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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 (L5Q) >> Installation Procedure

Installation Procedure

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  1. Locate the camshaft position actuator dowel pin (1).
    Fig 1: Camshaft Position Actuator Dowel Pin
    GM4121418Courtesy of GENERAL MOTORS COMPANY
  2. Install the intake camshaft position actuator (2).
    Fig 2: Intake Camshaft Position Actuator Bolt
    GM3689069Courtesy of GENERAL MOTORS COMPANY
  3. Install the intake camshaft position actuator bolt (1) 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 3: Actuator Marks Stand At 12 O'clock When Cylinder 1 Is At Top Dead Center
    GM3689061Courtesy of GENERAL MOTORS COMPANY
  5. Loosen the bolt (2).
    Fig 4: Timing Chain Retainer Tool
    GM4121412Courtesy of GENERAL MOTORS COMPANY
  6. Loosen the bolt (5, 6).
  7. EN 51691  timing chain retainer (1), (4).
  8. Remove EN 51632  camshaft locking tool (1).
    Fig 5: Camshaft Locking Tool And Camshaft Position Actuator Bolts
    GM4121386Courtesy of GENERAL MOTORS COMPANY
  9. Check the position of the crankshaft, camshaft and camshaft position actuator.
  10. 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
  11. 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).
  12. Install the EN 51632  camshaft locking tool (1).
    Fig 7: Camshaft Locking Tool And Camshaft Position Actuator Bolts
    GM4121386Courtesy of GENERAL MOTORS COMPANY
  13. If the EN 51632  camshaft locking tool (1) can be installed, the engine timing is properly adjusted.
  14. Install the timing chain upper guide. Refer to Timing Chain Upper Guide Replacement .
  15. Install the camshaft cover. Refer to Camshaft Cover Replacement (L5Q) .
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