Infiniti G35 (V35). Manual - part 486

TIMING CHAIN

EM-99

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d.

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

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

smoothly.

20. Install in the reverse order of removal after this step.

INSPECTION AFTER INSTALLATION
Inspection for Leaks

The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

●

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-10, "RECOMMENDED 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
leakage 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 timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.

●

Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, 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.

PBIC4627J

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

Exhaust gases

—

Leakage

—

EM-100

CAMSHAFT

CAMSHAFT

PFP:13001

Components

NBS002UR

1.

Intake valve timing control solenoid 
valve

2.

Gasket

3.

Seal washer

4.

Dowel pin

5.

Camshaft (INT)

6.

Valve lifter

7.

Plunger

8.

Spring

9.

Timing chain tensioner (Secondary)

10. O-ring

11.

Cylinder head (left bank)

12. O-ring

13.

Camshaft position sensor (PHASE) 
(left bank)

14. Camshaft (EXH)

15. Camshaft bracket (No. 1)

16. Camshaft bracket (No. 2 to 4)

17.

Intake valve timing control solenoid 
valve

18. Gasket

19. Camshaft bracket (No. 1)

20. Timing chain tensioner (Secondary)

21. Spring

22. Plunger

23. Cylinder head (right bank)

24.

Camshaft position sensor (PHASE) 
(right bank)

KBIA4393J

CAMSHAFT

EM-101

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Refer to 

GI-10, "Components"

  for symbol marks in the figure.

Removal and Installation

NBS002US

REMOVAL

1.

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

EM-

59, "TIMING CHAIN"

 .

2.

Remove camshaft position sensor (PHASE) (right and left
banks) and exhaust valve timing control position sensor (right
and left banks) (M/T models) from cylinder head back side.

CAUTION:

●

Handle carefully to avoid dropping and shocks.

●

Do not disassemble.

●

Do not allow metal powder to adhere to magnetic part at
sensor tip.

●

Do not place sensors in a location where they are
exposed to magnetism.

3.

Remove intake valve timing control solenoid valves.

●

Discard intake valve timing control solenoid valve gaskets and
use new gaskets for installation.

4.

Remove intake and exhaust camshaft brackets.

●

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

25. Camshaft (INT)

26. Camshaft (EXH)

27. Camshaft bracket (No. 2 to 4)

28.

Exhaust valve timing control position 
sensor (right bank)

29.

Exhaust valve timing control position 
sensor (left bank)

A.

Refer to 

EM-105

B.

M/T models

KBIA1046E

SEM443GA

EM-102

CAMSHAFT

●

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 tensioner (secondary) from cylinder head.

●

Remove timing chain tensioner (secondary) with its stopper
pin attached.

NOTE:
Stopper pin was attached when timing chain (secondary) was
removed.

INSPECTION AFTER REMOVAL
Camshaft Runout

1.

Put V-block on precise flat table, and support No. 2 and 4 jour-
nals of camshaft.

CAUTION:

Do not support journal No. 1 (on the side of camshaft
sprocket) because it has a different diameter from the other
three locations.

2.

Set dial indicator vertically to No. 3 journal.

3.

Turn camshaft to one direction with hands, and measure the
camshaft runout on a dial indicator. (Total indicator reading)

4.

If it exceeds the limit, replace camshaft.

PBIC2050E

PBIC2111E

Standard

: Less than 0.02 mm (0.0008 in)

Limit

: 0.05 mm (0.0020 in)

PBIC0929E