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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 Replacement (LV7) >> Removal Procedure

Removal Procedure

  1. Remove the camshaft cover. Refer to Camshaft Cover Replacement (LV7) .
  2. GM3682494Courtesy of GENERAL MOTORS COMPANY

    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).

  3. GM4230624Courtesy of GENERAL MOTORS COMPANY

    Install the EN-51632  holder (1).

  4. Remove the engine front cover. Refer to Engine Front Cover Replacement (LV7) .
  5. Remove the timing chain upper guide. Refer to Timing Chain Upper Guide Replacement .
  6. GM4091101Courtesy of GENERAL MOTORS COMPANY

    The engine has one of the two tensioner designs (1, 2). Each design has a different release mechanism and position.

  7. GM3689091Courtesy of GENERAL MOTORS COMPANY

    Fix the timing chain tensioner with design 1 (1) in service position:

    1. GM3903235Courtesy of GENERAL MOTORS COMPANY

      Slightly release tension from the piston (2) until bar (1) can be unlocked by rotating the lever (3) in direction of arrow.

    2. GM3936517Courtesy of GENERAL MOTORS COMPANY

      Entirely push back the piston (1) until the tensioner lever (2) cannot be locked in this position.

    3. GM3936518Courtesy of GENERAL MOTORS COMPANY

      Release tension from the piston (1) until it releases for three ratchets. The three ratchets can be noticed by the click noises.

    4. GM3936519Courtesy of GENERAL MOTORS COMPANY

      Apply tension to the piston until the lever (1) is rotated back into the locking position where the bore in the lever aligns with the bore in the tensioner housing.

    5. Fix the lever in this position with a suitable fixing pin (2).
    6. GM4091102Courtesy of GENERAL MOTORS COMPANY

      The style of tensioner design 2 (1) can be released by using a punch and pressing on the release clip (2).

    7. Secure the timing chain tensioner with suitable sized drill bit (3).
  8. GM3977663Courtesy of GENERAL MOTORS COMPANY

    Remove the timing chain tensioner shoe bolt (1).

  9. Remove the timing chain tensioner shoe (2).
  10. GM3689090Courtesy of GENERAL MOTORS COMPANY

    Ensure the correct fixation of the tool (3).

  11. Remove the 2 timing chain tensioner bolt (4).
  12. Remove the timing chain tensioner (1).
  13. Remove and DISCARD the gasket (2).
  14. GM3977678Courtesy of GENERAL MOTORS COMPANY

    Remove the timing chain (1).