Subaru Legacy 2002 Service Manual page 361

Mechanical
4. INTAKE AND EXHAUST VALVE
1) Inspect the flange and stem of valve, and
replace if damaged, worn, or deformed, or if "H" is
less than the specified limit.
H:
Intake
Standard 1.0 mm (0.039 in)
Limit 0.6 mm (0.024 in)
Exhaust
Standard 1.2 mm (0.047 in)
Limit 0.6 mm (0.024 in)
Valve overall length:
Intake
120.6 mm (4.75 in)
Exhaust
121.7 mm (4.79 in)
2) Put a small amount of grinding compound on
the seat surface and lap the valve and seat sur-
face. <Ref. to
ADJUSTMENT, Cylinder Head Assembly.> Install
a new intake valve oil seal after lapping.
CYLINDER HEAD ASSEMBLY
S173093A0104
G2M0153
ME-69, VALVE SEAT,
ME-72