Oil Pump: Disassembly

WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

Remove the relief valve as follows:
1. Remove cotter pin. Drill a 3.175 mm (1/8 inch) hole into the relief valve retainer cap and insert a self-threading sheet metal screw.
2. Clamp screw into a vise and while supporting oil pump, remove cap by tapping pump body using a soft hammer. Discard retainer cap and remove spring and relief valve (Fig 1).
  
  Fig 1: Identifying Oil Pressure Relief Valve
  Courtesy of DAIMLERCHRYSLER CORP.
Remove oil pump cover (Fig 2).

Fig 2: Removing Oil Pump Assembly
Courtesy of DAIMLERCHRYSLER CORP.
Remove pump outer rotor and inner rotor with shaft (Fig 2).
Wash all parts in a suitable solvent and inspect carefully for damage or wear.