Infiniti FX35, FX50 (S51). Manual - part 949

EM-96

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REAR TIMING CHAIN CASE

Disassembly

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1.

Remove front timing chain case and timing chain. Refer to 

EM-54, "Removal and Installation"

.

2.

Remove water pump. Refer to 

CO-19, "Exploded View"

.

3.

Remove oil pan (upper). Refer to 

EM-100, "2WD : Exploded View"

 (2WD models) or 

EM-103, "AWD :

Exploded View"

 (AWD models).

4.

Remove rear timing chain case as per the following:

a.

Loosen and remove mounting bolts in reverse order as shown in
the figure.

b.

Cut liquid gasket using the seal cutter [SST: KV10111100 (J-
37228)] and remove rear timing chain case.

CAUTION:

• Never remove plate metal cover (1) of oil passage.
• After removal, handle rear timing chain case carefully so

it does not tilt, cant, or warp under a load.

10. Slack guide

11. Crankshaft sprocket

12.

Camshaft sprocket (INT)

13.

Valve timing control cover gasket 
(bank 1)

14. Seal ring

15.

Valve timing control cover (bank 1)

16. Oil level gauge

17. Oil level gauge guide

18.

O-ring

19.

Intake valve timing control solenoid 
valve (bank 2)

20. Valve timing control cover (bank 2) 21.

Valve timing control cover gasket (bank 2)

22. Front oil seal

23. Crankshaft pulley

24.

Crankshaft pulley bolt

25.

Intake valve timing control solenoid 
valve (bank 1)

26. Power steering oil pump bracket

27.

Idler pulley bracket

28. Alternator bracket

29. Water outlet (front)

30.

Front timing chain case

31. Rear timing chain case

32. O-ring

33.

O-ring

34. O-ring

A.

Refer to 

EM-97

B.

Refer to 

EM-54

C.

Oil filter

Refer to 

GI-4, "Components"

 for symbols in the figure.

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REAR TIMING CHAIN CASE

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< UNIT DISASSEMBLY AND ASSEMBLY >

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5.

Remove O-rings (1) from cylinder block.

6.

Remove timing chain tensioners (secondary) from cylinder head as per the following, if necessary.

a.

Remove camshaft brackets (No. 1). Refer to 

EM-70, "Exploded View"

.

b.

Remove timing chain tensioners (secondary) with a stopper pin
(A) attached.

Assembly

INFOID:0000000005245166

1.

Install timing chain tensioners (secondary) to cylinder head as per the following, if removed. Refer to 

EM-

70, "Exploded View"

.

a.

Install timing chain tensioners (secondary) with a stopper pin attached and new O-rings.

b.

Install camshaft brackets (No. 1). Refer to 

EM-70, "Exploded View"

.

c.

Measure difference in levels between front end faces of cam-
shaft bracket (No. 1) and cylinder head.

• Measure two positions (both intake and exhaust side) for a

single bank.

• If the measured value is out of the standard, re-install cam-

shaft bracket (No. 1).

2.

Install rear timing chain case as per the following:

a.

Install new O-rings (1) onto cylinder block.

: Engine front

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Standard

: 

−

0.14 to 0.14 mm (

−

0.0055 to 0.0055 in)

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: Engine front

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EM-98

< UNIT DISASSEMBLY AND ASSEMBLY >

[VQ35HR]

REAR TIMING CHAIN CASE

b.

Apply liquid gasket with the tube presser (commercial service tool) to rear timing chain case back side as
shown in the figure.
Use Genuine RTV Silicone Sealant or an equivalent. Refer to 

GI-16, "Recommended Chemical

Products and Sealants"

.

CAUTION:

• For (A) in the figure, completely wipe out liquid gasket extended on a portion touching at engine

coolant.

• Apply liquid gasket on installation position of water pump and cylinder head very completely.

c.

Align rear timing chain case with dowel pins (bank 1 and bank 2) on cylinder block and install rear timing
chain case.
• Check O-rings stay in place during installation to cylinder block and cylinder head.

d.

Tighten mounting bolts in numerical order as shown in the fig-
ure.
• There are two types of mounting bolts. Refer to the following

for locating bolts.

C.

Protrusion

D.

Clearance 1 mm (0.04 in)

E.

Do not protrude in this area

F.

Run along bolt hole inner side

G.

Protrusions at beginning and end of 
gasket

h.

φ

3.9 mm (0.154 in)

i.

φ

2.7 mm (0.106 in)

Refer to 

GI-4, "Components"

 for symbols in the figure.

Bolt length:

Bolt position

20 mm (0.79 in)

: 1, 2, 3, 6, 7, 8, 9, 10

16 mm (0.63 in)

: 4, 5, 11, 12, 13

: 12.7 N·m (1.3 kg-m, 9 ft-lb)

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REAR TIMING CHAIN CASE

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e.

After all bolts are tightened, retighten them to the specified torque in numerical order shown in the figure.
• If liquid gasket protrudes, wipe it off immediately.

f.

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.

3.

Install water pump with new O-rings. Refer to 

CO-19, "Exploded View"

.

4.

Check that dowel pin (A) and crankshaft key (1) 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.

5.

Install timing chains (secondary) and camshaft sprockets as per the following:

CAUTION:

Matching marks between timing chain and sprockets slip easily. Confirm all matching mark posi-
tions repeatedly during the installation process.

a.

Push plunger of timing chain tensioner (secondary) and keep it
pressed in with a stopper pin (A).

6.

For the following operations, perform steps in the reverse order of removal.

Bolt length:

Bolt position

16 mm (0.63 in)

: Except the above

: 15.0 N·m (1.5 kg-m, 11 ft-lb)

1

: Rear timing chain case

2

: Lower cylinder block

Standard

Rear timing chain case to lower cylinder block:

–0.24 to 0.14 mm (–0.0094 to 0.0055 in)

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Camshaft dowel pin

: At cylinder head upper face side in each bank.

Crankshaft key

: At cylinder head side of bank 1.

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