Infiniti QX56 (Z62). Manual - part 505

 

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Infiniti QX56 (Z62). Manual - part 505

 

 

DLN-220

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

DRIVE PINION

10. Apply anti-corrosion oil to the thread and seat of drive pinion

lock nut, and temporarily tighten drive pinion lock nut to drive
pinion, using flange wrench (commercial service tool).

CAUTION:

Never reuse drive pinion lock nut.

11. Adjust to the drive pinion lock nut tightening torque and pinion

bearing preload torque, using preload gauge [SST: ST3127S000
(J-25765-A)].

CAUTION:

• Adjust to the lower limit of the drive pinion lock nut tight-

ening torque first.

• If the preload torque exceeds the specified value, replace

collapsible spacer and tighten it again to adjust. Never
loosen drive pinion lock nut to adjust the preload torque.

• After adjustment, rotate drive pinion back and forth 2 to 3

times to check for unusual noise, rotation malfunction,
and other malfunctions.

12. Install differential case assembly. Refer to 

DLN-206, "Assem-

bly"

.

CAUTION:

Never install rear cover at this timing.

13. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash, and companion

flange runout. Refer to 

DLN-210, "Adjustment"

 and 

DLN-220, "Adjustment"

.

Recheck above items. Readjust the above description, if necessary.

14. Check total preload torque. Refer to 

DLN-210, "Adjustment"

.

15. Install rear cover. Refer to 

DLN-206, "Assembly"

.

Adjustment

INFOID:0000000006222428

COMPANION FLANGE RUNOUT

1.

Fit a test indicator to the inner side of the companion flange
(socket diameter).

2.

Rotate companion flange to check for runout.

3.

If the runout value is outside the runout limit, follow the proce-
dure below to adjust.

a.

Check for runout while changing the phase between companion
flange and drive pinion by 90

°

 step, and search for the position

where the runout is the minimum.

b.

If the runout value is still outside of the limit after the phase has been changed, possible cause will be an
assembly malfunction of drive pinion and pinion bearing and malfunction of pinion bearing. Check for
these items and repair if necessary.

c.

If the runout value is still outside of the limit after the check and repair, replace companion flange.

Inspection

INFOID:0000000006222429

INSPECTION AFTER DISASSEMBLY

Drive Gear and Drive Pinion

• Clean up the disassembled parts.
• If the gear teeth never mesh or line-up correctly, determine the cause and adjust or replace as necessary.

Pinion bearing preload

: Refer to 

DLN-222, "Pre-

load Torque"

.

JSDIA0047ZZ

Inner side of companion 
flange runout

: Refer to 

DLN-222, "Com-

panion Flange Runout"

.

JPDID0399ZZ

DRIVE PINION

DLN-221

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

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• If the gears are worn, cracked, damaged, pitted or chipped (by friction) noticeably, replace with new drive

gear and drive pinion as a set.

Bearing

• Clean up the disassembled parts.
• If any chipped (by friction), pitted, worn, rusted or scratched marks, or unusual noise from the bearing is

observed, replace as a bearing assembly (as a new set).

Oil Seal

• Whenever disassembled, replace.
• If wear, deterioration of adherence (sealing force lips), or damage is detected on the lips, replace them.

Companion Flange

• Clean up the disassembled parts.
• If any chipped mark [about 0.1 mm, (0.004 in)] or other damage on the contact sides of the lips of the com-

panion flange is found, replace.

DLN-222

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[REAR FINAL DRIVE: R230]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specification

INFOID:0000000006222430

Drive Gear Runout

INFOID:0000000006222431

Unit: mm (in)

Side Gear Clearance

INFOID:0000000006222432

Unit: mm (in)

Preload Torque

INFOID:0000000006222433

Backlash

INFOID:0000000006222434

Unit: mm (in)

Companion Flange Runout

INFOID:0000000006222435

Unit: mm (in)

Applied model

2WD

4WD

VK56VD

A/T

Final drive model

R230

Gear ratio

2.937

Number of teeth (Drive gear/Drive pinion)

47/16

Oil capacity (Approx.)

 (US pt, lmp pt)

1.75 (3-3/4, 3-1/8)

Number of pinion gears

2

Drive pinion adjustment spacer type

Collapsible

Item

Runout limit

Drive gear back face

0.05 (0.0020) or less

Item

Specification

Side gear back clearance
(Clearance limit between side gear and differential case for adjusting 
side gear backlash)

0.20 (0.0079) or less

(Each gear should rotate smoothly without excessive resis-

tance during differential motion.)

Item

Specification

Drive pinion bearing preload torque

1.76 

 2.65 N·m (0.18 

 0.27 kg

m, 16 

 23 in-lb)

Side bearing preload torque (reference value determined by drive 
gear bolt pulling force)

0.29 

 1.47 N·m (0.03 

 0.14 kg

m, 3 

 13 in-lb)

Total preload torque
(Total preload torque = drive pinion bearing preload torque + Side 
bearing preload torque)

2.06 

 4.12 N·m (0.21 

 0.42 kg

m, 19 

 36 in-lb)

Item

Specification

Drive gear to drive pinion gear

0.13 

 0.18 (0.0051 

 0.0070)

Item

Runout limit

Inner side of the companion flange

 0.08 (0.0031) or less

EC-1

ENGINE

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SECTION 

EC

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CONTENTS

ENGINE CONTROL SYSTEM

VK56VD

PRECAUTION ...............................................

9

PRECAUTIONS ...................................................

9

Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
..

9

Precaution for Procedure without Cowl Top Cover 

......

9

Precautions For Xenon Headlamp Service  ...............

9

On Board Diagnostic (OBD) System of Engine 
and A/T ....................................................................

10

General Precautions  ...............................................

10

PREPARATION ...........................................

14

PREPARATION ..................................................

14

Special Service Tools ..............................................

14

Commercial Service Tools  ......................................

14

SYSTEM DESCRIPTION  .............................

16

COMPONENT PARTS  .......................................

16

Component Parts Location ......................................

16

Component Description ...........................................

19

Accelerator Pedal Position Sensor ..........................

21

Air Fuel Ratio (A/F) Sensor 1  ..................................

21

ASCD Brake Switch & Stop Lamp Switch ...............

21

ASCD Steering Switch  ............................................

21

ASCD Indicators ......................................................

21

Battery Current Sensor (With Battery Tempera-
ture Sensor)  ............................................................

22

Camshaft Position Sensor .......................................

22

Crankshaft Position Sensor .....................................

23

ECM ........................................................................

23

Electric Throttle Control Actuator  ............................

23

Electrically-controlled cooling fan coupling  .............

24

Engine Coolant Temperature Sensor ......................

25

Engine Oil Temperature Sensor ..............................

25

EVAP Control System Pressure Sensor  .................

26

EVAP Canister Vent Control Valve  .........................

26

EVAP Canister Purge Volume Control Solenoid 
Valve ........................................................................

26

Fuel Injector .............................................................

26

Fuel Level Sensor ....................................................

26

Fuel Pump Control Module ......................................

27

Fuel Rail Pressure Sensor .......................................

27

Fuel Tank Temperature Sensor ...............................

27

Heated Oxygen Sensor 2  ........................................

27

High Pressure Fuel Pump  .......................................

28

ICC Brake Switch & Stop Lamp Switch  ...................

29

ICC Steering Switch  ................................................

29

Ignition Coil With Power Transistor  .........................

29

Intake Valve Timing Control Solenoid Valve  ...........

29

Knock Sensor  ..........................................................

30

Low Fuel Pressure Sensor  ......................................

30

Low Pressure Fuel Pump  ........................................

30

Malfunction Indicator Lamp (MIL)  ............................

30

Manifold Absolute Pressure Sensor  ........................

31

Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor) .............................................................

31

Power Steering Pressure (PSP) Sensor ..................

31

Refrigerant Pressure Sensor  ...................................

32

VVEL Actuator Motor ...............................................

32

VVEL Actuator Motor Relay .....................................

32

VVEL Control Module  ..............................................

32

VVEL Control Shaft Position Sensor  .......................

32

STRUCTURE AND OPERATION  .....................

33

Positive Crankcase Ventilation  ................................

33

On Board Refueling Vapor Recovery (ORVR)  ........

34

SYSTEM ............................................................

35

ENGINE CONTROL SYSTEM  ...................................

35

ENGINE CONTROL SYSTEM : System Diagram ....

35

ENGINE CONTROL SYSTEM : System Descrip-
tion ...........................................................................

35

DIRECT INJECTION GASOLINE SYSTEM  ..............

36

DIRECT INJECTION GASOLINE SYSTEM : 
System Diagram .....................................................

36

 

 

 

 

 

 

 

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