Removal & Disassembly
WARNING: This page is about a different variant/trim than selected.
- Remove timing belt. See TIMING BELT under REMOVAL & INSTALLATION. On PT Cruiser, remove timing belt rear cover. On all vehicles, remove oil pan. See OIL PAN under REMOVAL & INSTALLATION. On PT Cruiser, remove crankshaft sprocket using Sprocket Puller (6793) and Puller Insert (C4685). On all vehicles, remove oil pump bolts and oil pump.
- Remove relief valve threaded plug, gasket, spring and valve. See Fig 1. Remove oil pump cover screws, and lift off cover.
- Remove pump rotors. Wash all parts in solvent and inspect for wear or damage. See OIL PUMP SPECIFICATIONS table.
OIL PUMP SPECIFICATIONS
| Application | In. (mm) | |
|---|---|---|
| Gear Side Clearance | ||
| Drive Gear | .004 (.10) | |
| Driven Gear | .004 (.10) | |
| Gear-To-Front Cover Clearance | ||
| Drive & Driven Gear | .001 (.025) | |
| Inner Rotor Thickness (Minimum) | .370 (9.40) | |
| Outer Rotor | ||
| Clearance (Maximum) | .015 (.39) | |
| Diameter (Minimum) | 3.148 (79.95) | |
| Thickness (Minimum) | .370 (9.40) | |
| Tip Clearance (Maximum) | .008 (.20) | |
| Oil Pressure | ||
| At Curb Idle | 4 psi (.28 kg/cm2 ) | |
| At 3000 RPM | 25-80 psi (1.75-5.62 kg/cm2 ) | |
NOTE:
Install inner rotor with chamfer facing cast iron oil pump cover.