July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Valve Stem Diameter

Measure the diameter of each intake and exhaust valve stem at the points shown. Verify the diameter is within specification.
- Refer to SPECIFICATIONS .
- If out of specification, install new components as necessary. Refer to the appropriate article for the procedure.
  
  Fig 1: Measuring Diameter Of Valve Stem
  Courtesy of FORD MOTOR CO.