LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1021 (Engine Mechanical - 8.1L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Timing Chain and Sprockets Removal

Timing Chain and Sprockets 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 42846  Crankshaft Protector Button. See Special Tools and Equipment .

  1. Measure the camshaft timing chain free play. If the chain can be moved back and forth in excess of 16 mm (0.625 in), replace the chain and sprockets.
  2. Remove the camshaft sprocket bolts.
  3. Remove the camshaft sprocket and the timing chain.
    4. Fig 1: View Of Camshaft Sprocket, Timing Chain & Bolts
    GM1150711Courtesy of GENERAL MOTORS CORP.
  4. Install the J 42846  (1) into the end of the crankshaft.
  5. Remove the crankshaft sprocket using a three jaw puller (2).
    6. Fig 2: Removing Crankshaft Sprocket Using J 42846
    GM639535Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals