Valve-Spring Strength

Special Tool(s) 

Fig 1: Identifying Special Tool

Courtesy of FORD MOTOR CO.

1. Use the special tool to check the valve spring for correct strength at the specified valve spring length.
   • GENERAL SPECIFICATIONS .
   • If out of specification, install new components as necessary. Refer to ENGINE for the procedure.
     Fig 2: Checking Valve Spring Strength

     Courtesy of FORD MOTOR CO.