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Nissan Armada 2025-2026 Service and Repair Manual: Front Oil Seal

Nissan Armada 2025-2026 Service and Repair Manual / Engine / Engine Mechanical / Front Oil Seal

Removal and Installation

WARNING:

  • Jacking up or lift up the vehicle may the vehicle height to go down which cause a personal injury and/or damage to the air suspension component parts. Refer to Precaution for when Jacking and Lifting Up the vehicle with Electronic Air Suspension System.

REMOVAL

Remove the following parts:

  • Front under cover using a power tool (commercial service tool). Refer to Removal and Installation.

  • Drive belt: Refer to Removal & Installation.

  • Crankshaft pulley: Refer to Removal & Installation.

Remove front oil seal using a suitable tool.

CAUTION:

Never damage front cover and crankshaft.

INSTALLATION

Apply new engine oil to both oil seal lip and dust seal lip of new front oil seal.

Install front oil seal.

  • Install front oil seal so that each seal lip is oriented as shown in the figure.

    : Oil seal lip
    : Dust seal lip
    : Engine inside
    : Engine outside

  • Press in front oil seal to the position as shown in the figure.

    : Front cover rear end face
    : 0 - 0.5 mm (0 - 0.020 in)

  • Using a suitable drift, press-fit until the height of front oil seal is level with the mounting surface.

    • Suitable drift: outer diameter 60 mm (2.36 in), inner diameter 50 mm (1.97 in).

  • Check that the garter spring is in position and seal lips are not inverted.

CAUTION:

  • Never damage front cover and crankshaft.

  • Press-fit straight and avoid causing burrs or tilting oil seal.

Install in the reverse order of removal after this step.

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