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Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2581 (Engine Mechanical - 6.8L (3V) -- F450 & F550 Super Duty) >> Disassembly And Assembly Of Subassemblies >> Intake Manifold Assembly >> Assembly

Intake Manifold Assembly: Assembly

WARNING: This page is about a different car, the 2011 Ford F550 Super Duty and 2011 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.
    NOTE: Lubricate the new O-ring seals with clean engine oil prior to installation.
  1. Install 2 new O-ring seals on each of the fuel injectors.
  2. Assemble the fuel injectors onto the fuel rail and install the locking clips.
  3. Install the fuel rail and fuel injector assembly onto the intake manifold.
  4. Install the 6 fuel rail bolts.
    • Tighten to 10 Nm (89 lb-in).
  5. Position the TB  spacer.
  6. Install the 2 upper TB spacer bolts in 2 stages:
    • Stage 1: Tighten to 7 Nm (62 lb-in).
    • Stage 2: Tighten an additional 90 degrees.
  7. Install the 4 lower TB  spacer bolts in 2 stages:
    • Stage 1: Tighten to 10 Nm (89 lb-in).
    • Stage 2: Tighten an additional 90 degrees.
  8. Install a new gasket and the TB  . Tighten the 4 bolts in 2 stages:
    • Stage 1: Tighten to 9 Nm (80 lb-in).
    • Stage 2: Tighten an additional 90 degrees.
  9. Install the EVAP  canister purge valve and bolt.
    • Tighten to 10 Nm (89 lb-in).
  10. Connect the EVAP  canister purge valve-to-intake manifold quick connect coupling. For additional information, refer to FUEL SYSTEM - GENERAL INFORMATION - GASOLINE AND DIESEL article.
  11. Position the IMRC  actuator and install the 3 bolts.
    • Tighten to 10 Nm (89 lb-in).
  12. Install the IMRC  rod C-clip.
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