A light frosted appearance or minor discoloration on
f a c e of valves (1 and 2) does not mean valve is damaged.
C h e c k that faces of three intake valves (1) and three exhaust valves (2)
a r e not badly burned, pitted, worn or heavily discolored from overheating.
T h r o w away damaged or worn intake valves (1) and exhaust valves (2) and
g e t new ones. S e n d slightly pitted or burned intake valves and exhaust
valves to machine shop for grinding. See figure 4-6.
GO TO FRAME 3