2009 INFINITI QX56 torque

TM-216
< REMOVAL AND INSTALLATION >
TRANSMISSION ASSEMBLY
 When installing transmission to the engine, attach the bolts in theorder as shown.
CAUTION:
 When replacing an engine or transmission you must make
sure the dowels are installe d correctly during re-assembly.
 Improper alignment caused by missing dowels may cause
vibration, oil leaks or breakage of drivetrain components.
NOTE:
*: No.2 bolt also secures air breather vent.
 Align the positions of bolts for drive plate with those of the torque converter, and temporarily tight en the bolts. Then tighten the bolts
with the specified torque. Refer to TM-214, "Removal and Installa-
tion (2WD)".
CAUTION:
 When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
 After converter is installed to drive plate, rotate crankshaft several turns and check to be su re that transmission rotates
freely without binding.
 Install crankshaft position sensor (POS).
 After completing installation check fluid leakage, fluid level and the positions of A/T. Refer to TM-179, "Checking the A/T Fluid (ATF)"
, TM-195, "Checking of A/T Position" and
TM-195, "Adjustment of A/T Position"
.
Removal and Installation (4WD)INFOID:0000000005892372
COMPONENTS
Transmission to engine bolts : 113 N·m (12 kg-m,
83 ft-lb)
LCIA0371E
LCIA0335E
Revision: December 20092009 QX56

TM-218
< REMOVAL AND INSTALLATION >
TRANSMISSION ASSEMBLY
8. Remove crankshaft position sensor (POS) from A/T assembly.CAUTION:
 Do not subject it to impact by dropping or hitting it.
 Do not disassemble.
 Do not allow metal filings or fo reign material to get on the
sensor front edge magnetic area.
 Do not place in an area affected by magnetism.
9. Remove A/T fluid cooler tubes from A/T assembly.
10. Remove dust cover from converter housing.
11. Turn crankshaft, and remove the four bolts for drive plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
12. Support A/T assembly using transmission jack and Tool. CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug.
NOTE:
The actual special service tool may differ from tool shown.
13. Remove cross members using power tool.
14. Tilt the transmission slightly to keep the cl earance between body and transmission, then disconnect air
breather hose from A/T fluid indicator pipe. Refer to TM-197, "4WD : Removal and Installation"
.
15. Disconnect the following.  Neutral 4 low switch
 Wait detection switch
 Transfer motor connector
 A/T assembly connector
 Transfer control device connector
 ATP switch connector
 Transfer terminal cord assembly connector
16. Remove air breather hose assembly. Refer to TM-197, "4WD : Removal and Installation"
.
17. Remove A/T fluid indicator pipe.
18. Plug any openings such as the fluid charging pipe hole.
19. Remove A/T assembly to engine bolts using power tool.
20. Remove A/T assembly with transfer from vehicle. CAUTION:
 Secure torque converter to prevent it from dropping.
 Secure A/T assembly to transmission jack.
21. Remove transfer from A/T assembly. Refer to DLN-141,
"Removal and Installation".
LCIA0334E
LCIA0335E
Tool number : — (J-47002)
SCIA2203E
Revision: December 20092009 QX56

TRANSMISSION ASSEMBLYTM-219
< REMOVAL AND INSTALLATION >
CEF
G H
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J
K L
M A
B
TM
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O P
INSPECTION
Installation and Inspection of Torque Converter
 After inserting a torque converter to a transmission, be sure to check distance A to ensure it is within specifications.
INSTALLATION
Installation of the remaining components is in the revers e order of removal, while paying attention to the fol-
lowing:
 When installing transmission to the engine, attach the bolts as shown.
CAUTION:
 When replacing an engine or transmission you must make sure the dowels are installed correctly during re-assembly.
 Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drivetrain components.
NOTE:
*: No.2 bolt also secures air breather vent.
 Align the positions of bolts for dr ive plate with those of the torque
converter, and temporarily tighten the bolts. Then tighten the bolts
with the specified torque. Refer to TM-216, "Removal and Installa-
tion (4WD)".
CAUTION:
 When turning crankshaft, turn it clockwise as viewed from the
front of the engine.
 After converter is installed to drive plate, rotate crankshaft
several turns and check to be sure that transmission rotates
freely without binding.
 Install crankshaft position sensor (POS).
 After completing installation, check fluid leakage, fluid level, and the positions of A/T. Refer to TM-179, "Checking the A/T Fluid (ATF)"
, TM-195, "Checking of A/T Position"
and TM-195, "Adjustment of A/T Position".
Distance A : 24.0 mm (0.94 in) or more
SAT017B
Transmission to engine bolts : 113 N·m (12 kg-m,
83 ft-lb)
LCIA0371E
LCIA0335E
Revision: December 20092009 QX56

OVERHAULTM-221
< DISASSEMBLY AND ASSEMBLY >
CEF
G H
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J
K L
M A
B
TM
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O P
1. O-ring 2. Oil pump cover 3. O-ring
4. Oil pump housing 5. Self-sealing bolts 6. Torque converter
7. Converter housing 8. Oil pump housing oil seal 9. Bearing race
10. Needle bearing 11. O-ring 12. Front carrier assembly
13. Needle bearing 14. Snap ring 15. Front sun gear
16. 3rd one-way clutch 17. Snap ring 18. Bearing race
19. Needle bearing 20. Seal ring 21. Input clutch assembly
22. Needle bearing 23. Rear internal gear 24. Brake band
25. Mid carrier assembly 26. Needle bearing 27. Bearing race
28. Rear carrier assembly 29. Needle bearing 30. Mid sun gear
31. Seal ring 32. Rear sun gear 33. 1st one-way clutch
34. Snap ring 35. Needle bearing 36. High and low reverse clutch hub
37. Snap ring 38. Bearing race 39. Needle bearing
Revision: December 20092009 QX56

TM-232
< DISASSEMBLY AND ASSEMBLY >
DISASSEMBLY
DISASSEMBLY
DisassemblyINFOID:0000000004187489
CAUTION:
Do not disassemble parts behind Drum Support. Refer to TM-8, "Cross-Sectional View (2WD models)"
.
1. Drain A/T fluid through drain plug.
2. Remove torque converter by holding it firmly and turing while pulling straight out.
3. Check torque converter one-way clutch using a check tool as shown.
a. Insert a check tool into the groove of bearing support built into one-way clutch outer race.
b. While holding bearing support with a check tool, rotate one-way clutch spline using suitable tool.
c. Make sure that inner race rotates clockwise only. If not, replace torque converter assembly.
4. Remove bolts and converter housing from transmission case. CAUTION:
Do not scratch converter housing.
 Self-sealing bolt (A)
SCIA5010E
SCIA3171E
WCIA0662E
Revision: December 20092009 QX56

REPAIR FOR COMPONENT PARTSTM-251
< DISASSEMBLY AND ASSEMBLY >
CEF
G H
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J
K L
M A
B
TM
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O P
3. Install new oil pump housing oil seal to the oil pump housing until it is flush with the face of oil pump housing using Tool.
CAUTION:
 Do not reuse oil seal.
 Apply ATF to oil seal.
4. Install oil pump housing in oil pump cover. Tighten oil pump housing bolts to the specified torque. Refer to TM-220, "Compo-
nent".
Front Sun Gear, 3rd One-Way ClutchINFOID:0000000004187491
COMPONENTS
DISASSEMBLY
Tool number : ST33400001 (J-26082)
SCIA5313E
SCIA5228E
1. Front sun gear 2. 3rd one-way clutch 3. Snap ring
SCIA3114E
Revision: December 20092009 QX56

ASSEMBLYTM-273
< DISASSEMBLY AND ASSEMBLY >
CEF
G H
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K L
M A
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TM
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23. Install needle bearing to transmission case. CAUTION:
 Take care with the direction of needle bearing. Refer toTM-229, "Location of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings".
 Apply petroleum jelly to needle bearing.
24. Install output speed sensor to transmission case and tighten bolt to specified torque.
CAUTION:
 Do not subject sensor to impact by dropping or hitting it.
 Do not disassemble sensor.
 Do not allow metal filings or any foreign material to get on
the sensor's front edge magnetic area.
 Do not place sensor in an area affected by magnetism.
25. Install new rear oil seal until it is flush into the rear extension case (2WD models) using Tool or adapter case (4WD models)
using suitable tool.
CAUTION:
 Apply ATF to rear oil seal.
 Do not reuse rear oil seal.
26. Install return spring (1) to parking pawl (2).
SCIA5031E
Output speed sensor
bolt : 5.8 N·m (0.59 kg-m, 51 in-lb)
SCIA2320E
Tool number : ST33400001 (J-26082)
WCIA0475E
SCIA6180J
Revision: December 20092009 QX56

TM-276
< DISASSEMBLY AND ASSEMBLY >
ASSEMBLY
iii. Install brackets (1) and tighten rear extension assembly boltsand (2 self-sealing bolts) to specified torque.
CAUTION:
Do not reuse self-sealing bolt.
b. 4WD models
i. Install gasket onto transmission case. CAUTION:
 Completely remove all moistu re, oil, old gasket and any
foreign material from the transmission case and adapter
case assembly mating surfaces.
 Do not reuse gasket.
ii. Install adapter case assembly to transmission case. CAUTION:
Insert the tip of parking rod between the parking pawl and
the parking actuator support when assembling the rear
extension assembly.
iii. Install bracket (2) and tighten adapter case assembly bolts (1) and (3) to specified torque.
CAUTION:
Do not reuse self-sealing bolt (3).Rear extension
assembly bolt
: 52 N·m (5.3 kg-m, 38 ft-lb)
Self-sealing bolt : 61 N·m (6.2 kg-m, 45 ft-lb)
WCIA0562E
SCIA5231E
SCIA5186E
Adapter case
assembly bolt : 52 N·m (5.3 kg-m, 38 ft-lb)
Self-sealing bolt : 61 N·m (6.2 kg-m, 45 ft-lb)
SCIA7220E
Revision: December 20092009 QX56