engine oil INFINITI QX4 2005 Factory Service Manual

TF-140
TRANSFER MOTOR
Revision: October 20052005 QX56
TRANSFER MOTORPFP:00000
Removal and InstallationEDS002IY
REMOVAL
1. Disconnect the transfer motor connector.
2. Remove the air breather hose from the transfer motor. Refer to
TF-139, "
Removal and Installation" .
3. Remove the transfer motor bolts.
4. Remove the transfer motor.
INSTALLATION
1. Apply ATF to the O-ring and install it to the transfer motor.
CAUTION:
Do not reuse O-rings.
2. Fit the double-flat end of the transfer motor shaft into the slot of
the sub-oil pump assembly. Then tighten to the specified torque.
Refer to TF-144, "
COMPONENTS" .
CAUTION:
Be sure to install connector bracket.
3. Install the air breather hose to the transfer motor. Refer to TF-
139, "Removal and Installation" .
4. Connect the transfer motor connector.
5. Check the transfer fluid. Refer to MA-25, "
FLUID LEAKAGE AND FLUID LEVEL" .
6. Start the engine for one minute. Then stop the engine and recheck the transfer fluid. Refer to MA-25,
"FLUID LEAKAGE AND FLUID LEVEL" .
SDIA2133E
SDIA2787E

TF-142
TRANSFER OIL FILTER
Revision: October 20052005 QX56
3. Apply ATF to the two O-rings (1), and install them on the oil filter
(2).
CAUTION:
Do not reuse O-rings.
4. Install the oil filter to the transfer assembly. Tighten the bolts to
the specified torque. Refer to TF-144, "
COMPONENTS" .
CAUTION:

Do not damage oil filter.

Attach oil filter and tighten bolts evenly.
5. Check the transfer fluid. Refer to MA-25, "
FLUID LEAKAGE
AND FLUID LEVEL" .
6. Start the engine for one minute. Then stop the engine and
recheck the transfer fluid. Refer to MA-25, "
FLUID LEAKAGE
AND FLUID LEVEL" .
WDIA0285E
SDIA2136E

TRANSFER ASSEMBLY
TF-143
C
E
F
G
H
I
J
K
L
MA
B
TF
Revision: October 20052005 QX56
TRANSFER ASSEMBLYPFP:33100
Removal and InstallationEDS0 02 H1
REMOVAL
1. Remove the drain plug and gasket. Drain the fluid. Refer to MA-24, "DRAINING" .
2. Remove the A/T undercover, using power tool.
3. Remove the center exhaust tube and main muffler. Refer to EX-3, "
Removal and Installation" .
4. Remove the front and rear propeller shafts. Refer to PR-4, "
Removal and Installation" (front), PR-8,
"Removal and Installation" (rear).
CAUTION:
Do not damage spline, sleeve yoke and rear oil seal when removing rear propeller shaft.
NOTE:
Insert a plug into the rear oil seal after removing the rear propeller shaft.
5. Remove the A/T nuts from the A/T crossmember.
6. Position two suitable jacks under the A/T and transfer assembly.
7. Remove the crossmember. Refer to AT-247, "
COMPONENTS" .
WAR NIN G:
Support A/T and transfer assembly using two suitable jacks while removing crossmember.
8. Disconnect the electrical connectors from the following:

ATP switch

Neutral 4LO switch

Wait detection switch

Transfer motor

Transfer control device
9. Disconnect the air breather hoses from the following:

Transfer control device

Transfer rear case

Transfer motor
10. Remove the transfer control device from the extension housing.
11. Remove the transfer to A/T and A/T to transfer bolts.
WAR NIN G:
Support transfer assembly with suitable jack while removing it.
12. Remove the transfer assembly.
INSTALLATION
Installation is in the reverse order of removal, paying attention to the following:

Tighten the bolts to specification.

Fill the transfer with new fluid. Refer to MA-25, "FILLING" .

Check the transfer fluid. Refer to MA-25, "FLUID LEAKAGE
AND FLUID LEVEL" .

Start the engine for one minute. Then stop the engine and
recheck the transfer fluid. Refer to MA-25, "
FLUID LEAKAGE
AND FLUID LEVEL" . Bolt length : 45 mm (1.77 in)
Transfer bolt torque : 36 N·m (3.7 kg-m, 26 ft-lb)SMT872C