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Installation Procedure

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • The crankshaft balancer installation and bolt tightening involves a four stage tightening process. The first pass ensures that the balancer is installed completely onto the crankshaft. The second, third, and fourth passes tighten the NEW bolt to the proper torque.
  • The used crankshaft balancer bolt will be used ONLY during the first pass of the balancer installation procedure. Install a NEW bolt and tighten as described in the second, third and fourth passes of the balancer bolt tightening procedure.
    Fig 1: Crankshaft Balancer
    GM3633322Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The balancer should be positioned onto the end of the crankshaft as straight as possible prior to tool installation.

  1. Position the crankshaft balancer (1) onto the end of the crankshaft.
    2. Fig 2: Installing Balancer Using Special Tools
    GM1658286Courtesy of GENERAL MOTORS COMPANY
  2. Install the J 41665  crankshaft balancer and sprocket installer and the threaded rod from the J 41478  crankshaft front oil seal installer to crankshaft balancer and install the balancer.
    1. Assemble the threaded rod, nut, washer and installer. Insert the smaller end of the installer into the front of the balancer.
    2. Use a wrench and hold the hex end of the threaded rod.
    3. Use a second wrench and rotate the installation tool nut clockwise until the balancer is started onto the crankshaft.
    4. Remove the tool and reverse the installation tool.

      Position the larger end of the installer against the front of the balancer.

    5. Use a wrench and hold the hex end of the threaded rod.
    6. Use a second wrench and rotate the installation tool nut clockwise until the balancer is installed onto the crankshaft.
    7. Remove the J 41665  crankshaft balancer and sprocket installer and the threaded rod.
    3. Fig 3: Crankshaft Balancer Bolt
    GM3633318Courtesy of GENERAL MOTORS COMPANY
  3. Install the USED crankshaft balancer bolt (1). Tighten the USED bolt to 330 N.m (240 lb ft).
  4. Remove the USED crankshaft balancer bolt.
    5. Fig 4: Proper Balancer Installation Position
    GM63245Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The nose of the crankshaft should be recessed 2.4 - 4.48 mm (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 dimension, install the J 41665  crankshaft balancer and sprocket installer and repeat the installation procedure.
    6. Fig 5: Crankshaft Balancer Bolt
    GM3633318Courtesy of GENERAL MOTORS COMPANY
  6. Install the NEW crankshaft balancer bolt (1).
    1. Tighten the bolt to 150 N.m (110 lb ft).
    2. Loosen 360 degrees.
    3. Tighten the bolt a first pass to 80 N.m (59 lb ft).
    4. Tighten the bolt a final pass to 125 degrees using J 45059  angle meter.
    7. Fig 6: Flywheel Holding Tool
    GM3633309Courtesy of GENERAL MOTORS COMPANY
  7. Remove the J 42386-A  flywheel holding tool (1) and bolts.
  8. Install the starter motor. Refer to Starter Replacement (L96) .
  9. Install the engine coolant fan rear shroud. Refer to Engine Coolant Fan Rear Shroud Replacement (L96) .
  10. Install the A/C drive belt. Refer to Air Conditioning Compressor Belt Replacement .
  11. Perform the crankshaft position (CKP) system variation learn procedure. Refer to Crankshaft Position Variation Learn .
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