Cylinder Head And Valves: Inspection: Valve

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

Check the valve seat contact. The valve seat contact should be uniform at the center of the valve face. If incorrect, reface using a valve refacer.
If the margin is below the limit, replace the valve.
Standard value:

< Intake > 1.0 mm (0.04 inch)

< Exhaust > 1.2 mm (0.05 inch)

Minimum limit:

< Intake > 0.5 mm (0.02 inch)

< Exhaust > 0.7 mm (0.03 inch)

Fig 1: Checking Valve Seat Contact
Courtesy of DAIMLERCHRYSLER CORPORATION
Measure the valve's total length. If the measurement is less than the limit, replace the valve.
Standard value:

< Intake > 112.30 mm (4.421 inches)

< Exhaust > 114.11 mm (4.493 inches)

Minimum limit:

< Intake > 111.80 mm (4.402 inches)

< Exhaust > 113.61 mm (4.473 inches)

Fig 2: Measuring Valve's Total Length
Courtesy of DAIMLERCHRYSLER CORPORATION