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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 92 (Engine Mechanical - 3.6L (LF4 LGX) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Camshaft Timing Chain Components Installation (LGX) >> Left Timing Chain Installation

Left Timing Chain Installation

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Left Timing Chain
GM3979317Courtesy of GENERAL MOTORS COMPANY
Left Timing Chain Installation

Callout Component Name
1 Timing Chain - Left Side

Procedure

  1. Preassemble the crank sprocket to the left timing chain (1).
  2. Install the crank sprocket on the crankshaft while holding up the timing chain.
  3. Guide timing chain onto the guide, and not resting on the plastic side ribs.
  4. Use an open ended wrench on the cast hexagonal portion of the camshaft to rotate the camshafts, which will aid in the aligning of the timing marks.
  5. There may be more than one marking on the camshaft actuator sprocket area. Locate the (L) on the face of the actuator body. The correct timing mark can be a circle or triangle located straight inboard on the sprocket tooth in line with the (L) identifier (5 or 6).
  6. Align the left (L) exhaust camshaft position actuator sprocket alignment circle or triangle mark (6) with the camshaft drive chain timing link.
  7. Align the left (L) intake camshaft position actuator sprocket alignment circle or triangle mark (5) with the camshaft drive chain timing link.
2 Crankshaft Timing Sprocket Timing Mark
3 Timing Chain Links
4 Timing Chain Links
5 Left Intake Actuator Timing Sprocket Timing Mark
6 Left Exhaust Actuator Timing Sprocket Timing Mark