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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1023 (Engine Mechanical - 6.6L (Lb7) (Repair Instructions 1 Of 4)) >> Repair Instructions (On-Vehicle & Off Vehicle - Part 1) >> On-Vehicle Repair Instructions >> Crankshaft Balancer Replacement >> Removal Procedure

Removal Procedure

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.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the right fender wheelhouse panel. Refer to Wheelhouse Panel Replacement In Body Front End.
  4. Remove the starter motor bolts and set aside. The wiring to the starter does not require removal.
    5. Fig 1: View Of Starter Motor & Bolts
    GM660305Courtesy of GENERAL MOTORS CORP.
  5. Install J 44643  in order to lock the flywheel.
    6. Fig 2: Locking Flywheel Using J 44643
    GM660308Courtesy of GENERAL MOTORS CORP.
  6. Lower the vehicle.
  7. Remove the upper and lower fan shroud. Refer to Fan Shroud Replacement - Upper (W/O M74) or Fan Shroud Replacement - Upper (W/M74) and Fan Shroud Replacement - Lower in Engine Cooling.
  8. Remove the crankshaft balancer bolt.
  9. Remove the crankshaft balancer. The balancer is a slip fit design and should slide off. If the balancer can be turned side to side the pin in the crankshaft is worn and the pin should be replaced.
    10. Fig 3: View Of Crankshaft Balancer & Bolt
    GM660310Courtesy of GENERAL MOTORS CORP.
  10. If required, clean and inspect the balancer. Refer to Crankshaft Balancer Cleaning and Inspection .
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