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Crankshaft Inspection

Out-of-Round and Taper
  1. Clean the crankshaft oil passages with pipe cleaners or a suitable brush.
  1. Clean the keyway and threads.
  1. Measure the out-of-round at the middle of each rod and the main journal in two places. The difference between measurements on each journal must not be more than the service limit.
    Journal Out-of-Round
    Standard (New):
    0.005 mm (0.0002 in.) max.
    Service Limit:
    0.010 mm (0.0004 in.)

  1. Measure the taper at the edges of each rod and the main journal. The difference between measurements on each journal must not be more than the service limit.
    Journal Taper
    Standard (New):
    0.005 mm (0.0002 in.) max.
    Service Limit:
    0.010 mm (0.0004 in.)


Straightness
  1. Place the engine block on a flat surface, crankshaft side up.
  1. Clean and install the bearings on the No. 1 and No. 5 journals of the engine block.
  1. Lower the crankshaft into the engine block.
  1. Measure the runout on all main journals. Rotate the crankshaft two complete revolutions. The difference between measurements on each journal must not be more than the service limit.
    Crankshaft Total Runout
    Standard (New):
    0.03 mm (0.0012 in.) max.
    Service Limit:
    0.04 mm (0.0016 in.)