service INFINITI FX35 2008 Service Manual

TRANSMISSION ASSEMBLYAT-245
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REMOVAL
CAUTION:
 When removing the A/T assembly from engine, fi rst remove the crankshaft position sensor (POS)
from the A/T assembly.
 Be careful not to damage sensor edge.
1. Disconnect the battery cabl e from the negative terminal.
2. Remove engine cover.
3. Remove A/T fluid level gauge.
4. Remove engine under cover with power tool.
5. Remove front cross bar. Refer to FSU-6, "
Removal and Installation".
6. Remove exhaust front tube and center muffler with power tool. Refer to EX-3, "
Component".
7. Remove three way catalyst. Refer to EM-179, "
Removal and Installation".
8. Remove front propeller shaft. Refer to PR-4, "
Removal and Installation".
9. Remove rear propeller shaft. Refer to PR-9, "
Removal and Installation".
10. Remove control rod. Refer to AT-206, "
Control Rod Removal and Installation".
1. A/T fluid charging pipe 2. O-ring 3. Engine mounting insulator (rear)
4. Rear engine mounting member 5. Copper washer 6. Bracket
7. Fluid cooler tube 8. Bracket 9. Bracket
10. Bracket 11. A/T assembly 12. A/T fluid level gauge
SCIA6426E
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AT-246
< SERVICE INFORMATION >
TRANSMISSION ASSEMBLY
11. 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, et c., to get on the sensor's front
edge magnetic area.
 Do not place in an area affected by magnetism.
12. Remove starter motor. Refer to SC-15, "
Removal and Installa-
tion [VQ35DE Engine Models (AWD)]" (for VQ35DE) or SC-13,
"Removal and Installation (VK45DE Engine Models)" (for
VK45DE).
13. Disconnect fluid cooler tube from A/T assembly.
14. Remove rear plate cover. Refer to EM-36, "
Removal and Instal-
lation (AWD Models)" (for VQ35DE) or EM-183, "Removal and
Installation" (for VK45DE).
15. Turn crankshaft, and remove the four tightening bolts for drive plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
16. Remove dynamic damper (for VQ35DE). Refer to EM-117,
"Removal and Installation (AWD Models)".
17. Support A/T assembly with a transmission jack. CAUTION:
When setting the transmission j ack, be careful not to allow
it to collide agai nst the drain plug.
18. Remove rear engine mounting member with power tool.
19. Remove engine mounting insulator (rear).
20. Tilt the A/T assembly slightly to keep the clearance between body and A/T assembly, and then disconnect air breather hose
from A/T fluid charging pipe. Refer to AT-239, "
Removal and
Installation".
21. Disconnect A/T assembly harness connector and transfer assembly harness connector.
22. Remove A/T fluid charging pipe.
23. Remove O-ring from A/T fluid charging pipe.
24. Plug up openings such as the A/T fluid charging pipe hole, etc.
25. Remove bolts fixing transmission assembly to engine with power tool.
SCIA2011E
SCIA5326E
SCIA2010E
SCIA2202E
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TRANSMISSION ASSEMBLYAT-247
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26. Remove A/T assembly with transfer from vehicle. Secure torque converter to prevent it from dropping.
 Secure A/T assembly to a jack.
27. Remove transfer from A/T assembly. Refer to TF-40, "
Removal
and Installation".
INSPECTION
Installation and Inspection of Torque Converter
 After inserting a torque converter to a A/T, be sure to check dis-
tance “A” to ensure it is within the reference value limit.
INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.
 When installing A/T assembly to the engine assembly, atta ch the fixing bolts in accordance with the following
standard.
For VQ35DE models
For VK45DE models
*1 : No.2 bolt also secures A/T fluid charging pipe and washer.
*2 : No.4 bolt also secures bracket.
(A) : A/T to engine
SCIA2203E
Distance “A”
VQ35DE models : 25.0 mm (0.98 in) or more
VK45DE models : 22.0 mm (0.87 in) or more
SAT017B
Bolt No. 1234
Number of bolts1521
Bolt length
“”mm (in) 55 (2.17) 65 (2.56) 35 (1.38) 40 (1.57)
Tightening torque
N·m (kg-m, ft-lb) 75
(7.7, 55) 47
(4.8, 35) 34
(3.5, 25)
SCIA4600E
Bolt No. 1 2*134*2
Number of bolts 4 1 4 1
Bolt length mm (in) 70 (2.76) 70 (2.76) 65 (2.56) 70 (2.76)
Tightening torque
N·m (kg-m, ft-lb) 11 3
(12, 83) 74.0
(7.5, 55) 11 3
(12,83)
SCIA7756E
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AT-248
< SERVICE INFORMATION >
TRANSMISSION ASSEMBLY
 Align the positions of tightening bolts for drive plate with those ofthe torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque. Refer to "COMPO-
NENTS (FOR VQ35DE)" or "COMPONENTS (FOR VK45DE)".
CAUTION:
 Do not reuse O-ring and copper washers.
 When turning crankshaft, turn it clockwise as viewed from the
front of the engine.
 When tightening the tightening bolts for the torque converter
after fixing the crankshaft pulley bolts, be sure to confirm the
tightening torque of the crankshaft pulley mounting bolts.
Refer to EM-65, "
Removal and Installation" (for VQ35DE) or
EM-200, "
Removal and Installation" (for VK45DE)
 After converter is installed to drive plate, rota te crankshaft several turns and check to be sure that
transmission rotates fr eely without binding.
 Install crankshaft position sensor (POS). Refer to EM-35, "
Component (AWD Models)" (for VQ35DE) or EM-
183, "Component" (for VK45DE).
 After completing installation, check A/T fluid leakage, A/T fluid level, and the positions of A/T. Refer to AT- 11 ,
"Checking A/T Fluid", AT-207, "Checking of A/T Position".
SCIA2010E
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OVERHAULAT-249
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OVERHAUL
ComponentINFOID:0000000001327400
VQ35DE models
SCIA8098E
1. O-ring 2. Oil pump cover 3. O-ring
4. Oil pump housing 5. Self-sealing bolt 6. Torque converter
7. Converter housing 8. Oil pump housing oil seal 9. Bearing race
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AT-250
< SERVICE INFORMATION >
OVERHAUL
10. Needle bearing 11. O-ring 12. Front carrier assembly
13. Snap ring 14. Front sun gear 15. 3rd one-way clutch
16. Snap ring 17. Bearing race 18. Needle bearing
19. Seal ring 20. Input clutch assembly 21. Needle bearing
22. Rear internal gear 23. Brake band 24. Mid carrier assembly
25. Needle bearing 26. Bearing race 27. Rear carrier assembly
28. Needle bearing 29. Mid sun gear 30. Seal ring
31. Rear sun gear 32. 1st one-way clutch 33. Snap ring
34. Needle bearing 35. High and low reverse clutch hub 36. Snap ring
37. Bearing race 38. Needle bearing
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-8, "
Component".
However, refer to the following symbol for others.
: Apply Genuine RTV silicone sealant or equivalent. Refer to GI-44, "
Recommended Chemical Product and Sealant".
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OVERHAULAT-251
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VK45DE models
SCIA7984E
1. O-ring 2. Oil pump cover 3. O-ring
4. Oil pump housing 5. Self-sealing bolt 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
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AT-252
< SERVICE INFORMATION >
OVERHAUL
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
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-8, "
Component".
However, refer to the following symbols for others. : Apply Genuine RTV silicone sealant or equivalent. Refer to GI-44, "
Recommended Chemical Product and Sealant".
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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OVERHAULAT-253
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VQ35DE models
SCIA7389E
1. Bearing race 2. High and low reverse clutch assem- bly3. Needle bearing
4. Direct clutch assembly 5. Needle bearing 6. Reverse brake dish plate
7. Reverse brake driven plate 8. N-sprig 9. Snap ring
10. Reverse brake retaining plate 11. Reverse brake drive plate 12. Snap ring
13. Spring retainer 14. Return spring 15. Reverse brake piston
16. D-ring 17. D-ring
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AT-254
< SERVICE INFORMATION >
OVERHAUL
VK45DE models
SCIA6982E
1. Bearing race 2. High and low reverse clutch assembly 3. Needle bearing
4. Direct clutch assembly 5. Needle bearing 6. Reverse brake dish plate
7. Reverse brake dish plate 8. Reverse brake driven plate 9. N-spring
10. Snap ring 11. Reverse brake retaining plate 12. Reverse brake drive plate
13. Snap ring 14. Spring retainer 15. Return spring
16. Reverse brake piston 17. D-ring 18. D-ring
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-8, "
Component".
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C