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Home >> Subaru >> 2018 >> WRX Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical (Except For STI) >> Chain Cover >> Installation

Chain Cover: Installation

  1. Degrease the press-fit section for the chain cover front oil seal, and install the front oil seal to the chain cover using ST.
    CAUTION: Do not apply fluid such as engine oil to the front oil seal and the chain cover; otherwise engine oil leakage may occur.
    NOTE: Use a new front oil seal.

    ST 41399FG020

    SPECIAL TOOL B

    Front oil seal press-fit position:

    1+0-1 mm (0.0394+0-0.0394 in) position from chain cover end face

    G12441576Courtesy of SUBARU OF AMERICA, INC.
  2. Install the O-rings to cylinder head RH, cylinder head LH, cylinder block LH and oil pan upper.
    NOTE:
    • Use new O-rings.
    • Apply a coat of engine oil to the O-rings.
    G11576277Courtesy of SUBARU OF AMERICA, INC.
  3. Apply liquid gasket if there are gaps between front camshaft cap and cam carrier (A), cam carrier and cylinder head (B), and cylinder head and cylinder block (C) as shown in the figure.

    Liquid gasket:

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

    G11576281Courtesy of SUBARU OF AMERICA, INC.
  4. Apply liquid gasket to the chain cover mating surface and center boss (5 places) as shown in the figure.
    NOTE:
    • Before applying liquid gasket, degrease the old liquid gasket seal surface of the engine and chain cover.
    • 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:

    4±0.5 mm (0.1575±0.0197 in)

    G12441579Courtesy of SUBARU OF AMERICA, INC.
  5. Set the chain cover, and tighten the bolts in numerical order as shown in the figure.
    CAUTION: The chain cover may contact the protrusion (a) of cam sprocket sensor plate and cause damage. When setting the chain cover, move the chain cover horizontally and set it while taking care not to contact with the cam sprocket.
    G11576275Courtesy of SUBARU OF AMERICA, INC.

    Tightening torque:

    T1: 10 N.m (1.0 kgf-m, 7.4 ft-lb)

    T2: 25 N.m (2.5 kgf-m, 18.4 ft-lb)

    Fig 1: Chain Cover Bolts Tightening Sequence
    G12441581Courtesy of SUBARU OF AMERICA, INC.
  6. Install the idler pulley (D), crank pulley boss (C) and oil level gauge guide (B), and insert the oil level gauge (A).
    NOTE:
    • When installing the idler pulley, be careful of the idler pulley cover direction.
      G12441582Courtesy of SUBARU OF AMERICA, INC.
    • Use a new O-ring to the oil level gauge guide.
    • Apply a light coat of engine oil to the O-rings of the oil level gauge guide and the oil level gauge.

    Tightening torque:

    T1: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

    T2: 36 N.m (3.7 kgf-m, 26.6 ft-lb)

    G12441583Courtesy of SUBARU OF AMERICA, INC.
  7. Connect the terminal (A) to the oil pressure switch, connector (B) to the engine oil temperature sensor, connector (C) to the intake oil control solenoid LH, connector (D) to the exhaust oil control solenoid LH, and the connector (E) to the intake camshaft position sensor LH, and fix the engine wiring harness using the clip (F).
    NOTE: The oil pressure switch harness must be positioned toward the left lower side of the vehicle within the range of 90°.
    G12441584Courtesy of SUBARU OF AMERICA, INC.

    Tightening torque:

    1.5 N.m (0.2 kgf-m, 1.1 ft-lb)

    G10266746Courtesy of SUBARU OF AMERICA, INC.
  8. Attach the rubber cap to the oil pressure switch.
    G10266745Courtesy of SUBARU OF AMERICA, INC.
  9. Connect the connector (A) to the exhaust camshaft position sensor LH and the connector (B) to the oil level switch, and install the engine wiring harness stay to the chain cover.

    Tightening torque:

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

    G09480278Courtesy of SUBARU OF AMERICA, INC.
  10. Connect the connector (A) to the intake oil control solenoid RH, connector (B) to the exhaust oil control solenoid RH, connector (C) to the intake camshaft position sensor RH, and the connector (D) to the exhaust camshaft position sensor RH, and then fix the engine wiring harness using the clips (E) and (F).
    G12441566Courtesy of SUBARU OF AMERICA, INC.
  11. Install the vacuum pipe assembly to the chain cover, and connect the vacuum control hose (C) and vacuum hose (D) to the vacuum pipe assembly.

    Tightening torque:

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

  12. Install the connector (A) and connector (B) to the vacuum pipe assembly.
    G12441565Courtesy of SUBARU OF AMERICA, INC.
  13. Connect the connector to the engine wiring harness.
    G12441564Courtesy of SUBARU OF AMERICA, INC.
  14. Install the PCV pipe to the clip (A).
    G11266837Courtesy of SUBARU OF AMERICA, INC.
  15. Fix the PCV pipe to the intake manifold using the clip.
    G11266808Courtesy of SUBARU OF AMERICA, INC.
  16. Install the front engine oil cooler pipe assembly. Ref. to LUBRICATION(EXCEPT FOR STI)>Engine Oil Cooler Pipe>INSTALLATION>FRONT ENGINE OIL COOLER PIPE .
  17. Attach the engine oil cooler. Ref. to LUBRICATION(EXCEPT FOR STI)>Engine Oil Cooler>INSTALLATION .
  18. Install the crank pulley. Ref. to MECHANICAL(EXCEPT FOR STI)>Crank Pulley>INSTALLATION .
  19. Install the water pump pulley. Ref. to COOLING(EXCEPT FOR STI)>Water Pump>INSTALLATION>WATER PUMP .
  20. Install the generator. Ref. to STARTING/CHARGING SYSTEMS(EXCEPT FOR STI)>Generator>INSTALLATION .
  21. Install the V-belts. Ref. to MECHANICAL(EXCEPT FOR STI)>V-belt>INSTALLATION>V-BELT .
  22. Fill engine oil. Ref. to LUBRICATION(EXCEPT FOR STI)>Engine Oil>REPLACEMENT .
  23. When working on the vehicle
    NOTE: When working on the vehicle, perform the following steps also.
    1. Install the front exhaust pipe. Ref. to EXHAUST(EXCEPT FOR STI)>Front Exhaust Pipe>INSTALLATION .
    2. Install the intake duct No. 1 and intake duct No. 2. Ref. to INTAKE (INDUCTION) (EXCEPT FOR STI)>Intake Duct>INSTALLATION>INTAKE DUCT NO. 1 . Ref. to INTAKE (INDUCTION) (EXCEPT FOR STI)>Intake Duct>INSTALLATION>INTAKE DUCT NO. 2 .
    3. Install the radiator. Ref. to COOLING(EXCEPT FOR STI)>Radiator>INSTALLATION .
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