Inner Diameter of Cylinder Bore

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

Using a bore gauge, measure cylinder bore for wear, out-of-round and taper at 6 different points on each cylinder. (X and Y directions at A, B and C). The Y axis is in the longitudinal direction of the engine.
NOTE: When determining cylinder bore grade, measure cylinder bore at B position.

Fig 1: Checking Inner Diameter Of Cylinder Bore
Courtesy of NISSAN MOTOR CO., U.S.A.
1. Standard inner diameter: 89.000 - 89.030 mm (3.5039 - 3.5051 in)
2. Wear limit: 0.2 mm (0.008 in)
3. Out-of-round (difference between X - Y): 0.015 mm (0.0006 in)
4. Taper limit (difference between C - A): 0.01 mm (0.0004 in)
If the measured value rebore exceeds the limit, or if there are scratches and/or seizure on the cylinder inner wall, hone the inner wall.
An oversize piston is provided. When using an oversize piston, rebore the cylinder so that the clearance of the piston cylinder satisfies the standard.
1. Over size (OS) : 0.2 mm (0.008 in)