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Home >> Nissan-Datsun >> 2011 >> Sentra L4-2.0L (MR20DE) >> Repair and Diagnosis >> Transmission and Drivetrain >> Manual Transmission/Transaxle >> Service and Repair >> Overhaul >> RS6F52A >> Disassembly And Assembly >> Part 2

Part 2





TRANSAXLE ASSEMBLY


Disassembly and Assembly (Continued)


16. Rotate striking lever of striking rod assembly as shown. Then rotate reverse fork rod to a position where bracket of reverse fork rod does not interfere with striking lever of striking rod assembly.





17. Install retaining pin to reverse shift fork (1).






CAUTION:
- Do not reuse retaining pin.
- Assemble retaining pin from the direction shown by the arrow until it becomes flush with the end surface of reverse shift fork.
18. Install selected differential side bearing adjusting shim(s) and differential side bearing outer race (transaxle case side).
19. Install selected reverse idler gear adjusting shim onto reverse idler gear assembly.
20. Install selected input shaft rear bearing adjusting shim onto input shaft.
21. Install selected striking rod adjusting shim and striking rod shim onto striking rod assembly.





22. Install shifter lever oil seal (1) and striking rod oil seal (2) to transaxle case using suitable tool.






CAUTION:
- Do not reuse shifter lever oil seal or striking rod oil seal.
- When installing, do not incline shifter lever oil seal or striking rod oil seal.
- Do not damage transaxle case.





23. Install differential side oil seal (1) to transaxle case using Tool
(A).






CAUTION:
- Do not reuse differential side oil seal.
- When installing, do not incline differential side oil seal.
- Do not damage transaxle case.





24. Install shifter lever B (1) and shifter lever A (2) to transaxle case.

CAUTION:
Be careful with the orientation of shifter lever B and shifter lever A.






25. Install retaining pin to shifter lever A.

CAUTION:
- Do not reuse retaining pin.
- Assemble retaining pin from the direction shown by the arrow until it becomes flush with the end surface of shifter lever A.
26. Install transaxle case following the procedures below.
a. Install selected mainshaft rear bearing adjusting shim into transaxle case.





b. Install oil gutter A (1) and oil gutter B (2) to transaxle case.

CAUTION:
Insert the tab (A) of oil gutter A and oil gutter B into transaxle case.





c. Temporarily install snap ring of mainshaft rear bearing into transaxle case.

CAUTION:
Do not reuse snap ring.





d. Apply recommended sealant to mating surface of clutch housing as shown.
- Use Genuine Silicone RTV or an equivalent. Recommended Chemical Products And Sealants.

CAUTION:
- Remove old sealant adhering to the mounting surfaces.
Also remove any moisture, oil, or foreign material adhering to both mounting surfaces.
- Apply sealant so as not to break the bead.
- The width of sealant bead is 1 - 2 mm (0.04 - 0.08 in).
- The height of sealant bead is 0.4 - 1 mm (0.016 - 0.04 in).
- The overlap length of both ends of sealant bead is 3 - 5 mm (0.12 - 0.20 in).





e. With shifter lever A (1) held in the position shown, temporarily assemble transaxle case to clutch housing.

CAUTION:
Do not damage striking rod oil seal.

NOTE:
Make sure to hold shifter lever A in the position shown. Otherwise transaxle case cannot be installed to clutch housing.





f. While rotating shifter lever A (1) in the direction of the arrow shown, assemble transaxle case to clutch housing.










g. Accessing from the bore plug hole, expand snap ring at mainshaft rear bearing so that the ring catches the periphery of mainshaft rear bearing.
h. Temporarily tighten transaxle case bolts.





i. Shift the shifter lever A (1) to 2nd gear position.

NOTE:
- The 2nd gear position is attained when shifter lever A is in the position shown.





- When transaxle is shifted to the 2nd gear position, mainshaft assembly is lifted.
j. Seat snap ring in the groove on mainshaft rear bearing. If snap ring is not seated in the groove on mainshaft rear bearing, remove transaxle case and repeat the procedure from step d.





k. Tighten transaxle case bolts to the specified torque.





l. Shift the shifter lever A (1) to neutral position.

NOTE:
The neutral position is attained when shifter lever A is in the position shown.





27. Install bore plug to transaxle case using Tool.






CAUTION:
Do not reuse bore plug.






28. Install selector lever to transaxle case and then install retaining pin to selector lever.

CAUTION:
- Do not reuse retaining pin.
- Assemble retaining pin from the direction shown by the arrow until it becomes flush with the end surface of selector lever.
29. Install guide bolt following the procedures below.
a. Shift the shifter lever A and selector lever to neutral position.





b. Visually confirm from the guide bolt hole (C) that the lever is securely set to neutral position (A). If it is not in the neutral position, repeat the procedure from step a.






CAUTION:
The guide groove (D) of striking rod assembly will be damaged when assembling guide bolt with the lever is in except neutral position (B).
c. Check continuity between terminals of park/neutral position
(PNP) switch to confirm it in the neutral position. If it is not in the neutral position, remove park/neutral position (PNP) switch and repeat the procedure from step a. RS6F52A.





d. Install guide bolt to transaxle case and then tighten guide bolt to the specified torque.

CAUTION:
Do not reuse guide bolt.





30. Apply recommended sealant to threads of park/neutral position
(PNP) switch (1). Then install it to transaxle case and tighten to the specified torque.
- Use Genuine Silicone RTV or an equivalent. Recommended Chemical Products And Sealants.

CAUTION:
Remove old sealant and oil adhering to threads.
31. Install plunger to transaxle case.
32. Apply recommended sealant to threads of back-up lamp switch
(2). Then install it to transaxle case and tighten to the specified torque.
- Use Genuine Silicone RTV or an equivalent. Recommended Chemical Products And Sealants.

CAUTION:
Remove old sealant and oil adhering to threads.
33. Install air breather tube (3) to transaxle case.

CAUTION:
- Do not reuse air breather tube.
- Assemble air breather tube until its collar element contacts with transaxle case.





34. Install gasket onto plug and then install them into transaxle case. Tighten plug to the specified torque.

CAUTION:
Do not reuse gasket.





35. Install gasket onto drain plug and then install them into clutch housing. Tighten drain plug to the specified torque.

CAUTION:
Do not reuse gasket.





36. Install O-ring onto plug and then install it into clutch housing.
Tighten bolt to the specified torque.

CAUTION:
- Do not reuse O-ring.
- After oil is filled, tighten bolt to specified torque.

ADJUSTMENT

Differential Side Bearing Preload






- When adjusting differential side bearing preload, select adjusting shim for differential side bearing. To select adjusting shim, measure clearance (L) between transaxle case and differential side bearing outer race. Available Shims.

CAUTION:
Up to 2 adjusting shims can be selected.
- Calculate dimension (L) (thickness of adjusting shim) using the following procedure to satisfy specification of preload for differential side bearing.










1. Using a depth micrometer and straightedge, measure dimension
(L1) between transaxle case end face and mounting face of adjusting shim.
2. Install differential side bearing outer race onto differential side bearing on final gear side. Holding lightly differential side bearing outer race horizontally by hand, rotate final gear five times or more (for smooth movement of bearing roller).





3. Using a depth micrometer and straightedge as shown, measure dimension (L2) between differential side bearing outer race and clutch housing end face.

CAUTION:
L2: Measure at 4 point by approximately 90 degrees and use the average value.





4. Install selected differential side bearing adjusting shim and then install differential side bearing outer race (transaxle case side) using the Tool.






CAUTION:
Replace differential side bearing and differential side bearing outer race as a set.

Reverse Idler Gear End Play





- When adjusting reverse idler gear end play, select adjusting shim for reverse idler gear. To select adjusting shim (1), measure clearance between transaxle case (2) and reverse idler gear (rear) (3). Available Adjusting Shims.

CAUTION:
Only 1 adjusting shim can be selected.
- Calculate dimension (Q) (thickness of adjusting shim) using the following procedure to satisfy specification of end play for reverse idler gear.










1. Using a depth micrometer and straightedge, measure dimension
(Q1) between transaxle case end face and mounting face of adjusting shim.





2. Using a depth micrometer and straightedge as shown, measure dimension (Q2) between clutch housing (1) end face and end face of reverse idler gear (rear) (2).

CAUTION:
Q2: Measure at 4 point by approximately 90 degrees and use the average value.
3. Install selected reverse idler gear adjusting shim onto reverse idler gear (rear).

Input Shaft End Play





- When adjusting input shaft end play, select adjusting shim for input shaft rear bearing. To select adjusting shim, measure clearance between transaxle case and input shaft rear bearing. Available Adjusting Shims.

CAUTION:
Only 1 adjusting shim can be selected.
- Calculate dimension (O) (thickness of adjusting shim) using the following procedure to satisfy specification of end play for input shaft rear bearing.











1. Using a depth micrometer and straightedge, measure dimension
(O1) between transaxle case end face and mounting face of adjusting shim.

CAUTION:
O1: Measure at 4 point by approximately 90 degrees and use the average value.





2. Using a depth micrometer and straightedge as shown, measure dimension (O2) between clutch housing end face and end face of input shaft rear bearing.

CAUTION:
O2: Measure at 4 point by approximately 90 degrees and use the average value.
3. Install selected input shaft rear bearing adjusting shim onto input shaft.

Striking rod End Play





- When adjusting striking rod end play, select adjusting shim (1) for striking rod (2). To select adjusting shim, measure clearance between transaxle case (3) and striking rod shim (4). Available Adjusting Shims.

CAUTION:
Only 1 adjusting shim can be selected.
- Calculate dimension (R) (thickness of adjusting shim) using the following procedure to satisfy specification of end play for striking rod.










1. Using a depth micrometer (A) and straightedge (B), measure dimension (R1) between transaxle case (1) end face and mounting face of adjusting shim.

CAUTION:
R1: Measure at 4 point by approximately 90 degrees and use the average value.





2. Using a depth micrometer (A) and straightedge (B) as shown, measure dimension (R2) between clutch housing (1) end face and end face of striking rod shim (2).

CAUTION:
- R2: Measure at 4 point by approximately 90 degrees and use the average value.
- When measuring, be careful for the inclination of striking rod assembly and striking rod shim.
3. Install selected striking rod adjusting shim onto striking rod assembly.
Mainshaft End Play





- When adjusting mainshaft end play, select adjusting shim (1) for mainshaft rear bearing (2). To select adjusting shim, measure clearance (M) between transaxle case (3) and dummy adjusting shim (4) on mainshaft rear bearing. Available Adjusting Shims.






CAUTION:
Only 1 adjusting shim can be selected.
- Calculate dimension (P) (thickness of adjusting shim) using the following procedure to satisfy specification of end play for mainshaft rear bearing.






1. Install transaxle case following the procedures below.





a. Temporarily install snap ring of mainshaft rear bearing into transaxle case.

CAUTION:
Do not reuse snap ring.





b. Install dummy adjusting shim (1) to mainshaft assembly.





c. With shifter lever A (1) held in the position shown, temporarily assemble transaxle case to clutch housing.

CAUTION:
Do not damage striking rod oil seal.

NOTE:
Make sure to hold shifter lever A in the position shown. Otherwise transaxle case cannot be installed to clutch housing.





d. While rotating shifter lever A (1) in the direction of the arrow shown, assemble transaxle case to clutch housing.










e. Accessing from the bore plug hole, expand snap ring at mainshaft rear bearing so that the ring catches the periphery of mainshaft rear bearing.
f. Temporarily tighten transaxle case bolts.





2. Shift the shifter lever A to 2nd gear position.

NOTE:
- The 2nd gear position is attained when shifter lever A (1) is in the position shown.





- When transaxle is shifted to the 2nd gear position, mainshaft assembly (1) is lifted.
3. Seat snap ring in the groove on mainshaft rear bearing. If snap ring is not seated in the groove on mainshaft rear bearing, remove transaxle case and repeat the procedure 1 from step c.
4. Shift the shifter lever A to 1st gear position, and then shift it to 2nd gear position. Repeat 3 times.

NOTE:
- The mainshaft rear bearing position will be stabilized by shifting between 1st gear position and 2nd gear position alternately.





- The 1st gear position is attained when shifter lever A (1) is in the position shown.





- When transaxle is shifted to the 1st gear position, mainshaft assembly (1) is declined.





5. Set the dial indicator (A) to dummy adjusting shim (1) through the bore plug hole.










6. Shift the shifter lever A (1) to 2nd gear position (A), and then rotate it in the direction of the arrow (C) shown until it stops.
Using this position as the reference point, measure the amount of movement when shifting shifter lever A to 1st gear position (B) and rotating it in the direction of the arrow (D) shown until it stops. This measurement is the (M) dimension.
7. When measurement (M) is 0 - 0.06 mm (0 - 0.0024 in), adjustment terminates, and the dummy adjusting shim becomes regular adjusting shim. Select adjusting shim from the computed expressions when measurement (M) is over 0.06 mm (0.0024 in).
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