Intake And Exhaust Valve Oil Seal

In the following case, pinch and remove the oil seal from valve using pliers, and 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.
   NOTE:

   • Apply engine oil to oil seal before press-fit-ting.
   • When press-fitting the oil seal, do not use a hammer or strike in.

   ST1 498267600 CYLINDER HEAD TABLE 

   ST2 498857100 VALVE OIL SEAL GUIDE 

   CAUTION: Differentiate between the intake valve oil seal and exhaust valve oil seal by noting their difference in color.

   Color of rubber part: 

   Intake [Gray] 

   Exhaust [Green] 

   Fig 1: Identifying Valve Oil Seal Guide ST2 498857100