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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 163 (Engine Mechanical - 3.6L (LGX LF4) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Cylinder Head Replacement - Left Side (LF4) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Assemble the cylinder head as necessary. Refer to Cylinder Head Assemble (LF4) .
    2. Fig 1: View Of Left Cylinder Head Gasket
    GM2202036Courtesy of GENERAL MOTORS COMPANY
  2. Ensure the cylinder head locating pins are securely mounted in the cylinder block deck face.
  3. Install NEW Cylinder Head Gasket (1)
    4. Fig 2: View Of Left Cylinder Head & Bolts
    GM2202035Courtesy of GENERAL MOTORS COMPANY
  4. Align the left cylinder head (3) with the deck face locating pins.
  5. Place the left cylinder head in position on the deck face.
    6. Fig 3: Identifying M11 Cylinder Head Bolt Tightening Sequence
    GM902816Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    NOTE:
    • DO NOT allow oil on the cylinder head bolt bosses.
    • DO NOT reuse the old cylinder head bolts.
  6. Install the NEW M11 cylinder head bolts (1).
    1. Tighten the M11 cylinder head bolts a first pass in sequence to 30 N.m (22 lb ft).
    2. Tighten the M11 cylinder head bolts a second pass in sequence an additional 150 degrees using the EN-45059  meter.
  7. Install the 2 NEW front M8 left cylinder head bolts (2).
    1. Tighten the M8 cylinder head bolts a first pass to 15 N.m (11 lb ft).
    2. Tighten the M8 cylinder head bolts a second pass in sequence an additional 75 degrees using the EN-45059  meter.
  8. Position wire harness and connect as necessary.
  9. Install ground wire and ground wire bolt. Tighten bolt to 15 N.m (11 lb ft)
  10. Remove Oil Level Indicator Tube Oil Level Indicator Tube Replacement (LF4) .
  11. Remove Turbocharger@ Bank 2 - Turbocharger Replacement (Bank 1) Turbocharger Replacement (Bank 2) 
  12. Remove Fuel Pump - Fuel Pump Replacement (LF4)
  13. Install Secondary Timing Drive Chain@Left Side - Secondary Camshaft Intermediate Drive Chain Replacement - Left Side (LF4) 
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