Taurus X FWD V6-3.5L (2008)
Valve: Service and Repair
Valve Stem Diameter
NOTE: Refer to the appropriate specification.
1. Measure the diameter of each intake and exhaust valve stem at the points shown. Verify the diameter is within specification.
Valve Inspection
1. 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.
Valve Guide Inner Diameter
NOTE: Refer to the appropriate specification.
1. NOTE: Valve guides tend to wear in an hourglass pattern. The ball gauge can be inserted into the combustion chamber side of the valve guide if
necessary.
Use a ball gauge to determine the inner diameter of the valve guides in 2 directions at the top, middle and bottom of the valve guide.