Infiniti M35/M45 Y50. Manual — part 88
TRANSMISSION ASSEMBLY
AT-275
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VK45DE models
REMOVAL
CAUTION:
●
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS)
from the A/T assembly.
●
Be careful not to damage sensor edge.
1.
Disconnect the battery cable from the negative terminal.
2.
Remove engine under cover with power tool.
3.
Remove A/T fluid level gauge.
4.
Remove exhaust front tube and center muffler with power tool. Refer to
EX-5, "Removal and Installation"
(for VQ35DE engine),
EX-7, "Removal and installation"
(for VK45DE engine).
5.
Remove heat insulator.
6.
Remove rear propeller shaft. Refer to
PR-8, "Removal and Installation"
.
7.
Remove rack stay. Refer to
FSU-9, "Removal and Installation"
.
8.
Remove exhaust mounting bracket. Refer to
EX-5, "Removal and Installation"
(for VQ35DE engine),
9.
Remove control rod. Refer to
AT-226, "Control Rod Removal and Installation"
SCIA7320E
1.
A/T assembly
2.
A/T fluid level gauge
3.
A/T fluid charging pipe
4.
O-ring
5.
Copper washer
6.
Fluid cooler tube
7.
Bracket
8.
Rear engine mounting member
9.
Engine mounting insulator (rear)
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to
.
However, refer to following symbols for others.
:
AT-276
TRANSMISSION ASSEMBLY
10. Remove crankshaft position sensor (POS) (1) from A/T assem-
bly.
CAUTION:
●
Do not subject it to impact by dropping or hitting it.
●
Do not disassemble.
●
Do not allow metal filings, etc., to get on the sensor's
front edge magnetic area.
●
Do not place in an area affected by magnetism.
11. Remove starter motor. Refer to
12. Remove rear cover plate. Refer to
(for VQ35DE engine).
13. Remove rear plate cover. Refer to
EM-31, "Removal and Installation (2WD Models)"
(for VQ35DE
engine),
EM-187, "Removal and Installation"
(for VK45DE engine).
14. Turn crankshaft, and remove the four tightening bolts for drive
plate and torque converter.
CAUTION:
When turning the crankshaft, turn it clockwise as viewed
from the front of the engine.
15. Support A/T assembly with a transmission jack.
CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
16. Remove rear engine mounting member with power tool.
17. Remove engine mounting insulator (rear).
18. Disconnect A/T assembly harness connector.
19. Remove air breather hose. Refer to
AT-272, "Removal and Installation"
20. Remove A/T fluid charging pipe from A/T assembly.
21. Remove O-ring from A/T fluid charging pipe.
22. Disconnect fluid cooler tube from A/T assembly.
23. Plug up openings such as the A/T fluid charging pipe hole, etc.
24. Remove bolts fixing A/T assembly to engine assembly with power tool.
25. Remove A/T assembly from vehicle.
CAUTION:
●
Secure torque converter to prevent it from dropping.
●
Secure A/T assembly to a transmission jack.
SCIA6506J
LCIA0335E
SCIA0499E
TRANSMISSION ASSEMBLY
AT-277
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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, attach the fixing bolts in accordance with the follow-
ing standard.
VQ35DE models
VK45DE models
*: No.2 bolt also secures A/T fluid charging pipe.
●
Align the positions of tightening bolts for drive plate with those of
the torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque. Refer to
CAUTION:
●
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
●
When tightening the tightening bolts for the torque con-
verter after fixing the crankshaft pulley bolts, be sure to
confirm the tightening torque of the crankshaft pulley
mounting bolts. Refer to
VQ35DE engine),
engine).
●
After converter is installed to drive plate, rotate crankshaft several turns and check to be sure that
A/T rotates freely without binding.
Distance “A”
VQ35DE models:
25.0 mm (0.98 in) or more
VK45DE models:
22.0 mm (0.87 in) or more
SCIA5694E
Bolt No.
1
2
3
4
Number of bolts
1
5
2
2
Bolt length
“
”mm (in)
55 (2.17)
65 (2.56)
65 (2.56)
35 (1.38)
Tightening torque
N·m (kg-m, ft-lb)
75
(7.7, 55)
55
(5.6, 41)
47
(4.8, 35)
SCIA3949E
Bolt No.
1
2*
3
Number of bolts
5
1
4
Bolt length
“
”mm (in)
70 (2.76)
70 (2.76)
65 (2.56)
Tightening torque
N·m (kg-m, ft-lb)
113
(12, 83)
74
(7.5, 55)
SCIA7068E
SCIA2288E
AT-278
TRANSMISSION ASSEMBLY
●
Install crankshaft position sensor (POS). Refer to
EM-31, "Removal and Installation (2WD Models)"
EM-187, "Removal and Installation"
●
After completing installation, check A/T fluid leakage, A/T fluid level and A/T position. Refer to
AT-228, "Checking of A/T Position"
Removal and Installation (AWD Models)
NCS001QZ
COMPONENTS
REMOVAL
CAUTION:
●
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS)
from the A/T assembly.
●
Be careful not to damage sensor edge.
1.
Disconnect the battery cable from the negative terminal.
2.
Remove engine under cover with power tool.
3.
Remove A/T fluid level gauge.
4.
Remove exhaust front tube and center muffler and with power tool. Refer to
.
1.
A/T assembly
2.
A/T fluid level gauge
3.
A/T fluid charging pipe
4.
O-ring
5.
Copper washer
6.
Fluid cooler tube
7.
Bracket
8.
Heat insulator
9.
Rear engine mounting member
10.
Engine mounting insulator (rear)
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to
However, refer to the following symbols for others.
:
For tightening torque, refer to
SCIA6753E
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