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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 Position Actuator Replacement (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. The camshaft position actuators must be installed on the marked position (2) of the camshaft timing chain (1).
    Fig 2: Actuator Marks Stand At 12 O'clock When Cylinder 1 Is At Top Dead Center
    GM3689061Courtesy of GENERAL MOTORS COMPANY
  3. Install the EN 51632  camshaft locking tool.
    Fig 3: Camshaft Locking Tool
    GM4243436Courtesy of GENERAL MOTORS COMPANY
  4. Install the exhaust camshaft position actuator (2).
    Fig 4: Exhaust Camshaft Position Actuator Bolt
    GM3689070Courtesy of GENERAL MOTORS COMPANY
  5. Install the exhaust camshaft position actuator bolt (1) and tighten to:
    CAUTION: Refer to Fastener Caution .
    CAUTION: Refer to Torque-to-Yield Fastener Caution .
    NOTE: Counterhold the camshaft with EN 51632  camshaft locking tool.
    1. First pass to 20 N.m (15 lb ft)
    2. Final pass to an additional 90 degrees using the EN-45059  meter
  6. Install the intake camshaft position actuator (2).
    Fig 5: Intake Camshaft Position Actuator Bolt
    GM3689069Courtesy of GENERAL MOTORS COMPANY
  7. If not enough slack on camshaft timing chain is present to install the intake camshaft actuator remove the tension of the timing chain tensioner. Refer to Camshaft Timing Chain Adjustment (L5Q) .
  8. Install the intake camshaft position actuator bolt (1) and tighten to:
    CAUTION: Refer to Torque-to-Yield Fastener Caution .
    1. First pass to 20 N.m (15 lb ft)
    2. Final pass to an additional 90 degrees using the EN-45059  meter
  9. Remove the EN 51632  camshaft locking tool.
  10. Remove the EN 51691  retainer.
    Fig 6: Timing Chain Retainer Tool
    GM4121412Courtesy of GENERAL MOTORS COMPANY
  11. Install the timing chain upper guide. Refer to Timing Chain Upper Guide Replacement .
  12. Check the position of the crankshaft, camshaft and camshaft position actuator.
  13. Turn crankshaft 720 degrees in the direction of engine rotation by the crankshaft balancer bolt (3).
    Fig 7: Crankshaft Balancer Markings
    GM3682494Courtesy of GENERAL MOTORS COMPANY
  14. Adjust the engine to cylinder 1 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).
  15. Install the EN 51632  camshaft locking tool (1).
    Fig 8: Camshaft Locking Tool And Camshaft Position Actuator Bolts
    GM4121386Courtesy of GENERAL MOTORS COMPANY
  16. If the EN 51632  camshaft locking tool (1) can be installed, the engine timing is properly adjusted.
  17. Install the camshaft cover. Refer to Camshaft Cover Replacement (L5Q) .
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