- Remove timing belt. See «TIMING BELT»(ref-49505-S12092104192001011500000) under REMOVAL & INSTALLATION. Remove crankshaft sprocket from oil pump. Remove oil pan. See «OIL PAN»(ref-49505-S35083052022001011500000) under REMOVAL & INSTALLATION. Remove oil strainer and oil pipe.
- Remove oil cooler assembly. Remove oil pump bolts and oil pump. (Scheme 26) Remove pressure relief valve. Remove oil pump cover. Mark oil pump gears for reassembly reference. Remove oil pump gears. Remove oil seal from oil pump housing.
Note. In colder climates, pressure relief valve may stick, creating excessive oil pressure and causing oil filter to deform and leak. If this condition exists, install NEW pressure relief valve and spring.
Inspection
- Inspect components for damage. Install gears in oil pump housing. Place straightedge across oil pump housing surface.
- Using feeler gauge, measure gear side clearance. Replace components if clearance exceeds specification. See «OIL PUMP SPECIFICATIONS»(ref-49505-S42096300322001011500000) .
- Using feeler gauge, measure side clearance between outside edge of outer gear and oil pump housing. Replace components if clearance exceeds specification. See «OIL PUMP SPECIFICATIONS»(ref-49505-S42096300322001011500000) .
- Assemble gears in oil pump housing. Using feeler gauge, measure clearance between tip of inner gear and tip of outer gear. Replace components if clearance exceeds specification. See OIL PUMP SPECIFICATIONS table.
| Application | In. (mm) | |
|---|---|---|
| Gear Side Clearance | ||
| Standard | .001-.004 (.03-.10) | |
| Wear Limit | .006 (.15) | |
| Outer Gear-To-Oil Pump Housing Clearance | ||
| Standard | .004-.007 (.10-.18) | |
| Wear Limit | .008 (.20) | |
| Gear Tip Clearance | ||
| Standard | .004-.009 (.10-.23) | |
| Wear Limit | .014 (.35) | |
OIL PUMP SPECIFICATIONS
