Camshaft - Installation

CAMSHAFT






CAUTION: 5.7L engines equipped with MDS uses a unique camshaft for use with the Multi Displacement System. When installing a new camshaft, the replacement camshaft must be compatible with the Multi Displacement System.

1. Lubricate camshaft lobes and camshaft bearing journals and insert the camshaft.










2. Install camshaft Tensioner plate assembly. Tighten bolts to 28 Nm (250 in. lbs.).
3. Install timing chain and sprockets Timing Chain & Sprockets - Installation.
4. Measure camshaft end playEngine Specifications. If not within limits install a new thrust plate.





5. Install the oil pump Removal and Replacement

6. Install the oil pick up tube.










7. Each tappet (2) reused must be installed in the same position from which it was removed. When camshaft is replaced, all of the tappets must be replaced.

CAUTION: Engines equipped with MDS use both standard roller tappets (2) and deactivating roller tappets (1). The deactivating roller tappets must be used in cylinders 1,4,6,7. The deactivating tappets can be identified by the two holes in the side of the tappet body (3), for the latching pins.

8. Install tappets (2) and retaining yoke assembly (1) Hydraulic Lifters - Installation.










9. Install both left and right cylinder heads (4) Cylinder Head - Installation.
10. Install push rods.





11. Install rocker armsValve Rocker Arm - Installation.





12. Install timing case cover Engine Timing Cover(s) - Installation.
13. Install the oil pan Engine Oil Pan - Installation.





14. Install cylinder head covers Cylinder Head Cover(s) - Installation.





15. Install intake manifold Intake Manifold - Installation.
16. Install the A/C compressor (2).










17. Install the generator (2).










18. Install the accessory drive belt Serpentine Accessory Drive Belt - Installation.
19. Install the radiator Engine Cooling Radiator - Installation.
20. Install the air cleaner assembly.
21. Install the battery negative cable.
22. Refill coolant Service and Repair.
23. Refill engine oil.
24. Start engine and check for leaks.