Oil Pump: Disassembly

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE RELIEF VALVE
1. Using snap ring pliers, remove the snap ring.
2. Remove the retainer, the spring and the relief valve.
  
  Fig 1: Removing Relief Valve
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE DRIVE AND DRIVEN ROTORS

Remove the 10 screws, the oil pump body cover, the drive and driven rotors.

Fig 2: Removing Drive & Driven Rotors