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Home >> Ford >> 1998 >> Econoline XLT >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine - 7.3L (99F E Series & 99F F450/550) V8 Turbo Diesel - VIN F) >> Removal & Installation >> Cylinder Head >> Removal (Van)

Removal (Van)

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect negative battery cables. Remove interior engine cover. Remove air cleaner assembly. Remove headlight and park light assemblies.
    CAUTION: Fan clutch assembly uses right-hand threads to hold assembly onto water pump.
  2. Drain cooling system. Remove air deflector located above radiator. Using Fan Clutch Holder (T94T-6312-AH) and Fan Clutch Nut Wrench (T83T-6312-B), remove fan and fan clutch assembly from water pump. Place fan and fan clutch assembly in fan shroud.
  3. Remove fan shroud along with fan and fan clutch assembly. Disconnect transmission oil cooler lines and coolant hoses from radiator. Remove radiator.
  4. On A/C equipped models, discharge A/C system using approved refrigerant recovery/recycling equipment. Disconnect A/C refrigerant lines from condenser and plug line openings. Remove condenser.
  5. Remove grill, grill opening panel and upper radiator support. Loosen clamps and remove compressor manifold from turbocharger. See Figure. Disconnect necessary coolant hoses, clamps and brackets for cylinder head removal. Remove accessory drive belt. Disconnect vacuum lines. Disconnect generator electrical connectors. Remove ground cable. Remove generator mounting bracket bolts and remove mounting bracket. Remove generator.
    WARNING: The Injector Driver Module (IDM) supplies 115 volts DC into each fuel injector connected to engine wiring harness. DO NOT pierce any wires in engine wiring harness when servicing valve cover gasket and fuel injector.
  6. Disconnect engine wiring harness wires from valve cover gasket connector. Use care not to pierce any wires in engine wiring harness. Remove valve cover. Disconnect engine wiring harness wires from fuel injectors and glow plugs. Remove valve cover gasket from cylinder head.
  7. On passenger's side cylinder head applications, remove glow plug relay. On all cylinder head applications, disconnect fuel line assembly from rear of cylinder heads. This fuel line runs between fuel pump and cylinder heads. Use care not to bend fuel line.
  8. Disconnect high-pressure oil pump supply line from cylinder head. Remove fuel injectors from cylinder head. See FUEL INJECTOR .
  9. Remove rocker arm assemblies and push rods. See ROCKER ARM ASSEMBLY & PUSH ROD . It may be necessary to remove exhaust manifold for cylinder head removal. See EXHAUST MANIFOLD .
  10. Disconnect fuel return line from cylinder heads. Remove 4 fuel injector shoulder bolts. See Figure. Remove cylinder head bolts, cylinder head and cylinder head gasket.
CAUTION: DO NOT resurface cylinder head. If cylinder head or cylinder block surface warpage exceeds specification, replace component.
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