Section 15 (Engine Mechanical (H6DO)): Camshaft: Installation

WARNING: This page is about a different variant/trim than selected.

Apply engine oil to camshaft journals, and install the camshaft.
Install the camshaft cap.
1. Apply liquid gasket sparingly to back side of the front camshaft cap as shown in the figure.
  NOTE:
  - Install within 5 min. after applying liquid gasket.
  - Do not apply liquid gasket excessively. Applying excessively may cause excess gasket to come out and flow toward cam journal, resulting in engine seizure.
  Liquid gasket:
  
  THREE BOND 1217G (Part No. K0877Y0100) or equivalent
  
  Liquid gasket applying diameter:
  
  2.0±0.5 mm (0.079±0.020 in)
  
  Fig 1: Identifying Camshaft Journals Engine Oil Applying Area
  Courtesy of SUBARU OF AMERICA, INC.
2. Install O-rings to the front camshaft cap.
  NOTE: Use new O-rings.
  
  Fig 2: Locating Front Camshaft Cap O-Rings
  Courtesy of SUBARU OF AMERICA, INC.
3. Apply a thin coat of engine oil to the cap journal surface, and install the camshaft cap to the camshaft.
4. Gradually tighten the camshaft cap in at least two stages in the numerical order shown in the figure, then tighten to specified torque.
  Tightening torque:
  
  (1) - (12): 16 N.m (1.6 kgf-m, 11.8 ft-lb)
  
  (13) - (17): 9.75 N.m (1.0 kgf-m, 7.2 ft-lb)
  
  Fig 3: Identifying Camshaft Caps Tightening Sequence
  Courtesy of SUBARU OF AMERICA, INC.
5. After tightening the camshaft cap, ensure the camshaft rotates only slightly while holding it at base circle.
Install the rocker cover.
1. Install the rocker cover gasket to the rocker cover.
  NOTE: Use a new rocker cover gasket.
2. Apply liquid gasket sparingly to the mating surface of cylinder head and rocker cover as shown in the figure.
  NOTE:
  - Install within 5 min. after applying liquid gasket.
  - Do not apply liquid gasket excessively. Applying excessively may cause excess gasket to come out and flow toward cam journal, resulting in engine seizure.
  Liquid gasket:
  
  THREE BOND 1217G (Part No. K0877Y0100) or equivalent
  
  Liquid gasket applying diameter:
  
  3.5±0.5 mm (0.138±0.020 in)
  - LH side
    
    Fig 4: Identifying Cylinder Head Mating Surface Liquid Gasket Applying Area (LH Side)
    Courtesy of SUBARU OF AMERICA, INC.
  - RH side
    
    Fig 5: Identifying Cylinder Head Mating Surface Liquid Gasket Applying Area (RH Side)
    Courtesy of SUBARU OF AMERICA, INC.
3. Tighten the rocker cover bolts in the numerical order as shown in the figure.
  Tightening torque:
  
  6.4 N.m (0.7 kgf-m, 4.7 ft-lb)
  - LH side
    
    Fig 6: Identifying Rocker Cover Bolts Tightening Sequence (LH Side)
    Courtesy of SUBARU OF AMERICA, INC.
  - RH side
    
    Fig 7: Identifying Rocker Cover Bolts Tightening Sequence (RH Side)
    Courtesy of SUBARU OF AMERICA, INC.
4. Install the crank sprocket. Refer to , INSTALLATION , Crank Sprocket.
5. Install the cam sprocket. Refer to , INSTALLATION , Cam Sprocket.
6. Install the timing chain assembly. Refer to , INSTALLATION , Timing Chain Assembly.
7. Install the chain cover. Refer to , INSTALLATION , Chain Cover.
8. Install the crank pulley. Refer to , INSTALLATION , Crank Pulley.
9. Install the engine to the vehicle. Refer to , INSTALLATION , Engine Assembly.