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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 97 (Engine Mechanical - 2.0L (LTG) Or 2.5L (LCV) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Engine Front Cover Replacement >> Installation Procedure

Installation Procedure

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: Front Crankshaft Seal
    GM2875634Courtesy of GENERAL MOTORS COMPANY
  1. If replacing or removing the crankshaft seal, use EN-50820  installer to install a NEW front crankshaft seal (1) into the engine front cover.
    2. Fig 2: Appling Bead Of Sealer Directly In Flange
    GM2875630Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • The engine front cover surface must be free of contamination prior to applying the sealer.
    • Install and align the cover within 20 minutes of applying the sealer.
    • The cover must be fastened to final torque specification within 60 minutes of applying the sealer.
    • Additional sealant is necessary to reduce the possibility of leakage where the cylinder head to engine block interface along the bead path flange on the front cover.
  2. Apply a 5 mm bead of sealer directly in the flange (1) of the engine front cover perimeter mating surface. Also apply a 5 mm bead of sealer directly to the locations indicated (2). Finally, apply a 14 mm dab of sealant at the locations indicated (3). Adhesives, Fluids, Lubricants, and Sealers (LTG)Adhesives, Fluids, Lubricants, and Sealers (LCV)
    3. Fig 3: Identifying Engine Front Cover Bolts
    GM4038931Courtesy of GENERAL MOTORS COMPANY
  3. Install the engine front cover (1).
    4. NOTE:

    Only bolts 3,5 and 6 will be replaced with NEW bolts.

  4. Install by hand 3 NEW M10 bolts (3, 5, 6) in the engine front cover, as shown.
  5. Hand start the remaining engine front cover bolts (2, 4, 7, 8).
    6. Fig 4: Engine Front Cover Bolt Tightening Sequence
    GM2726765Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    CAUTION:

    This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

  6. Tighten the engine front cover bolts in sequence to final torque twice:
    1. Tighten NEW sequence 1-3 bolts a first pass to 15 N.m (11 lb ft).
    2. Tighten NEW sequence bolts 1-3 a final pass to 130 degrees using EN-45059   Angular Meter.
    3. Tighten sequence 4-11 bolts to 25 N.m (18 lb ft).
    4. Tighten sequence 12 bolt to 25 N.m (18 lb ft).
    5. Tighten sequence 13-15 bolts to 25 N.m (18 lb ft).
    6. Tighten sequence 16-17 bolts to 10 N.m (89 lb in).
    7. Tighten sequence 18-19 bolts to 10 N.m (89 lb in).
    8. Tighten sequence 20 bolt to 25 N.m (18 lb ft).
  7. Connect the wire harness retainers to the front cover.
    8. Fig 5: Drive Belt Tensioner
    GM2831023Courtesy of GENERAL MOTORS COMPANY
  8. Install the drive belt tensioner (1). Drive Belt Tensioner Replacement 
    9. Fig 6: Crankshaft Balancer
    GM2831024Courtesy of GENERAL MOTORS COMPANY
  9. Install the crankshaft balancer (1). Crankshaft Balancer Replacement (Except North America) Crankshaft Balancer Replacement 
  10. Install the camshaft cover. Camshaft Cover Replacement 
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