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Home >> Chevrolet >> 2005 >> Optra5 Base, Standard >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust >> Repair Instructions >> Front Pipe Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: Identifying Exhaust Pipe To Muffler Nuts
    GM1289550Courtesy of GENERAL MOTORS CORP.
  1. Install the exhaust front pipe and the gasket.
  2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the nuts from the exhaust front pipe-to-exhaust front muffler.

    Tighten:  Tighten the exhaust front pipe-to-exhaust front muffler nets to 30 N.m (22 lb ft)  .

  4. Fig 2: View Of Exhaust Pipe Mounting Bracket Bolt And Catalytic Converter Flange Nuts
    GM1289526Courtesy of GENERAL MOTORS CORP.
  5. Install the nuts from the exhaust front pipe-to-catalytic converter flange.
  6. Install the exhaust front pipe mounting bracket bolt.

    Tighten

    • Tighten the exhaust front pipe-to-catalytic converter nuts to 40 N.m (30 lb ft)  .
    • Tighten the exhaust front pipe-to-cylinder block bolt to 50 N.m (37 lb ft)  .
  7. Connect the oxygen sensor connector.
  8. Fig 3: View Of Lower Bracket And Bolts
    GM1289537Courtesy of GENERAL MOTORS CORP.
  9. Install the crossmember lower bracket bolts.

    Tighten:  Tighten the crossmember lower bracket bolts to 35 N.m (26 lb ft)  .