Undersize Bearings Usage Guide

WARNING: This page is about a different car, the 2011 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.

When the specified connecting rod bearing oil clearance is not obtained with standard size connecting rod bearings, use undersize (US) bearings.
When using undersize (US) bearing, measure the connecting rod bearing inner diameter with bearing installed, and grind crankshaft pin so that the connecting rod bearing oil clearance satisfies the standard.
CAUTION: In grinding crankshaft pin to use undersize bearings, keep the fillet R [1.5 - 1.7 mm (0.059 - 0.067 in)].

Fig 1: Identifying Position Of Fillet

Bearing undersize table

BEARING UNDERSIZE CHART

Unit: mm (in)
Size	Thickness
US 0.25 (0.0098)	1.626 - 1.634 (0.0640 - 0.0643)