The
valves cannot
be
ground. If the
valve face is
burned, badly
worn
or
If It
contects
the
seat
unevenly,
replace
the
118/ve.
VALVE SEAT INSPECTION/REFACING
Disassemble the cylinder head
(page
8-12)
.
Clean the intake
and
exhaust valves thoroughly to
remove carbon deposits.
Apply a light coal
of
Prussian Blue to
the
valve seats.
Tap
the valve against the valve seat several times using
a hand-lapping
1001,
without rotating the valve to make a
clear pattern.
Remove the valve and inspect the valve seal face.
The valve seat contact should
be
within the specified
width and even all around the circumference.
STANDARD: 0
.9
- 1.1
mm
(0.
035-
0.043 In)
SERVICE LIMIT: 1.6
mm
(0.06
in)
If the valve seal width is not within specification, raface
the valve seal (page 8-21).
CYLINDER
HEADNALVES
SEAT WIDTH
8-21
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