Oil seal NISSAN LATIO 2007 Service Owner's Manual

AT-290
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
3. Remove inner gear and outer gear from oil pump housing.
4. Remove oil pump housing oil seal using a flat-bladed screw-
driver.
CAUTION:
Be careful not to scratch oil pump housing.
SAT0 9 2D
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REPAIR FOR COMPONENT PARTS
AT-291
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Revision: June 20062007 Versa
INSPECTION
Oil Pump Housing, Oil Pump Cover, Inner Gear and Outer Gear
Check for wear or damage. Replace if necessary.
Side Clearances

Measure side clearance of inner gear and outer gear in at least
four places around each outside edge. Clearances measured
values should be within the specified clearance.

If clearance is less than standard, select inner gear and outer
gear as a set so that clearance is within specifications. Refer to
“Parts Information” for the inner gear and outer gear selection.

If clearance is more than standard, replace whole oil pump
assembly except oil pump cover.

Measure clearance between outer gear and oil pump housing.

If not within allowable limit, replace whole oil pump assembly
except oil pump cover.
Seal Ring Clearance

Measure clearance between seal ring and ring groove.

If not within allowable limit, replace oil pump cover assembly.Standard clearance: Refer to AT- 3 8 2 , "
Oil Pump" .
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Standard clearance and allowable limit:
Refer to AT-382, "
Oil Pump" .
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Standard clearance and allowable limit:
Refer to AT-382, "
Oil Pump" .
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AT-292
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
ASSEMBLY
1. Install oil pump housing oil seal on oil pump housing.
CAUTION:

Do not reuse oil pump housing oil seal.

Apply ATF to outer surface of oil pump housing oil seal.
2. Install inner gear and outer gear on oil pump housing.
CAUTION:
Be careful with the direction of inner gear.
3. Install oil pump cover on oil pump housing.
a. Wrap masking tape around splines of oil pump cover assembly
to protect seal. Position oil pump cover assembly on oil pump
housing assembly, then remove masking tape.
b. Tighten oil pump cover fitting bolts in the order as shown in the
figure, and then tighten them to the specified torque in the same
order. Refer to AT-289, "
COMPONENTS" .
4. Install seal rings (1) to oil pump assembly (2) carefully after
packing ring groove with petroleum jelly.
CAUTION:
Do not spread gap of seal rings (1) excessively while install-
ing. The seal rings (1) may be deformed.
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SAT1 0 1D
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REPAIR FOR COMPONENT PARTS
AT-309
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Revision: June 20062007 Versa
Reverse ClutchUCS005W 8
COMPONENTS
DISASSEMBLY
1. Check operation of reverse clutch
a. Install seal rings to drum support of oil pump assembly, and set reverse clutch assembly.
b. Apply compressed air into the oil hole at the location as shown
in the figure.
c. Check to see that retaining plate moves to snap ring.
d. If retaining plate does not contact snap ring:

D-ring might be damaged.

Seal lip might be damaged.

Fluid might be leaking past piston check ball.
2. Remove snap ring (1) using a flat-bladed screwdriver A.
3. Remove retaining plate, drive plates, driven plates and dish
plates.
1. Reverse clutch drum 2. D-ring 3. Seal lip
4. Reverse clutch piston 5. Spring retainer assembly 6. Snap ring
7. Dish plate 8. Driven plate 9. Retaining plate
10. Snap ring 11. Drive plate
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-10, "
Components" .
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SAT1 5 5D
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AT-310
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
4. Set Tool A on spring retainer assembly, and remove snap ring
(1) from reverse clutch drum while compressing spring retainer
assembly.
CAUTION:
Set SST directly over return springs.
5. Remove spring retainer assembly from reverse clutch drum.
CAUTION:
Do not remove return springs from spring retainer.
6. Install seal rings to drum support of oil pump assembly (1), and
set reverse clutch drum (2). Then apply compressed air into the
oil hole at the location as shown in the figure to remove reverse
clutch piston (3) from reverse clutch drum (2).
CAUTION:
Do not flow air in too quickly or reverse clutch piston (3)
and ATF could jump out. Carefully flow air in little by little
while protecting with lint-free cloth.
7. Remove D-ring (1) and seal lip (2) from reverse clutch piston (3).Tool number: KV31103200 (J-39186)
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AT-314
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
High ClutchUCS005W9
COMPONENTS
DISASSEMBLY
1. Check operation of high clutch.
a. Apply compressed air into the oil hole (A) of input shaft assem-
bly (high clutch drum) at the location as shown in the figure.
CAUTION:
Block the oil hole (A) on the opposite side with lint-free
cloth B.
b. Check to see that retaining plate moves to snap ring.
c. If retaining plate does not contact snap ring:

High clutch piston seal might be damaged.
2. Remove seal rings from input shaft assembly (high clutch drum).
1. Seal ring 2. Driven plate 3. Retaining plate
4. Snap ring 5. Drive plate 6. Snap ring
7. Cancel cover 8. Spring retainer assembly 9. High clutch Piston
10. Input shaft assembly (high clutch
drum)
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AT-320
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
Forward and Overrun ClutchesUCS005WA
COMPONENTS
DISASSEMBLY
1. Check operation of forward clutch.
a. Install seal rings to bearing retainer, and set forward clutch drum.
b. Apply compressed air into oil hole of bearing retainer at the loca-
tion as shown in the figure.
c. Check to see that retaining plate moves to snap ring.
d. If retaining plate does not contact snap ring:

D-ring might be damaged.

Seal lip might be damaged.

Fluid might be leaking past piston check ball.
2. Check operation of overrun clutch.
a. Install seal rings to bearing retainer, and set forward clutch drum.
1. Dish plate 2. Driven plate 3. Retaining plate
4. Snap ring 5. Dish plate 6. Driven plate
7. Retaining plate 8. Snap ring 9. Forward clutch
10. Drive plate 11. Drive plate 12. Overrun clutch
13. Snap ring 14. Spring retainer assembly 15. Overrun clutch piston
16. D-ring 17. Seal lip 18. Forward clutch piston
19. D-ring 20. Seal lip 21. Forward clutch drum
Refer to Refer to Service Manual for symbol mark in the figure.
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REPAIR FOR COMPONENT PARTS
AT-321
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Revision: June 20062007 Versa
b. Apply compressed air into oil hole of bearing retainer at the loca-
tion as shown in the figure.
c. Check to see that retaining plate moves to snap ring.
d. If retaining plate does not contact snap ring:

D-ring might be damaged.

Seal lip might be damaged.

Fluid might be leaking past piston check ball.
3. Remove snap ring for forward clutch from forward clutch drum
using a flat-bladed screwdriver.
4. Remove retaining plate, drive plates, driven plates and dish
plate for forward clutch.
5. Remove snap ring for overrun clutch from forward clutch drum
using a flat-bladed screwdriver.
6. Remove retaining plate, drive plates, driven plates and dish
plate for overrun clutch.
7. Set Tool A on spring retainer assembly, and remove snap ring
(1) from forward clutch drum while compressing spring retainer
assembly.
CAUTION:

Set SST directly over return springs.

Do not expand snap ring excessively.
8. Remove spring retainer assembly from forward clutch drum.
CAUTION:
Do not remove return springs from spring retainer.
9. Install seal rings to bearing retainer (1), and set forward clutch
drum. Then apply compressed air into the oil hole at the location
as shown in the figure to remove overrun clutch piston from for-
ward clutch piston.
CAUTION:
Do not blow air in too quickly, or overrun clutch piston and
ATF could jump out. Carefully blow air little by little while
protecting with lint-free cloth.
SAT2 0 2D
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Tool number: KV31103200 (J-39186)
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AT-322
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
10. Install seal rings to bearing retainer (1), and set forward clutch
drum. Then apply compressed air into the oil hole at the location
as shown in the figure to remove forward clutch piston from for-
ward clutch drum.
CAUTION:
Do not blow air in too quickly, or forward clutch piston and
ATF could jump out. Carefully blow air little by little while
protecting with lint-free cloth.
11. Remove seal lips (1) and D-rings (2) from forward clutch piston
(3) and overrun clutch piston (4).
INSPECTION
Forward Clutch and Overrun Clutch Snap Rings
Check for deformation, fatigue or damage. Replace if necessary.
Forward Clutch and Overrun Clutch Drive Plates

Check facing for burns, cracks or damage. Replace if necessary.

Measure thickness of facing.
CAUTION:

Measure the thickness at 3 locations and find the average.

Inspect all drive plates.

Replace if the thickness is below the allowable limit.
Forward Clutch and Overrun Clutch Dish Plates

Check for deformation or damage.

Measure thickness (t) of dish plate. Replace if damaged,
deformed or worn.
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Thickness of drive plate
Forward clutch
Standard and allowable limit:
Refer to AT-381, "
FORWARD CLUTCH" .
Overrun clutch
Standard and allowable limit:
Refer to AT-381, "
OVERRUN CLUTCH" .SAT1 6 2D
Thickness of dish plate (t)
Forward clutch: 2.5 mm (0.098 in)
Overrun clutch: 2.15 mm (0.0846 in)
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REPAIR FOR COMPONENT PARTS
AT-323
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Revision: June 20062007 Versa
Forward Clutch and Overrun Clutch Spring Retainer Assembly
Check length (L) of spring retainer assembly. Replace if damaged,
deformed or worn.
CAUTION:
Do not remove return springs (A) from spring retainer (B)
Forward Clutch Drum

Make sure that check balls are not fixed.

Apply compressed air to check ball oil hole from outside of for-
ward clutch drum. Make sure air leaks past ball.

Apply compressed air to oil hole from inside of forward clutch
drum. Make sure there is no air leakage.
Overrun Clutch Piston

Make sure that check balls are not fixed.

Apply compressed air to check ball oil hole opposite return
spring. Make sure there is no air leakage.

Apply compressed air to oil hole on return spring side. Make
sure that air leaks through ball hole.
ASSEMBLY
1. Install seal lips (1) and D-rings (2) on forward clutch piston (3)
and overrun clutch piston (4).
CAUTION:
Be careful with the direction of seal lips (1).Length (L): 27.7 mm (0.1091 in)
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SAT2 1 2D
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