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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1443 (Engine Mechanical - 4.2L (Ll8)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankshaft Balancer Replacement >> Installation Procedure

Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: The crankshaft balancer does not have a key-way; so the crankshaft could turn when tightening, causing an improper torque. Make sure to follow the installation procedure to prevent damage.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the torque converter access plug in the dry part of the oil pan.
  3. Use the torque converter holding tool from the J 44226  kit and secure the torque converter while tightening the crankshaft balancer. See Special Tools and Equipment .
  4. Install a new crankshaft balancer shim GM P/N 12573950 over the crankshaft snout, against the crankshaft gear.
    5. Fig 1: Installing Crankshaft Balancer
    GM856229Courtesy of GENERAL MOTORS CORP.
  5. Using the J 41478  install and seat the crankshaft balancer. See Special Tools and Equipment .
  6. Remove the J 41478  . See Special Tools and Equipment .
    7. Fig 2: View Of Crankshaft Balancer Bolt
    GM856226Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  7. While still holding the flywheel, install the balancer washer and the bolt.

    Tighten:  Tighten the crankshaft balancer bolt to 150 N.m (110 lb ft). Use the J 36660-A in order to tighten the balancer bolt an additional 180 degrees.

  8. Remove the torque converter holding tool.
  9. Install the torque converter access plug into the oil pan.
  10. Lower the vehicle.
  11. Install the drive belt. Refer to Drive Belt Replacement  .
  12. Install the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement in Engine Cooling.
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