Valve - Guide Inner Diameter

Measure the inner diameter of the valve guides in two directions where indicated.
- For additional information, refer to SPECIFICATIONS .
  
  Fig 1: Measuring Inner Diameter Of Valve Guides
  Courtesy of FORD MOTOR CO.
If the valve guide is not within specifications, ream the valve guide and install a valve with an oversize stem or remove the valve guide and install a new valve guide.