Power Steering Pump: Disassembly

1. Remove suction port union and "O" ring. See Fig 1. Remove gear lock nut, drive gear and woodruff key. Remove pressure port union, "O" ring, flow control valve and spring. Remove snap ring from rear pump housing. Remove rear pump housing and "O" ring.
2. Remove wave washer from rear plate. Remove rear plate and "O" ring. Taking care not to scratch components, remove vane plates, cam ring and rotor. Remove front plate and "O" ring. Remove longer straight pin from front housing. Remove snap ring. Using plastic mallet, tap pump shaft from front housing.
3. Remove pump shaft snap ring and bearing if necessary. Remove oil seal from front housing if necessary.

Fig 1: Exploded View Of Power Steering Pump

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