Valve - Spring Free Length

Measure the free length of each valve spring.
- Refer to ENGINE 4.6L 2V or ENGINE 4.6L 4V .
- If out of specification, install new components as necessary. Refer to ENGINE 4.6L 2V or ENGINE 4.6L 4V .
  
  Fig 1: Measuring Free Length Of Each Valve Spring
  Courtesy of FORD MOTOR CO.