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Home >> Ford >> 1990 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 2.9L V6 - VIN [T] >> Removal & Installation >> Valve Cover & Rocker Arm Shaft Assembly >> Removal

Valve Cover & Rocker Arm Shaft Assembly: Removal

  1. Release pressure from fuel system. See, at beginning of this article, FUEL PRESSURE RELEASE . Remove spark plug wires. Clean fuel supply line coupling and return line fittings.
  2. Remove plastic retainer from coupling at fuel pressure regulator. Disconnect fuel line coupling using Fuel Line Coupling Key (T90P-9550-A) or equivalent. See Fig 1. Using 2 wrenches, disconnect fuel return line. DO NOT bend fuel rail.
    Fig 1: Disconnecting Fuel Supply Line Coupling
    G90A10215Courtesy of FORD MOTOR CO.
    CAUTION: Valve cover bolts use different reinforcement pieces at different locations. DO NOT mix pieces, as they must be installed to original location.
  3. On models with A/C, remove dipstick tube and bracket and left engine lifting hook.
  4. On all models, remove PCV valve hose and breather. Remove valve cover bolts and reinforcement pieces and note location for installation. Lightly tap valve cover with plastic hammer to break valve cover seal and remove valve cover.
  5. Remove rocker arm shaft assembly retaining bolts evenly 2 turns at a time. Remove rocker arm shaft assembly and oil baffle. Remove push rods and keep in order to ensure installation to original location.
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