Honda WB20XT2, Manual

Page: 103 / 132

12-4
dummyhead dummyhead
CYLINDER HEAD WB20XT2•WB30XT2
CYLINDER HEAD
DISASSEMBLY/ASSEMBLY
Remove the cylinder head (page 12-3).
INTAKE/EXHAUST VALVE SPRING RETAINER
INTAKE VALVE
EXHAUST VALVE
INSTALLATION:
Do not interchange with the
intake valve.
The exhaust valve is smaller
than the intake valve.
CYLINDER HEAD
INTAKE VALVE GUIDE
PUSH ROD GUIDE PLATE
ROCKER ARM PIVOT BOLT (2)
LOCK NUT (2)
INSTALLATION:
Before installing the rocker arm, check for wear on the surfaces of
the rocker arm that contact the pivot bolt, push rod, and valve stem.
(Tappet surface and pivot)
SPARK PLUG
VALVE GUIDE CLIP
EXHAUST VALVE GUIDE
REMOVAL:
Push down and slide the valve spring retainer (1) to
the side so that the valve stem (2) slips through the
hole at the side of the valve spring retainer.
Do not remove the valve spring retainer while the
cylinder head is installed to the cylinder barrel, or the
valve will drop into the cylinder.
(Sliding surface and stem end)
VALVE SPRING (2)
VALVE ROCKER ARM (2)
ROCKER ARM PIVOT (2)
VALVE STEM SEAL
(Sliding surface
and stem end)
INSTALLATION:
Do not interchange with
the exhaust valve.
The intake valve is larger
than the exhaust valve.
24 N·m (2.4 kgf·m, 18 lbf·ft)
(Threads and pivot)
10 N·m (1.0 kgf·m, 7 lbf·ft)
(2)
(1)
18 N·m (1.8 kgf·m, 13 lbf·ft)