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Home >> Subaru >> 2017 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Engine Mechanical System) >> Rocker Cover >> Installation >> Rocker Cover LH

Rocker Cover LH

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install new spark plug pipe gaskets to the spark plug pipe.
    NOTE:

    Apply a light coat of engine oil to the spark plug pipe gaskets, and insert them onto the spark plug pipe edge (a). 

    G14610756Courtesy of SUBARU OF AMERICA, INC.
  2. Install new rocker cover gasket (ring type) to the cam carrier LH.
    G14610757Courtesy of SUBARU OF AMERICA, INC.
  3. Install new rocker cover gasket LH to the rocker cover LH.
  4. 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. 
    • Apply liquid gasket to the center of rocker cover gasket and be careful not to allow liquid gasket to be squeezed out from rocker cover gasket. 
      G14610758Courtesy of SUBARU OF AMERICA, INC.
    • Install within 5 min. after applying liquid gasket. 

    Preparation items: 

    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)

    G14610759Courtesy of SUBARU OF AMERICA, INC.
  5. Install the rocker cover LH to the cam carrier LH.
    1. Set the rocker cover LH on the cam carrier LH, and fasten all bolts until their two or more full threads engage.
    2. Tighten all bolts with a torque of 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) in numerical order as shown in the figure.
    3. Tighten all bolts again with a torque of 6.4 N.m (0.7 kgf-m, 4.7 ft-lb) in numerical order as shown in the figure.
      NOTE:

      This procedure is necessary to stabilize torque. 

      Fig 1: Rocker Cover LH Bolts Tightening Sequence
      G14610760Courtesy of SUBARU OF AMERICA, INC.
  6. Connect the connector to the water pipe LH.
    G14610744Courtesy of SUBARU OF AMERICA, INC.
  7. Install the #2 ignition coil and the #4 ignition coil. Ref. to IGNITION (H4DOTC)>IGNITION COIL>INSTALLATION>LH SIDE
  8. Install the side engine oil cooler pipe. Ref. to LUBRICATION (H4DOTC)>ENGINE OIL COOLER>INSTALLATION>SIDE ENGINE OIL COOLER PIPE
  9. 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.
      G14610762Courtesy 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. 

      G14610743Courtesy of SUBARU OF AMERICA, INC.
    3. Lower the engine and remove the lifting device and wire ropes.
    4. Remove the ST1 and ST2 from the engine unit.
      G14610740Courtesy of SUBARU OF AMERICA, INC.
    5. Install the pitching stopper.

      CVT model: 

      Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>TRANSMISSION MOUNTING SYSTEM>INSTALLATION>PITCHING STOPPER

      MT model: 

      Ref. to MANUAL TRANSMISSION AND DIFFERENTIAL (TY75)>TRANSMISSION MOUNTING SYSTEM>INSTALLATION>PITCHING STOPPER

    6. Lift up the vehicle.
    7. 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)

      G14610765Courtesy of SUBARU OF AMERICA, INC.
    8. Install the center exhaust pipe. Ref. to EXHAUST (H4DOTC)>CENTER EXHAUST PIPE>INSTALLATION
    9. Lower the vehicle.
    10. Attach the bracket.

      Tightening torque: 

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

    11. Place the engine wiring harness and secure the engine wiring harness to the bracket with the claw (A).
    12. Set the battery cable assembly, and secure the battery cable assembly to the bracket with claw (B).
      G14610766Courtesy of SUBARU OF AMERICA, INC.
    13. Install the engine wiring harness to the clip (A), and connect the connector (B).
    14. Connect the connector (C) and connector (D) in numerical order shown in figure.
      G14610767Courtesy of SUBARU OF AMERICA, INC.
    15. Install the battery. Ref. to STARTING/CHARGING SYSTEMS (H4DOTC)>BATTERY>INSTALLATION
    16. Install the air intake duct. Ref. to INTAKE (INDUCTION) (H4DOTC)>AIR INTAKE DUCT>INSTALLATION
    17. Install the V-belt cover.
      NOTE:
      • Check the grommet for peel-off or disengagement. 
      • Be careful not to deform the bracket during installation. 

      Tightening torque: 

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

      G14600900Courtesy of SUBARU OF AMERICA, INC.
    18. Fill engine coolant. Ref. to COOLING (H4DOTC)>ENGINE COOLANT>REPLACEMENT>FILLING OF ENGINE COOLANT
    19. Set the panel COMPL front hood to the normal position. Ref. to REPAIR CONTENTS>NOTE>FRONT HOOD GAS STAY
    20. Install the striker assembly front hood. Ref. to EXTERIOR BODY PANELS>FRONT HOOD>ASSEMBLY
    21. Close the panel COMPL front hood.
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