Infiniti FX35 / FX45. Manual - part 637

TIMING CHAIN

EM-65

< SERVICE INFORMATION >

[VQ35DE]

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Removal and Installation

INFOID:0000000001325730

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, "Removal and Installation"

.

REMOVAL

1.

Remove front tire.

2.

Disconnect negative battery terminal.

3.

Remove engine cover with power tool. Refer to 

EM-19, "Component"

.

4.

Remove air cleaner case assembly. Refer to 

EM-17, "Component"

.

5.

Remove front and rear engine undercover with power tool.

6.

Release the fuel pressure. Refer to 

EC-87, "Fuel Pressure Check"

.

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.

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.

9.

Remove engine harnesses.

10. Remove intake manifold collectors (upper and lower). Refer to 

EM-19, "Component"

.

11. Remove radiator cooling fan assembly. Refer to 

CO-20, "Component"

.

12. Remove drive belts. Refer to 

EM-15, "Removal and Installation"

.

13. Remove A/C compressor from bracket with piping connected, and temporarily secure it aside. Refer to

ATC-121, "Component"

.

14. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.

Refer to 

PS-27, "On-Vehicle Inspection and Service"

.

15. Remove power steering oil pump bracket. Refer to 

PS-27, "On-Vehicle Inspection and Service"

.

16. Remove alternator. Refer to 

SC-19, "System Description"

.

17. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.

18. Remove intake valve timing control covers.

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. Spacer

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)

EM-66

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[VQ35DE]

TIMING CHAIN

• Loosen mounting bolts in reverse order as shown in the figure.
• Use the seal cutter [SST: KV10111100 (J37228)] to cut liquid

gasket for removal.

CAUTION:

Shaft is internally jointed with camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.

19. Remove collared O-ring from front timing chain case (left and

right side).

20. Remove rocker covers (right and left). Refer to 

EM-51, "Component"

.

21. Remove oil pans (lower and upper). Refer to 

EM-30, "Component (2WD Models)"

.

22. Obtain No. 1 cylinder at TDC of its compression stroke as follows:
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 align

as shown in the figure.

23. Remove crankshaft pulley as follows:
a.

Remove  rear cover plate (2WD models) or starter motor (AWD models) and set the ring gear stopper
(SST). Refer to 

EM-30, "Component (2WD Models)"

 (2WD models) or 

SC-8, "System Description"

 (AWD

models).

SEM728G

PBIC2631E

KBIA1717J

SEM418G

TIMING CHAIN

EM-67

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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 tab 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 liquid

gasket 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

EM-68

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[VQ35DE]

TIMING CHAIN

25. Remove O-rings from rear timing chain case.

26. 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. 

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 mounting 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