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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1537 (Engine Mechanical (Repair Instructions 1 Of 3) - 5.7L) >> Repair Instructions (On-Vehicle & Off-Vehicle - Part 1 >> On-Vehicle Repair Instructions >> Camshaft Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Oil Pan-To-Front Cover Bolts & Oil Pan-To-Rear Cover Bolts
    GM701560Courtesy of GENERAL MOTORS CORP.
  1. Remove the engine assembly. Refer to Engine Replacement .
  2. Remove the crankshaft balancer. Refer to Crankshaft Balancer Removal .
  3. Remove the oil level indicator tube. Refer to Oil Level Indicator and Tube Removal .
  4. Remove the left and right exhaust manifolds Refer to Exhaust Manifold Removal - Left  and Exhaust Manifold Removal - Right .
  5. Remove the water pump. Refer to Water Pump Removal .
  6. Remove the intake manifold. Refer to Intake Manifold Removal .
  7. Remove the coolant air bleed pipe. Refer to Coolant Air Bleed Pipe Removal .
  8. Remove the left and right valve rocker arm covers. Refer to Valve Rocker Arm Cover Removal - Left and Valve Rocker Arm Cover Removal - Right .
  9. Remove the valve rocker arms and push rods. Refer to Valve Rocker Arm and Push Rod Removal .
  10. Remove the left and right cylinder heads. Refer to Cylinder Head Removal - Left and Cylinder Head Removal - Right .
  11. Remove the valve lifters. Refer to Valve Lifter Removal .
  12. Remove the oil pan-to-front cover bolts (2).
    13. Fig 2: View Of Front Cover & Gasket
    GM64278Courtesy of GENERAL MOTORS CORP.
  13. Remove the front cover bolts.
  14. Remove the front cover and gasket. Discard the old gasket.
    15. Fig 3: View Of Camshaft & Crankshaft Sprockets Timing Marks Aligned
    GM156158Courtesy of GENERAL MOTORS CORP.
  15. Rotate the engine in order to align the timing marks.
    16. Fig 4: Camshaft Sprocket, Bolt & Timing Chain
    GM63263Courtesy of GENERAL MOTORS CORP.
  16. Remove the camshaft sprocket bolts.
  17. Remove the timing chain from the camshaft sprocket, and allow the timing chain to rest on the crankshaft sprocket.
  18. Remove the camshaft. Refer to Camshaft Removal .
  19. Clean and inspect the camshaft and bearings. Refer to Camshaft and Bearings Cleaning and Inspection .
    20. Fig 5: Oil Pan-To-Front Cover Bolts & Oil Pan-To-Rear Cover Bolts
    GM701560Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Rear cover removal is not required, if the camshaft bearings are not being replaced.
  20. If the camshaft bearings need to be replaced, remove the oil pan-to rear cover bolts (1).
    21. Fig 6: View Of Rear Cover, Bolts & Gasket
    GM64282Courtesy of GENERAL MOTORS CORP.
  21. Remove the rear cover bolts.
  22. Remove the rear cover and gasket. Discard the gasket.
  23. Remove the camshaft bearings, if required. Refer to Camshaft Bearing Removal .
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