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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Mechanical - 1.8L (LKN)) >> Repair Instructions - On Vehicle >> Camshaft Timing Chain Adjustment >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Ensure engine is adjusted to TDC of cylinder 1 and camshafts are fixed with EN-51148  holding tool.
  2. Install the timing chain (1) along with the crankshaft sprocket (2).
    Fig 1: Timing Chain And Crankshaft Sprocket
    GM3547237Courtesy of GENERAL MOTORS COMPANY
    NOTE: Mind the chain marks.
  3. Ensure that the colored link (3) match to the arrow on the oil pump.
    Fig 2: Timing Chain Marks
    GM3011739Courtesy of GENERAL MOTORS COMPANY
  4. Ensure that the colored links (1, 2) match to the marks on the camshaft position adjuster actuators.
  5. Install the timing chain tensioner (1).
    Fig 3: Timing Chain Tensioner
    GM2968109Courtesy of GENERAL MOTORS COMPANY
  6. Install the 2 timing chain tensioner bolts (2) and tighten to 10 N.m (89 lb in).
    CAUTION: Refer to Fastener Caution .
  7. Push the timing chain guide - left side (2) in the direction of the arrow.
    Fig 4: Timing Chain Guide And Tensioner
    GM2968108Courtesy of GENERAL MOTORS COMPANY
  8. Remove the 2 mm drill bit or equivalent (3) from the tensioner (1).
  9. Remove the middle bolt (3) and the 2 outer bolts (2, 4) and remove the EN-51148  holding tool (1).
    Fig 5: Identifying Camshaft Holding Tool Bolts
    GM2968105Courtesy of GENERAL MOTORS COMPANY
  10. Install the upper timing chain guide (1).
    Fig 6: Upper Timing Chain Guide
    GM2969141Courtesy of GENERAL MOTORS COMPANY
  11. Install the upper timing chain guide bolts (2) and tighten to 7 N.m (62 lb in).
  12. Check the position of the crankshaft, camshaft and camshaft position actuator adjuster.
    1. Install the lower engine front cover with 4 bolts and the crankshaft balancer absorber.
    2. Turn crankshaft 720 degrees in the direction of engine rotation by the crankshaft balancer absorber bolt.
    3. Adjust the engine to cylinder 1 (TDC) of combustion stroke. Set crankshaft in direction of engine rotation until the markings (2, 3) line up. Rotate at the crankshaft balancer absorber bolt (1).
      Fig 7: Crankshaft Balancer Alignment Marks
      GM3213250Courtesy of GENERAL MOTORS COMPANY
    4. Install the EN-51148  holding tool (1) to camshafts and to the cylinder head.
      Fig 8: Identifying Camshaft Holding Tool Bolts
      GM2968105Courtesy of GENERAL MOTORS COMPANY
      1. Tighten the bolt (3) in the middle.
      2. Tighten the 2 outer bolts (2, 4).
    5. If EN-51148  holding tool can be installed, the engine timing is properly adjusted.
    6. Remove the middle bolt (3) and the 2 outer bolts (2, 4) and remove the EN-51148  holding tool (1).
  13. Remove the crankshaft balancer absorber and the lower engine front cover.
  14. Install the lower engine front cover. Refer to Engine Front Cover Replacement - Lower 
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