Valve Inspection

WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the following valve areas:
1. the end of the stem for grooves or scoring
2. the valve face and the edge for pits, grooves or scores
3. the valve head for signs of burning, erosion, warpage and cracking
4. the valve margin for wear
  
  Fig 1: Inspecting Valve
  Courtesy of FORD MOTOR CO.