April 5, 2026: LEMON Manuals is launched! Read the announcement.

Valve - Spring Free Length

Measure the free length of each valve spring.
- see SPECIFICATIONS for 3.0L engine or SPECIFICATIONS for 3.9L engine.
- If out of specification, install new components as necessary. See 3.0L V6 VIN S or 3.9L VIN A .
Fig 1: Measuring Valve Spring Free Length
Courtesy of FORD MOTOR CO.