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Cylinder Block: Inspection: Crankshaft

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check the crankshaft main and pin journals for scoring, wear, or cracks.
    G04159928Courtesy of NISSAN NORTH AMERICA, INC.
  2. Measure the journals for taper and out-of-round.
    Standard  
    Out-of-round (X - Y) : 0.002 mm (0.0001 in)
    Taper (A - B) : 0.002 mm (0.0001 in)
  3. Measure crankshaft runout.
    G04073156Courtesy of NISSAN NORTH AMERICA, INC.
    1. Place a V-block on a precise flat table to support the journals on the both ends of the crankshaft.
    2. Place a dial gauge straight up on the No. 3 journal.
    3. While rotating the crankshaft, read the movement of the pointer on the dial gauge.
    Runout limit (total indicator reading) : 0.10 mm (0.0039 in)
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