Tribute 4WD L4-2.5L Hybrid (2009)
Valve Guide: Testing and Inspection
Valve Guide Inner Diameter
VALVE GUIDE INNER DIAMETER
1. 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.
NOTE:Valve guides tend to wear in an hourglass pattern The ball guide can be inserted into the combustion chamber side of the valve guide, if
necessary.
2. Measure the ball gauge with a micrometer.
3. If the valve guide is not within specifications, install a new cylinder head assembly.
NOTE:See See: Specifications for the specification.