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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Engine Mechanical - 1.4L (LV7) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Camshaft Timing Chain Adjustment (LV7) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the exhaust camshaft position actuator (1).
    Fig 1: Intake Camshaft Position Actuator And Bolt
    GM3970761Courtesy of GENERAL MOTORS COMPANY
  2. Readjust the camshaft until the dowel pin (2) engage to camshaft (3).
  3. Install the exhaust camshaft position actuator bolt (4) and tighten to:
    CAUTION: Refer to Fastener Caution .
    NOTE: Counterhold the camshaft with a suitable tool.
    NOTE: Refer to Special Tools .
    1. First pass to 20 N.m (15 lb ft)
    2. Final pass to an additional 90 degrees using EN-45059  meter.
  4. The marks (2) of the camshaft position actuators must be positioned approximately at the 12 O'clock position.
    Fig 2: Camshaft Position Actuator Marks And Timing Chain Marks
    GM4091103Courtesy of GENERAL MOTORS COMPANY
  5. Remove EN-51691  retainer (1, 2).
    Fig 3: Timing Chain Retainer Tool
    GM4230625Courtesy of GENERAL MOTORS COMPANY
  6. Remove EN-51632  holder (1).
    Fig 4: Camshaft Locking Tool
    GM4230624Courtesy of GENERAL MOTORS COMPANY
  7. Remove the pin from the timing chain tensioner (1).
    Fig 5: Timing Chain Tensioner In Lock Position
    GM3903237Courtesy of GENERAL MOTORS COMPANY
    NOTE: The following step shows the tensioner design 1.
  8. Turn crankshaft 720 degrees in the direction of engine rotation by the crankshaft balancer bolt (2).
    Fig 6: Crankshaft Balancer Markings
    GM3682494Courtesy of GENERAL MOTORS COMPANY
  9. 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).
  10. Install the EN-51632  holder (1).
    Fig 7: Camshaft Locking Tool
    GM4230624Courtesy of GENERAL MOTORS COMPANY
  11. If the EN-51632  holder (1) can be installed, the engine timing is properly adjusted.
  12. Remove the EN-51632  holder (1).
  13. Install the seal ring (2).
    Fig 8: Engine Front Cover, Hole Plug And Seal Ring
    GM3689096Courtesy of GENERAL MOTORS COMPANY
  14. Install the engine front cover hole plug (1) and tighten to 50 N.m (37 lb ft).
  15. Install the front bumper fascia opening lower cover. Refer to Front Bumper Fascia Opening Lower Cover Replacement .
  16. Lower the vehicle.
  17. Install the timing chain upper guide. Refer to Timing Chain Upper Guide Replacement .
  18. Install the camshaft cover. Refer to Camshaft Cover Replacement (LV7) .
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