Exploded View

Fig 1: Exploded View Of Countershaft With Torque Specifications

Courtesy of AMERICAN HONDA MOTOR CO., INC.

NOTE: Refer to the EXPLODED VIEW as needed during the following procedure.

Using a chisel, cut the lock tab (A) off the countershaft locknut (B).
NOTE: Keep all of the chiseled particles out of the countershaft.

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

Fig 3: Loosening Countershaft Locknut Using Wrench And Vise
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Place the countershaft 5th gear (A) on press bases (B) and place a spacer (C) between the countershaft (D) and the press to prevent damaging the countershaft.

Fig 4: Identifying Mainshaft 5th Gear And Press
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Support the bottom of the countershaft with one hand, then press the countershaft out of the press-fitted bearing (E) and the press-fitted reverse selector hub. Some reverse selector hubs are not press-fitted, remove the countershaft out of the 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 4th gear axial clearance (see COUNTERSHAFT IDLER GEAR AND 4TH GEAR AXIAL CLEARANCE INSPECTION ).