Subaru 2009 IMPREZA Service Manual page 284

MECHANICAL
C: DISASSEMBLY
1) Place the cylinder head on the ST.
ST 498267800 CYLINDER HEAD TABLE
2) Compress the valve spring and remove the
valve spring retainer key using ST. Remove each
valve and valve spring.
ST 499718000 VALVE SPRING REMOVER
NOTE:
• Keep all the removed parts in order for re-install-
ing in their original positions.
• Mark each valve to prevent confusion.
• Pay careful attention not to damage the lips of in-
take valve oil seals and exhaust valve oil seals.
• For removal and installation procedures of the
valve guide, intake valve oil seal and exhaust valve
oil seal, refer to "INSPECTION". <Ref. to
ME(H4SO)-68, VALVE GUIDE, INSPECTION, Cyl-
inder Head.> <Ref. to ME(H4SO)-71, INTAKE AND
EXHAUST VALVE OIL SEAL, INSPECTION, Cyl-
inder Head.>
D: ASSEMBLY
(1) Valve
(2) Valve guide
(3) Valve spring seat
(4) Oil seal
(5) Valve spring
Cylinder Head
(1)
(2)
(9)
(10)
(6) Retainer
(7) Retainer key
(8) Spark plug gasket
(9) Camshaft
(10) Oil seal
ME(H4SO)-66
ST
(8)
(5)
(7)
(3)
(4)
(6)
(12)
(14)
(11)
(11) Plug
(12) Camshaft cap
(13) Valve rocker ASSY
(14) Seal washer
ME-00280
(13)
ME-03110