1999 GM 6.5L V8 – Timing Chain and Sprockets Replacement – Installation Procedure

Important: Make sure the timing marks are aligned.
1. Install the crankshaft sprocket on the crankshaft.

2. Install the camshaft sprocket with the timing chain to the engine block.

3. Install the fuel injection pump drive gear to the camshaft.

Notice: Refer to Fastener Notice in Caution and Notices.

4. Install the bolts from the timing chain sprocket to the camshaft.
Tighten
Tighten the bolts to 170 N-m (125 Ib ft).

5. Install the engine front cover to the engine block.
Refer to Engine Front Cover Replacement.

6. Install the water pump to the engine front cover.
Refer to Water Pump Replacement (Diesel) in Engine Cooling.

7. Install the crankshaft balancer to the crankshaft.
Refer to Crankshaft Balancer Replacement.

8. Install the lower fan shroud to the radiator. Refer to Fan Shroud Replacement (Lower) in Engine Cooling.

9. Install the drive belt on the drive pulleys. Refer to Drive Belt Replacement (6.5L Drive Belt).

10. Install the upper fan shroud to the radiator. Refer to Fan Shroud Replacement (Upper) in Engine Cooling.

11. Connect both the battery negative cables to the batteries. Refer to Battery Cable in Engine Electrical.

12. Perform the TDC off set timing procedure. Refer to TDC Offset Adjustment in Engine Controls-6.5L.

 

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