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Home >> GMC >> 2011 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Engine Mechanical - 2.8L Or 3.0L - Repair Instructions - Off Vehicle (4 Of 5)) >> Primary Camshaft Intermediate Drive Chain Tensioner Installation >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2010 Cadillac SRX. 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 primary camshaft drive chain tensioner (3) is being installed.
    2. Fig 2: View Of Primary Camshaft Drive Chain Tensioner Plunger & J 45027
    GM1306417Courtesy of GENERAL MOTORS CORP.
  2. Using the EN-45027:  tool, reset the primary camshaft drive chain tensioner plunger.
    3. Fig 3: View Of Plunger & Primary Camshaft Drive Chain Tensioner Body
    GM1306418Courtesy of GENERAL MOTORS CORP.
  3. Install the plunger into the primary camshaft drive chain tensioner body.
    4. Fig 4: Identifying Special Tools - EN 46112
    GM1306420Courtesy of GENERAL MOTORS CORP.
  4. Compress the plunger into the body and lock the primary camshaft drive chain tensioner by inserting the EN-46112:  pins into the access hole in the side of the primary camshaft drive chain tensioner body.
  5. Slowly release pressure on the primary camshaft drive chain tensioner. The primary camshaft drive chain tensioner should remain compressed.
    6. Fig 5: Identifying Primary Camshaft Drive Chain Tensioner Gasket
    GM1306422Courtesy of GENERAL MOTORS CORP.
  6. Install a NEW primary camshaft drive chain tensioner gasket to the primary camshaft drive chain tensioner.
  7. Install the primary camshaft drive chain tensioner bolts through the primary camshaft drive chain tensioner and gasket.
  8. Ensure the primary camshaft drive chain tensioner mounting surface on the engine block does not have any burrs or defects that would degrade the sealing of the NEW primary camshaft drive chain tensioner gasket.
    9. Fig 6: View Of Primary Camshaft Drive Chain Tensioner & Bolts
    GM1853226Courtesy of GENERAL MOTORS CORP.
  9. Place the primary camshaft drive chain tensioner into position and loosely install the bolts to the block.
    10. Fig 7: Locating Primary Camshaft Drive Chain Tensioner Gasket Tab
    GM1306423Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  10. Verify the proper placement of the primary camshaft drive chain tensioner gasket tab (1).
    1. First Pass

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

    2. Final Pass

      Tighten the primary camshaft drive chain tensioner bolts to 25 N.m (18 lb ft) .

    11. Fig 8: View Of Primary Camshaft Drive Chain Tensioner
    GM1853233Courtesy of GENERAL MOTORS CORP.
  11. Release the primary camshaft drive chain tensioner by pulling out the EN-46112:  pins and unlocking the tensioner plunger.
  12. Verify the primary and left secondary camshaft drive chain timing mark alignments. Refer to Timing Chain Alignment Diagram - Stage One.
    13. Fig 9: Identifying Special Tools - EN 46105-1
    GM1306426Courtesy of GENERAL MOTORS CORP.
  13. Remove the EN 48383-1 from the rear of the left camshafts.
    14. Fig 10: Identifying Stage 1 & Stage 2 Alignment Positions
    GM1866953Courtesy of GENERAL MOTORS CORP.
  14. Using the EN-48589:  socket, rotate the crankshaft and crankshaft sprocket from the stage 1 alignment position (1) to the stage 2 alignment position (2), 115 crankshaft degrees, in order to install the right secondary camshaft drive chain components.
    15. Fig 11: Identifying Special Tool - EN 46105-2 Installed To Left Camshafts
    GM1306428Courtesy of GENERAL MOTORS CORP.
  15. Install the EN 48383-2 onto the rear of the left camshafts.
    16. Fig 12: Identifying Special Tool - EN 46105-1 Installed To Right Camshafts
    GM946124Courtesy of GENERAL MOTORS CORP.
  16. Install the EN 48383-3 onto the rear of the right camshafts.
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