Oil/Air Separator Removal/Installation

Raise the vehicle on the lift.
Remove the splash shield (see SPLASH SHIELD REPLACEMENT ).
Remove the thermostat housing (see THERMOSTAT REPLACEMENT ).
Disconnect the PCV hose (A).

Fig 1: Identifying PCV Hose And Oil/Air Separator Assembly
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the oil/air separator (B).
Remove all of the old liquid gasket from the oil/air separator mating surfaces, the bolts, and the bolt holes.
Clean and dry the oil/air separator mating surfaces.
Apply liquid gasket (P/N 08717-0004, 08718-0003, or 08718-0009) to the engine block mating surface of the oil/air separator and to the inside edge of the bolt holes. Install the component within 5 minutes of applying the liquid gasket.
NOTE:
- Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket 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 new liquid gasket.
Fig 2: Identifying Liquid Gasket Applying Areas Of Engine Block Mating Surface Of Oil/Air Separator
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the oil/air separator (A).
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 oil/air separator.
Fig 3: Oil/Air Separator Hose And PCV Assembly With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Connect the PCV hose (B).
Install the thermostat housing (see THERMOSTAT REPLACEMENT ).
Install the splash shield (see SPLASH SHIELD REPLACEMENT ).
Lower the vehicle on the lift.