insert stopper pin through hole of lever into ten- sioner body hole.
 The lever parts and the tab are synchronized. Therefore, theplunger will be secured under this condition.
NOTE:
Figure shows the example of 1.2 mm (0.047 in) diamet er thin screwdriver being used as the stopper pin.
e. Install timing chain tensioner (primary).  Remove any dirt and foreign materials completely from theback and the mounting surfaces of timing chain tensioner (pri-
mary).
f. Pull out stopper pin after installing, and then release plunger.
10. Make sure again that the mating marks on sprockets and timing chain have not slipped out of alignment.
11. Install new O-rings on rear timing chain case.
12. Install new front oil seal on front timing chain case.  Apply new engine oil to both oil seal lip and dust seal lip.
PBIC2633E
PBIC3568E
PBIC3569E
PBIC2548E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TIMING CHAINEM-79
< SERVICE INFORMATION > [VQ35DE]
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 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.
13. Install water pump cover and chain tensioner cover to front timing chain case.  Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to front timing chain case as shown
in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
14. Install front timing chain case as follows:
SEM715A
PBIC0790E
SEM744GA
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-80
< SERVICE INFORMATION >[VQ35DE]
TIMING CHAIN
a. Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to front timing chain case back side as
shown in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
b. Install front timing chain case as to fit its dowel pin hole together dowel pin on rear timing chain case.
c. Tighten mounting bolts to the specified torque in numerical order as shown in the figure.
 There are two types of mounting bolts. Refer to the followingfor locating bolts.
d. After all bolts are tightened, retighten them to the specified torque in numerical order shown in the figure.
CAUTION:
Be sure to wipe off any excessive liquid gasket l eaking on surface mating with oil pan (upper).
e. After installing front timing chain case, check the surface height difference between the following parts on the oil pan (upper)
mounting surface.
 If not within the standard, repeat the installation procedure.
15. Install right and left intake valve timing control covers as follows:
a. Install new seal rings in shaft grooves.
PBIC2658E
M8 bolts : 1, 2 : 28.4 N·m (2.9 kg-m, 21 ft-lb)
M6 bolts : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
Standard Front timing chain case to rear timing chain case:
–0.14 to 0.14 mm (–0.006 to 0.006 in)
KBIA1303E
SEM943G
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TIMING CHAINEM-81
< SERVICE INFORMATION > [VQ35DE]
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b. Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to intake valve timing control covers as
shown in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
c. Install new collared O-rings 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 front timing chain case with holes to install intake valve timing control covers.
e. Tighten mounting bolts in numerical order as shown in the fig- ure.
16. Install oil pans (upper and lower). Refer to EM-30, "
Component (2WD Models)".
17. Install rocker covers (right and left banks). Refer to EM-51, "
Component".
18. Install crankshaft pulley as follows:
a. Fix crankshaft using the ring gear stopper [SST: KV10117700 (J44716)].
b. Install crankshaft pulley, taking care not to damage front oil seal.  When press-fitting crankshaft pulley with plastic hamme r, tap on its center portion (not circumference).
c. Tighten crankshaft pulley bolt.
d. Put a paint mark on crankshaft pulley aligning with angle mark on crankshaft pulley bolt.
SBIA0492E
PBIC2631E
PBIC0918E
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C