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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 162 (Engine Mechanical - 3.6L (Ly7) (Repair Instructions - 4 Of 5)) >> Off-Vehicle Repair Instructions (Part 3) >> Secondary Camshaft Drive Chain Tensioner Installation - Left >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Left & Right Secondary Camshaft Drive Chain Tensioner & Primary Camshaft Drive Chain Tensioner
    GM1306381Courtesy of GENERAL MOTORS CORP.
  1. Ensure that the left secondary camshaft drive chain tensioner (2) is being installed.
    2. Fig 2: Resetting Left Secondary Camshaft Drive Chain Tensioner Plunger With J 45027
    GM1306382Courtesy of GENERAL MOTORS CORP.
  2. Using the J 45027  , reset the left secondary camshaft drive chain tensioner plunger. See Special Tools .
    3. Fig 3: Installing Plunger Into Left Secondary Camshaft Drive Chain Tensioner Body
    GM1306383Courtesy of GENERAL MOTORS CORP.
  3. Install the plunger into the left secondary camshaft drive chain tensioner body.
    4. Fig 4: Inserting EN 46112 Into Access Hole In Side Of Left Secondary Camshaft Drive Chain Tensioner Body
    GM1306384Courtesy of GENERAL MOTORS CORP.
  4. Compress the plunger into the body and lock the left secondary camshaft drive chain tensioner by inserting the EN 46112  into the access hole in the side of the left secondary camshaft drive chain tensioner body. See Special Tools .
  5. Slowly release pressure on the left secondary camshaft drive chain tensioner. The left secondary camshaft drive chain tensioner should remain compressed.
    6. Fig 5: Identifying Left Secondary Camshaft Drive Chain Tensioner Gasket
    GM1306386Courtesy of GENERAL MOTORS CORP.
  6. Install a NEW left secondary camshaft drive chain tensioner gasket to the left secondary camshaft drive chain tensioner.
  7. Install the left secondary camshaft drive chain tensioner bolts through the left secondary camshaft drive chain tensioner and gasket.
  8. Ensure the left secondary camshaft drive chain tensioner mounting surface on the left cylinder head does not have any burrs or defects that would degrade the sealing of the NEW left secondary camshaft drive chain tensioner gasket.
    9. Fig 6: Identifying Secondary Camshaft Drive Chain Tensioner Bolts
    GM1579012Courtesy of GENERAL MOTORS CORP.
  9. Place the left secondary camshaft drive chain tensioner into position and loosely install the bolts to the block.
    10. Fig 7: Locating Left Secondary Camshaft Drive Chain Tensioner Gasket Tab
    GM1306387Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  10. Verify the proper placement of the left secondary camshaft drive chain tensioner gasket tab (1).
    1. First Pass

      Tighten:  Tighten the left secondary camshaft drive chain tensioner bolts to 5 N.m (44 lb in).

    2. Final Pass

      Tighten:  Tighten the left secondary camshaft drive chain tensioner bolts to 23 N.m (17 lb ft).

    11. Fig 8: Removing EN 46112 From Tensioner Plunger
    GM1306389Courtesy of GENERAL MOTORS CORP.
  11. Release the left secondary camshaft drive chain tensioner by pulling out the EN 46112  and unlocking the tensioner plunger. See Special Tools .
    12. Fig 9: Locating Left Secondary Camshaft Drive Chain Timing Mark & Link Alignments
    GM1586261Courtesy of GENERAL MOTORS CORP.
  12. Verify the left secondary camshaft drive chain timing mark alignments (1-6). Also refer to Camshaft Timing Drive Chain Alignment Diagram (W/Primary Inverted Tooth (IT) Chain) - Stage One.
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