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Home >> Subaru >> 2018 >> WRX STI >> Repair and Diagnosis >> Steering >> Power Steering >> Power Steering System >> Oil Pump >> Installation

Oil Pump: Installation

  1. Install the oil pump to bracket.
  2. Tighten the bolts which hold the oil pump to the bracket.

    Tightening Torque: 

    16 N.m (1.6 kgf-m, 11.8 ft-lb)

    G07663993

    Tightening Torque: 

    48 N.m (4.9 kgf-m, 35.4 ft-lb)

    G05343622
  3. Attach the installation bolts of the power steering pump bracket.

    Tightening Torque: 

    Refer to "COMPONENT" of "General Description". Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>General Description>COMPONENT>OIL PUMP 

    G05343613
  4. Connect the pressure hose and suction hose.
    CAUTION: Be careful when installing; If the hose is twisted it may come into contact with other parts.

    Tightening Torque: 

    Eyebolt

    40 N.m (4.1 kgf-m, 29.5 ft-lb)

    G12448758
  5. Connect the power steering pump switch to the connector.
  6. After installing the oil pump, fill the oil pump with fluid while rotating the pulley by hand and bleed the air from the oil pump.
    CAUTION: Always fill the oil pump with the fluid to prevent abnormal noise and seizure of the oil pump.
  7. Install the V-belts (front side belt). Ref. to MECHANICAL (STI)>V-belt>INSTALLATION
  8. Connect the battery ground terminal.
  9. Fill with the specified power steering fluid. Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>Power Steering Fluid 
    CAUTION: Never start the engine before filling with fluid; otherwise the vane pump may become seized.