Nissan Sentra B18 (2020-2025) Service Manual: Differential Side Oil Seal
Exploded View
Exploded View
|
1. |
Differential side oil seal (transaxle case side) |
2. |
Differential side oil seal (converter housing side) |
Removal and Installation
Removal and Installation
REMOVAL
Note:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.
Remove front drive shaft. Refer to Removal and Installation (LH) or Removal and Installation (RH).
Remove differential side oil seal
(1) using suitable tool (A).
CAUTION:
Be careful not to scratch transaxle case and converter housing.
INSTALLATION
Installation is in the reverse order of removal.
Measure lip height (A) and determine
differential side oil seal insertion reference value (B) from the
list to calculate lip protrusion (C).
|
(1) |
: Differential side oil seal |
|
(2) |
: Converter housing or transaxle case |
|
Lip protrusion (C) |
: C=A–B |
|
Differential side oil seal insertion reference value (B): |
|
|
Transaxle case side |
: 1.8 mm (0.071 in) |
|
Converter housing side |
: 2.2 mm (0.087 in) |
CAUTION:
-
Do not reuse differential side oil seal.
-
Put a mark on the measurement area and measure height of seal lip at four points diagonally using suitable tool.
Since seal lips have a tolerance of ± 0.3 mm (± 0.012 in) at maximum due to manufacturing tolerances or packing conditions, it is necessary to measure the seal lip height beforehand to clarify the tolerance.
As an indicator of the parallelism
and insertion depth, cut a masking tape (1) to specified width [add
1 mm (0.04 in) to the value calculated from the tip of differential
side oil seal lip] and affix to the differential side oil seal. 
Install the differential side oil seal, using Tools.
|
Tool number |
: :KV31501200 (NI–52281) |
|
Tool number |
: :KV31500910 (NI–52282) |
|
Tool number |
: :ST35325000 (NI–8092) |
CAUTION:
-
If differential side oil seal is inserted deeper than the reference value, use a new differential side oil seal and perform the steps again.
-
Apply CVT fluid to the differential side oil seal lip and around the oil seal.
Remove masking tape.
Adjust as instructed below to optimize the protrusion size and parallelism.
CAUTION:
If differential side oil seal is inserted deeper than the reference value, use a new differential side oil seal and perform the steps again.
-
Protrusion size (A)
CAUTION:
Protrusion must fall within ± 0.5 mm (0.020 in) of calculated size.
-
Parallelism at four diagonal points (
)
CAUTION:
The difference among four diagonal points must be within 0.3 mm (0.012 in).
Note:
If differential side oil seal is uneven while installing, tilt suitable tool.
Check that the protrusion size and parallelism are adequate.
Inspection and Adjustment
Inspection and Adjustment
INSPECTION AFTER INSTALLATION
Drive the vehicle and check visually that there is no leakage of CVT fluid. Refer to Inspection.
ADJUSTMENT AFTER INSTALLATION
Adjust the CVT fluid level. Refer to Adjustment.
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