LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2021 >> Outback Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical System (2.4L)) >> Engine Assembly >> Installation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Assembly: Installation

WARNING: This page is about a different variant/trim than selected.
  1. Using the ST1, install the ST2 to the engine unit.

    Preparation tool: 

    ST1: BOLT (18363AA050)

    ST2: HANGER (18360AA040)

    Tightening torque: 

    43 N.m (4.4 kgf-m, 31.7 ft-lb)

    G13948829Courtesy of SUBARU OF AMERICA, INC.
  2. Support the engine unit with a lifting device and wire ropes, and remove the engine unit from the engine stand, etc.
  3. Install the engine mounting onto the engine unit.

    Tightening torque: 

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

  4. Place the engine unit 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.
  5. With a lifting device and a garage jack, slowly lower the engine unit.
  6. Install the bolts which hold the upper side of transmission to the engine unit.

    Tightening torque: 

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

    G13948830Courtesy of SUBARU OF AMERICA, INC.
  7. Remove the garage jack.
  8. Remove the lifting device and wire ropes.
  9. Remove the ST1 and ST2 from the engine unit.
    G13948831Courtesy of SUBARU OF AMERICA, INC.
  10. Install the torque converter to drive plate.
    1. Remove the ST from converter case.
      NOTE: Be careful not to drop the ST into the converter housing when removing the ST.
      G13948832Courtesy 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 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)

      G13948833Courtesy of SUBARU OF AMERICA, INC.
    3. Fit the plug to service hole.
    G13948834Courtesy of SUBARU OF AMERICA, INC.
  11. Install the starter, Ref. to STARTING/CHARGING SYSTEMS (H4DOTC)>STARTER>INSTALLATION .
  12. Place the CVTF cooler (with warmer feature) to CVT, and temporarily tighten the upper bolt which secures the CVTF cooler (with warmer feature).
    G13948835Courtesy of SUBARU OF AMERICA, INC.
  13. Lift up the vehicle.
  14. Install the bolts and nuts which hold the lower side of transmission to the engine unit.

    Tightening torque: 

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

    G13948836Courtesy of SUBARU OF AMERICA, INC.
  15. Install the nuts which hold the engine mounting to the crossmember COMPL front.
    CAUTION: Be sure to use a new nut.
    NOTE: Make sure that locators (a) of the engine mounting are securely inserted.

    Tightening torque: 

    90 N.m (9.2 kgf-m, 66.4 ft-lb)

    G13948837Courtesy of SUBARU OF AMERICA, INC.
  16. Connect the ground cord.

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb)

    G13948838Courtesy of SUBARU OF AMERICA, INC.
  17. Install the lower bolt which secures CVTF cooler (with warmer feature) to the CVT and connect the CVTF cooler (with warmer feature) water hose.

    Tightening torque: 

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

    G13948839Courtesy of SUBARU OF AMERICA, INC.
  18. Install the front exhaust pipe.
  19. 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)

    G13948840Courtesy of SUBARU OF AMERICA, INC.
  20. Connect the fuel delivery tube and evaporation hose.
    1. Connect the quick connector on the fuel delivery tube (C) to the fuel pipe, and install clip (B) to the intake manifold assembly.
      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, pull the quick connector body in the removal direction and then push it in the connecting direction, in order to check that the quick connector is securely connected. Always make sure to perform this confirmation ending up with a pushing in.
      NOTE: Connect the quick connector as shown in the figure.
      G13948841Courtesy of SUBARU OF AMERICA, INC.
    2. Connect the evaporation hose (A) to the vacuum pipe assembly.
    G13948842Courtesy of SUBARU OF AMERICA, INC.
  21. Place the vacuum pipe, and connect the brake booster vacuum hose (B) to the brake vacuum pump.
    NOTE: When connecting the brake booster vacuum hose, align the alignment marks (a) on the brake booster vacuum hose and the vacuum pump.
    G13948843Courtesy of SUBARU OF AMERICA, INC.
  22. Connect the water hose (A) to the CVTF cooler (with warmer feature).
    G13948844Courtesy of SUBARU OF AMERICA, INC.
  23. Install the pitching stopper. Ref. to PITCHING STOPPER .
  24. Install the bolts securing the vacuum pipe to the engine rear hanger.

    Tightening torque: 

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

  25. Install the clip (D) and clip (E), and connect the connector (A), connector (B) and connector (C).
    G13948845Courtesy of SUBARU OF AMERICA, INC.
  26. Connect the heater inlet hose (A) and the heater outlet hose (B).
    NOTE: Be careful not to mix up the heater inlet hose and the heater outlet hose when connecting them.
    G13948846Courtesy of SUBARU OF AMERICA, INC.
    G13948847Courtesy of SUBARU OF AMERICA, INC.
  27. Set the engine wiring harness and secure the engine wiring harness to the bracket with the claw.
    G13948848Courtesy of SUBARU OF AMERICA, INC.
  28. Install the engine wiring harness to the clip (A), and connect the connector (B).
  29. Connect the connector (C) and connector (D) in numerical order shown in figure.
    G13948849Courtesy of SUBARU OF AMERICA, INC.
  30. Set the battery cable assembly, and secure the battery cable assembly with claw (B) and clip (A).
    G13948850Courtesy of SUBARU OF AMERICA, INC.
  31. Connect the hose - pressure suction and the hose - pressure discharge to the A/C compressor. Ref. to AIR CONDITIONER>HOSE AND PIPE>INSTALLATION .
  32. Secure the battery cable assembly with the clip (A) and clip (B).
  33. Connect the connector (C), connector (D), connector (E), and the terminal (F).

    Tightening torque: 

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

    G13948851Courtesy of SUBARU OF AMERICA, INC.
  34. Install the intercooler, Ref. to INTAKE (INDUCTION) (H4DOTC)>INTERCOOLER>INSTALLATION .
  35. Install the intake duct No. 1 and intake duct No. 2.

    Intake duct No. 1: 

    Ref. to INTAKE DUCT NO. 1 .

    Intake duct No. 2: 

    Ref. to INTAKE DUCT NO. 2 .

  36. Install the crossmember support rear RH. Ref. to FRONT SUSPENSION>CROSSMEMBER SUPPORT>INSTALLATION .
  37. Install the radiator. Ref. to COOLING (H4DOTC)>RADIATOR>INSTALLATION .
  38. Connect the battery ground terminal. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  39. Install the fuel filler cap, and close the fuel filler lid.
  40. Fill engine coolant. Ref. to COOLING (H4DOTC)>ENGINE COOLANT>REPLACEMENT>FILLING OF ENGINE COOLANT .
  41. Set the panel COMPL front hood to the normal position. Ref. to REPAIR CONTENTS>NOTE>STAY ASSEMBLY FRONT HOOD .
  42. Install the striker assembly front hood. Ref. to EXTERIOR BODY PANELS>FRONT HOOD>ASSEMBLY .
  43. Close the panel COMPL front hood.