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Home >> Subaru >> 2018 >> WRX STI Limited >> Repair and Diagnosis >> Engine Mechanical >> Engine Lubrication System (STI) >> Oil Pipe >> Removal

Oil Pipe: Removal

  1. Disconnect the ground cable from battery.
  2. Remove the intercooler. Ref. to INTAKE (INDUCTION) (STI)>Intercooler>REMOVAL .
  3. Remove the turbocharger upper cover.
    G08539588
  4. Remove the oil inlet pipe from the turbocharger.
    CAUTION: In order to prevent damaging the oil pipe on the cylinder head side, fix the part (a) displayed in the image when loosing the oil inlet pipe flare nut, and avoid the part from rotating together while loosening the nut.
    G08539589
    G08539590
  5. Remove the turbocharger stay.
    G08539591
  6. Remove the turbocharger oil pipe.
    G12438117
  7. Drain engine coolant. Ref. to COOLING(STI)>Engine Coolant>REPLACEMENT>DRAINING OF ENGINE COOLANT .
  8. Remove the intake manifold. Ref. to FUEL INJECTION (FUEL SYSTEMS) (STI)>Intake Manifold>REMOVAL .
  9. Remove the secondary air pump. (Oil pipe LH only) Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (STI)>Secondary Air Pump>REMOVAL .
  10. Remove the bolt securing the water tank pipe assembly, and place the water tank pipe assembly aside so that it does not interfere with the work. (Oil pipe RH only)
  11. Remove the water pipe assembly. (Oil pipe RH only)
    NOTE: Do not remove the radiator inlet hose and heater outlet hose.
    G12438118
  12. Remove the radiator main fan and radiator sub fan. Ref. to COOLING(STI)>Radiator Main Fan and Fan Motor>REMOVAL . Ref. to COOLING(STI)>Radiator Sub Fan and Fan Motor>REMOVAL .
  13. Remove the V-belts. Ref. to MECHANICAL(STI)>V-belt>REMOVAL .
  14. Remove the crank pulley. Ref. to MECHANICAL(STI)>Crank Pulley>REMOVAL .
  15. Remove the timing belt cover. Ref. to MECHANICAL(STI)>Timing Belt Cover>REMOVAL .
  16. Remove the timing belt. Ref. to MECHANICAL(STI)>Timing Belt>REMOVAL .
  17. Remove the cam sprocket LH. Ref. to MECHANICAL(STI)>Cam Sprocket>REMOVAL .
  18. Remove the timing belt cover No. 2 LH.
    G08539489
  19. Remove the oil pipe.
    G12438120
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