Special Tool(s)

Fig 1: Identifying Special Tool

Courtesy of FORD MOTOR CO.

Use a Valve/Clutch Spring Pressure Gauge to check the valve spring for correct strength at the specified valve spring length.
- If out of specification, install new components as necessary. Refer to ENGINE for the procedure .
  
  Fig 2: Checking Valve Spring For Correct Strength At Specified Valve Spring Length
  Courtesy of FORD MOTOR CO.