Valve Spring Squareness

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. 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. Refer to appropriate ENGINE article for the procedure.
  
  Fig 1: Measuring Valve Spring Out-Of-Square
  Courtesy of FORD MOTOR CO.