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Home >> Chevrolet >> 1990 >> Step Van 7.4 N, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 6.2L V8 Diesel - VINS [C,J] >> Removal & Installation >> Rear Crankshaft Oil Seal >> Removal & Installation

Removal & Installation

  1. Remove oil pan and oil pump. Remove rear main bearing cap and lower half of seal. Tap end of upper half of seal with a small drift punch. Remove upper half of seal from block. Clean block surface and seal grooves.
  2. Lubricate crankshaft seal lips with engine oil. Carefully install upper seal half into block seal groove until one end of seal extends 1/2" from block.
  3. Install remaining seal half into opposite block seal groove. Contact ends of seal halves will be at 4 and 10 o'clock, or 8 and 2 o'clock positions. This provides proper alignment of main cap with seal lips.
  4. Coat seal groove of main bearing cap with Loctite (414). Apply a thin film of anaerobic sealant to bearing cap. See Figure. Lightly oil bolt threads. Tap main bearing cap into place. Install bolts and tighten to specification. See TORQUE SPECIFICATIONS table. Install oil pump and oil pan.
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