CYLINDER HEAD - CONTINUED
INSPECTION - CONTINUED
Safety goggles must be worn to prevent eye injury caused by flying steel chips.
Using a wire brush, clean valves and
polish with crocus cloth.
b. Inspect valve head (2) for cups,
If cups, cracks, or pits are found,
c. Using 0- to 1-inch micrometer, check
valve head rim thickness (3).
If thickness Is less than 0.105 Inch
(2.87 mm), discard valve.
d. Using 0- to 1-inch micrometer (4),
check valve stem diameter (5).
If valve stem diameter (5) is less
than 0.449 Inch (11.41 mm), dis-
Check collet recesses (6) for wear.
If new collet will not fit in recesses
securely, discard valve.
T A 2 4 2 4 6 1