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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1018 (Engine Mechanical - 4.3L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankshaft Balancer Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply a small amount of grease to the crankshaft front cover seal sealing surface if reusing the seal.
    IMPORTANT: The length and location of the weight(s) must be the same as the original.
  2. Ensure that the crankshaft balancer weight(s) is installed in the proper location, if necessary.
    3. Fig 1: View Of Crankshaft Balancer Weights
    GM334258Courtesy of GENERAL MOTORS CORP.
    NOTE: The inertial weight section of the crankshaft balancer is assembled to the hub with a rubber type material. The correct installation procedures (with the proper tool) must be followed or movement of the inertial weight section of the hub will destroy the tuning of the crankshaft balancer.
  3. Apply a small amount of adhesive GM P/N 12346141, (Canadian P/N 10953433), or equivalent into the crankshaft balancer keyway in order to seal the crankshaft balancer keyway and crankshaft joint.
  4. Align the keyway of the crankshaft balancer with the crankshaft balancer key.
  5. Install the crankshaft balancer onto the end of the crankshaft.
    6. Fig 2: Installing Crankshaft Balancer
    GM188059Courtesy of GENERAL MOTORS CORP.
  6. Using J 23523-F  , press the crankshaft balancer onto the crankshaft.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
    1. Install the J 23523-F  plate and bolts onto the front of the crankshaft balancer.

      Tighten:  Tighten the bolts to 25 N.m (18 lb ft).

    2. Install the J 23523-F  forcing screw into the end for the crankshaft.
    3. Install the J 23523-F  bearing, the washer, and the nut onto the forcing screw.
    4. Rotate the J 23523-F  nut clockwise until the crankshaft balancer hub is completely seated against the crankshaft position sensor reluctor ring.
  7. Remove the J 23523-F  .
    8. Fig 3: Pressing The Crankshaft Balancer Onto The Crankshaf Using J 23523-F
    GM4065Courtesy of GENERAL MOTORS CORP.
  8. Install the crankshaft pulley and bolts. Finger tighten all bolts until snug in order to fully seat the pulley.
  9. Tighten the bolts.

    Tighten:  Tighten the bolts to 58 N.m (43 lb ft).

    10. Fig 4: View Of Crankshaft Pulley & Bolts
    GM188055Courtesy of GENERAL MOTORS CORP.
  10. Ensure that the crown of the crankshaft balancer washer (2) is faced away from the engine.
    11. Fig 5: Crankshaft Balancer Washer
    GM342203Courtesy of GENERAL MOTORS CORP.
  11. Install the crankshaft balancer washer and bolt.

    Tighten:  Tighten the bolt to 95 N.m (70 lb ft).

    12. Fig 6: View Of Crankshaft Balancer Washer & Bolt
    GM173172Courtesy of GENERAL MOTORS CORP.
  12. Install the cooling fan. Refer to Fan Replacement in Engine Cooling.
  13. Install the drive belt. Refer to Drive Belt Replacement .
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