Intake And Exhaust Valve Oil Seal

WARNING: This page is about a different variant/trim than selected.

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

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 ST2, press-fit the oil seal.

NOTE:

Apply engine oil to oil seal before press-fitting.
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 [Black]

Exhaust [Brown]

Fig 1: Installing Oil Seal Using Special Tool

Courtesy of SUBARU OF AMERICA, INC.