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Cylinder Head Installation

  1. Clean the cylinder head and the engine block surface.
  2. Clean and install the oil control orifices (A) with new O-rings (B).
    Fig 1: Identifying Oil Control Orifices, O-Rings, Dowel Pins And Cylinder Head Gaskets
    G08078764Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Install the dowel pins (C) and the new cylinder head gaskets (D).
  4. Clean the timing belt pulleys, the timing belt guide plate, and the upper and lower covers.
  5. Set the timing belt drive pulley to top dead center (TDC) by aligning the TDC mark (A) on the tooth of the timing belt drive pulley with the pointer (B) on the oil pump.
    Fig 2: Identifying TDC Mark On Tooth Of Timing Belt Drive Pulley With Pointer On Oil Pump
    G08078765Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Set the camshaft pulleys to TDC by aligning the TDC marks (A) on the camshaft pulleys with the pointers (B) on the back covers.

    FRONT 

    Fig 3: Identifying TDC Marks On Camshaft Pulleys With Pointers On Back Covers (Front)
    G08078766Courtesy of AMERICAN HONDA MOTOR CO., INC.

    REAR 

    Fig 4: Identifying TDC Marks On Camshaft Pulleys With Pointers On Back Covers (Rear)
    G08078767Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Install the cylinder heads on the engine block.
  8. Measure the diameter of each cylinder head bolt at point A and point B.
    Fig 5: Measuring Diameter Of Cylinder Head Bolt At Point A And B
    G08078768Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. If either diameter is less than 11.3 mm (0.44 in), replace the cylinder head bolt.
  10. Apply new engine oil to the threads and under the bolt heads of all cylinder head bolts.
  11. Torque the cylinder head bolts in sequence to 29 N.m (3.0 kgf.m, 22 lbf.ft) using a beam-type torque wrench. When using a preset click-type torque wrench, be sure to tighten slowly and do not overtighten. If a bolt makes any noise while you are torquing it, loosen the bolt and retighten it from the first step.

    Front 

    Fig 6: Identifying Cylinder Head Bolt Tightening Sequence (Front)
    G08078769Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Rear 

    Fig 7: Identifying Cylinder Head Bolt Tightening Sequence (Rear)
    G08078770Courtesy of AMERICAN HONDA MOTOR CO., INC.
  12. After torquing, tighten all cylinder head bolts in two steps (90° per step) using the sequence shown in illustration in step  11. If you are using a new cylinder head bolt, tighten the bolt an extra 90°.
    NOTE: Remove the cylinder head bolt if you tightened it beyond the specified angle, and go back to step  8 of the procedure. Do not loosen it back to the specified angle.
    Fig 8: Identifying Cylinder Head Bolt Tightening Steps
    G08078771Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Install the timing belt (see TIMING BELT INSTALLATION  ).
  14. Adjust the valve clearance (see VALVE CLEARANCE ADJUSTMENT  ).
  15. Install the cylinder head covers (see CYLINDER HEAD COVER INSTALLATION  ).
  16. Install the water passage (see WATER PASSAGE REPLACEMENT ).
  17. Install the injector bases (see INJECTOR BASE REMOVAL AND INSTALLATION ).
  18. Install the connector bracket (A) to the front cylinder head.
    Fig 9: Connector Bracket And Bolt With Torque Specifications
    G08078772Courtesy of AMERICAN HONDA MOTOR CO., INC.
  19. Install the harness clamp bracket (A) to the rear cylinder head.
    Fig 10: Harness Clamp Bracket And Bolt With Torque Specifications
    G08078773Courtesy of AMERICAN HONDA MOTOR CO., INC.
  20. Connect the fuel feed hose (A), then install the quick-connect fitting cover (B) (see FUEL LINE/QUICK-CONNECT FITTING INSTALLATION ).
    Fig 11: Identifying Quick-Connect Fitting Cover And Fuel Feed Hose
    G08078774Courtesy of AMERICAN HONDA MOTOR CO., INC.
  21. Install the front warm up TWC (see WARM UP TWC REMOVAL/INSTALLATION ) and the rear warm up TWC (see REAR WU-TWC (BANK 1) ).
  22. Connect the following engine wire harness connectors, and install the wire harness clamps to the cylinder head:
    • Six injector connectors
    • ECT sensor 1 connector
    • Front rocker arm oil pressure switch connector
    • Rear rocker arm oil pressure switch connector
    • CMP sensor connector
    • Front A/F sensor 1 connector
    • Rear A/F sensor 1 connector
    • Front secondary HO2S connector
    • Rear secondary HO2S connector
    • Rocker arm oil control solenoid A (Bank 1) connector
    • Rocker arm oil control solenoid A (Bank 2) connector
    • Rocker arm oil control solenoid B (Bank 1) connector
    • Knock sensor connector
  23. Install the six ignition coils (see IGNITION COIL AND SPARK PLUG REMOVAL/INSTALLATION ).
  24. Install the intake manifold (see INSTALLATION ).
  25. Install the alternator (see INSTALLATION ).
  26. Install the power steering pump (A) and tighten the bolt (B) securing the power steering hose bracket (C).
    Fig 12: Power Steering Pump, Power Steering Hose Bracket And Bolt With Torque Specifications
    G08078775Courtesy of AMERICAN HONDA MOTOR CO., INC.
  27. Install the drive belt (see DRIVE BELT REPLACEMENT ).
  28. Do the battery installation procedure (see INSTALLATION ).
  29. Install the air intake duct (see FRONT BULKHEAD COVER REPLACEMENT ).
  30. After installation, check that all tubes, hoses, and connectors are installed correctly.
  31. Inspect for fuel leaks. Turn the ignition switch to ON (II) (do not operate the starter) so the fuel pump runs for about 2 seconds and pressurizes the fuel line. Repeat this operation three times, then check for fuel leakage at any point in the fuel line.
  32. Refill the radiator with engine coolant, and bleed the air from the cooling system (see COOLANT CHECK ).
  33. Check for fluid leaks.
  34. Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).
  35. Do the CKP pattern clear/CKP pattern learn procedure (see CKP PATTERN CLEAR/CKP PATTERN LEARN ).
  36. Inspect the idle speed (see IDLE SPEED INSPECTION ).
  37. Inspect the ignition timing (see IGNITION TIMING INSPECTION ).
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