Measure the length of the valve spring. If the measurement is less than the allowable limit, replace the spring [Figure 70-80-33].
Free Length 1.6417 – 1.6614 in. (41,7 – 42,2 mm)
Allowable Limit 1.622 in. (41,2 mm)
Put the spring on a flat surface, place a square on the side of the spring [Figure 70-80-33].
Rotate the spring and measure the maximum tilt. If the measurement exceeds the allowable limit, replace the spring.
Tilt Allowable Limit 0.039 in. (1,0 mm)
Put the spring on a tester and compress to specified length [Figure 70-80-34].
Read the compressed load on the gauge. If the measurement exceeds allowable limit, replace the spring.
Setting Length 1.378 in. (35,0 mm)
Setting Load 26.4 lb. (117,6 N)
Allowable Limit 22.5 lb. (100,0 N)
