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Intake Manifold Removal and Installation: Installation

  1. Install the gasket and spacer on the injector base.
  2. Install the intake manifold. Tighten the bolts and nuts sequentially in two or three steps. Always use a new intake manifold gasket.

    Specified Torque 

    8 x 1.25 mm: 22 N.m (2.2 kgf.m, 16 lbf.ft) 

    Fig 1: Installing Intake Manifold Bolts And Nuts In Sequence
    G03639528Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Install the upper cover. Tighten the bolts and nuts sequentially in two or three steps. Always use a new gasket.

    Specified Torque 

    6x 1.0 mm: 12 N.m (1.2 kgf.m, 8.7 lbf.ft) 

    Fig 2: Installing Upper Cover Bolts And Nuts In Sequence
    G03639529Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Install the engine wire harness connectors and wire harness clamps from the intake manifold.
    • Intake air temperature (IAT) sensor 1 connector
    • Throttle actuator connector
    • Manifold absolute pressure (MAP) sensor connector
    • Evaporative emission (EVAP) canister purge valve connector
    • Intake manifold tuning (IMT) (intake manifold runner control (IMRC)) actuator connector
  5. Install the evaporative emission (EVAP) canister hose (A), transmission breather hose clamp bracket (B), and water bypass hoses (C).
    Fig 3: Installing Evaporative Emission Canister Hose
    G03639530Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Install the positive crankcase ventilation (PCV) hose (A), brake booster vacuum hose (B), vacuum hose (C), and vacuum line mounting bolts (D).
    Fig 4: Installing Positive Crankcase Ventilation Hose
    G03639531Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Install the intake air duct (A), then install the breather pipe (B).
    Fig 5: Installing Intake Air Duct And Breather Pipe
    G03639532Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Connect the IAT sensor 2 connector (C).
  9. Install the intake manifold cover.
    Fig 6: Installing Intake Manifold Cover
    G03639533Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Clean up any spilled engine coolant.
  11. After installation, check that all tubes, hoses, and connectors are installed correctly.
  12. Refill the radiator with engine coolant, and bleed air from the cooling system with heater valve open (see step 8 in COOLANT REPLACEMENT ).
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