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Home >> Subaru >> 2012 >> Outback Base, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Accessory Drive Belts >> Mechanical (H4SO) >> Cylinder Head >> Inspection >> Intake And Exhaust Valve Oil Seal

Intake And Exhaust Valve Oil Seal

  1. For the following, replace the oil seal with a new part.

    See the procedure 2) and subsequent for replacement procedures.

    • When the lip is damaged.
    • When the spring is out of the specified position.
    • When readjusting the surfaces of valve and valve seat.
    • When replacing the valve guide.
  2. Place the cylinder head on ST1, and use ST2 to press-fit the oil seal.

    ST1 498267800 CYLINDER HEAD TABLE

    ST2 498857100 VALVE OIL SEAL GUIDE

    NOTE:
    • Apply engine oil to oil seal before press-fitting.
    • When press-fitting the oil seal, do not use a hammer or strike in.
    • The intake valve oil seals and exhaust valve oil seals are distinguished by their colors.

    Color of rubber part: 

    Intake [Gray] 

    Exhaust [Green] 

    Fig 1: Pressing Oil Seal Using ST2
    G04997719Courtesy of SUBARU OF AMERICA, INC.