Cylinder Block: Inspection: Crankshaft

WARNING: This page is about a different variant/trim than selected.

Check the crankshaft main and pin journals for scoring, wear, or cracks.
Measure the journals for taper and out-of-round.
1. Standard
2. Out-of-round (X-Y) : 0.002 mm (0.0001 in)
3. Taper (A-B) : 0.002 mm (0.0001 in)
Fig 1: Measuring Journals For Taper And Out-Of-Round
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.
  1. Runout limit (total indicator reading) : 0.10 mm (0.0039 in)
  Fig 2: Checking Crankshaft Runout
  Courtesy of NISSAN MOTOR CO., U.S.A.