k. Valve springs inspection.
Weak valve springs may cause valve flutter resulting in excessive wear of valves,
seats and guides. Valve timing may also be affected causing valve to strike top of
Plac e valve spring to tool no. 3375182 valve spring tester.
Compress spring to 1/24 in. (43.79 mm) length.
Check load on tester gage.
Replace spring if load indicated is less than 143 lbs (636 N).