Connecting Rod Bearing: Service and Repair
BEARING SELECTION
CAUTION: 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.
Connecting Rod Journal Code Identification
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 crankshaft (codes for rod journal size), to choose the correct bearings.
NOTE: When using bearing halves of different colors, it does not matter which color is used in the top or bottom.