Exploded View

Fig 1: Exploded View Of Countershaft Disassembly With Torque Specifications

Courtesy of AMERICAN HONDA MOTOR CO., INC.

NOTE: Refer to the Exploded View as needed during the following procedure.

Cut the lock tab (A) of the countershaft locknut (B) using a chisel (C).
NOTE: Keep all of the chiseled particles out of the countershaft.

Fig 2: Cutting Lock Tab Of Countershaft Locknut Using Chisel
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Hold the countershaft with a wrench and a vise securely, loosen the locknut, and remove it. The locknut has left-hand threads.

Fig 3: Removing Locknut
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Place the countershaft 5th gear (A) on press bases (B), and place a shaft protector (C) between the countershaft (D) and a press to prevent damaging the countershaft.

Fig 4: Pressing Countershaft Out Of Press-Fitted Bearing And Press-Fitted Reverse Selector Hub
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Press the countershaft out of the press-fitted bearing (E) and the press-fitted reverse selector hub, and remove the countershaft while holding the underside of the countershaft. The countershaft falls down when pressing the countershaft out of the press-fitted reverse selector hub. Some reverse selector hubs are not press-fitted, and the countershaft falls down when pressing the countershaft out of press-fitted bearing.
Remove the remaining parts from the countershaft.
Inspect the bearing for galling and rough movement.
Check the shaft bearing surfaces for scoring and excessive wear, and check the shaft splines for excessive wear and damage.
NOTE: If the countershaft is worn or damaged, replace the countershaft with the same letter (A, B, or C) for identification as the identifying letter on the final driven gear.
Check the idler gear axial clearance and the 4th gear axial clearance (see COUNTERSHAFT IDLER GEAR AND 4TH GEAR AXIAL CLEARANCE INSPECTION ).