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Home >> Chevrolet >> 2015 >> Camaro LS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 6.2L (L99 LS3 LSA) Or 7.0L (LS7) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Crankshaft Balancer Replacement (LS7) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Flywheel Holder
    GM1199283Courtesy of GENERAL MOTORS COMPANY
    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 is used only during the first pass of the balancer installation procedure. Install a NEW crankshaft balancer bolt and tighten as described in the second, third and fourth passes of the balancer bolt tightening procedure.
  1. Install the J 42386-A  flywheel holding tool and bolts.

    Use one M10 - 1.5 x 120 mm and one M10 - 1.5 x 45 mm bolt for proper tool operation. Tighten the J 42386-A  flywheel holding tool bolts to 50 N.m (37 lb ft).

    2. Fig 2: Marking Crankshaft Balancer & End Of Crankshaft
    GM506138Courtesy of GENERAL MOTORS COMPANY
  2. Using the old balancer as a reference, mark or scribe the new balancer in the same location, if applicable.
    3. NOTE:

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

  3. Position the balancer onto the end of the crankshaft.
    4. Fig 3: Crankshaft Balancer Installation Tools
    GM1552514Courtesy of GENERAL MOTORS COMPANY
  4. Use the J 41665  crankshaft balancer and sprocket installer (2) and the J 41478  crankshaft front oil seal installer (1) in order to install the balancer.
    1. Assemble the J 41478  crankshaft front oil seal installer (1), nut, washer and the J 41665  crankshaft balancer and sprocket installer (2).

      Insert the smaller end of the J 41665  crankshaft balancer and sprocket installer into the front of the balancer.

    2. Use a wrench and hold the hex end of the J 41478  crankshaft front oil seal installer.
    3. Use a second wrench and rotate the installation tool nut clockwise until the balancer is started onto the crankshaft.
    4. Remove the J 41665  crankshaft balancer and sprocket installer and reverse the installation tool.

      Position the larger end of the J 41665  crankshaft balancer and sprocket installer against the front of the balancer.

    5. Use a wrench and hold the end of the J 41478  crankshaft front oil seal installer.
    6. Use a second wrench and rotate the installation tool nut clockwise until the balancer is installed onto the crankshaft.
    7. Remove the balancer installation tool.
    5. Fig 4: Crankshaft Balancer Bolt
    GM1408847Courtesy of GENERAL MOTORS COMPANY
  5. Install the used crankshaft balancer bolt (1) and tighten to 330 N.m (240 lb ft).
  6. Remove the used crankshaft balancer bolt.
    7. Fig 5: Identifying Hub To Crankshaft Distance
    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.

  7. Measure for a correctly installed balancer.

    If the balancer is not installed to the proper dimensions, install the EN 47812  installer bolt and the J 41665  crankshaft balancer and sprocket installer and repeat the installation procedure.

    8. Fig 6: Crankshaft Balancer Bolt
    GM1408847Courtesy of GENERAL MOTORS COMPANY
  8. Install the NEW crankshaft balancer bolt (1).
    1. Tighten the crankshaft balancer bolt to 150 N.m (110 lb ft).
    2. Loosen the crankshaft balancer bolt 360 degrees.
    3. Tighten the crankshaft balancer bolt to 80 N.m (59 lb ft).
    4. Tighten the crankshaft balancer bolt a final pass to 200 degrees using the J 45059  angle meter.
  9. Remove the J 42386-A  flywheel holding tool.
  10. Install the starter motor. Refer to Starter Replacement (L99, LS3, LSA, LS7) .
  11. Install the accessory drive belt. Refer to Drive Belt Replacement - Accessory (LS7) .
  12. Install the oil tank. Refer to Oil Tank Replacement .
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