Exploded View

Fig 1: Exploded View Of Countershaft Assembly Components With Torque Specifications

Courtesy of AMERICAN HONDA MOTOR CO., INC.

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

Secure the final drive gear part of the countershaft in a bench vise with wood blocks, loosen the lock bolt (A), and remove it. The lock bolt has left-hand threads.
NOTE: After this procedure, remove wood chips that may be stuck to the gear.

Fig 2: Securing Final Drive Gear Part Of Countershaft In Bench Vise
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Place the park gear (A) on press bases (B), and place a spacer (C) between the countershaft (D) and a press to prevent damaging the countershaft.

Fig 3: Placing Spacer Between Countershaft
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the ball bearing (A), 2nd gear (B), the 42.5 mm thrust shim (C), the 5th gear collar (D), the 42.5 x 52.5x2.5 mm thrust washer (E), 5th gear (F), 1st gear (G), the 53 x 57 x 20 mm needle bearing (H), and the park gear (I) using the press.

Fig 4: Identifying Ball Bearing, 2nd Gear, Thrust Shim, 5th Gear Collar
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Inspect the bearing for galling and rough movement.
Inspect the shaft bearing surfaces for scoring and excessive wear, and inspect the shaft splines for excessive wear and damage.
Inspect 1st gear, 2nd gear, 5th gear, and the final drive gear for wear and damage.
Check the countershaft 2nd gear axial clearance and the 5th gear axial clearance (see COUNTERSHAFT 2nd GEAR AND 5th GEAR AXIAL CLEARANCE INSPECTION ), and check the 1st gear one-way clutch (see 1ST GEAR ONE-WAY CLUTCH INSPECTION ).