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CHECKING BEARING CLEARANCE

  1. Remove the bearing cap and wipe the oil from the crankshaft journal and the outer and inner surfaces of the bearing shell.
  2. Place a piece of plastic gauging material in the center of the bearing.
  3. Use a floor jack or other means to hold the crankshaft against the upper bearing shell. This is necessary to obtain accurate clearance readings when using plastic gauging material.
  4. Install the bearing cap and bearing. Place engine oil on the cap bolts and install. Torque the bolts to specification.
  5. Remove the bearing cap and determine the bearing clearance by comparing the width of the flattened plastic gauging material at its widest point with the graduations on the gauging material container. The number within the graduation on the envelope indicates the clearance in millimeters or thousandths of an inch. If the clearance is greater than allowed, REPLACE BOTH BEARING SHELLS AS A SET. Recheck the clearance after replacing the shells. (Refer to Main Bearing Replacement).

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