Inspect the input shaft bushing (7120)
assembly for misalignment and press fit condition in crankshaft (6303)
.
Visibly inspect the input shaft bushing surfaces (needle rollers and
transmission input shaft (7017)
) for scoring, worn or broken rollers, inadequate grease
and discoloration due to heating.
Check bearing's seal condition. There should be no visible grease leakage
on the main drive gear bearing retainer (7050)
or crankshaft
.