Engine

3. NOTE: This chart is for selecting main bearings 1 and 5 only, the remaining bearings will be selected using a different chart in the next step.

Using the data recorded earlier and the Bearing Select Fit Chart, Standard Bearings, determine the required bearing grade for main bearings 1 and 5.

Read the first letter of the engine block main bearing code and the first letter of the crankshaft main bearing code. Read down the column below the engine block main bearing code letter and across the row next to the crankshaft main bearing code letter, until the 2 intersect. This is the required bearing grade(s) for the No. 1 crankshaft main bearing. As an example, if the engine block code letter is "F" and the crankshaft code letter is "P", the correct bearing grade for this main bearing is a "1" for the upper bearing and a "2" for the lower bearing. Repeat the above steps using the fifth letter of the block and crankshaft codes to select the No. 5 bearing.