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Home >> Chevrolet >> 2018 >> Spark ACTIV, Automatic CVT Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 1.0L (L5Q) Or 1.4L (LV7) - Repair Instructions - On Vehicle >> Repair Instructions - On Vehicle >> Camshaft Timing Chain Adjustment (LV7) >> Installation Procedure

Installation Procedure

  1. GM3970761Courtesy of GENERAL MOTORS COMPANY

    Install the exhaust camshaft position actuator (1).

  2. Readjust the camshaft until the dowel pin (2) engage to camshaft (3).
  3. CAUTION:

    Refer to Fastener Caution .

    NOTE:

    Counterhold the camshaft with a suitable tool.

    NOTE:

    Refer to Special Tools .

  4. Install the exhaust camshaft position actuator bolt (4) and tighten to:
    1. First pass to 20 N.m (15 lb ft)
    2. Final pass to an additional 90 degrees using EN-45059  meter.
  5. GM4091103Courtesy of GENERAL MOTORS COMPANY

    The marks (2) of the camshaft position actuators must be positioned approximately at the 12 O'clock position.

  6. GM4230625Courtesy of GENERAL MOTORS COMPANY

    Remove EN-51691  retainer (1, 2).

  7. GM4230624Courtesy of GENERAL MOTORS COMPANY

    Remove EN-51632  holder (1).

  8. GM3903237Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The following step shows the tensioner design 1.

    Remove the pin from the timing chain tensioner (1).

  9. GM3682494Courtesy of GENERAL MOTORS COMPANY

    Turn crankshaft 720 degrees in the direction of engine rotation by the crankshaft balancer bolt (2).

  10. Adjust the engine to cylinder 1 top dead center (TDC) of combustion stroke. Set crankshaft in direction of engine rotation until the markings (1, 2) line up. Rotate at the crankshaft balancer bolt (3).
  11. GM4230624Courtesy of GENERAL MOTORS COMPANY

    Install the EN-51632  holder (1).

  12. If the EN-51632  holder (1) can be installed, the engine timing is properly adjusted.
  13. Remove the EN-51632  holder (1).
  14. GM3689096Courtesy of GENERAL MOTORS COMPANY

    Install the seal ring (2).

  15. Install the engine front cover hole plug (1) and tighten to 50 N.m (37 lb ft).
  16. Install the front bumper fascia opening lower cover. Refer to Front Bumper Fascia Opening Lower Cover Replacement .
  17. Lower the vehicle.
  18. Install the timing chain upper guide. Refer to Timing Chain Upper Guide Replacement .
  19. Install the camshaft cover. Refer to Camshaft Cover Replacement (LV7) .