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

Cam Carrier LH

  1. Set the part so that the cylinder head LH is on the upper side.
  2. Apply engine oil to the valve shim and the roller rocker arm pivot, and install the valve shim and the roller rocker arm pivot to the cylinder head LH.
    G09480415Courtesy of SUBARU OF AMERICA, INC.
  3. Apply engine oil to the O-ring and the roller rocker arm, and install the O-ring and the roller rocker arm to the cylinder head LH.
    NOTE: Use new O-rings.
    G11266946Courtesy of SUBARU OF AMERICA, INC.
  4. Apply liquid gasket to the mating surface of cam carrier LH as shown in the figure.
    NOTE:
    • Before applying liquid gasket, degrease the old liquid gasket seal surface of the cylinder head LH and cam carrier 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±0.5 mm (0.1181±0.0197 in)

    G13641864Courtesy of SUBARU OF AMERICA, INC.
  5. Install the cam carrier LH to the cylinder head LH.
    1. Mount the cam carrier LH, then tighten all bolts with a torque of 18 N.m (1.8 kgf-m, 13.3 ft-lb) in numerical order as shown in the figure.
      NOTE: Set the intake camshaft LH and the exhaust camshaft LH to the zero-lift position as shown in the figure.
      G09480434Courtesy of SUBARU OF AMERICA, INC.
      Fig 1: Cam Carrier LH Bolts (Tightening Sequence)
      G11266967Courtesy of SUBARU OF AMERICA, INC.
    2. Loosen the bolts (3 places) by 180° in numerical order as shown in the figure.
      Fig 2: Cam Carrier LH Bolts (Loosening Sequence)
      G11266968Courtesy of SUBARU OF AMERICA, INC.
    3. Tighten the bolts (3 places) with a torque of 18 N.m (1.8 kgf-m, 13.3 ft-lb) in numerical order as shown in the figure.
      Fig 3: Cam Carrier LH Bolts (Tightening Sequence)
      G11266969Courtesy of SUBARU OF AMERICA, INC.
    4. Loosen the bolts (3 places) by 180° in numerical order as shown in the figure.
      Fig 4: Cam Carrier LH Bolts (Loosening Sequence)
      G11266970Courtesy of SUBARU OF AMERICA, INC.
    5. Tighten the bolts (3 places) with a torque of 18 N.m (1.8 kgf-m, 13.3 ft-lb) in numerical order as shown in the figure.
      Fig 5: Cam Carrier LH Bolts (Tightening Sequence)
      G11266971Courtesy of SUBARU OF AMERICA, INC.
    6. Loosen the bolts (3 places) by 180° in numerical order as shown in the figure.
      Fig 6: Cam Carrier LH Bolts (Loosening Sequence)
      G11266972Courtesy of SUBARU OF AMERICA, INC.
    7. Tighten the bolts (3 places) with a torque of 18 N.m (1.8 kgf-m, 13.3 ft-lb) in numerical order as shown in the figure.
    NOTE: After tightening, if the liquid gasket is squeezed out onto the seal surface of the chain cover, completely remove any squeezed-out liquid gasket.
    Fig 7: Cam Carrier LH Bolts (Tightening Sequence)
    G11266973Courtesy of SUBARU OF AMERICA, INC.
  6. Set the part so that the installation surface of the intake manifold is on the upper side.
  7. When the cam carrier LH has been disassembled
    NOTE: When the cam carrier LH has been disassembled, perform the following steps also.
    1. Install the cam sprocket LH. Refer to MECHANICAL(W/O STI)>CAM SPROCKET>INSTALLATION>CAM SPROCKET LH .
    2. Install the high-pressure fuel pump. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>HIGH PRESSURE FUEL PUMP>INSTALLATION .
    NOTE: Install the high-pressure fuel pump so that the cam lobes on the intake camshaft LH are positioned as shown in the figure. Perform adjustment within the range of zero-lift (in range where it can be turned lightly by hand).
    G09480442Courtesy of SUBARU OF AMERICA, INC.
  8. Check the cam clearance. Refer to MECHANICAL(W/O STI)>CAM CLEARANCE>INSPECTION>WHEN TIMING CHAIN ASSEMBLY IS REMOVED .
  9. Connect the water pipe hose to oil pan upper, and install the water pipe assembly.

    Tightening torque: 

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

    G09480412Courtesy of SUBARU OF AMERICA, INC.
  10. Temporarily tighten the flare nuts of the high-pressure fuel delivery pipe to the high-pressure fuel pump and fuel injector pipe by hand until they are seated, and then tighten the flare nuts.
    CAUTION: Always use a new high-pressure fuel delivery pipe.

    Tightening torque: 

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

    G10266869Courtesy of SUBARU OF AMERICA, INC.
  11. Install the fuel delivery pipe to the high-pressure fuel pump, and connect the connector (A) to the high-pressure fuel pump.
    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 itself to the disconnecting direction, and then push to the connecting direction in order to confirm secure connection. Make sure to end this check with a pushing step.
    NOTE: Connect the quick connector as shown in the figure.
    G13641876Courtesy of SUBARU OF AMERICA, INC.
    G10266868Courtesy of SUBARU OF AMERICA, INC.
  12. Install the fuel pipe insulator No. 1 to the high pressure fuel pump and high pressure fuel delivery pipe.
    G12441686Courtesy of SUBARU OF AMERICA, INC.
  13. Temporarily tighten the bolts securing the fuel pipe protector to the high-pressure fuel pump case.
    G12441685Courtesy of SUBARU OF AMERICA, INC.
  14. Secure the engine wiring harness to the cam carrier LH with a clip.
    G09480406Courtesy of SUBARU OF AMERICA, INC.
  15. Install the rocker cover LH. Refer to MECHANICAL(W/O STI)>ROCKER COVER>INSTALLATION>ROCKER COVER LH .
  16. Install the intake manifold. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>INTAKE MANIFOLD>INSTALLATION .
  17. Tighten the bolts securing the fuel pipe protector to the high-pressure fuel pump case.

    Tightening torque: 

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

    G10266908Courtesy of SUBARU OF AMERICA, INC.
  18. Install timing chain LH. Refer to MECHANICAL(W/O STI)>TIMING CHAIN ASSEMBLY>INSTALLATION>TIMING CHAIN LH .
  19. Install the engine to the vehicle. Refer to MECHANICAL(W/O STI)>ENGINE ASSEMBLY>INSTALLATION .
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