Honda WT30XK4, Manual

Page: 89 / 124

CYLINDER HEAD/VALVES
12-6
If the valve seat is too high or too low, recondition the
valve seat (page 12-10).
VALVE GUIDE I.D.
Ream the valve guide (1) to remove any carbon
deposits before measuring.
Turn the special tool (Valve guide reamer) clockwise,
never counterclockwise.
Continue to rotate the special tool while removing it
from the valve guide.
Measure and record each valve guide I.D.
If the measured valve guide I.D. is more than the
service limit, replace the valve guide (page 12-8).
VALVE FACE
Inspect each valve for face irregularities.
If necessary, replace the valve (page 12-4).
TOOL:
Valve guide reamer, 6.612 mm (2)
07984-ZE2000D
COMBUSTION
CHAMBER SIDE
VALVE SPRING
SIDE
(2)
T-HANDLE
NWYT505
(Commercially available)
(1)
STANDARD: 6.600 – 6.615 mm (0.2598 – 0.2604 in)
SERVICE LIMIT:6.66 mm (0.262 in)
VALVE FACE
61YG1000.book 6 ページ ２０１２年２月２０日 月曜日 午後２時４３分