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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1020 (Engine Mechanical - 6.6L (LLY)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Camshaft Removal

Camshaft Removal

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required 

J 7872  Dial indicator set.

  1. Measure the camshaft end play using J 7872  .
    • The production value is 0.050-0.114 mm (0.002-0.0045 in) and service limit is 0.20 mm (0.008 in).
    • Replace the camshaft or the camshaft thrust plate if the measured value exceeds the service limit.
    2. Fig 1: Measuring Camshaft End Play Using J 7872
    GM663816Courtesy of GENERAL MOTORS CORP.
  2. Block the crankshaft from turning with a wooden handle.
    3. Fig 2: Blocking Crankshaft Using Wooden Handle
    GM660539Courtesy of GENERAL MOTORS CORP.
  3. Loosen the camshaft gear bolt and leave the bolt finger tight.
  4. Remove the camshaft exciter ring bolts.
  5. Remove the camshaft exciter ring.
  6. Remove the camshaft thrust plate bolts through the holes in the camshaft gear.
    7. Fig 3: View Of Camshaft Exciter Ring & Camshaft Thrust Plate Bolts
    GM663091Courtesy of GENERAL MOTORS CORP.
    Fig 4: View Of Camshaft W/Camshaft Gear Attached
    GM663093Courtesy of GENERAL MOTORS CORP.
  7. Remove the camshaft with the camshaft gear attached.
  8. Remove the camshaft gear bolt and washer.
  9. Remove the camshaft gear.
  10. Remove the camshaft thrust plate.
    11. Fig 5: View Of Camshaft, Camshaft Gear & Camshaft Thrust Plate
    GM660540Courtesy of GENERAL MOTORS CORP.
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