If No. 1 Main Bearing Color Cannot Be Determined

Determine main bearing grade using the following information:

1. Obtain the No. 1 bearing housing grade off of the engine block.

^ These can be punched as letters, numbers, or roman numerals.





2. Obtain the No. 1 journal diameter grade off of the crankshaft. These can be punched as letters, numbers, or roman numerals.





3. Use the table above to determine the grade number of the No. 1 main bearing removed from the engine.