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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (Engine Mechanical - 4.8L, 5.3L, And 6.0L (2 Of 4)) >> On-Vehicle REPARI Instructions >> Camshaft Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the radiator support. Refer to Radiator Support Replacement .
  2. Remove the engine front cover. Refer to Engine Front Cover Replacement .
  3. Remove the valve lifters. Refer to Valve Lifter Replacement .
  4. Fig 1: View Of Camshaft Position (CMP) Sensor & Bolt
    GM260128Courtesy of GENERAL MOTORS CORP.
  5. Remove the camshaft sensor bolt and sensor.
  6. Rotate the engine until the timing marks on the crankshaft and camshaft sprockets are aligned.
  7. Fig 2: View Of Camshaft Retainer Plate
    GM63211Courtesy of GENERAL MOTORS CORP.
    NOTE: Do not turn the crankshaft assembly after the timing chain has been removed in order to prevent damage to the piston assemblies or the valves.
  8. Remove the camshaft sprocket and reposition the timing chain.
  9. Remove the camshaft retainer bolts and retainer.
  10. NOTE: All camshaft journals are the same diameter, so care must be used in removing or installing the camshaft to avoid damage to the camshaft bearings.
    Fig 3: View Of Bolts installed In Camshaft Front Bolt Holes
    GM63212Courtesy of GENERAL MOTORS CORP.
  11. Remove the camshaft.
    1. Install three M8-1.25 x 100 mm (M8-1.25 x 4.0 in) bolts to the bolt holes in the front of the camshaft.
    2. Using the bolts as a handle, carefully rotate and pull the camshaft out of the engine block.
    3. Remove the three bolts from the camshaft.
  12. If required, clean and inspect the camshaft and bearings. Refer to Camshaft and Bearings Cleaning and Inspection .