Service Manual

43
VALVE
43
1.
Check diameter
of
valve stem in area covered
by
valve
guide at several points with micrometer.
If
diameter
is
less than
MIN.
replace valve.
VALVE STEM DIA.
MIN
2.
Check bend of valve stem at center part with
V
blocks
(A)
and dial indicator
(B).
If bend (dial gauge reading) of valve stem
is
more than
0.03
mm
(0.0012
in.
replace valve.
C
AUT
I
0
N
:
Do
not try to grind or recondition valve
face.
If
valve face
is
worn or damaged, replace
it.
1.
Check valve spring for any damage and replace it if
2.
Check free length of valve spring with vernier cali-
necessary.
pers.
E33FC
I8W2
If length
is
less than
31.5
mm
(1.240
in.), replace
spring.
for
both springs
E33FC
I9WI