Countershaft Inspection

Countershaft Inspection





1. Inspect the oil passage, gear, and bearing surfaces for wear and damage, then measure the countershaft at points A, B, C, and D, If any part of the countershaft is less than the service limit, replace it.
Standard:
A Ball bearing surface (transmission housing side): 30.002 - 30.015 mm (1.1812 - 1.1817 inch)
B Distance collar surface: 42.975 - 42.991 mm (1.6919 - 1.6926 inch)
C Countershaft reverse gear surface: 45.934 - 45.950 mm (1.8084 - 1.8091 inch)
D Needle bearing surface (clutch housing side): 43.974 - 43.990 mm (1.7313 - 1.7319 inch)
Service Limit:
A: 29.95 mm (1.179 inch)
B: 42.92 mm (1.690 inch)
C: 45.88 mm (1.806 inch)
D: 43.92 mm (1.729 inch)





2. 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 inch) max.
Service Limit: 0.05 mm (0.002 inch)