IDX INFINITI QX4 2001 Factory Service Manual

SMT969C
2. Set clutch piston to a clutch piston attachment (KV31103400).
SMT970C
3. Set the clutch piston attachment to center case, and install
clutch piston, tap it lightly.
4. Install slide needle bearing race to clutch piston.
SMT915C
5. Remove all the liquid gasket from oil pressure check port and
inside center case. With oil pressure check plug threaded in 1
or 2 pitches, apply gasket fluid 1215 (Three Bond) to the thread
of plug, and tighten.
: 10 - 17 N´m (1.0 - 1.7 kg-m, 87 - 148 in-lb)
6. Install mainshaft and clutch drum. Refer to ªMainshaft and
Clutch Drumº, TF-149.
SMT972C
Mainshaft and Clutch DrumNBTF0083S061. Install drive plates, driven plates and press flange to clutch
hub.
2. Place clutch hub on a surface plate and measure dimension
ªAº between snap ring mounting surface of press flange and
clutch drum sliding face of clutch hub.
CAUTION:
Measure at least 2 points, and take an average.
SMT973C
3. Measure dimension ªBº between the gear end of mainshaft
and the snap ring mounting portion.
4. Calculate end play using dimension ªAº and dimension ªBº
(obtained in steps 2 and 3), and select proper retaining plate
so that the end play is within specifications.
Calculation formula:
End play = B þ A þ Retaining plate thickness
Standard end play:
0.2 - 0.5 mm (0.008 - 0.020 in)
Retaining plate:
Refer to SDS, TF-158.
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ASSEMBLY
Center Case (Cont'd)
TF-149

SMT907C
10. Pass mainshaft through snap ring. Set a drift (KV31103300),
a support ring (KV40104710), a support ring (ST27863000)
and a drift (ST35271000) to press flange at the position shown
in the figure, and press snap ring until it fits into snap ring
groove on mainshaft.
IDo not reuse snap ring.
SMT908C
11. Fix snap ring to mainshaft.
SMT905C
12. Install thrust needle bearing to press flange.
SMT982C
13. Apply petroleum jelly to new seal rings, and install them to
mainshaft. Measure clearance between seal ring and groove
using feeler gauge.
Standard clearance:
0.05 - 0.30 mm (0.0020 - 0.0118 in)
Limit clearance:
0.30 mm (0.0118 in)
IPass seal ring from mainshaft rear end to install it.
Seal ring dimension:
Refer to SDS, TF-159.
SMT983C
14. Install mainshaft rear bearing to center case.
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ASSEMBLY
Center Case (Cont'd)
TF-151

SMT989C
5. Align claw of oil gutter with center case, and install it.
6. Install front case assembly and rear case assembly.
Refer to ªFinal Assemblyº, TF-153.
SMT891C
Final AssemblyNBTF00841. Install C-rings to mainshaft rear bearing.
SMT889C
2. Check speedometer drive gear teeth for abnormal wear. Set
speedometer drive gear properly on mainshaft, and secure it
with snap ring.
IDo not reuse snap ring.
SMT893C
3. Apply sealing fluid 518 (Locktite) to the entire center case
mounting surface of front case as shown in the figure.
CAUTION:
Remove all foreign materials such as water, oil and grease
from center case and front case mating surfaces.
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ASSEMBLY
Center Case (Cont'd)
TF-153

SMT881C
11. Remove rear oil seal.
IDo not reuse oil seal.
SMT882C
12. Apply ATF to the circumference of new rear oil seal, and tap it
using a drift as shown in the figure so that it is aligned with
case tip face.
IApply multi-purpose grease to oil seal lip.
SMT879C
13. Apply sealing fluid 518 (Locktite) to entire rear case mounting
surface of center case as shown in the figure.
CAUTION:
IRemove all foreign materials such as water, oil, and
grease from center case and rear case mating surfaces.
IBe careful not to allow sealing fluid to clog bleeder hole.
14. Install rear case to center case, and tighten bolts to specified
torque.
: 41 - 48 N´m (4.2 - 4.9 kg-m, 30 - 35 ft-lb)
IBe sure to attach harness clips.
SMT880C
15. Remove all the gasket fluid 1215 (Three Bond) from switch
mounting area and inside rear case, with ATP switch and neu-
tral-4LO switch threaded in 1 to 2 pitches, apply gasket fluid
1215 (Three Bond) to the thread of the switches and tighten it
to specified torque.
: 15 - 20 N´m (1.5 - 2.0 kg-m, 11 - 14 ft-lb)
16. Install rear case assembly to center case assembly.
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ASSEMBLY
Final Assembly (Cont'd)
TF-155

General SpecificationsNBTF0085
Transfer modelATX14A
Gear ratioHigh1.000
Low2.596
Number of teethPlanetary gearSun gear 57
Internal gear 91
Front drive sprocket 35
Front drive shaft 35
Fluid capacity(US qt, Imp qt)*3.0 (3-1/8, 2-5/8)
*: Refer to MA-11, ªFluids and Lubricantsº.
Inner Gear and Outer GearNBTF0086SUB-OIL PUMPNBTF0086S01
Allowable clearance 0.015 - 0.035 mm (0.0006 - 0.0014 in)
Gear thickness mm (in)Part No.*
Inner gear Outer gear
9.27 - 9.28 (0.3650 - 0.3654) 31346 0W462 31347 0W462
9.28 - 9.29 (0.3654 - 0.3657) 31346 0W461 31347 0W461
9.29 - 9.30 (0.3657 - 0.3661) 31346 0W460 31347 0W460
*: Always check with the Parts Department for the latest parts information.
MAIN OIL PUMPNBTF0086S02
Allowable clearance 0.015 - 0.035 mm (0.0006 - 0.0014 in)
Gear thickness mm (in)Part No.*
Inner gear Outer gear
14.67 - 14.68 (0.5776 - 0.5780) 31346 0W412 31347 0W412
14.68 - 14.69 (0.5780 - 0.5783) 31346 0W411 31347 0W411
14.69 - 14.70 (0.5783 - 0.5787) 31346 0W410 31347 0W410
*: Always check with the Parts Department for the latest parts information.
Control ValveNBTF0087VALVENBTF0087S01
Mounting position Part name Part No.* Outer dia. mm (in) Overall length mm (in)
L1 2-4 shift valve 31772 21X00 8.0 (0.315) 38.5 (1.516)
L2 Clutch valve 31772 80X11 10.0 (0.394) 40.0 (1.575)
L4 Pilot valve 31772 80X11 10.0 (0.394) 40.0 (1.575)
L5 Regulator valve 31741 0W410 12.0 (0.472) 68.0 (2.677)
*: Always check with the Parts Department for the latest parts information.
SPRINGNBTF0087S02
Mounting position Part name Part No.*Free length
mm (in)Outer dia.
mm (in)Wire dia. mm (in) Winding direction
L12-4 shift valve
spring31742 0W400 31.85 (1.2539) 7.0 (0.276) 0.6 (0.024) Clockwise
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SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
TF-157

Standard end play 0.2 - 0.5 mm (0.008 - 0.020 in)
Measured value mm (in) Part No.* Thickness mm (in)
4.30 - 4.50 (0.1693 - 0.1772) 31537 0W420 4.1 (0.161)
4.50 - 4.70 (0.1772 - 0.1850) 31537 0W421 4.3 (0.169)
4.70 - 4.90 (0.1850 - 0.1929) 31537 0W422 4.5 (0.177)
4.90 - 5.10 (0.1929 - 0.2008) 31537 0W423 4.7 (0.185)
*: Always check with the Parts Department for the latest parts information.
Seal Ring (Mainshaft side)NBTF0089
Standard clearance
Limit clearance0.05 - 0.30 mm (0.0020 - 0.0118 in)
0.30 mm (0.0118 in)
Part No.* Outer dia. mm (in) Inner dia. mm (in) Thickness mm (in)
31525 0W410 40.8 (1.606) 36.9 (1.453) 1.97 (0.471)
*: Always check with the Parts Department for the latest parts information.
Bearing Race (Thrust needle bearing side)NBTF0090
Standard end play 0.1 - 0.25 mm (0.0039 - 0.0098 in)
End play (Dimension ªEº) mm (in) Part No.* Thickness mm (in)
1.785 - 1.800 (0.0703 - 0.0709) 31439 0W410 1.6 (0.063)
1.800 - 1.900 (0.0709 - 0.0748) 31439 0W411 1.7 (0.067)
1.900 - 2.000 (0.0748 - 0.0787) 31439 0W412 1.8 (0.071)
2.000 - 2.100 (0.0787 - 0.0827) 31439 0W413 1.9 (0.075)
2.100 - 2.200 (0.0827 - 0.0866) 31439 0W414 2.0 (0.079)
2.200 - 2.270 (0.0866 - 0.0894) 31439 0W415 2.1 (0.083)
*: Always check with the Parts Department for the latest parts information.
Snap Ring (Sun gear side)NBTF0091
Standard end play 0 - 0.15 mm (0 - 0.0059 in)
End play (Dimension ªFº) mm (in) Part No.* Thickness mm (in)
2.40 - 2.50 (0.0945 - 0.0984) 33112 0W411 2.4 (0.094)
2.50 - 2.60 (0.0984 - 0.1024) 33112 0W412 2.5 (0.098)
2.60 - 2.70 (0.1024 - 0.1063) 33112 0W413 2.6 (0.102)
*: Always check with the Parts Department for the latest parts information.
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SERVICE DATA AND SPECIFICATIONS (SDS)
Clutch (Cont'd)
TF-159