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Home >> Jeep >> 1988 >> Wagoneer >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 4.0L 6-CYL - VIN [M] & 4.2L 6-CYL - VIN [C] >> Removal & Installation >> Rear Main Oil Seal >> Installation

Rear Main Oil Seal: Installation

  1. Clean crankshaft seal surface. Coat seal-to-block contact areas with liquid soap. Lightly coat all seal lips with engine oil. See Fig 1. Install upper seal into block with lip facing toward front of engine.
  2. Apply Silicone sealer on both sides of lower seal tabs. Ensure no sealer is applied on seal lip. Apply liquid soap on seal-to-cap contact surfaces.
  3. Install lower seal into bearing cap with lip facing toward front of engine. Ensure seal is firmly seated in bearing cap. Apply Silicone sealer to chamfered edges of bearing cap. See Fig 1.
    CAUTION: DO NOT apply Silicone sealer on cap-to-block contact surfaces. Sealer should only be applied to chamfered edges only.
  4. Install rear main bearing cap. Tighten main bearing cap bolts to specification.
Fig 1: Installing Rear Main Bearing Oil Seal
G91244Courtesy of CHRYSLER MOTORS.
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