Infiniti FX35, FX50 (S51). Manual - part 942

 

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Infiniti FX35, FX50 (S51). Manual - part 942

 

 

EM-68

< REMOVAL AND INSTALLATION >

[VQ35HR]

TIMING CHAIN

13. Install rocker covers (bank 1 and bank 2). Refer to 

EM-50, "Exploded View"

.

14. Install crankshaft pulley as per the following:
a.

Fix crankshaft using the ring gear stopper [SST: KV10118600 (J-48641)].

b.

Install crankshaft pulley, taking care not to damage front oil seal.
• When press-fitting crankshaft pulley with plastic hammer, tap on its center portion (not circumference).

c.

Tighten crankshaft pulley bolt.

d.

Place a matching mark (A) on crankshaft pulley (2) aligning with
the matching mark (C) of crankshaft pulley bolt (1). Tighten the
bolt 90 degrees (one marks) (b).

e.

Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns
smoothly.

15. Install drive belt auto-tensioner bracket (1) and power steering

oil pump bracket (2) as per the following:

a.

Install drive belt auto-tensioner bracket, and tighten mounting
bolts No. 2, 3. (temporarily)

b.

Tighten mounting bolts No. 2, 3. (specified torque)

c.

Install power steering oil pump bracket, and tighten mounting
bolts No. 1, 4, 5. (temporarily)

d.

Tighten mounting bolts No. 1. (specified torque)

e.

Tighten mounting bolts No. 4, 5. (specified torque)

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

Inspection

INFOID:0000000005245148

INSPECTION AFTER REMOVAL

Timing Chain

: 44.1 N·m (4.5 kg-m, 33 ft-lb)

JPBIA0120ZZ

3

: Crankshaft pulley

A

: Engine front side

B

: Engine right side

: Engine front

JPBIA1786ZZ

TIMING CHAIN

EM-69

< REMOVAL AND INSTALLATION >

[VQ35HR]

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Check for cracks and any excessive wear at link plates and roller
links of timing chain. Replace timing chain if necessary.

INSPECTION AFTER INSTALLATION

Inspection for Leakage

The following are procedures for checking fluids leakage, lubricates leakage.

• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required

quantity, fill to the specified level. Refer to 

MA-12, "Fluids and Lubricants"

.

• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-

age at connection points.

- Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.

NOTE:
If hydraulic pressure inside chain tensioner drops after removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness. Noise
will stop after hydraulic pressure rises.

• Warm up engine thoroughly to check there is no leakage of fuel, or any oil/fluids including engine oil and

engine coolant.

• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the

specified level, if necessary.

Summary of the inspection items:

* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.

A

:  Crack

B

:  Wear

JPBIA0091ZZ

Items

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Other oils and fluid*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

EM-70

< REMOVAL AND INSTALLATION >

[VQ35HR]

CAMSHAFT

CAMSHAFT

Exploded View

INFOID:0000000005245149

Removal and Installation

INFOID:0000000005245150

REMOVAL

1.

Remove front timing chain case, camshaft sprocket and timing chain. Refer to 

EM-53, "Exploded View"

.

2.

Remove fuel sub tube. Refer to 

EM-40, "Exploded View"

.

1.

Camshaft bracket (No. 3, 4) 

2.

Camshaft bracket (No. 2)

3.

Seal washer

4.

Camshaft bracket (No. 1) (bank 1)

5.

Dowel pin

6.

Camshaft (EXH) (bank 1)

7.

Camshaft signal plate (EXH)

8.

Camshaft sensor bracket (bank 1)

9.

Dowel pin

10. Camshaft signal plate (INT)

11.

Camshaft (INT) (bank 1) 

12. Valve lifter

13.

Timing chain tensioner (secondary) 
(bank 1)

14.

Cylinder head (bank 1)

15.

Timing chain tensioner (secondary) 
(bank 2)

16. Cylinder head (bank 2)

17.

Camshaft sensor bracket (bank 2)

18. Camshaft (EXH) (bank 2)

19. Camshaft signal plate (EXH)

20.

Camshaft signal plate (INT)

21. Camshaft (INT) (bank 2)

22. Camshaft bracket (No. 1) (bank 2)

A.

Refer to 

EM-70

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA1901GB

CAMSHAFT

EM-71

< REMOVAL AND INSTALLATION >

[VQ35HR]

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3.

Remove camshaft sensor bracket.
• Loosen camshaft sensor bracket bolts in reverse order as

shown in the figure.

NOTE:
The order of loosening bolts is the same for bank 1 and bank 2.

4.

Remove camshaft brackets.
• Mark camshafts, camshaft brackets and bolts so they are placed in the same position and direction for

installation.

• Equally loosen camshaft bracket bolts in several steps in

reverse order as shown in the figure.

5.

Remove camshaft.

6.

Remove valve lifter.
• Identify installation positions, and store them without mixing them up.

7.

Remove timing chain tensioners (secondary) (1) from cylinder
head.

• Remove timing chain tensioners (secondary) with its stopper

pin (C) attached.

NOTE:
Stopper pin should be attached when timing chain (secondary)
is removed.

INSTALLATION

1.

Install timing chain tensioners (secondary) on both sides of cylinder head.

: Engine front

JPBIA1960ZZ

: Engine front

JPBIA0257ZZ

A

:  Bank  1

B

:  Bank  2

JPBIA0121ZZ

 

 

 

 

 

 

 

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