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Home >> Ford >> 2021 >> Explorer Limited Hybrid, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine - 3.3L DURATEC-V6) >> Removal And Installation >> Cylinder Head LH >> Installation

Cylinder Head LH: Installation

WARNING: This page is about a different variant/trim than selected.
  1. Install the cylinder head gasket.
    GFD511727Courtesy of FORD MOTOR COMPANY
  2. NOTE: If the cylinder head is replaced, a new secondary timing chain tensioner will need to be installed.
    NOTE: Install new cylinder head bolts.

    With the aid of an assistant, install the cylinder head and the new bolts.

    Torque: Stage 1: 177 lb.in (20 Nm) - Stage 2: 26 lb.ft (35 Nm) - Stage 3: 90° - Stage 4: 90° - Stage 5: 45°

    Fig 1: LH Cylinder Head Tightening Sequence
    GFD511728Courtesy of FORD MOTOR COMPANY
  3. Install the M6 bolt.

    Torque

    : 89 lb.in (10 Nm)

    GFD511729Courtesy of FORD MOTOR COMPANY
  4. NOTE: The valve tappets must be installed in their original positions.

    Lubricate the valve tappets with clean engine oil and install.

    GFD511730Courtesy of FORD MOTOR COMPANY
  5. NOTE: Do not use power tools to install the bolt or damage to the upper LH timing chain guide may occur.

    Install the upper LH timing chain guide and the bolt.

    Torque: 89 lb.in (10 Nm)

    GFD511720Courtesy of FORD MOTOR COMPANY
  6. Lubricate the O-ring seals with clean engine oil and install the CMP sensors and the bolts.

    Torque: 89 lb.in (10 Nm)

    GFD511719Courtesy of FORD MOTOR COMPANY
    • Connect the CMP sensor electrical connectors and attach the wiring harness retainer.

    • Connect and attach the direct injection wiring harness electrical connector.

    GFD511718Courtesy of FORD MOTOR COMPANY
  7. Install the ground wire and the fastener.

    Torque: 80 lb.in (9 Nm)

    GFD511717Courtesy of FORD MOTOR COMPANY
  8. NOTE: Make sure that a new fuel rail to fuel rail high-pressure fuel tube is installed.

    • Install the fuel rail to fuel rail high-pressure fuel tube and finger tight the flare nuts.

    • Tighten the flare nuts in the following 3 stages.

      Torque: Stage 1: 62 lb.in (7 Nm) - Stage 2: 89 lb.in (10 Nm) - Stage 3: If the torque required to tighten any flare nut on the new high-pressure fuel tube reaches or exceeds 75 Nm (55 lb-ft), the high pressure fuel tube must be discarded and replaced with another new high-pressure fuel tube: 30°

    GFD511731Courtesy of FORD MOTOR COMPANY
  9. Install the following items:

    1. Install the LH camshafts. Refer to: Camshafts .
    2. Install the LH catalytic converter. Refer to: Catalytic Converter LH .

    • Remove the oil pan drain plug and drain the engine oil. Use the General Equipment: Oil Drain Equipment

    • Install the oil drain plug.

      Torque: 19 lb.ft (26 Nm)

    GFD511661Courtesy of FORD MOTOR COMPANY
  10. Remove and discard the engine oil filter. Use the General Equipment: Oil Drain Equipment
    GFD511662Courtesy of FORD MOTOR COMPANY
    1. Using brake cleaner, clean the drain trough. Use the General Equipment: Oil Drain Equipment

      Material: Motorcraft® Metal Brake Parts Cleaner / PM-4-A, PM-4-B

    2. Wipe the drain trough clean.
    GFD511663Courtesy of FORD MOTOR COMPANY
    • Lubricate the oil filter seal with clean engine oil and install and tighten in 2 stages.

    • Stage 1: Install to initial gasket contact.

    • Stage 2: Tighten 3/4 to 1 turn.

    GFD511664Courtesy of FORD MOTOR COMPANY
  11. Install the rear underbody shield, bolts and the pin-type retainers.

    Torque: 22 lb.in (2.5 Nm)

    GFD510498Courtesy of FORD MOTOR COMPANY
  12. Install the cowl panel. Refer to: Cowl Panel .
  13. Fill the engine with clean engine oil. Refer to: Specifications .
    GFD511665Courtesy of FORD MOTOR COMPANY
  14. Connect the battery ground. Refer to: Battery Disconnect and Connect .
  15. Fill the cooling system. Refer to: Engine Cooling System Draining, Vacuum Filling and Bleeding .
  16. Pressurize the fuel system pressure. Refer to: Fuel System Pressure Release .
  17. Start and check the exhaust system for leaks.