- Clean the oil pump components in solvent.
Caution: Wear safety glasses in order to avoid eye damage.
- Dry the components with compressed
air.
- Inspect the oil pump for
the following:
| • | Scoring, damage or casting imperfections to the housing (3) |
| • | Damage gears (chipping, galling, or wear) (2) |
| • | Scoring on the top of the gears (1) |
| • | Damaged or scored gear shaft (5) |
| • | Worn driveshaft housing bore |
| • | Damaged or sticking pressure relief valve (minor imperfections
may be removed with a fine oil stone). |
| • | Collapsed or broken pressure relief valve spring |
- If the oil pump is to be reused, install a NEW pressure relief
valve spring.
- During oil pump installation, install a NEW oil pump driveshaft
retainer.
