Connecting Rod Journal Code Locations

Numbers have been stamped on the side of each connecting rod as a code for the size of the big end. Use them, and the letters stamped on the crank (codes for rod 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: Connecting Rod Journal Stamping

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Color Code Chart

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 3: Connecting Rod Journal Code Locations (Letters)

Courtesy of AMERICAN HONDA MOTOR CO., INC.