5B
Input Shaft Assembly Disassembly and Assembly
Reference: Input Shaft, Countershaft and Output Shaft Components:M13A Model
Disassembly
1) Remove snap ring.
2) Remove input shaft front bearing (1) using bearing puller and press.
3) Remove input shaft needle bearing.
4) Remove circlip and then drive out 5th speed synchronizer assembly (2) with 3rd gear (1) from input shaft using bearing puller and press.
CAUTION:
To avoid gear teeth from being damaged, support gear with flat side of bearing puler when removing gear using bearing puller.
5) Remove 3rd gear needle bearing and high speed synchronizer ring.
6) Remove circlip and then drive out high speed synchronizer assembly (2) and 4th gear (1) from input shaft using bearing puller and press.
7) Remove 4th gear needle bearing.
Assembly
Reference: Input Shaft Assembly Inspection:M13A Model
1) Clean all components thoroughly, inspect them for any abnormality and replace with new ones as necessary.
2) To ensure lubrication, air blow oil holes (1) and make sure that they are free from any obstruction.
3) Drive in input shaft front bearing (1) to input shaft using special tool and press and then install snap ring.
Special Tool
(A) : 09941–74910
4) Apply oil to 4th gear needle bearing, and then install needle bearing and 4th gear to input shaft.
5) Assemble high speed synchronizer sleeve (4) and hub (3) as follows.
a) Fit high speed synchronizer sleeve to hub in specified direction as shown in figure.
b) Insert 3 keys (2) to hub.
c) Set springs (1) at specified position as shown in figure.
Synchronizer key installation position
: A = B
[A]: 4th gear side D: Chamfered side
C: Key way 5. 4th gear
6) Drive in high speed synchronizer assembly (1) using special tool and press and then install circlip.
NOTE:
• While press-fitting sleeve & hub, make sure that synchronizer ring key slots (2) are aligned with keys (3) in sleeve & hub assembly.
• Check free rotation of 4th gear (4) after press fitting sleeve & hub assembly.
Special Tool
(A) : 09913–84510
7) Apply oil to 3rd gear needle bearing, and then install 3rd gear needle bearing (1), high speed synchronizer ring and 3rd gear (2) to input shaft (3).
4. High speed synchronizer assembly
8) Assemble 5th speed synchronizer sleeve (4) and hub (3) as follows.
a) Fit 5th speed synchronizer sleeve to hub in specified direction as shown in figure.
b) Insert 3 keys (2) to hub.
c) Set springs (1) at specified position as shown in figure.
Synchronizer key installation position
: A = B
[A]: 4th gear side D: Chamfered side
C: Key way 5. 4th gear
9) Press-fit 5th speed synchronizer assembly (1) using special tool and press.
NOTE:
• While press-fitting sleeve & hub, make sure that synchronizer ring key slots (2) are aligned with keys (3) in sleeve & hub assembly.
• Check free rotation of 3rd gear (4) after press-fitting sleeve & hub assembly.
Special Tool
(A) : 09913–84510
10) Install input shaft needle bearing and circlip.