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Water Passage Replacement

  1. Drain the engine coolant, '04-05 models (see '04-05 MODELS  ), '06-08 models (see '06-08 MODELS  ).
  2. Remove the alternator (see ALTERNATOR REMOVAL AND INSTALLATION ).
  3. Remove the A/C condenser fan shroud assembly (see A/C CONDENSER REPLACEMENT ).
  4. Remove the splash shield (see TRANSMISSION REMOVAL ).
  5. Remove the A/C compressor without disconnecting the A/C hoses (see ENGINE REMOVAL ).
  6. Remove the intake manifold '04-05 models (see REMOVAL ('04-05 MODELS) ), '06-08 models (see REMOVAL ('06-08 MODELS) ).
  7. Remove a bolt (A) securing the connecting pipe.
    Fig 1: Identifying Lower Radiator Hose, Connecting Pipe, Water Bypass Hose, And Positive Crankcase Ventilation (PCV) Hose
    G05490331Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Disconnect the lower radiator hose (B), connecting pipe (C), water bypass hose (D), and positive crankcase ventilation (PCV) hose (E).
  9. Remove the water passage (A).
    Fig 2: Identifying Water Passage And Thermostat Housing
    G05490332Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Remove the thermostat housing (B).
  11. Remove the water pump (see WATER PUMP REPLACEMENT  ).
  12. Clean and dry the water passage mating surfaces.
  13. Apply liquid gasket, P/N 08717-0004, 08718-0001, 08718-0003, or 08718-0009, evenly to the cylinder block mating surface of the water passage. Install the component within 5 minutes of applying the liquid gasket.
    NOTE:
    • 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 new liquid gasket.
      Fig 3: Applying Liquid Gasket To Cylinder Block Mating Surface Of Water Passage
      G05490333Courtesy of AMERICAN HONDA MOTOR CO., INC.
  14. Install the water pump (see Water Pump Replacement  ).
  15. Install the thermostat housing (A) with a new O-ring (B).
    Fig 4: Thermostat Housing, O-Ring And Water Passage w/Torque Specs.
    G05490334Courtesy of AMERICAN HONDA MOTOR CO., INC.
  16. Install the water passage (C) with a new O-ring (D).
    NOTE:
    • Wait at least 30 minutes before filling the engine with coolant.
    • Do not run the engine for at least 3 hours after installing the water passage.
  17. Install the lower radiator hose (A), water bypass hose (B), and positive crankcase ventilation (PCV) hose (C).
    Fig 5: Identifying Lower Radiator Hose, Water Bypass Hose And Positive Crankcase Ventilation (PCV) Hose
    G05490335Courtesy of AMERICAN HONDA MOTOR CO., INC.
  18. Install the connecting pipe (D) with a new O-ring (E).
  19. Tighten the bolt (F) securing the connecting pipe.
  20. Install the intake manifold, '04-05 models (see INSTALLATION ('04-05 MODELS) ), '06-08 models (see INSTALLATION ('06-08 MODELS) ),
  21. Install the A/C compressor (see ENGINE INSTALLATION ).
  22. Install the splash shield (see TRANSMISSION INSTALLATION ).
  23. Install the A/C condenser fan shroud assembly (see A/C CONDENSER REPLACEMENT ).
  24. Install the alternator (see ALTERNATOR REMOVAL AND INSTALLATION ).
  25. Refill the radiator with engine coolant, then bleed air from the cooling system, '04-05 models (see step  6 ), '06-08 models (see step  6 ).
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