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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 2.5L (LCV)) >> Repair Instructions >> Timing Chain Tensioner Replacement >> Installation Procedure

Installation Procedure

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  1. GM5358351Courtesy of GENERAL MOTORS COMPANY

    Apply pressure on the piston (1) to release tension from the pawl (3).

  2. Rotate the lever (2) counter-clockwise.
  3. Push the piston (1) inward until fully depressed, then release the lever (2).
  4. GM5358559Courtesy of GENERAL MOTORS COMPANY

    Slowly relieve tension from the piston (1) until it extends three clicks.

  5. Install a suitable pin (2) as shown to lock the tensioner.
  6. GM2812837Courtesy of GENERAL MOTORS COMPANY

    Timing Chain Tensioner Gasket (3) - Install NEW

  7. Timing Chain Tensioner (2) - Install
  8. CAUTION:

    Refer to Fastener Caution .

  9. Timing Chain Tensioner Bolt (1) - Install and tighten [2x] 25 N.m (18 lb ft)
  10. Remove the tensioner locking pin.
  11. GM2744255Courtesy of GENERAL MOTORS COMPANY

    Verify the timing links on the timing chain are properly aligned to the timing marks:

    1. The timing links (1, 2) are aligned to the appropriate timing marks on the camshaft actuators (6, 3).
    2. The unique colored link (5) is aligned to the timing mark on the crankshaft sprocket (4).
  12. Engine Front Cover - Install - Engine Front Cover Replacement