Oil Pump: Inspection
- Disassemble oil pump. See Fig 1. Inspect components for damage. Using straightedge and feeler gauge, measure side clearance between inner rotor and pump body. Check radial clearance between outer rotor and case using feeler gauge.
- Measure free length and tension of oil relief spring. Replace components or entire assembly if not within specification. See OIL PUMP SPECIFICATIONS table.
OIL PUMP SPECIFICATIONS
| Application | In. (mm) | |
|---|---|---|
| Rotor | ||
| Radial Clearance | .0059 (.15) | |
| Side Clearance | .0043 (.11) | |
| Relief Valve | ||
| Relief Spring Free Length | 2.5 (63.5) | |
| Spring Preload | 62.2 Lbs. @ 2.05" (8.6 Kg. @ 52 mm) | |