Oil Pump: Disassembly
- Remove pump body "O" ring. Remove pump seal rings. See Fig 1 . Remove stator shaft-to-pump body attaching bolts and separate pump parts. Remove drive gear and driven gear from pump body.
- Measure inside diameter of pump body bushing. Maximum diameter should be 1.504" (38.19 mm). Replace pump body if bushing is not within specification. Measure inside diameter of stator shaft bushing at front and rear of bushing. Maximum diameter at front of bushing should be .08496" (2.16 mm) and 1.0661" (27.08 mm) at rear. Replace stator shaft if bushing is not within specification.
- Measure oil pump clearances. See OIL PUMP CLEARANCE table. Replace pump body and gears if any clearance is greater than specified.
OIL PUMP CLEARANCE
| Application | Clearance | Maximum Allowance - In. (mm) |
|---|---|---|
| Pump Body-To-Drive Gear | Tip | 012 (.30) |
| Pump Body-To-Drive Gear | Body | .012 (.30) |
| Pump Housing-To-Pump-Gear | End | .004(.10) |