How to Select Connecting Rod Bearings
HOW TO SELECT CONNECTING ROD BEARINGSWhen New Connecting Rod and Crankshaft are Used
Check pin diameter grade number (0, 1 or 2) stamped in front of crankshaft and select connecting rod bearing of same grade number.
NOTE: There is no grading for connecting rod big end inner diameter.
When Crankshaft and Connecting Rod are Reused
1. Measure dimensions of the big end inner diameter of connecting rod and outer diameter of crankshaft pin individually.
2. Confirm the big end inner diameter of connecting rod is within the standard value.
3. Apply the measured dimension to the "Connecting Rod Bearing Selection Table".
4. Determine the grade of crankshaft pin diameter grade by comparing the measurement with the values under the crankshaft pin outer diameter of the "Connecting Rod Bearing Selection Table".
Connecting Rod Bearing Selection Table
Undersize Bearings Usage Guide
^ When the specified oil clearance is not obtained with standard size connecting rod bearings use undersize bearings.
^ When using undersize bearings measure the bearing inner diameter with bearing installed and grind the crankshaft pin so that the oil clearance satisfies the standard.
Bearing Undersize Table
CAUTION: In grinding the crankshaft pin to use undersize bearings, keep the fillet R (all crankshaft pins).