Caution: Wear safety glasses in order to avoid eye damage.
Important: The balance shaft and the balance shaft front bearing are serviced only as an assembly. Do not remove the balance shaft front bearing from the balance shaft.
- Clean the following components in cleaning solvent:
| • | The balance shaft retainer (2) |
| • | The balance shaft rear bearing |
| • | The balance shaft driven gear (4) |
| • | The balance shaft drive gear |
- Dry the following components with compressed air:
| • | The balance shaft retainer (2) |
| • | The balance shaft rear bearing |
| • | The balance shaft driven gear (4) |
| • | The balance shaft drive gear |
- Inspect the balance shaft bearings for the following:
| • | Front ball bearing for damage or wear |
| • | Front ball bearing for smoothness of operation |
| • | Rear sleeve bearing for wear, scoring, or other damage |
- Inspect the balance shaft (1) for the following:
| • | Wear or scoring on the rear bearing journal |
| • | Damaged bolt hole threads |
| • | Damage to the balance shaft driven gear locator pin |
- Inspect the balance shaft retainer (2) for wear or damage.
- Inspect the balance shaft retainer bolts (3) for damaged threads.
- Inspect the driven gear (4) for the following:
| • | Excessive wear or damage |
| • | Nicks, burrs, or scoring |
- Inspect the driven gear bolt (5) for damaged threads.
- Inspect the balance shaft drive gear for the following:
| • | Excessive wear or damage |
| • | Nicks, burrs, or scoring |
