E 350 V10-6.8L (2007)
Valve Spring: Service and Repair
Valve Spring Inspection
Valve Spring Installed Length
1. Measure the installed length of each valve spring.
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If out of specification, install new components.
Valve Spring Free Length
1. Measure the free length of each valve spring.
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If out of specification, install new components as necessary.
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. Install a new valve spring if out of square.
Valve Spring Strength