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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 752 (Engine Mechanical - 3.1L (Unit Repair)) >> Repair Instructions >> Exhaust Manifold Installation - Left

Exhaust Manifold Installation - Left

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CAUTION: Refer to FASTENER NOTICE in Cautions and Notices.
  1. Install the exhaust manifold studs.

    Tighten 

    Tighten the exhaust manifold studs to 18 N.m (13 lb ft).

  2. Install the exhaust manifold gasket.
  3. Install the exhaust manifold.
  4. Install the exhaust manifold nuts.

    Tighten 

    Tighten the exhaust manifold nuts to 16 N.m (12 lb ft).

    Fig 1: Installing Exhaust Manifold & Gasket
    G01811280Courtesy of GENERAL MOTORS CORP.
  5. Install the left side spark plugs.

    Tighten 

    • Tighten the spark plugs to 27 N.m (20 lb ft) when installing spark plugs into a new cylinder head.
    • Tighten the spark plugs to 15 N.m (13 lb ft) when re-installing after initial installation.
  6. Install the exhaust manifold heat shield.
  7. Install the exhaust manifold heat shield bolts.

    Tighten 

    Tighten the exhaust manifold heat shield bolts to 10 N.m (89 lb in).

    Fig 2: Installing Exhaust Manifold Heat Shield & Bolts
    G01811281Courtesy of GENERAL MOTORS CORP.