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Exhaust Manifold Installation (LTG)

    Fig 1: Exhaust Manifold And Cylinder Head Bolts
    GM2769473Courtesy of GENERAL MOTORS COMPANY
  1. Install a NEW exhaust manifold gasket (2).
  2. Install the exhaust manifold (1) to the cylinder head.
  3. Hand start NEW exhaust manifold to cylinder head retaining bolts (3).
    4. Fig 2: Exhaust Manifold Bolt Tightening Sequence
    GM2769474Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    NOTE:

    Fasteners have adhesive patch and must be tightened to final torque within 5 minutes.

  4. Tighten the NEW exhaust manifold to cylinder head bolts three passes in sequence to 20 N.m (15 lb ft).
    5. Fig 3: Exhaust Manifold Brace Nuts
    GM2769471Courtesy of GENERAL MOTORS COMPANY
  5. Install the exhaust manifold brace (2).
  6. Install the exhaust manifold brace bolts (3) and tighten to 25 N.m (18 lb ft)
  7. Install NEW exhaust manifold brace nuts (1) and tighten to 25 N.m (18 lb ft)
    8. Fig 4: Exhaust Manifold Heat Shield Bolts
    GM2769470Courtesy of GENERAL MOTORS COMPANY
  8. Install the exhaust manifold heat shield (1).
  9. Install the exhaust manifold heat shield bolts (2) and tighten to 14 N.m (124 lb in).
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