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Home >> Subaru >> 2019 >> WRX Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical System (Except For STI) >> Engine Assembly >> Installation

Engine Assembly: Installation

  1. Install the engine mounting onto the engine.

    Tightening torque: 

    35 N.m (3.6 kgf-m, 25.8 ft-lb)

  2. Apply a small amount of grease to splines of main shaft. (MT model)

    Grease: 

    NICHIMOLY N-130 or equivalent

  3. Position the engine in engine compartment and align it with transmission.
    NOTE: Be careful not to damage adjacent parts or body panels with crank pulley, oil level gauge, etc.
  4. Install the bolts which hold upper side of transmission to engine.

    Tightening torque: 

    50 N.m (5.1 kgf-m, 36.9 ft-lb)

    • CVT model
      G09480221Courtesy of SUBARU OF AMERICA, INC.
    • MT model
    G08316855Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the lifting device and wire ropes.
    G08316851Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the garage jack.
  7. Remove the cushioning material between pitching stopper bracket and transmission case cover. (CVT model)
  8. Install the clip (B) to the pitching stopper bracket, and then install the air breather hose to the clip (B). (CVT model)
  9. Install the bolt (A) which secures the transmission harness stay to the CVT. (CVT model)

    Tightening torque: 

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

    G10266681Courtesy of SUBARU OF AMERICA, INC.
  10. Install the CVTF cooler (with warmer feature) to the CVT. (CVT model)
    1. Temporarily tighten the upper bolt which secures the CVTF cooler (with warmer feature) to the CVT.
    2. Using clip (A), fix the bulkhead harness to the CVTF cooler (with warmer feature).
      G09480214Courtesy of SUBARU OF AMERICA, INC.
    3. Lift up the vehicle.
    4. Install the lower bolt which secures CVTF cooler (with warmer feature) to the CVT.

      Tightening torque: 

      23 N.m (2.3 kgf-m, 17.0 ft-lb)

      G09480207Courtesy of SUBARU OF AMERICA, INC.
    5. Lower the vehicle.
    6. Tighten the upper bolt which secures the CVTF cooler (with warmer feature) to the CVT.

      Tightening torque: 

      23 N.m (2.3 kgf-m, 17.0 ft-lb)

    G09480227Courtesy of SUBARU OF AMERICA, INC.
  11. Install the torque converter assembly to the drive plate. (CVT model)
    1. Remove the ST from converter case.
      NOTE: Be careful not to drop the ST into the converter housing when removing the ST.

      ST 498277200 STOPPER SET 

      G09480213Courtesy of SUBARU OF AMERICA, INC.
    2. Insert the wrench into the crank pulley bolt, and rotate the crank pulley to attach the four bolts securing the torque converter assembly to the drive plate.
      NOTE: Be careful not to drop bolts into the converter housing.

      Tightening torque: 

      25 N.m (2.5 kgf-m, 18.4 ft-lb)

      G10266697Courtesy of SUBARU OF AMERICA, INC.
    3. Fit the plug to service hole.
    G09480211Courtesy of SUBARU OF AMERICA, INC.
  12. Install the starter. Refer to STARTING/CHARGING SYSTEMS (EXCEPT FOR STI)>STARTER>INSTALLATION .
  13. Lift up the vehicle.
  14. Install the bolts and nuts which hold lower side of the transmission to engine.

    Tightening torque: 

    50 N.m (5.1 kgf-m, 36.9 ft-lb)

    • CVT model
      G09480208Courtesy of SUBARU OF AMERICA, INC.
    • MT model
    G08316840Courtesy of SUBARU OF AMERICA, INC.
  15. Install the nuts which hold the engine mounting to the front crossmember.
    NOTE:
    • Make sure that locators (a) of the engine mounting are securely inserted.
    • Use a new nut.

    Tightening torque: 

    60 N.m (6.1 kgf-m, 44.3 ft-lb)

    G10266701Courtesy of SUBARU OF AMERICA, INC.
  16. Connect the ground cable to the oil pipe assembly.

    Tightening torque: 

    7 N.m (0.7 kgf-m, 5.2 ft-lb)

    G12441496Courtesy of SUBARU OF AMERICA, INC.
  17. Set the transmission jack to the transmission. (CVT model)
    NOTE: Be careful that the support plate of transmission jack does not touch the transmission oil pan.
  18. Remove the ST and install the rear crossmember. (CVT model)

    ST 41099YC001 ST REAR MOUNT 

    Tightening torque: 

    T1: 18 N.m (1.8 kgf-m, 13.3 ft-lb)

    T2: 35 N.m (3.6 kgf-m, 25.8 ft-lb)

    T3: 70 N.m (7.1 kgf-m, 51.6 ft-lb)

    G10266703Courtesy of SUBARU OF AMERICA, INC.
  19. Remove the transmission jack. (CVT model)
  20. Install the front exhaust pipe. Refer to EXHAUST (EXCEPT FOR STI)>FRONT EXHAUST PIPE>INSTALLATION .
  21. Install the pitching stopper.

    Tightening torque: 

    T1: 50 N.m (5.1 kgf-m, 36.9 ft-lb)

    T2: 58 N.m (5.9 kgf-m, 42.8 ft-lb)

    G10266704Courtesy of SUBARU OF AMERICA, INC.
  22. Connect the fuel delivery tube and evaporation hose.
    1. Connect the evaporation hose to fuel pipe assembly.
      G09480218Courtesy of SUBARU OF AMERICA, INC.
    2. Connect the quick connector on the fuel delivery tube to the fuel pipe assembly, and fix the fuel delivery tube using clip (A).
      CAUTION:
      • Check that there is no damage or dust on the quick connector. If necessary, clean the seal surface of the pipe.
      • When connecting the quick connector, make sure to insert it all the way in before locking the slider.
      • When it is difficult to lock the slider, check that the connector is fully inserted.
      • After locking the slider, check that the quick connector is securely connected.
      NOTE: Connect the quick connector as shown in the figure.
    G13259006Courtesy of SUBARU OF AMERICA, INC.
    G10266683Courtesy of SUBARU OF AMERICA, INC.
  23. Connect the engine coolant inlet hose and engine coolant outlet hose to the CVTF cooler (with warmer feature) and EGR cooler. (CVT model)
    G10266669Courtesy of SUBARU OF AMERICA, INC.
  24. Connect the heater inlet hose (A) to the water pipe assembly, and connect the heater outlet hose (B) to the water pipe LH.
    NOTE: Be careful not to mix up the heater inlet hose and the heater outlet hose when connecting them.
    G13259009Courtesy of SUBARU OF AMERICA, INC.
    G10266668Courtesy of SUBARU OF AMERICA, INC.
  25. Connect the hose - pressure suction and the hose - pressure discharge to the A/C compressor. Refer to HVAC SYSTEM (HEATER, VENTILATOR AND A/C)>HOSE AND PIPE>INSTALLATION .
  26. Set the generator cord, and fix the generator cord to the fuel pipe protector using clip (C).
  27. Install the generator cord to clip (B), and connect the connector (A) to A/C compressor.
    G11576238Courtesy of SUBARU OF AMERICA, INC.
  28. Using clip (D), fix the generator cord to the generator cord stay, and connect the connector (B) and the terminal (C) to the generator.

    Tightening torque: 

    15.5 N.m (1.6 kgf-m, 11.4 ft-lb)

  29. Connect the connector (A) to the brake vacuum pump.
    G11576193Courtesy of SUBARU OF AMERICA, INC.
  30. Connect the bulkhead harness connector to the engine wiring harness connector.
    G10266665Courtesy of SUBARU OF AMERICA, INC.
  31. Install the brake booster vacuum hose to the clip (D).
    NOTE: If the clip is removed from the intake manifold, install the clip to the position of alignment mark of intake manifold.
  32. Connect sections (A) and (B) of the brake booster vacuum hose to the brake vacuum pump and intake manifold, and install the brake booster vacuum hose to the clip (C).
    G11576191Courtesy of SUBARU OF AMERICA, INC.
  33. Install the radiator. Refer to COOLING (EXCEPT FOR STI)>RADIATOR>INSTALLATION .
  34. Install the intake duct No. 1 and intake duct No. 2. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>INTAKE DUCT>INSTALLATION>INTAKE DUCT NO. 1 . Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>INTAKE DUCT>INSTALLATION>INTAKE DUCT NO. 2 .
  35. Install the ECM. Refer to FUEL INJECTION (FUEL SYSTEMS) (EXCEPT FOR STI)>ENGINE CONTROL MODULE (ECM)>INSTALLATION .
  36. Install the intercooler. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>INTERCOOLER>INSTALLATION .
  37. Install the air intake duct. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>AIR INTAKE DUCT>INSTALLATION .
  38. Connect the ground terminal to battery sensor. Refer to NOTE>NOTE>BATTERY .
  39. Charge the A/C system with refrigerant. Refer to HVAC SYSTEM (HEATER, VENTILATOR AND A/C)>REFRIGERANT CHARGING PROCEDURE>PROCEDURE .
  40. Fill engine coolant. Refer to COOLING (EXCEPT FOR STI)>ENGINE COOLANT>REPLACEMENT>FILLING OF ENGINE COOLANT .
  41. Install the collector cover. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>COLLECTOR COVER>INSTALLATION .
  42. Set the front hood to the normal position. Refer to NOTE>NOTE>FRONT HOOD DAMPER STAY .
  43. Install the striker - front hood. Refer to EXTERIOR BODY PANELS>FRONT HOOD>ASSEMBLY .
  44. Close the front hood.
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