Cylinder Block: Inspection: Crankshaft

WARNING: This page is about a different car, the 2007 Nissan Maxima. 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.
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)

Fig 1: Measuring Crankshaft Journal
Courtesy of NISSAN MOTOR CO., U.S.A.
Measure crankshaft runout.
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)
Fig 2: Checking Crankshaft Runout
Courtesy of NISSAN MOTOR CO., U.S.A.