Out-Of-Round And Taper Of Crankshaft

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

Measure dimensions at four different points as shown on each journal and pin.
Out-of-roundness is indicated by the difference in dimension between "X" and "Y" at "A" and "B".
Taper is indicated by the difference in dimension between "A" and "B" at "X" and "Y".
1. Limit
  1. Out-of-round (Difference between X and Y)
    1. : 0.002 mm (0.0001 in)
  2. Taper (Difference between A and B)
    1. : 0.002 mm (0.0001 in)
Fig 1: Measuring Dimensions At Specified Points On Each Journal And Pin
Courtesy of NISSAN MOTOR CO., U.S.A.
If measured value exceeds the standard, correct or replace crankshaft.
If corrected, measure the bearing oil clearance of the corrected journal or pin. Then select the main bearing or connecting rod bearing. Refer to "MAIN BEARING OIL CLEARANCE " or "CONNECTING ROD BEARING OIL CLEARANCE ".