2004 INFINITI QX56 oil specification

PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EES0010X
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 severity 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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WA RN ING:

To avoid rendering the SRS inoperative, 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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Rear SuspensionEES0010Y

When installing the rubber bushings, the final tightening must be done under unladen condition and with
the tires on level ground. Oil will shorten the life of the rubber bushings, so wipe off any spilled oil immedi-
ately.

Unladen condition means the fuel tank, engine coolant and lubricants are at the full specification. The
spare tire, jack, hand tools, and mats are in their designated positions.

After installing suspension components, check the wheel alignment.

Caulking nuts are not reusable. Always use new caulking nuts for installation. New caulking nuts are pre-
oiled, do not apply any additional lubrication.
Wiring Diagrams and Trouble DiagnosisEES0010Z
When you read wiring diagrams, refer to the following:

GI-15, "How to Read Wiring Diagrams".

PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When you perform trouble diagnosis, refer to the following:

GI-11, "How to Follow Trouble Diagnoses".

GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident".

RSU-40
REAR LOWER LINK & COIL SPRING
Revision: August 20072004 QX56
8. Remove the rear lower link adjusting bolt and nut from the rear
suspension member using power tool, then remove the rear
lower link.
INSPECTION AFTER REMOVAL
Check the coil spring and rubber seats for deformation, cracks, or other damage and replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.

Tighten the nuts and bolts to specification. Refer to RSU-25, "Components" .

When installing the upper and lower rubber seats for the rear
coil springs, the arrow embossed on the rubber seats must point
out toward the wheel and tire assembly.

After installing the rear lower link and coil spring, check the
wheel alignment and adjust if necessary. Refer to RSU-27,
"Wheel Alignment Inspection" .
LEIA0009E
LEIA0076E

RSU-48
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: August 20072004 QX56
Wheelarch Height (Unladen*1 )EES0011Z
Unit: mm (in)
*1: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Verify the vehicle height using Consult-II memory register 1103 and set rear wheelarch height to 0 ± 10 mm (0 ± 0.39 in) as neces-
sary.Suspension type
Air leveling*
2
Applied model4x2 4x4
Front wheelarch height (Hf)913
(35.94)931
(36.65)
Rear wheelarch height (Hr)912
(35.91)932
(36.69)
LEIA0085E

SC-28
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: August 20072004 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
BatteryEKS0079J
StarterEKS0079K
GeneratorEKS0079L
Typ eGr. 27
Capacity (20 HR) minimum 12V - 80AH
Cold cranking current A
(For reference value)710
ApplicationAll models
ManufacturerMitsubishi
M002T85571ZCKD
Ty peReduction gear type
System voltage 12V
No-loadTerminal voltage 11V
Current Less than 145A
Revolution More than 3,300 rpm
Minimum diameter of commutator 31.4 mm (1.236 in)
Minimum length of brush 11.0 mm (0.433 in)
Brush spring tension 26.7 - 36.1 N (2.72 - 3.68 kg, 5.93 - 8.02 lb)
Clearance between pinion front edge and
pinion stopper0.5 - 2.0 mm (0.020 - 0.079 in)
Ty peLR1130-701
Hitachi
Nominal rating12V - 130A
Ground polarityNegative
Minimum revolution under no-load (When 13.5 volts is applied) 1,200 rpm
Hot output current (When 13.5 volts is applied)More than 78A/1,800 rpm
More than 108A/2,500 rpm
More than 130A/5,000 rpm
Regulated output voltage 14.1 - 14.7V @ 25°C
Minimum length of brush 6 mm (0.24 in)
Brush spring pressure 1.0 - 3.432 N (0.102 - 0.3501 kg, 0.22 - 0.7715 lbs)
Slip ring minimum outer diameter 26 mm (1.02 in)
Rotor (Field coil) resistance 2.1 ohms

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Revision: August 20072004 QX56 FRONT CASE ......................................................... 131
Inspection ............................................................. 131
PLANETARY CARRIER .................................... 131
SUN GEAR ....................................................... 131
INTERNAL GEAR ............................................. 131
SHIFT ROD COMPONENTS ............................ 131
CENTER CASE ...................................................... 133
Inspection ............................................................. 133
BEARINGS ........................................................ 133
SUB-OIL PUMP ................................................ 133
MAIN OIL PUMP ............................................... 133
MAINSHAFT ..................................................... 133
CONTROL VALVE ............................................ 134
CLUTCH ............................................................ 134
FRONT CASE ......................................................... 136
Assembly .............................................................. 136
PLANETARY CARRIER, SUN GEAR AND
INTERNAL GEAR ............................................. 136
SHIFT ROD ASSEMBLY ................................... 139CENTER CASE .......................................................140
Assembly ..............................................................140
OIL FILTER ........................................................140
SUB OIL PUMP .................................................140
MAIN OIL PUMP ...............................................141
CONTROL VALVE .............................................142
CLUTCH PISTON ..............................................144
MAINSHAFT AND CLUTCH DRUM ..................145
FRONT DRIVE SHAFT AND DRIVE CHAIN .....148
ASSEMBLY .............................................................149
Final Assembly .....................................................149
SERVICE DATA AND SPECIFICATIONS (SDS) ....153
General Specifications ..........................................153
Inspection and Adjustment ...................................153
CLEARANCE BETWEEN INNER GEAR AND
OUTER GEAR ...................................................153
CLUTCH ............................................................153
PINION GEAR END PLAY ................................153
CLEARANCE BETWEEN SHIFT FORK AND
SLEEVE ............................................................153
SELECTIVE PARTS ..........................................153

FRONT CASE
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FRONT CASEPFP:33107
InspectionEDS00191
PLANETARY CARRIER

Measure end play of each pinion gear, and make sure the mea-
surement is within specification shown below. If out of specifica-
tion, replace planetary carrier assembly with new one.

Check working face of each gear, bearing and others for dam-
age, burrs, partial wear, dents and other abnormality. If any is
found, replace planetary carrier assembly with new one.
SUN GEAR

Check if oil passage of sun gear assembly is clogged. For this,
try to pass a 3.6 mm (0.142 in) dia. wire through oil passage as
shown.

Check sliding/contact surface of each gear, bearing and others
for damage, burrs, partial wear, dents, and other abnormality. If
any is found, replace sun gear assembly with new one.
INTERNAL GEAR

Check internal gear teeth for damage, partial wear, dents and
other abnormality. If any is found, replace internal gear with new
one.
SHIFT ROD COMPONENTS

Check working face of shift rod and fork for wear, partial wear,
bending and other abnormality. If any is found, replace with new
one.Pinion gear end play : 0.1 - 0.7 mm (0.004 - 0.028 in)
PDIA0185E
PDIA0186E
SMT008D
SMT009D

CENTER CASE
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Revision: August 20072004 QX56
CENTER CASEPFP:33105
InspectionEDS00192
BEARINGS
1. Make sure bearings roll freely and are free from noise, pitting
and cracks.
SUB-OIL PUMP
1. Check inner and outer circumference, tooth face, and side-face
of inner and outer gears for damage or abnormal wear.
2. Measure side clearance between sub oil pump housing edge
and inner gear/outer gear.
3. Make sure side clearance is within specification. If the measure-
ment is out of specification, replace inner and outer gears
together with new ones as a set.
MAIN OIL PUMP
1. Check inner and outer circumference, tooth face, and side-face
of inner and outer gears for damage or abnormal wear.
2. Measure side clearance between main oil pump housing edge
and inner gear/outer gear.
3. Make sure side clearance is within specification. If the measure-
ment is out of specification, replace inner and outer gears with
new ones as a set.
MAINSHAFT

Check surfaces which contact sun gear, clutch drum, clutch hub,
press flange, clutch piston, each bearing, etc. for damage, peel,
partial wear, dents, bending, or other abnormal damage. If any is
found, replace with new one.
SDIA2175E
Specification : 0.015 - 0.035 mm (0.0006 - 0.0014 in)
SDIA2173E
Specification : 0.015 - 0.035 mm (0.0006 - 0.0014 in)
SDIA2174E
SMT944C

TF-140
CENTER CASE
Revision: August 20072004 QX56
CENTER CASEPFP:33105
AssemblyEDS00194
OIL FILTER
1. Apply ATF to the two new O-rings (1), and install them on the oil
filter (2).
NOTE:
Do not reuse O-rings.
2. Apply ATF or petroleum jelly to the new O-ring, and install them
on filter stud.
NOTE:
Do not reuse O-rings.
3. Install filter stud to oil filter.
4. Install oil filter to center case and tighten bolts to specifications.
CAUTION:
Do not knock oil filter with a tool such as a hammer.
SUB OIL PUMP
1. Install outer gear and inner gear in to sub oil pump housing, and
measure side clearance. Refer to TF-133, "
SUB-OIL PUMP" .
2. Align dowel pin hole and mounting bolt hole of sub oil pump
assembly with center case. Install sub oil pump cover then
tighten bolts.
WDIA0285E
PDIA0184E
Oil filter bolts : 7.9 N·m (0.81 kg-m, 70 in-lb)
SDIA2135E
Sub oil pump bolts : 7.9 N·m (0.81 kg-m, 70 in-lb)
SDIA2328E