Block Bore Code Location

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

Letters or bars have been stamped on the end of the engine block as a code for the size of each of the four main journal bores.

Use them, and the numbers stamped on the crankshaft (codes for main journal size), to choose the correct bearings. If the codes are indecipherable because of an accumulation of dirt and dust, do not scrub them with a wire brush or scraper. Clean them only with solvent or detergent.

Fig 1: Identifying Crankshaft Bore Code Location

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Bearing Color Code Chart

Courtesy of AMERICAN HONDA MOTOR CO., INC.