INFINITI QX56 2008 Factory Service Manual

PREPARATIONDLN-181
< PREPARATION > [PROPELLER SHAFT: 2F1310]
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PREPARATION
PREPARATION
Commercial Service ToolINFOID:0000000001604425
Tool name Description
Power tool Loosening bolts and nuts
PBIC0190E
Revision: March 2010 2008 QX56

DLN-182
< SYMPTOM DIAGNOSIS >[PROPELLER SHAFT: 2F1310]
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001604426
Use the chart below to help you find the cause of the sy mptom. If necessary, repair or replace these parts.
×: ApplicableReference page
DLN-183, "
On-Vehicle Service
"
DLN-183, "
On-Vehicle Service
"
DLN-183, "
On-Vehicle Service
"
DLN-240, "
NVH Troubleshooting Chart
"
RAX-5, "
NVH Troubleshooting Chart
"
RSU-5, "
NVH Troubleshooting Chart
"
WT-41, "
NVH Troubleshooting Chart
"
WT-41, "
NVH Troubleshooting Chart
"
RAX-10, "
Removal and Installation
"
BR-6, "
NVH Troubleshooting Chart
"
ST-12, "
NVH Troubleshooting Chart
"
Possible cause and suspected parts
Uneven rotation torque
Rotation imbalance
Excessive run out
Differential
Axle
Suspension
Tires
Road wheel
Drive shaft
Brakes
Steering
Symptom Noise
×××××××××××
Shake ×××××××
Vibration ××××××××
Revision: March 2010 2008 QX56

PROPELLER SHAFTDLN-183
< ON-VEHICLE REPAIR > [PROPELLER SHAFT: 2F1310]
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ON-VEHICLE REPAIR
PROPELLER SHAFT
On-Vehicle ServiceINFOID:0000000001604427
APPEARANCE AND NOISE INSPECTION
• Check the propeller shaft tube surface for dents or crac ks. If damaged, replace the propeller shaft assembly.
• Check the bearings for noise and damage. Repair or replace the bearings as necessary.
PROPELLER SHAFT VIBRATION
If a vibration is present at high speed, inspect the propeller shaft runout first.
1. Measure the runout of the propeller shaft tube at several points by rotating the final drive companion
flange with your hands.
2. If the runout exceeds specif ications, disconnect the propeller
shaft at the final drive companion flange; then rotate the com-
panion flange 90 °, 180 ° and 270 ° and reconnect the propeller
shaft.
3. Check the runout again. If the r unout still exceeds specifications,
replace the propeller shaft assembly.
4. After installation, check for vibration by driving the vehicle. Limit
Propeller shaft run out : Refer to
DLN-188, "
Gen-
eral Specification"
LDIA0160E
Revision: March 2010 2008 QX56

DLN-184
< REMOVAL AND INSTALLATION >[PROPELLER SHAFT: 2F1310]
PROPELLER SHAFT
REMOVAL AND INSTALLATION
PROPELLER SHAFT
Removal and InstallationINFOID:0000000001604428
Model 2F1310
REMOVAL
1. Put matching marks on the front propeller shaft flange yoke and
the front final drive companion flange as shown.
CAUTION:
For matching marks, use paint. Never damage the flange
yoke and companion flange of the front final drive.
2. Put matching marks on the front propeller shaft flange yoke and the transfer companion flange.
CAUTION:
For matching marks, use paint. Never damage the flange
yoke and companion flange of the front final drive.
3. Remove the bolts and then remove the front propeller shaft from the front final drive and transfer.
INSPECTION
1. Propeller shaft tube 2. Snap ring 3. Journal bearing
4. Journal 5. Flange yoke ⇐:Front
WDIA0304E
SDIA2046E
Revision: March 2010 2008 QX56

PROPELLER SHAFTDLN-185
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• Inspect the propeller shaft runout. If runout exceeds the limit, replace the propeller shaft assembly.
• While holding the flange yoke on one side, check axial play of the joint as shown. If the journal axial play
exceeds the specification, repair or replace the journal parts.
• Check the propeller shaft tube surf ace for dents or cracks. If dam-
age is detected, replace the propeller shaft assembly.
INSTALLATION
Installation is in the reverse order of removal.
• After installation, check for vibration by driving the vehicle. Refer to DLN-182, "
NVH Troubleshooting Chart".
CAUTION:
Do not reuse the bolts and nuts. Always install new ones.
Limit
Propeller shaft run out : Refer to
DLN-188, "
Gen-
eral Specification"
LDIA0118E
Standard
Journal axial play : Refer to DLN-188, "
Gen-
eral Specification"
LDIA0117E
Revision: March 2010 2008 QX56

DLN-186
< DISASSEMBLY AND ASSEMBLY >[PROPELLER SHAFT: 2F1310]
PROPELLER SHAFT
DISASSEMBLY AND ASSEMBLY
PROPELLER SHAFT
Disassembly and AssemblyINFOID:0000000001604429
DISASSEMBLY
Journal
1. Put matching marks on the front propeller shaft and flange yoke
as shown.
CAUTION:
For matching marks, use paint. Never damage the front pro-
peller shaft or flange yoke.
2. Remove the snap rings.
3. Push out and remove the journal bearings by lightly tapping the flange yoke with a hammer, taking care not to damage the jour-
nal or flange yoke hole.
NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
4. Push out and remove the remaining journal bearings at the opposite side by lightly tapping the flange yoke with a hammer,
taking care not to damage the journal or flange yoke hole.
NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
ASSEMBLY
SPD128
APD011
SPD732
SPD131
Revision: March 2010 2008 QX56

PROPELLER SHAFTDLN-187
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Journal
1. Assemble the journal bearings. Apply multipurpose grease on
the bearing inner surface.
NOTE:
During assembly, use caution so that the needle bearings do not
fall down.
2. Select new snap rings that will provide the specified play in an axial direction of the journal, and install them. Refer to DLN-188,
"Snap Ring".
CAUTION:
Do not reuse snap rings
NOTE:
Select snap rings with a difference in thickness at both sides
within 0.02 mm (0.0008 in).
3. Adjust the thrust clearance between the bearing and snap ring to zero by tapping the yoke.
4. Make sure that the journal moves smoothly and is below the propeller shaft joint flex effort specification.
WPD019
APD012
SPD732
Standard
Propeller shaft joint flex
effort: Refer to
DLN-188, "
Gen-
eral Specification"
LDIA0119E
Revision: March 2010 2008 QX56

DLN-188
< SERVICE DATA AND SPECIFICATIONS (SDS) [PROPELLER SHAFT: 2F1310]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000001604430
Unit: mm (in)
Propeller Shaft Runout
Unit: mm (in)
Propeller Shaft Joint Flex Effort
Unit: N·m (kg-m, in-lb)
Journal Axial Play
Unit: mm (in)
Snap RingINFOID:0000000001604431
Model 2F1310
Unit: mm (in)
*Always check with the Parts Department for the latest parts information.Applied model
4WD
VK56DE A/T
Propeller shaft model 2F1310
Number of joints 2
Coupling method with front final drive Flange type
Coupling method with transfer Flange type
Shaft length (Spider to spider) 696 (27.40)
Shaft outer diameter 63.5 (2.5)
ItemLimit
Propeller shaft runout 0.6 (0.024)
ItemLimit
Propeller shaft joint flex effort 1.96 (0.20, 17) or less
ItemLimit
Journal axial play 0.02 (0.0008)
ThicknessColorPart Number*
1.99 (0.0783) White37146-C9400
2.02 (0.0795) Yellow37147-C9400
2.05 (0.0807) Red37148-C9400
2.08 (0.0819) Green37149-C9400
2.11 (0.0831) Blue37150-C9400
2.14 (0.0843) Light brown 37151-C9400
2.17 (0.0854) Black37152-C9400
2.20 (0.0866) No paint37153-C9400
Revision: March 2010 2008 QX56

PRECAUTIONSDLN-189
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004884146
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000004884145
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: March 2010 2008 QX56

DLN-190
< PRECAUTION >[PROPELLER SHAFT: 2S1410]
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Revision: March 2010 2008 QX56