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Home >> Honda >> 2012 >> Ridgeline RTL >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Cylinder Head >> Camshaft, Rocker Arm Assembly, Camshaft Seal, and Pulley Installation >> Front

Camshaft, Rocker Arm Assembly, Camshaft Seal, and Pulley Installation: Front

  1. Loosen the locknuts and the adjusting screws.
  2. Clean and dry the camshaft oil seal housing.
  3. Apply a light coat of new engine oil around the camshaft oil seal.
  4. Gently tap the new camshaft oil seal (A) into the cylinder head.
    1. -1 Tap the camshaft oil seal in squarely.
    2. -2 Install the oil seal about 0.5-1.5 mm (0.02-0.06 in.) below the surface of the cylinder head.
    Fig 1: Camshaft Oil Seal With Torque Specifications
    G00511668Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Insert the camshaft (B) into the cylinder head, then install the camshaft thrust cover (C). Always use a new O-ring (D). Apply new engine oil to the journals and the cam lobes.
  6. Clean the excess grease off the camshaft, and check that the oil seal lip is not distorted.
  7. Install the dowel pin (E).
  8. If the rocker arm assembly is disassembled, reassemble the rocker arm assembly (see ROCKER ARM AND SHAFT DISASSEMBLY/REASSEMBLY ).
  9. Remove all of the old liquid gasket from the rocker shaft holder and the cylinder head.
  10. Apply liquid gasket (P/N 08717-0004, 08718-0001, 08718-0003, or 08718-0009) to the rocker shaft holder mating surface of the cylinder head. Install the component within 5 minutes of applying the liquid gasket.
    NOTE:
    • Apply liquid gasket about 2.5 mm (0.098 in.) diameter bead along the broken line (A).
    • If you apply liquid gasket P/N 08718-0012, the component must be installed within 4 minutes.
    • If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply the new liquid gasket.
    Fig 2: Identifying Liquid Gasket Application Area
    G05964130Courtesy of AMERICAN HONDA MOTOR CO., INC.
  11. Set the rocker arm assembly in place, and loosely install the bolts. Make sure that the rocker arms are properly positioned on the valve stems.
    NOTE:
    • Wait at least 30 minutes before filling the engine with oil.
    • Do not run the engine for at least 3 hours after installing the rocker arm assembly.
  12. Tighten each bolt two turns at a time in the sequence shown to ensure that the rockers do not bind on the valves.

    When the rocker shaft bridge is reused: 

    Specified Torque 8 x 1.25 mm: 

    24.5 N.m (2.5 kgf.m, 18 lbf.ft) 

    When a new rocker shaft bridge is installed: 

    Specified Torque 8 x 1.25 mm: 

    1st: 28 N.m (2.9 kgf.m, 21 lbf.ft), then loosen the bolts. 

    2nd: 24.5 N.m (2.5 kgf.m, 18 lbf.ft) 

    Fig 3: Identifying Bolt Tightening Sequence
    G05964131Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Install the injector base (A). Always use a new gasket (B).
    Fig 4: Injector Base And Gasket With Torque Specifications
    G05964132Courtesy of AMERICAN HONDA MOTOR CO., INC.
  14. Apply new engine oil to the threads of the camshaft pulley mounting bolt (A). Install the back cover (B), then install the camshaft pulley (C).
    Fig 5: Camshaft Pulley Mounting Bolt And Back Cover With Torque Specifications
    G05964133Courtesy of AMERICAN HONDA MOTOR CO., INC.
  15. Set the camshaft pulley to top dead center (TDC) before bolting them onto the engine block (see step 6 on CYLINDER HEAD INSTALLATION ).
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