LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 1.5L (LYX)) >> Repair Instructions - On Vehicle >> Camshaft Timing Chain Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove Camshaft Cover Replacement .
    2. Fig 1: Crankshaft Balancer Markings
    GM3682494Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    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.

  2. Rotate at the crankshaft balancer bolt (3).
    3. Fig 2: Camshaft Holder
    GM4091100Courtesy of GENERAL MOTORS COMPANY
  3. Install the EN-51367  holder (1).
  4. Remove Engine Front Cover Replacement 
  5. Remove Timing Chain Upper Guide Replacement 
    6. Fig 3: Tensioner Designs
    GM4091101Courtesy of GENERAL MOTORS COMPANY
  6. The engine has one of the two tensioner designs (1, 2). Each design has a different release mechanism and position.
    7. Fig 4: Timing Chain Tensioner In Service Position
    GM3689091Courtesy of GENERAL MOTORS COMPANY
  7. Fix the timing chain tensioner with design 1 (1) in service position:
      Fig 5: Releasing Tension From Piston
      GM3903235Courtesy of GENERAL MOTORS COMPANY
    1. Slightly release tension from the piston (2) until bar (1) can be unlocked by rotating the lever (3) in direction of arrow.
      2. Fig 6: Pushing Back Piston
      GM3936517Courtesy of GENERAL MOTORS COMPANY
    2. Entirely push back the piston (1) until the tensioner lever (2) cannot be locked in this position.
      3. Fig 7: Piston
      GM3936518Courtesy of GENERAL MOTORS COMPANY
    3. Release tension from the piston (1) until it releases for three ratchets. The three ratchets can be noticed by the click noises.
      4. Fig 8: Lever And Fixing Pin
      GM3936519Courtesy of GENERAL MOTORS COMPANY
    4. 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. Fig 9: Tensioner Design 2
      GM4091102Courtesy of GENERAL MOTORS COMPANY
    6. 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. Fig 10: Timing Chain Tensioner Shoe Fastener
    GM3977663Courtesy of GENERAL MOTORS COMPANY
  8. Remove Timing Chain Tensioner Shoe Bolt(1)
  9. Remove Timing Chain Tensioner Shoe(2)
    10. Fig 11: Timing Chain Tensioner Tool, Timing Chain Tensioner, Bolts And Gasket
    GM3689090Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Both tensioner designs have the same removal procedure. Each tensioner design uses a different fixing procedure and fixing tool see steps 7.1 - 7.7.

  10. Ensure the correct fixation of the tool (3) is used.
  11. Remove Timing Chain Tensioner Bolt (4)
  12. Remove Timing Chain Tensioner (1)
  13. Remove and DISCARD the gasket. (2)
    14. Fig 12: Timing Chain
    GM3977678Courtesy of GENERAL MOTORS COMPANY
  14. Remove Timing Chain (1)
  15. If reinstalling timing components, clean and inspect as needed prior to reinstalling. Camshaft Timing Chain and Sprocket Cleaning and Inspection 
scientia non olet · About LEMON Manuals