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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 >> Crankshaft Rear Seal >> Installation

Crankshaft Rear Seal: Installation

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  1. NOTE: Failure to use Motorcraft® High Performance Engine RTV Silicone may cause the engine oil to foam excessively and result in serious engine damage.
    NOTE: The crankshaft rear seal retainer must be installed and the bolts tightened within 10 minutes of sealant application.

    Apply 9 mm (0.354 in) bead of silicone sealant at the T-joints.

    Material: Motorcraft® High Performance Engine RTV Silicone / TA-357 (WSE-M4G323-A6)

    GFD511710Courtesy of FORD MOTOR COMPANY
  2. NOTE: Failure to use Motorcraft® High Performance Engine RTV Silicone may cause the engine oil to foam excessively and result in serious engine damage.
    NOTE: The crankshaft rear seal retainer must be installed and the bolts tightened within 10 minutes of sealant application.

    Apply 4.5 mm (0.177 in) bead of silicone sealant.

    Material: Motorcraft® High Performance Engine RTV Silicone / TA-357 (WSE-M4G323-A6)

    GFD511711Courtesy of FORD MOTOR COMPANY
  3. Lubricate the crankshaft rear seal with clean engine oil.
    GFD511712Courtesy of FORD MOTOR COMPANY
    1. Install the crankshaft rear seal retainer at an angle above the oil pan flange to avoid scraping off the sealer.
    2. NOTE: Inspect and ensure that the crankshaft rear seal lip is not rolled before proceeding to step 5.

      Tilt the seal retainer up and onto the rear of the cylinder block.

    GFD511713Courtesy of FORD MOTOR COMPANY
  4. Install the bolts and tighten in sequence shown.

    Torque: 89 lb.in (10 Nm)

    Fig 1: Crankshaft Rear Seal Retainer Plate Tightening Sequence
    GFD511714Courtesy of FORD MOTOR COMPANY
  5. Install oil pan-to-crankshaft rear seal bolts.

    Torque: Stage 1: 89 lb.in (10 Nm) - Stage 2: 45°

    GFD511707Courtesy of FORD MOTOR COMPANY
    • Install the CKP sensor and the bolt.

      Torque: 53 lb.in (6 Nm)

    • Connect the CKP sensor electrical connector.

    GFD511706Courtesy of FORD MOTOR COMPANY
  6. Inspect the ignition pulse ring for damage. If the ignition pulse ring has been dropped or has any visual damage, it must be replaced.
    GFD511715Courtesy of FORD MOTOR COMPANY
  7. NOTE: Make sure the crankshaft ignition pulse ring is aligned with the inset hole on the crankshaft flange.

    Install the engine-to-transmission spacer plate and the crankshaft sensor ring.

    GFD511705Courtesy of FORD MOTOR COMPANY
  8. Install the flexplate. Refer to: Flexplate .