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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical System (2.0L) >> Rocker Cover >> Installation >> Rocker Cover LH

Rocker Cover LH

  1. Install the #2 spark plug pipe gasket and #4 spark plug pipe gasket to the #2 spark plug pipe and #4 spark plug pipe.
    NOTE:
    • Use a new #2 spark plug pipe gasket and #4 spark plug pipe gasket.
    • Apply a light coat of engine oil to the #2 spark plug pipe gasket and #4 spark plug pipe gasket, and insert them onto the spark plug pipe edge (A).
    G09480382Courtesy of SUBARU OF AMERICA, INC.
  2. Install the rocker cover gasket LH to the rocker cover LH.
    NOTE: Use a new rocker cover gasket LH.
  3. Apply liquid gasket to the mating surface of rocker cover LH as shown in the figure.
    NOTE:
    • Before applying liquid gasket, degrease the old liquid gasket seal surface of the engine.
    • Be careful not to allow liquid gasket to be squeezed out from rocker cover LH.
    • Install within 5 min. after applying liquid gasket.

    Liquid gasket: 

    THREE BOND 1217G (Part No. K0877Y0100), THREE BOND 1217H or equivalent

    Liquid gasket applying diameter: 

    3±1 mm (0.1181±0.0394 in)

    G13641822Courtesy of SUBARU OF AMERICA, INC.
  4. Set the rocker cover LH, and tighten the bolts in numerical order as shown in the figure.

    Tightening torque: 

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

    Fig 1: Rocker Cover LH Bolts Tightening Sequence
    G09480384Courtesy of SUBARU OF AMERICA, INC.
  5. Connect the connector to the water pipe LH.
    G09480375Courtesy of SUBARU OF AMERICA, INC.
  6. Install the #2 ignition coil and the #4 ignition coil. Refer to IGNITION(W/O STI)>IGNITION COIL>INSTALLATION .
  7. Install the side engine oil cooler pipe assembly. Refer to LUBRICATION(W/O STI)>ENGINE OIL COOLER PIPE>INSTALLATION>SIDE ENGINE OIL COOLER PIPE .
  8. When working on the vehicle
NOTE: When working on the vehicle, perform the following steps also.
  1. Support the engine with a lifting device and wire ropes.
    G08316851Courtesy of SUBARU OF AMERICA, INC.
  2. Lift the engine a little, and remove the ST.
    CAUTION: When lifting up the engine, pay attention to the clearance of each part and be careful not to lift the engine too much, in order to prevent damaging the vehicle.
    ST  18632AA030  STAND ASSY 
    G10266836Courtesy of SUBARU OF AMERICA, INC.
  3. Lower the engine and remove the lifting device and wire ropes.
    G08316851Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the cushioning material between pitching stopper bracket and transmission case cover. (CVT model)
  5. 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)

    Fig 2: Pitching Stopper, Nut And Bolt (With Torque Specification)
    G10266704Courtesy of SUBARU OF AMERICA, INC.
  6. Connect the connector to the pressure switch (triple pressure switch).
    G10266832Courtesy of SUBARU OF AMERICA, INC.
  7. Install the fuel pipe protector to the high-pressure fuel pump case and intake manifold, and secure the generator cord to the fuel pipe protector using the clip (A).

    Tightening torque: 

    19 N.m (1.9 kgf-m, 14.0 ft-lb)

    G10266831Courtesy of SUBARU OF AMERICA, INC.
  8. Install the intercooler. Refer to INTAKE (INDUCTION) (W/O STI)>INTERCOOLER>INSTALLATION .
  9. Insert the engine control module (ECM) to the bracket.
    G10266257Courtesy of SUBARU OF AMERICA, INC.
  10. Install the bolt which secures the engine control module (ECM) to the bracket, and then secure the engine wiring harness and bulkhead harness to the bracket with clip (A) and clip (B).

    Tightening torque: 

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

    G12444223Courtesy of SUBARU OF AMERICA, INC.
  11. Lift up the vehicle.
  12. 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)

    G10266857Courtesy of SUBARU OF AMERICA, INC.
  13. Install the center exhaust pipe. Refer to EXHAUST(W/O STI)>CENTER EXHAUST PIPE>INSTALLATION .
  14. Lower the vehicle.
  15. Install the air intake duct. Refer to INTAKE (INDUCTION) (W/O STI)>AIR INTAKE DUCT>INSTALLATION .
  16. Install the battery. Refer to STARTING/CHARGING SYSTEMS(W/O STI)>BATTERY>INSTALLATION .
  17. Fill engine coolant. Refer to COOLING(W/O STI)>ENGINE COOLANT>REPLACEMENT>FILLING OF ENGINE COOLANT .
  18. Install the collector cover. Refer to INTAKE (INDUCTION) (W/O STI)>COLLECTOR COVER>INSTALLATION .
  19. Set the front hood to the normal position. Refer to NOTE>NOTE>FRONT HOOD GAS STAY .
  20. Install the striker - front hood. Refer to EXTERIOR BODY PANELS>FRONT HOOD>ASSEMBLY .
  21. Close the front hood.