How to Select Connecting Rod Bearing
HOW TO SELECT CONNECTING ROD BEARINGWhen New Connecting Rod and Crankshaft are Used
Check pin journal grade ("0", "1", or "2") on front of crankshaft, and select connecting rod bearing of the same grade.
NOTE: There is no grading for connecting rod big end diameter.
When Crankshaft and Connecting Rod are Reused
1. Measure the connecting rod big end diameter.
2. Make sure that the connecting rod big end diameter is within the standard value.
3. Measure the crankshaft pin journal diameter.
4. Determine the grade of crankshaft pin journal grade by corresponding to the measured dimension in Crankshaft pin journal diameter column of Connecting Rod Bearing Selection Table.
5. Select connecting rod bearing of the same grade.
Undersize Bearings Usage Guide
^ When the specified connecting rod bearing oil clearance is not obtained with standard size connecting rod bearings, use undersize (US) bearings.
^ When using undersize (US) bearing, measure the connecting rod bearing inner diameter with bearing installed, and grind crankshaft pin so that the connecting rod bearing oil clearance satisfies the standard.
CAUTION: In grinding crankshaft pin to use undersize bearings, keep the fillet R [1.5 - 1.7 mm (0.059 - 0.067 inch)].
