RAM 2500 Truck 4WD L6-359 5.9L DSL Turbo VIN D FI (1998)
Valve: Testing and Inspection
Before cleaning, note the valve number. Clean the valve heads with a soft wire wheel. Mark the valve with the number noted above.
Polish the valve stems with crocus cloth.
Inspect for abnormal wear on the valve heads and stems. Replace badly worn valves.
Check for bent valves. Replace bent valves.
Measure Valve Stem Diameter
Measure the valve stem diameter. The valve stem diameter should be 7.935-7.960 mm (0.3126-0.3134 inch). If out of limits, replace the valve. Mark the
new valves with the replacement location.
Inspect the end of the valve stem for flatness.
If required, resurface the valve end.
