2008 NISSAN LATIO service

REPAIR FOR COMPONENT PARTS
AT-315
< SERVICE INFORMATION >
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• Check mating surfaces of differential case, side gears, pinion mate
gears and pinion mate shaft. Replace if necessary.
• Check washers for wear. Replace if necessary.
Bearings
• Make sure bearings roll freely and are free from noise, cracks, pit-
ting or wear. Replace if necessary.
CAUTION:
When replacing taper roller bearing, replace outer and inner
race as a set.
ASSEMBLY
1. Attach side gear thrust washers to side gears, then install pinion
mate thrust washers and pinion mate gears in place.
CAUTION:
Apply ATF to any parts.
2. Insert pinion mate shaft.
CAUTION:
• When inserting, be careful not to damage pinion mate
gear thrust washers.
• Apply ATF to pinion mate shaft.
3. Select side gear thrust washers according to the following procedures.
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SPD715
SMT839
SMT087A

AT-316
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
a. Place differential case in the upright position so that the side
gear to be measured is at the top.
(A): Location for inserting feeler gauge
(B): Side gear tooth
(C): The center line of differential case
b. In order to maximize the back clearance, rotate side gears so
that a tooth on side gears at the top and bottom will align at the
same position as shown in the figure.
c. Adjust the back clearance of side gear according to the following
procedures.
i. Insert feeler gauges A of the same thickness to the back of side
gear from both sides, preventing side gear from falling, to mea-
sure the clearance.
• Measure clearance 3 times by rotating side gears and take the
average.
CAUTION:
In all 3 measurements, maximize the clearance by aligning
teeth on side gears at the top and bottom at the same posi-
tion.
ii. Select side gear thrust washer so that the clearance will fall
within the standard.
iii. Turn differential case upside down, and measure the back clear-
ance of the other side gear in the same manner.
NOTE:
Adjust the clearance to approx. 0.1 mm (0.004 in) for used differ-
ential [driven approx. 3,000 km (1864 mile) or more].
4. Install lock pin (1) to pinion mate shaft using the pin punch A.
CAUTION:
• Do not reuse lock pin.
• Make sure that lock pin is flush with differential case.
5. Install speedometer drive gear on differential case.
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Differential side gear clearance:
Refer to AT-345, "
Final Drive".
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Tool number: KV32101000 (J-25689-A)
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SAT313D

REPAIR FOR COMPONENT PARTS
AT-317
< SERVICE INFORMATION >
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6. Set drift A [commercial service tool] on differential side bearing
inner race, and press differential side bearing inner race into dif-
ferential case.
CAUTION:
Apply ATF to differential side bearings.
7. Install differential side bearing outer race and differential side
bearing adjusting shim on transaxle case. Refer to AT-318,
"Assembly (1)".
8. Tighten final gear and tighten fixing bolts to the specified torque
in numerical order as shown in the figure after temporarily tight-
ening them. Refer to "COMPONENTS".
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AT-318
< SERVICE INFORMATION >
ASSEMBLY
ASSEMBLY
Assembly (1)INFOID:0000000001703391
1. Drive each differential side oil seal evenly using a drift (SST and
commercial service tool) so that differential side oil seal pro-
trudes by the dimension “C” or “D” respectively.
(1): LH differential side oil seal
(2): RH differential side oil seal
(A): Transaxle case side
(B): Converter housing side
Unit: mm (in)
NOTE:
Differential side oil seal pulling direction is used as the reference.
Drift to be used:
2. Install O-ring on governor cap.
CAUTION:
• Do not reuse O-ring.
• Apply ATF to O-ring.
3. Install governor cap in transaxle case.
4. Install snap ring in transaxle case.
5. Install parking actuator support (1) on transaxle case.
(A): Inside
(B): Outside
CAUTION:
Be careful with the direction of parking actuator support (1).
6. Tighten parking actuator support fitting bolts to the specified
torque. Refer to AT-230, "
Component".
7. Install parking pawl (2) on transaxle case, and fix it with parking
shaft (1).
Dimension “C” 0 ± 0.5 (0 ± 0.020)
Dimension “D” 6 ± 0.5 (0.043 ± 0.020)
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Location Tool number
Transaxle case side (A)ST35325000 ( – )
KV31103000 (J-38982)
Converter housing side (B)Commercial service tool [Inner diameter: 47 mm (1.85 in), outer di-
ameter: 54 mm (2.13 in)]
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ASSEMBLY
AT-319
< SERVICE INFORMATION >
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8. Install return spring (2) on parking shaft (3) and parking pawl (1)
using a flat-bladed screwdriver.
Adjustment (1)INFOID:0000000001703392
DIFFERENTIAL SIDE BEARING PRELOAD
1. Select proper thickness of differential side bearing adjusting shim using the following procedures.
a. Install differential side bearing outer race without differential side
bearing adjusting shim on transaxle case.
CAUTION:
Apply ATF to differential side bearing outer race.
b. Install differential side bearing outer race on converter housing.
CAUTION:
Apply ATF to differential side bearing outer race.
c. Place final drive assembly on transaxle case.
d. Tighten converter housing fitting bolts (1) and (2) to the specified
torque. Refer to AT-313, "
Final Drive".
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SAT947DA
Bolt 1 2
Bolt length
[mm (in)]
32.8 (1.291) 40 (1.57)
Number of bolts 10 10
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AT-320
< SERVICE INFORMATION >
ASSEMBLY
e. Attach dial indicator on differential case at converter housing
side.
f. Insert SST into differential side gear from transaxle case side.
g. Move SST up and down and measure dial indicator deflection.
h. Select proper thickness of differential side bearing adjusting
shim. Refer to “Parts Information” for differential side bearing
adjusting shim selection.
Suitable shim thickness = Dial indicator deflection + Speci-
fied bearing preload
i. Remove converter housing from transaxle case.
j. Remove final drive assembly from transaxle case.
k. Remove differential side bearing outer race from transaxle case.
l. Reinstall differential side bearing outer race and differential side
bearing adjusting shim selected from “Parts Information” on
transaxle case.
m. Reinstall converter housing on transaxle case and tighten con-
verter housing mounting bolts to the specified torque. Refer to
AT-230, "
Component".
n. Insert SST and measure turning torque of final drive assembly.
•Turn final drive assembly in both directions several times
to seat bearing rollers correctly.
•When old bearing is used again, turning torque will be
slightly less than the above.
•Make sure torque is close to the specified range.
REDUCTION PINION GEAR BEARING PRELOAD
1. Select proper thickness of reduction pinion gear adjusting shim using the following procedures.Suitable shim thickness = Dial indicator deflection +
Specified bearing preload
Bearing preload: Refer to AT-345, "
Final Drive".
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Turning torque of final drive assembly
(New bearing):
Refer to AT-345, "
Final Drive".
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ASSEMBLY
AT-321
< SERVICE INFORMATION >
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a. Place reduction pinion gear on transaxle case as shown in the
figure.
b. Install idler gear bearing outer race on transaxle case. Refer to
AT-302, "
Output Shaft, Output Gear, Idler Gear, Reduction Pin-
ion Gear and Bearing Retainer".
c. Place idler gear bearing inner race on outer race.
d. Measure dimensions “B”, “C” and “D”, and calculate dimension
“A”.
• Measure dimension “B” between the end of reduction pinion
gear and the surface of transaxle case.
•Measure dimension “B” in at least two places, and take
the average.
• Measure dimension “C” between the surface of idler gear
bearing inner race and the surface of transaxle case.
•Measure dimension “C” in at least two places, and take
the average.
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“A”: Distance between the surface of idler gear bear-
ing inner race and the adjusting shim mating
surface of reduction pinion gear.
A = D − (B + C)
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AT-322
< SERVICE INFORMATION >
ASSEMBLY
• Remove reduction pinion gear from transaxle case.
• Measure dimension “D” between the end of reduction pinion
gear and the adjusting shim mating surface of reduction pinion
gear.
•Measure dimension “D” in at least two places, and take
the average.
• Calculate dimension “A”.
e. Measure dimension “E” between the end of idler gear and idler
gear bearing inner race mating surface of idler gear.
•Measure dimension “E” in at least two places, and take
the average.
f. Select proper thickness of reduction pinion gear adjusting shim.
Refer to “Parts Information” for reduction pinion gear adjusting
shim selection.
2. Install reduction pinion gear and reduction pinion gear adjusting
shim selected in step 1-f on transaxle case.
CAUTION:
Apply ATF to reduction pinion gear bearing.
3. Press idler gear bearing inner race on idler gear. Refer to AT-
302, "Output Shaft, Output Gear, Idler Gear, Reduction Pinion
Gear and Bearing Retainer".
4. Press idler gear on reduction pinion gear.
CAUTION:
• Apply ATF to idler gear bearing.
• Press idler gear until idler gear fully contacts reduction
pinion gear bearing adjusting shim.
5. Set manual shaft in “P” position to fix idler gear.
6. Tighten lock nut of idler gear to the specified torque. Refer to AT-230, "
Component".
CAUTION:
Lock idler gear with parking pawl when tightening lock nut.
7. Measure turning torque of reduction pinion gear.
•When measuring turning torque, turn reduction pinion
gear in both directions several times to seat bearing roll-
ers correctly.
•If turning torque is out of specification, decrease or
increase thickness of reduction pinion gear adjusting
shim.A = D − (B + C)
SAT336DA
Proper shim thickness = A − E − 0.05 mm (0.0020 in)*
(*: Bearing preload)
SAT337D
Turning torque of reduction pinion gear:
Refer to AT-345, "
Reduction Pinion Gear".
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