Lower Cylinder Block Bolt Outer Diameter

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 outer diameters ("d1 ", "d2 ") at two positions as shown below.
If reduction appears in "A" range, regard it as "d2 ".
Limit ("d1 " - "d2 ") : 0.11 mm (0.0051 in)
If it exceeds the limit (large difference in dimensions), replace lower cylinder block bolt with new one.

Fig 1: Identifying Lower Cylinder Block Bolt Outer Diameter
Courtesy of NISSAN MOTOR CO., U.S.A.