Valve Spring Squareness
WARNING: This page is about a different car, the 2015 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
- 1.
Measure the out-of-square on each valve spring.
- Turn the valve spring and observe the space between the top of the valve spring and the square.
 Courtesy of FORD MOTOR COMPANY
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