Subaru Legacy 2002 Service Manual page 1080

(2) Insert ST2 into valve guide and press it
down to remove valve guide.
ST1 18250AA000 CYLINDER HEAD TABLE
ST2 499765700 VALVE GUIDE REMOVER
(3) Turn cylinder head upside down and place
ST as shown in the figure.
ST 18251AA000 VALVE GUIDE ADJUSTER
(4) Before installing new valve guide, make
sure that neither scratches nor damages exist
on the inside surface of the valve guide holes in
cylinder head.
(5) Put new valve guide in cylinder, and insert
ST1 into valve guide. Press in until the valve
guide upper end is flush with the upper surface
of ST2.
ST1 499765700 VALVE GUIDE REMOVER
ST2 18251AA000 VALVE GUIDE ADJUSTER
(6) Check the valve guide protrusion.
Valve guide protrusion: L
12.3 — 12.7 mm (0.484 — 0.500 in)
CYLINDER HEAD ASSEMBLY
B2M4076
G2M0763
B2M1398A
ME(H6)-59
(7) Ream the inside of valve guide with ST.
Gently rotate the reamer clockwise while press-
ing it lightly into valve guide, and return it also
rotating clockwise. After reaming, clean valve
guide to remove chips.
ST 499765900 VALVE GUIDE REAMER
CAUTION:
¼ Apply engine oil to the reamer when ream-
ing.
¼ If the inner surface of the valve guide is torn,
the edge of the reamer should be slightly
ground with an oil stone.
¼ If the inner surface of the valve guide
becomes lustrous and the reamer does not
chips, use a new reamer or remedy the reamer.
(8) Recheck the contact condition between
valve and valve seat after replacing valve guide.
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.
Mechanical
S143093A0104