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Home >> Chrysler >> 1992 >> Imperial >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 3.3L V6 - VIN [R] & 3.8L V6 - VIN [L] >> Overhaul >> Cylinder Block Assembly >> Crankshaft & Main Bearings

Crankshaft & Main Bearings

  1. Before installing main bearings, hold a straightedge across threads of main bearing cap bolts. Check that main bearing cap bolt threads contact straightedge in all areas. If threads fail to contact straightedge, bolts are stretched and must be replaced.
  2. Apply light coat of engine oil to threads before tightening bolt to specification. See TORQUE SPECIFICATIONS  at end of this article.
CAUTION: Crankshaft journal grinding should not exceed .012" (.30 mm) under standard size. DO NOT grind thrust surfaces of No. 2 main bearing. With cast iron crankshafts, final paper or cloth polishing after regrind must be done in same direction as engine rotation.
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