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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 2.4L) >> Repair Instructions - On Vehicle >> Camshaft Position Intake Actuator Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Timing Chain & Camshaft Position Actuator
    GM1578297Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure that the alignment mark made previously on the intake camshaft actuator is still aligned properly with the mark on the timing chain.

  1. Install the timing chain onto the intake camshaft actuator.
  2. Align the intake camshaft actuator alignment mark made previously with the timing chain mark and install the actuator onto the camshaft rotating the exhaust camshaft clockwise, if required.
  3. Install a NEW intake camshaft actuator bolt (1) until snug.
    4. Fig 2: View Of Timing Chain & Chain Retention Tool
    GM2066475Courtesy of GENERAL MOTORS COMPANY
  4. Remove the timing chain retention tool (1) from the intake side of the timing chain.
    5. Fig 3: Identifying Timing Chain & Chain Retention Tool
    GM2134127Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure that the alignment mark previously on the intake camshaft actuator is still aligned properly with the timing chain. If the mark made previously on the intake camshaft actuator is not aligned properly, refer to Camshaft Timing Chain, Sprocket, and Tensioner Replacement .

  5. Remove the timing chain retention tool (1) from the exhaust side of the timing chain.
    6. NOTE:

    Failure to reset the tensioner will allow the tensioner to over extend. limiting the timing chain life.

  6. Reset and install the timing chain tensioner. Refer to Timing Chain Tensioner Replacement .
    7. Fig 4: Loosening/Tightening Camshaft Actuator Retainer Bolts
    GM2066456Courtesy of GENERAL MOTORS COMPANY
  7. Install the EN-48953  retention tool (1) .
  8. Install the camshaft actuator retainer bolts and tighten to 10 N.m (89 lb in).
  9. Tighten the NEW camshaft actuator bolt to 30 N.m (22 lb ft) plus an additional 100 degrees using the EN-45059  meter.
    10. NOTE:

    You must have the EN-48953  retention tool installed to perform this procedure.

  10. To release the tensioner apply a counterclockwise rotational torque to the crankshaft balancer bolt of 45 N.m (33 lb ft).
  11. Remove the EN-48953  retention tool (1).
    12. Fig 5: Upper Timing Chain Guide
    GM2660876Courtesy of GENERAL MOTORS COMPANY
  12. Install the upper timing chain guide (2) and bolts (1) and tighten to 10 N.m (89 lb in).
  13. Install the spark plugs. Refer to Spark Plug Replacement .
  14. Install the camshaft cover. Refer to Camshaft Cover Replacement (LUK)  or Camshaft Cover Replacement (LEA) .
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