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Home >> Lincoln >> 2012 >> MKZ Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 3.5L) >> In-Vehicle Repair >> Exhaust Manifold - LH >> Installation

Exhaust Manifold - LH: Installation

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  1. Install 6 new LH exhaust manifold studs.
    • Tighten to 12 Nm (106 lb-in).
  2. NOTE: Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.
  3. Using a new gasket, install the LH exhaust manifold and 6 new nuts. Tighten in 2 stages in the sequence shown in illustration:
    • Stage 1: Tighten to 20 Nm (177 lb-in).
    • Stage 2: Tighten to 25 Nm (18 lb-ft).
      Fig 1: Identifying LH Exhaust Manifold Nuts Tightening Sequence
      G08020683Courtesy of FORD MOTOR CO.
  4. Install the LH exhaust manifold heat shield and the 3 bolts.
    • Tighten to 10 Nm (89 lb-in).
  5. Install the LH HO2S. For additional information, refer to ELECTRONIC ENGINE CONTROLS - 3.5L .
  6. Install the LH catalytic converter. For additional information, refer to EXHAUST SYSTEM .