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Home >> Subaru >> 2017 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Lubrication System (2.5L)) >> Oil Pipe >> Installation
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Oil Pipe: Installation

WARNING: This page is about a different variant/trim than selected.
  1. Inspect the union bolt with filter. <Ref. to INSPECTING UNION BOLT WITH FILTER , INSPECTION, Oil Pipe.>
  2. Install the oil pipe.
    NOTE:
    • Be careful of the install location of the union bolt; the location will differ depending on the presence of filter.
    • Use a new gasket.

    Tightening torque: 

    T1: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    T2: 29 N.m (3.0 kgf-m, 21.4 ft-lb) 

    Fig 1: Oil Pipe With Torque Specifications
    G11574040Courtesy of SUBARU OF AMERICA, INC.
  3. Install the timing belt cover No. 2 LH.

    Tightening torque: 

    5 N.m (0.5 kgf-m, 3.7 ft-lb) 

    Fig 2: Locating Timing Belt Cover No. 2 LH Bolts
    G08539489Courtesy of SUBARU OF AMERICA, INC.
  4. Install the cam sprocket LH. <Ref. to INSTALLATION , Cam Sprocket.>
  5. Install the timing belt. <Ref. to TIMING BELT , INSTALLATION, Timing Belt.>
  6. Install the timing belt cover. <Ref. to INSTALLATION , Timing Belt Cover.>
  7. Install the crank pulley. <Ref. to INSTALLATION , Crank Pulley.>
  8. Install the V-belts. <Ref. to INSTALLATION , V-belt.>
  9. Install the radiator main fan and the radiator sub fan. <Ref. to INSTALLATION , Radiator Main Fan and Fan Motor.> <Ref. to INSTALLATION , Radiator Sub Fan and Fan Motor.>
  10. Install the water tank pipe assembly and water pipe assembly. (Oil pipe RH only)

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 3: Installing Water Tank Pipe Assembly And Water Pipe Assembly
    G11574042Courtesy of SUBARU OF AMERICA, INC.
  11. Install the secondary air pump. (Oil pipe LH only) <Ref. to INSTALLATION , Secondary Air Pump.>
  12. Install the intake manifold. <Ref. to INSTALLATION , Intake Manifold.>
  13. Install the turbocharger oil pipe.

    Tightening torque: 

    T1: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    T2: 29 N.m (3.0 kgf-m, 21.4 ft-lb) 

    Fig 4: Turbocharger Oil Pipe With Torque Specifications
    G11574043Courtesy of SUBARU OF AMERICA, INC.
  14. Install the turbocharger stay.

    Tightening torque: 

    T1: 33 N.m (3.4 kgf-m, 24.3 ft-lb) 

    T2: 42.5 N.m (4.3 kgf-m, 31.3 ft-lb) 

    Fig 5: Turbocharger Stay Bolts With Torque Specifications
    G08539602Courtesy of SUBARU OF AMERICA, INC.
  15. Temporarily tighten the bolts and flare nuts which secure the oil inlet pipe to the turbocharger.
    NOTE: Use a new gasket.
    Fig 6: Locating Turbocharger Oil Inlet Pipe Bolts And Flare Nuts
    G08539590Courtesy of SUBARU OF AMERICA, INC.
  16. Tighten the union bolts and flare nuts which secure the oil inlet pipe to the turbocharger.
    CAUTION: In order to prevent damaging the oil pipe on the cylinder head side, fix the section (a) shown in the figure when tightening the oil inlet pipe flare nut, and avoid the part from rotating together while tightening the nut.

    Tightening torque: 

    T1: 16 N.m (1.6 kgf-m, 11.8 ft-lb) 

    T2: 20 N.m (2.0 kgf-m, 14.8 ft-lb) 

    Fig 7: Installing Oil Pipe
    G08539589Courtesy of SUBARU OF AMERICA, INC.
    Fig 8: Turbocharger Oil Inlet Pipe Union Bolts And Flare Nuts With Torque Specifications
    G08539605Courtesy of SUBARU OF AMERICA, INC.
  17. Attach the turbocharger upper cover.

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb) 

    Fig 9: Attaching Turbocharger Upper Cover
    G08539588Courtesy of SUBARU OF AMERICA, INC.
  18. Install the intercooler. <Ref. to INSTALLATION , Intercooler.>
  19. Connect the battery ground terminal.
  20. Fill engine coolant. <Ref. to FILLING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant.>
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