2008 INFINITI FX35 Timing chain

TIMING CHAINEM-67
< SERVICE INFORMATION > [VQ35DE]
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b. Loosen crankshaft pulley bolt and rotate bolt seating surface at
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 ta b on crankshaft pulley periph-
ery, as this will damage internal damper.
24. Remove front timing chain case as follows:
a. Loosen mounting bolts in reverse order as shown in the figure.
b. Insert a suitable tool into the notch at the top of front timing chain case as shown (1).
c. Pry off case by moving the tool as shown (2).  Use the seal cutter [SST: KV10111100 (J37228)] to cut liquidgasket for removal.
CAUTION:
 Do not use a screwdriver or something similar.
 After removal, handle front timing chain case carefully so it does not tilt, cant, or warp under a load.
PBIC1103E
EMQ0477D
KBIA1303E
SEM156F
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-68
< SERVICE INFORMATION >[VQ35DE]
TIMING CHAIN
25. Remove O-rings from rear timing chain case.
26. Remove water pump cover and chain tensioner cove
r from front timing chain case, if necessary.
 Use the seal cutter [SST: KV10111100 (J37228)] to cut liquid gasket for removal.
27. Remove front oil seal from front timing chain case using a suit- able tool.
 Use a screwdriver for removal.
CAUTION:
Be careful not to damage front timing chain case.
28. Remove timing chain tensioner (primary) as follows:
a. Remove lower mounting bolt.
b. Loosen upper mounting bolt slowly, and then turn timing chain tensioner (primary) on the mounti ng bolt so that plunger is fully
expanded.
NOTE:
Even if plunger is fully expanded, it is not dropped from the body
of timing chain tensioner (primary).
c. Remove upper mounting bolt, and then remove timing chain ten- sioner (primary).
PBIC2548E
EMQ0032D
PBIC3562E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TIMING CHAINEM-69
< SERVICE INFORMATION > [VQ35DE]
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29. Remove internal chain guide, tension guide and slack guide.
NOTE:
Tension guide can be removed after removing timing chain (pri-
mary).
30. Remove timing chain (primary) and crankshaft sprocket. CAUTION:
After removing timing chain (primary), do not tu rn crankshaft and camshaft separately, or valves
will strike th e piston heads.
31. Remove timing chain (secondary) and camshaft sprockets as follows:
a. Attach suitable stopper pin to the right and left timing chain ten- sioners (secondary).
NOTE:
 Use approximately 0.5 mm (0.020 in) dia. hard metal pin as astopper pin.
 For removal of timing chain tensioner (secondary), refer to
EM-83, "
Component". [Removing camshaft bracket (No. 1) is
required.]
b. Remove camshaft sprocket (INT and EXH) mounting bolts.  Secure the hexagonal portion of camshaft using a wrench to
loosen mounting bolts.
CAUTION:
Do not loosen the mounting bolts with securing anything
other than the camshaft hexagonal portion or with ten-
sioning the timing chain.
c. Remove timing chain (secondary) together with camshaft sprockets.  Turn camshaft slightly to secure slackness of timing chain on timing chain tensioner (secondary) side.
PBIC2266E
PBIC2047E
KBIA1698J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-70
< SERVICE INFORMATION >[VQ35DE]
TIMING CHAIN
 Insert 0.5 mm (0.020 in)-thick metal or resin plate between tim-
ing chain and timing chain tensioner plunger (guide). Remove
timing chain (secondary) together with camshaft sprockets
with timing chain loose from guide groove.
CAUTION:
Be careful of plunger comi ng-off when removing timing
chain (secondary). This is because plunger of timing
chain tensioner (secondary) moves during operation,
leading to coming-off of fixed stopper pin.
NOTE:
Camshaft sprocket (INT) is tw o-for-one structure of primary
and secondary sprockets.
 When handling camshaft sprocket (INT), be careful of the fol-
lowing caution:
CAUTION:
 Handle carefully to avoid any shock to camshaftsprocket.
 Do not disassemble. (Do not loosen bolts “A” as shown in the figure).
32. Remove rear timing chain case as follows:
a. Loosen and remove mounting bolts in reverse order as shown in the figure.
b . C u t l i q u i d g a s k e t u s i n g t h e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 (J37228)] and remove rear timing chain case.
CAUTION:
 Do not remove plate metal cover of oil passage.
 After removal, handle rear timing chain case carefully so
it does not tilt, cant, or warp under a load.
PBIC1978E
PBIC2980E
SEM735G
KBIA1307E
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TIMING CHAINEM-71
< SERVICE INFORMATION > [VQ35DE]
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33. Remove O-rings from cylinder head.
34. Remove O-rings from cylinder block.
35. Remove timing chain tensioners (secondary) from cylinder head as follows, if necessary.
a. Remove camshaft brackets (No. 1). Refer to
EM-84, "
Removal and Installation".
b. Remove timing chain tensioners (secondary) with a stopper pin attached.
36. Use a scraper to remove all traces of liquid gasket from front and rear timing chain cases, and opposite mating surfaces.
 Remove old liquid gasket from the bolt hole and thread.
SBIA0496E
PBIC0788E
SEM737G
PBIC2084E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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
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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
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