GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 SSR 🢒 Preface 🢒 Cautions and Notices 🢒 Crankshaft Balancer Replacement

Tools Required

    • J 41665 Crankshaft Balancer and Sprocket Installer
    • J 41816 Crankshaft Balancer Remover
    • J 41816-2 Crankshaft End Protector
    • J 42386-A Flywheel Holding Tool
    • J 45059 Torque Angle Meter

Removal Procedure

    Object Number: 825836 Size: SH
  1. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory .
  2. Remove the air conditioning (A/C) drive belt, if equipped. Refer to Air Conditioning Compressor Belt Replacement .
  3. Remove the cooling fan. Refer to Engine Cooling Fan Replacement in Engine Cooling.
  4. Remove the starter motor. Refer to Starter Motor Replacement in Engine Electrical.

    5. Notice: Refer to Fastener Notice in the Preface section.

    Important: 

       • Make sure that the teeth of the J 42386-A mesh with the teeth of the engine flywheel.
       • The crankshaft balancer is balanced as an individual component. It is not necessary to mark the balancer prior to removal.

  5. Install the J 42386-A and bolts.

    6. Use one M10-1.5 x 120 mm and one M10-1.5 x 45 mm bolt for proper tool operation.

    Tighten
    Tighten the J 42386-A bolts to 50 N·m (37 lb ft).


    Object Number: 260154 Size: SH
  6. Remove the crankshaft balancer bolt.

    7. Do not discard the crankshaft balancer bolt. The balancer bolt will be used during the balancer installation procedure.


    Object Number: 156164 Size: SH
  7. Use the J 41816 and J 41816-2 in order to remove the crankshaft balancer.
  8. Remove the J 41816 and the J 41816-2 from the crankshaft balancer.
  9. Clean and inspect the crankshaft balancer. Refer to Crankshaft Balancer Cleaning and Inspection .

Installation Procedure

Important: 

   • Make sure that the teeth of the J 42386-A mesh with the teeth of the engine flywheel.
   • The used crankshaft balancer bolt will be used only during the first pass of the balancer installation procedure. Install the NEW bolt and tighten as described in the second, third, and forth passes of the balancer bolt tightening sequence procedure.
   • The crankshaft balancer installation and bolt tightening involves a 4-stage tightening process. The first pass ensures that the balancer is installed completely onto the crankshaft. The second, third, and forth passes tighten the new bolt to the proper torque.


    Object Number: 260154 Size: SH
  1. Install the crankshaft balancer onto the end of the crankshaft.

    2. Object Number: 63187 Size: SH
  2. Use the J 41665 in order to install the crankshaft balancer.
    3. 2.1. Assemble the threaded rod, nut, washer and installer. Insert the smaller end of the installer into the front of the balancer.
    2.2. Use a wrench and hold the hex end of the threaded rod.
    2.3. Use a second wrench and rotate the installation tool nut clockwise until the balancer is started onto the crankshaft.
    2.4. Remove the tool and reverse the installation tool. Position the larger end of the installer against the front of the balancer.
    2.5. Use a wrench and hold the hex end of the threaded rod.
    2.6. Use a second wrench and rotate the installation tool nut clockwise until the balancer is installed onto the crankshaft.
    2.7. Remove the balancer installation tool.

    Object Number: 63245 Size: SH
  3. Install the used crankshaft balancer bolt.

    4. Tighten
    Tighten the USED crankshaft balancer bolt to 330 N·m (240 lb ft).

  4. Remove the used crankshaft balancer bolt.

    5. Important:  The nose of the crankshaft should be recessed 2.4-4.48 N·m (0.094-0.176 in) into the balancer bore.

  5. Measure for a correctly installed balancer. If the balancer is not installed to the proper dimensions, install the J 41665 and repeat the installation procedure.
  6. Install the NEW crankshaft balancer bolt.

    7. Tighten

    1. Tighten the crankshaft balancer bolt a first pass to 50 N·m (37 lb ft).
    2. Tighten the crankshaft balancer bolt a second pass to 140 degrees using J 45059 .
  7. Remove the J 42386-A and bolts.
  8. Install the starter motor. Refer to Starter Motor Replacement .
  9. Install the cooling fan. Refer to Engine Cooling Fan Replacement in Engine Electrical.
  10. Install the accessory drive belt. Refer to Drive Belt Replacement - Accessory .
  11. Install the A/C drive belt. Refer to Air Conditioning Compressor Belt Replacement .