Subaru LEGACY 2006 Manual page 817

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(5) Put a new valve guide, coated with sufficient
oil, in cylinder, and insert the ST1 into valve
guide. Press in until the valve guide upper end
is flush with the upper surface of ST2.
ST1 499767200 VALVE GUIDE REMOVER
Intake side
ST2 499767700 VALVE GUIDE ADJUSTER
Exhaust side
ST2 499767800 VALVE GUIDE ADJUSTER
ST1
(6) Check the valve guide protrusion.
Valve guide protrusion L:
Intake
20.0 — 21.0 mm (0.787 — 0.827 in)
Exhaust
16.5 — 17.5 mm (0.650 — 0.689 in)
L
(A)
(A) Valve guide
(7) Ream the inside of valve guide using ST.
Put the reamer in valve guide, and rotate the
reamer slowly clockwise while pushing it lightly.
Bring the reamer back while rotating it clock-
wise. After reaming, clean the valve guide to re-
move chips.
CAUTION:
• Apply engine oil to the reamer when reaming.
• If the inner surface of the valve guide is torn,
the edge of the reamer should be slightly
ground with an oil stone.
• If the inner surface of valve guide becomes
lustrous and the reamer does not chip, use a
new reamer or remedy the reamer.
Cylinder Head
ST 499767400
(8) Recheck the contact condition between
ST2
valve and valve seat after replacing the valve
guide.
4. INTAKE AND EXHAUST VALVE
1) Inspect the flange and stem of valve, and re-
place if damaged, worn, or deformed, or if H is out-
ME-00292 side of the specified limit.
H:
Intake
Standard:
0.8 — 1.2 mm (0.03 — 0.047 in)
Exhaust
Standard:
1.0 — 1.4 mm (0.039 — 0.055 in)
ME-00293
ME(H4SO)-59
MECHANICAL
VALVE GUIDE REAMER
ME-00294
ME-00295