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Power Steering Pump: Reassembly

  1. If shaft seal was removed, install new seal with metal backing facing pump end of shaft. Seat seal properly in shaft hub.
    Fig 1: Installing Dowel Pin and Spring
    G09357764Courtesy of MAZDA MOTORS CORP.
  2. Lubricate new "O" ring with power steering fluid and install in groove on pump body. Install both dowel pins and spring, then insert shaft in housing. Install new "O" ring on pressure plate, then coat plate and "O" ring with power steering fluid. Install pressure plate on dowel pins with recess facing out and press into place. Place cam ring on dowel pins with rotation arrow toward pressure plate.
    Fig 2: Installing Pressure Plate
    G09357765Courtesy of MAZDA MOTORS CORP.
    Fig 3: Cam Ring Locating Mark
    G09357766Courtesy of MAZDA MOTORS CORP.
  3. Coat rotor with gear lubricant and install on shaft with recessed chamfer side of bore toward pressure plate. Install vanes in rotor slots with rounded edge of vanes facing out. Make sure vanes move freely. Install collar and snap ring on splined end of shaft, sliding snap ring down until seated into ring groove.
  4. Lubricate new "O" rings with power steering fluid and install on housing, then install end cover and tighten attaching bolts to specification. Place flow control valve spring and valve in hole, making sure pin end of valve is toward plug. Lubricate new "O" rings and install on plug, then install plug in housing tighten to specification.
  5. Lubricate new "O" rings and install on pressure connector and suction line connector. Tighten pressure connector and suction line connector bolts to specification. Tap Woodruff key into shaft and install pulley on pump.
    TIGHTENING SPECIFICATIONS

    Application Ft.Lbs. (mkg)
    Valve Housing Bolts 29-36 (3.8-5.0)
    Side Cover Bolts 29-36 (3.8-5.0)
    Pitman Arm Nut 108-130 (15-18)
    Pump End Cover Bolts 22-29 (3-4)
    Pump Control Valve Plug 50-72 (7-10)
    Pump Pressure Connector 50-72 (7-10)
    Pump Suction Connector Bolts 5-7 (.7-1.0)
    Application  INCH Lbs. (cmkg) 
    Worm Shaft Initial Preload 5-9.5 (6-11)
    Worm Shaft Final Preload 9-14 (10-16)