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Power Steering Pump: Disassembly

  1. Mount power steering pump in vise. Remove union from rear housing. Remove reservoir from pump (if equipped). Index mark front and rear housings for reassembly reference. Remove front housing bolts.
  2. Tap off front housing with plastic mallet. Be careful that vane plates, rotor and cam plate do not fall out. Remove ring cam, rotor and vane plates. Clamp front housing in a vise. Using chisel, pry off oil seal.
  3. Remove snap ring. With plastic mallet, lightly tap the rotor shaft out of front housing and tap bottom of rear housing. Remove rear plate and spring.
  4. Temporarily install a bolt to plug. Push bolt and remove snap ring. Pull out bolt and remove plug. Remove spring and control valve by hand.
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