GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC P42 Commercial Chassis 🢒 Engine 🢒 Engine Mechanical - 6.5L 🢒 Timing Chain and Camshaft Sprocket Removal

    Object Number: 520268 Size: SH
  1. Remove the camshaft sprocket retaining bolt and washer.

    2. Object Number: 358425 Size: SH
  2. Remove the fuel injection pump drive gear.

    3. Object Number: 59876 Size: SH

    Important: Do not damage the square bosses of the crankshaft sprocket during removal.

  3. Remove the timing chain, camshaft sprocket and crankshaft sprocket assembly.

    4. Object Number: 59879 Size: SH
  4. Remove the fuel injection pump drive gear woodruff key.
  5. Remove the camshaft sprocket woodruff key.
  6. Remove the crankshaft sprocket woodruff key.