Removal - Crankshaft Sprocket
- Remove primary timing chain. See REMOVAL - TIMING CHAIN .CAUTION: Use care not to turn crankshaft while removing crankshaft sprocket, as damage to valves and or pistons could occur.
- Remove crankshaft sprocket by first installing the crankshaft damper bolt. Apply grease or equivalent to damper bolt head and position Special Tools 5048-1, 5048-6, and 8539 on sprocket and crankshaft nose. Remove sprocket using care not to rotate the crankshaft.