Inefficient synchronization
- Synchronizer rings are worn out
Jumping out of gear
- The offset retainer spring is weak or broken
- Worn shift forks or clamps
- Worn synchronizers or gears
Noisy action
- Bearings or gears are worn out
Difficulty shifting gears
- The parts of the selector are worn out
- The synchronizers are worn out
- The gear engagement clamps are worn out
- The clutch is damaged
- The gear shift rod is not adjusted correctly
- Seized needle bearing at the end of the crankshaft