Oil Pump: Inspection
- Using a feeler gauge, measure clearance between outer rotor and pump body. Measure clearance between inner and outer rotor.
- Lay straightedge over pump body. Insert a feeler gauge between straightedge and rotors and measure clearance over rotors. Replace all worn parts.
- Check free length of relief valve spring. If measurement is less than specified, replace spring.
OIL PUMP SPECIFICATIONS
| Application | In. (mm) |
|---|---|
| Clearance Between Rotors | .005-.008 (.12-.20) |
| Clearance Over Rotors | .002-.004 (.04-.10) |
| Outer Rotor-to-Pump Body | .004-.006 (.10-.15) |
| Spring Free Length | 2.677 (67.99) |