Intake And Exhaust Valve Oil Seal

In the following case, pinch and remove the oil seal from valve using pliers, then replace it with a new part.

• When the lip is damaged.
• When the spring is out of the specified position.
• When readjusting the surfaces of intake valve and valve sheet.
• When replacing the intake valve guide.

1. Place the cylinder head on ST1.
2. Using the ST2, press-fit the oil seal.
   CAUTION:

   • Apply engine oil to oil seal before press-fitting.
   • When press-fitting the oil seal, do not use a hammer or strike in.
   • Differentiate between the intake valve oil seal and exhaust valve oil seal by noting their difference in color.

   ST1 498267800 CYLINDER HEAD TABLE 

   ST2 498857100 VALVE OIL SEAL GUIDE 

   Color of rubber part: 

   Intake [Gray] 

   Exhaust [Green] 

   Fig 1: Pressing Oil Seal Using ST2

   Courtesy of SUBARU OF AMERICA, INC.