Explorer 4WD V8-4.6L (2008)
Valve Spring: Procedures
Valve Spring Installed Length
1. Measure the installed length of each valve spring.
Valve Spring Free Length
1. Measure the free length of each valve spring.
Valve Spring Squareness
1. Measure the out-of-square on each valve spring.
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Turn the valve spring and observe the space between the top of the valve spring and the square.
Valve Spring Strength
