Exploded View

Fig 1: Exploded View Of Countershaft Assembly Components

Courtesy of AMERICAN HONDA MOTOR CO., INC.

NOTE: Refer to Fig 1 as needed the following procedure.

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

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

Fig 3: Loosening Lock Nut
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Place 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: Placing Shaft Protector Between Countershaft
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Press the countershaft out of press-fitted bearing (E) and 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 shaft splines for excessive wear and damage.
Check the idler gear axial clearance and 4th gear axial clearance (see COUNTERSHAFT IDLER GEAR AND 4th GEAR AXIAL CLEARANCE INSPECTION ).