2021 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE

Engine Assembly: Installation

  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)

    G13224279Courtesy 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.

    Tightening torque: 

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

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

    Tightening torque: 

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

    G08316854Courtesy 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.
    G13224279Courtesy 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.
      G13224276Courtesy 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)

      G13224275Courtesy of SUBARU OF AMERICA, INC.
    3. Install the plug (B) to the service hole, and connect the connector (A).
      G13224274Courtesy of SUBARU OF AMERICA, INC.
    4. Attach the PCV hose No. 1. Ref. to EMISSION CONTROL TAUX. EMISSION CONTROL DEVICES) (H4DO)>PCV HOSE>INSTALLATION>PCV HOSE NO. 1 .
  11. Install the starter. Ref. to STARTING/CHARGING SYSTEMS (H4DO)>STARTER>INSTALLATION .
  12. Lift up the vehicle.
  13. 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)

    G08316839Courtesy of SUBARU OF AMERICA, INC.
  14. Install the Cross Member support rear RH. Ref. to FRONT SUSPENSION>CROSS MEMBER SUPPORT>INSTALLATION .
  15. Install the nuts which hold the engine mounting to the Cross Member COMPL front.
    CAUTION: Use new nuts.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.