Crankshaft Out-Of-Round And Taper

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Measure the dimensions at four different points as shown in the figure below on each main journal and pin journal with micrometer.
Out-of-round is indicated by the difference in the dimensions between "X" and "Y" at "A" and "B".
Taper is indicated by the difference in the dimensions between "A" and "B" at "X" and "Y".
Limit:

Out-of-round (Difference between "X" and "Y")

: 0.002 mm (0.0001 in)

Taper (Difference between "A" and "B")

: 0.002 mm (0.0001 in)

Fig 1: Identifying Crank Shaft Taper And Out Of Round Dimensions
Courtesy of NISSAN MOTOR CO., U.S.A.
If the measured value exceeds the limit, correct or replace crankshaft.
If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then select the main bearing and/or connecting rod bearing. Refer to "MAIN BEARING OIL CLEARANCE " and/or "CONNECTING ROD BEARING OIL CLEARANCE ".