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Crankshaft & Bearings

  1. Check crankshaft connecting rod journals for wear, out-of-round, taper or undersize. Machine or replace crankshaft and/or bearings as necessary. See CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS  under ENGINE SPECIFICATIONS.
  2. Before removing main cap, measure and record crankshaft end play. Using Plastigage method, measure and record main bearing oil clearance. Remove crankshaft. Measure and record each main journal diameter in 2 places. See CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS  under ENGINE SPECIFICATIONS.
  3. Main bearing caps are marked and must be installed in original position. Tighten main bearing caps evenly to specification. See TORQUE SPECIFICATIONS .
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