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Home >> GMC >> 1993 >> Forward Control 7.4 N >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 7.4L V8 - VIN [N] >> Removal & Installation >> Timing Chain & Sprockets >> Removal

Timing Chain & Sprockets: Removal

  1. Disconnect battery. Drain cooling system. If necessary, remove radiator shroud. Remove accessory drive belts, fan and pulley. Remove crankshaft damper bolt. Using Damper Puller/Installer (J-39046), remove crankshaft damper.
  2. Remove all mounting brackets and coolant hoses attached to water pump. Remove water pump. Remove oil pan. See OIL PAN  under REMOVAL & INSTALLATION. Remove front cover and gasket.
  3. Rotate crankshaft until timing marks on camshaft and crankshaft sprockets are aligned. See Figure. Remove camshaft sprocket and timing chain. To remove crankshaft sprocket, use Sprocket Puller (J-1619).
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