(26) Measure valve spring at position L. Normal
free length is 2.190 in. (55.63 mm). If
measurement is above or below normal
length, replace spring.
(27) Measure valve spring at position M. If
inclination is greater than 0.039 in. (1 mm),
replace valve spring.
(28) Measure valve spring tension at position N.
A load of 65 to 72.2 lbs (29.483 to 32.749 kg)
will compress spring to normal height of
1.94 in. (49.25 mm). If above or below
normal height, replace spring.