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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 Cylinder Head Related Components
    G00511670Courtesy 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: Aligning TDC Mark On Tooth Of Timing Belt Drive Pulley
    G05964140Courtesy 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: Aligning TDC Marks On Camshaft Pulleys - Front
    G05964141Courtesy of AMERICAN HONDA MOTOR CO., INC.

    REAR 

    Fig 4: Aligning TDC Marks On Camshaft Pulleys - Rear
    G05964142Courtesy 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
    G05964143Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. If either diameter is less than 10.6 mm (0.417 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 30 N.m (3.1 kgf.m, 22 lbf.ft) using a beam-type torque wrench. When using a preset click-type torque wrench, be sure to torque slowly and do not over tighten. 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 Bolts Tightening Sequence - Front
    G05964144Courtesy of AMERICAN HONDA MOTOR CO., INC.

    REAR 

    Fig 7: Identifying Cylinder Head Bolts Tightening Sequence - Rear
    G05964145Courtesy 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 step 12. 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 Bolts Tightening Angle
    G05964146Courtesy 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 fuel rails (see INJECTOR REPLACEMENT ).
  18. Install the connector bracket to the front cylinder head.
    Fig 9: Connector Bracket With Torque Specifications
    G05964147Courtesy of AMERICAN HONDA MOTOR CO., INC.
  19. Install the harness clamp bracket to the rear cylinder head.
    Fig 10: Harness Clamp Bracket With Torque Specifications
    G05964148Courtesy 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 Fuel Feed Hose And Quick-Connect Fitting Cover
    G05964149Courtesy of AMERICAN HONDA MOTOR CO., INC.
  21. Install the front warm up three way catalytic converter (front WU-TWC) (see WARM UP TWC REMOVAL/INSTALLATION ) and the rear warm up three way catalytic converter (rear WU-TWC) (see REAR ).
  22. Connect the following engine wire harness connectors, and install the wire harness clamps to the cylinder head.
    • Six injector connectors
    • Engine coolant temperature (ECT) sensor 1 connector
    • Oil pressure switch connector
    • Camshaft position (CMP) sensor connector
    • Rocker arm oil control solenoid connector
    • Rocker arm oil pressure switch connector
    • Rear air fuel ratio (A/F) sensor connector
    • Rear secondary heated oxygen sensor (secondary HO2S) connector
  23. Install the six ignition coils (see IGNITION COIL REMOVAL/INSTALLATION ).
  24. Install the intake manifold (see INSTALLATION ).
  25. Install the alternator (see ALTERNATOR REMOVAL AND INSTALLATION ).
  26. Install the power steering (P/S) pump (A) and tighten the bolt (B) securing the P/S hose bracket.
    Fig 12: Power Steering (P/S) Pump And Bolts With Torque Specifications
    G05964150Courtesy of AMERICAN HONDA MOTOR CO., INC.
  27. Install the drive belt (see DRIVE BELT INSPECTION ).
  28. Do the battery terminal reconnection procedure (see BATTERY REMOVAL AND INSTALLATION ).
  29. After installation, check that all tubes, hoses, and connectors are installed correctly.
  30. 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.
  31. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater valve open (see COOLANT REPLACEMENT ).
  32. Check for fluid leaks.
  33. Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).
  34. Do the crankshaft position (CKP) pattern clear/CKP pattern learn procedure (see CKP PATTERN CLEAR/CKP PATTERN LEARN ).
  35. Inspect the idle speed (see IDLE SPEED INSPECTION ).
  36. Inspect the ignition timing (see IGNITION TIMING INSPECTION ).
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