Oil Pump
- Remove oil pan as previously outlined. Disconnect oil pump outlet pipe and remove oil pump with strainer. Remove strainer, pump cover, plug from cover with relief valve spring and piston and rotors from pump body.
- Thoroughly clean and inspect all components. Check tip clearance, if clearance exceeds 0.008", replace both rotors. Check clearance between drive rotor and cover. Place a straight edge on pump body and insert a feeler gauge between straight edge and drive rotor. If clearance exceeds 0.006", replace rotors or cover.
- Check clearance between outer rotor and pump body. If clearance exceeds 0.008", replace rotors or pump body. Check relief valve piston for wear or signs of seizure. Check relief valve spring (see specifications ).
- To assemble and install, reverse disassembly and removal procedures. Tighten all bolts and nuts to specifications.
OIL PUMP SPECIFICATIONS
| Application | Measurement |
|---|---|
| Rotor Tip Clearance | .0026-.0047" |
| Rotor-to-Cover Clearance | .0012-.0027" |
| Outer Rotor-to-Pump Body Clearance | .004-.006" |
| Relief Valve Spring | |
| Free Length | 1.85" |
| Length Loaded (@ 13.2-14.6 lbs.) | 1.45" |