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Home >> Chevrolet >> 2011 >> Corvette ZR-1 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 6.2L Or 7.0L - Repair Instructions - Off Vehicle (4 Of 5) >> Intake Manifold Installation (6.2L LS3)

Intake Manifold Installation (6.2L LS3)

    Fig 1: Intake Manifold Gaskets
    GM1876007Courtesy of GENERAL MOTORS CORP.
    NOTE:
    • The intake manifold, throttle body, fuel injection rail, and fuel injectors may be removed as an assembly. If not servicing the individual components, install the intake manifold as a complete assembly.
    • DO NOT use the intake manifold gaskets again. Install NEW intake manifold-to-cylinder head gaskets.
  1. Install NEW intake manifold-to-cylinder head gaskets (514).
    2. Fig 2: Identifying Intake Manifold Bolts & Fuel Rail Stop Brackets
    GM1876006Courtesy of GENERAL MOTORS CORP.
  2. Install the intake manifold (500).
  3. Apply a 5 mm (0.20 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489) to the threads of the intake manifold bolts (512). Refer to Adhesives, Fluids, Lubricants, and Sealers .
  4. Install the intake manifold bolts (512) and fuel rail stop brackets (712).
    5. Fig 3: View Of Intake Manifold Bolts Tightening Sequence
    GM1876009Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  5. Tighten the intake manifold bolts:
    1. Tighten the intake manifold bolts (1-10) a first pass in sequence to 5 N.m (44 lb in).
    2. Tighten the intake manifold bolts (1-10) a final pass in sequence to 10 N.m (89 lb in).
    6. Fig 4: Sensor Grommet, MAP Sensor & Bolt
    GM1876003Courtesy of GENERAL MOTORS CORP.
  6. Lubricate the manifold absolute pressure (MAP) sensor grommet (715) with clean engine oil.
  7. Install the MAP sensor (714) and grommet (715).
  8. Install the MAP sensor bolt (713).
    9. Fig 5: Positive Crankcase Ventilation (PCV) Hose
    GM1876005Courtesy of GENERAL MOTORS CORP.
  9. Install the positive crankcase ventilation (PCV) - dirty air hose (716).
  10. Install the PCV - fresh air hose.
    11. Fig 6: Identifying Evaporative Emission Components
    GM1876004Courtesy of GENERAL MOTORS CORP.
  11. Install the evaporative emission (EVAP) canister purge solenoid valve (730), bracket (741), and bolt (742). Tighten the bolt to 50 N.m (37 lb ft).
  12. Install the EVAP tubes (729 and 735).
  13. Install the fuel rail. Refer to Fuel Rail and Injectors Installation (6.2L LS3)  or Fuel Rail and Injectors Installation (6.2L LS9)  or Fuel Rail and Injectors Installation (7.0L) .
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