Valve Guide Inner Diameter
For information on Ford Color Coded Illustrations refer to OEM COLOR CODING .
Check
NOTE:
Refer to the appropriate Engine article: 3.2L DURATORQ-TDCI (148KW/200PS) - PUMA
/3.5L ECOBOOST (235KW/320PS)
/3.7L DURATEC (199KW/270PS)
for the specification.
-
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 inside diameter of the valve guides in 2 directions at the top, middle and bottom of the valve guide.
- Measure the ball gauge with a micrometer.
- If the valve guide is not within specifications, install a new cylinder head assembly.