Countershaft Inspection

Inspect the gear and bearing surfaces for wear and damage, then measure the countershaft at points A, B, and C. If any part of the countershaft is less than the service limit, replace it.
Standard:

A (Ball bearing surface): 24.980-24.993 mm
1. (0.9835-0.9840 in.)
B (Needle bearing surface): 37.984-38.000 mm
1. (1.4954-1.4961 in.)
C (Needle bearing surface): 34.000-34.015 mm
1. (1.3386-1.3392 in.)
Service Limit: A: 24.93 mm (0.981 in.)
1. B: 37.934 mm (1.4935 in.)
2. C: 33.95 mm (1.337 in.)
Fig 1: Inspecting Countershaft
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Inspect the runout by supporting both ends of the countershaft. Then rotate the countershaft two complete turns while measuring with a dial gauge. If the runout exceeds the service limit, replace the countershaft.
Standard: 0.02 mm (0.001 in.) max.

Service Limit: 0.05 mm (0.002 in.)

Fig 2: Measuring Countershaft Runout
Courtesy of AMERICAN HONDA MOTOR CO., INC.