RAM 2500 Truck 2WD L6-6.7L DSL Turbo (2010)
Valve Clearance: Adjustments
VALVE LASH ADJUSTMENT AND VERIFICATION
NOTE: To obtain accurate readings, valve lash measurements and adjustments should only be performed when the engine coolant
temperature is less than 60° C (140° F.).
The 24-valve overhead system is a "low-maintenance" design. Routine adjustments are no longer necessary, however, measurement should still take
place when troubleshooting performance problems, or upon completion of a repair that includes removal and installation of the valve train components
or injectors.
1. Disconnect battery negative cables.
2. Remove cylinder head cover See: Engine, Cooling and Exhaust/Engine/Cylinder Head Assembly/Valve Cover/Service and Repair/Removal and
Replacement/Cylinder Head Cover(s) - Removal.
3. Using the barring tool 7471B, rotate crankshaft to align damper TDC mark to 12:00 o'clock position.
a. If both number one cylinder rocker levers are loose, continue to next step.
b. If both number one cylinder rocker levers are not loose, rotate crankshaft 360°.
4. With the engine in this position, valve lash can be measured at the following rocker arms: INTAKE 1-2-4 / EXHAUST 1-3-5. Measure the valve
lash by inserting a feeler gauge between the rocker arm socket and crosshead. Refer to chart for the correct specifications. If the measurement falls
within the limits, adjustment/resetting is not necessary. If measurement finds the lash outside of the limits, adjustment/resetting is required.
VALVE LASH LIMIT CHART
