Oil Pump: Inspection
- Inspect components for damage. Ensure relief valve slides freely in bore. Using feeler gauge, measure clearance between outer gear and oil pump housing. Replace pump assembly if clearance exceeds specification. See OIL PUMP SPECIFICATIONS table.
- With all gears in oil pump housing, measure outer gear-to-inner gear clearance. Replace oil pump assembly if clearance exceeds specification. See OIL PUMP SPECIFICATIONS table.
- With all gears in oil pump housing, place straightedge across oil pump housing. Measure gear end clearance between both gears and straightedge. Replace oil pump assembly if clearance exceeds specification. See OIL PUMP SPECIFICATIONS table.
OIL PUMP SPECIFICATIONS
| Application | In. (mm) | |
|---|---|---|
| Gear End Clearance | ||
| Standard | .001-.003 (.03-.08) | |
| Wear Limit | .004 (.10) | |
| Outer Gear-To-Housing Clearance | ||
| Standard | .004-.007 (.10-.18) | |
| Wear Limit | .008 (.20) | |
| Outer Gear-To-Inner Gear Clearance | ||
| Standard | .0024-.0087 (.06-.22) | |
| Wear Limit | .0118 (.29) | |