Express 2500 V8-6.6L DSL Turbo (2010)
11. Loosen the valve adjusting screws.
12. Insert a feeler gauge between the tip of the rocker arm and the valve bridge.
13. Adjust the valve clearance to 0.3 mm (0.0112 in). Refer to Valve Clearance Adjustment Specifications (See: ) to determine which valves can be
adjusted when the engine is at TDC.
14. Tighten the lock nut to 22 Nm (16 lb ft).
15. Install the upper valve rocker arm covers. Refer to Valve Rocker Arm Upper Cover Replacement - Left Side (See: Engine, Cooling and
Exhaust/Engine/Cylinder Head Assembly/Valve Cover/Service and Repair/Valve Rocker Arm Upper Cover Replacement - Left Side) and Valve
Rocker Arm Upper Cover Replacement - Right Side (LMM) (See: Engine, Cooling and Exhaust/Engine/Cylinder Head Assembly/Valve
Cover/Service and Repair/Valve Rocker Arm Upper Cover Replacement - Right Side).
16. Install the fan clutch. Refer to Fan Clutch Replacement (See: Engine, Cooling and Exhaust/Cooling System/Radiator Cooling Fan/Fan
Clutch/Service and Repair).
17. Install the upper fan shroud. Refer to Engine Coolant Fan Upper Shroud Replacement (4.3L, 4.8L, 5.3L, 6.0L, 6.2L, 7.0L) (See: Engine, Cooling
and Exhaust/Cooling System/Fan Shroud/Service and Repair/Engine Coolant Fan Upper Shroud Replacement) Engine Coolant Fan Upper Shroud
Replacement (Diesel) (See: Engine, Cooling and Exhaust/Cooling System/Fan Shroud/Service and Repair/Engine Coolant Fan Upper Shroud
Replacement).
18. Install the engine cover. Refer to Engine Cover Replacement (See: Body and Frame/Access Cover/Service and Repair).
