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Connecting Rod Bearing Service

  1. These bearings are designed to have slight projection above the rod and cap faces to ensure positive contact. They may be replaced without removing rod and piston assembly from engine.
  2. Measure connecting rod journals with micrometer to check out-of-round. Maximum out-of-round must not exceed .0015" (.038 mm). Use Plastigage method to check bearing clearance. Maximum clearance must not exceed .0035" (.089 mm). Coat bearing with engine oil before installation.
    NOTE: All rods must be connected to journals before rotating crankshaft to prevent damage to engine.
  3. Measure connecting rod side clearance by spreading rods with screwdriver and inserting feeler gauge. Clearance should be .006-.020" (.152-.508 mm).
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