Intake And Exhaust Valve
WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the flange of valve and valve stem, and replace the valve with a new part if damaged, worn, deformed, or if dimension "H" in the illustration is outside of the specified limit.
Head edge thickness H:
Standard
Intake (A)
1.0 - 1.4 mm (0.039 - 0.055 in)
Exhaust (B)
1.3 - 1.7 mm (0.051 - 0.067 in)
- Put a small amount of grinding compound on the valve seat surface, and lap the valve and valve seat surface. Replace with a new valve oil seal after lapping.NOTE: It is possible to differentiate between the intake valve and the exhaust valve by their overall length.
Valve overall length:
Intake
104.4 mm (4.110 in)
Exhaust
104.65 mm (4.1201 in)