Engine

Crankshaft Main Bearing Journal Diameter

1. Clean the crankshaft with a suitable solvent. Dry with compressed air.

2. Use a stiff nylon brush to clean all internal oil passages of the crankshaft. Loosen all accumulated dirt, sludge and deposits. Flush oil passages with a suitable solvent.

3. Inspect crankshaft journals for scratches, grooves and scoring.

4. Inspect crankshaft main bearings for scratches, grooves, scoring, pitting and inconsistent coloring.

5. Use a 75-100 mm (3-4 in) micrometer to measure the diameter of each journal. Measure each journal at 2 points, 90 degrees apart. Move the micrometer over the entire width of the journal. For additional information, refer to Specifications.