Cylinder Block: Inspection: Crankshaft
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- Check the crankshaft main and pin journals for scoring, wear, or cracks.
 Courtesy of NISSAN NORTH AMERICA, INC.
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- Measure the journals for taper and out-of-round.
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Standard
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Out-of-round (X - Y)
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: 0.002 mm (0.0001 in)
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Taper (A - B)
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: 0.002 mm (0.0001 in)
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- Measure crankshaft runout.
 Courtesy of NISSAN NORTH AMERICA, INC.
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- Place a V-block on a precise flat table to support the journals on the both ends of the crankshaft.
- Place a dial gauge straight up on the No. 3 journal.
- While rotating the crankshaft, read the movement of the pointer on the dial gauge.
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Runout limit (total indicator reading)
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: 0.10 mm (0.0039 in)
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