1. Remove both cylinder heads (2). Refer to CYLINDER HEAD, REMOVAL.
CAUTION: The 6.4L Multi Displacement System (MDS) engine uses both standard roller lifters and deactivating roller lifters. The deactivating roller lifters must be used in cylinders 1, 4, 6, 7. The deactivating lifters can be identified by the two holes in the side of the lifter body, for the latching pins.
CAUTION: Whenever the camshaft is replaced, all lifters must be replaced. If the lifter and retainer assemblies are to be reused, identify the lifters to ensure installation in their original location or engine damage could result.
CAUTION: The lifter and retainer assembly must be installed as a unit.
2. Remove the lifters (2) and retainer (1) as an assembly. Refer to LIFTER(S), HYDRAULIC, ROLLER, REMOVAL.
3. Remove the generator. Refer to GENERATOR, REMOVAL.
4. Remove the A/C compressor. Refer to COMPRESSOR, A/C, REMOVAL .
5. Remove the radiator (12). Refer to RADIATOR, ENGINE COOLING, REMOVAL .
6. Remove the A/C condenser (7). Refer to CONDENSER, A/C, REMOVAL .
7. Raise and support vehicle.
8. Remove the oil pan and oil pump pickup tube (2). Refer to PAN, OIL, REMOVAL.
9. Remove the engine timing cover. Refer to COVER(S), ENGINE TIMING, REMOVAL.
10. Remove the oil pump. Refer to PUMP, ENGINE OIL, REMOVAL.
11. Remove the timing chain (5) and camshaft phaser (1). Refer to CHAIN AND SPROCKETS, TIMING, REMOVAL.
12. Remove the camshaft thrust plate (1).
CAUTION: Use care when removing the camshaft, do not damage the camshaft bearings with the camshaft lobes.
13. Install a long bolt (2) into the front of the camshaft to aid in removal.
14. Remove the camshaft using care not to damage the camshaft bearings with the camshaft lobes (1).
