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Home >> Chevrolet >> 2007 >> Optra LT, Automatic >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine Mechanical - 2.0L (L34 GMDAT) >> Repair Instructions >> Exhaust Manifold Installation

Exhaust Manifold Installation

  1. Install the exhaust manifold gasket.
  2. Install the exhaust manifold.
    3. NOTE: Refer to Fastener Notice .
    Fig 1: View Of Exhaust Manifold Retaining Nut Installation Sequence
    GM1252166Courtesy of GENERAL MOTORS CORP.
  3. Install the exhaust manifold retaining nuts and tighten in the sequence shown.

    Tighten:  Tighten the exhaust manifold retaining nuts 22 N.m (16 lb ft)  .

    4. Fig 2: View Of Exhaust Flex Pipe And Retaining Nuts
    GM1289778Courtesy of GENERAL MOTORS CORP.
  4. Install the exhaust flex pipe retaining nuts to the exhaust manifold studs.

    Tighten:  Tighten the exhaust flex pipe to exhaust manifold retaining nuts to 35 N.m (26 lb ft)  .

    5. Fig 3: View Of Exhaust Manifold Heat Shield And Bolts
    GM1289839Courtesy of GENERAL MOTORS CORP.
  5. Install the exhaust manifold heat shield.
  6. Install the exhaust manifold heat shield bolts.

    Tighten:  Tighten the exhaust manifold heat shield bolts to 8 N.m (71 lb in)  .

  7. Connect the oxygen sensor connector.
  8. Connect the negative battery.
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