Valve Spring Squareness

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

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. Install a new valve spring if out of square.
- For additional information, refer to the General Specification chart in the appropriate engine article.
- If out of specification, install new components as necessary. Refer to the appropriate article for the procedure.
  
  Fig 1: Measuring Valve Spring Squareness
  Courtesy of FORD MOTOR CO.