How To Select Connecting Rod Bearing
WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
When New Connecting Rod and Crankshaft are Used
- Apply the big end inside diameter grade stamped on the connecting rod side face to the row in the "Connecting Rod Bearing Selection Table".
- Apply the pin diameter grade stamped on the crankshaft front side to the column in the "Connecting Rod Bearing Selection Table".
- Read the symbol at the cross point of the selected row and column in the "Connecting Rod Bearing Selection Table".
- Apply the symbol obtained to the "Connecting Rod Bearing Grade Table" to select.
When Crankshaft and Connecting Rod are Reused
- Measure dimensions of the big end inside diameter of the connecting rod and diameter of the crankshaft pin individually.
- Apply the measured dimension to the "Connecting Rod Bearing Selection Table".
- The following steps are the same as in "When New Connecting Rod and Crankshaft are Used".
Connecting Rod Bearing Selection Table
CONNECTING ROD BEARING GRADE TABLE
| Grade number | Thickness "T" mm (in) | Identification color (mark) |
|---|---|---|
| 0 | 1.500 - 1.503 (0.0591 - 0.0592) | Black |
| 1 | 1.503 - 1.506 (0.0592 - 0.0593) | Brown |
| 2 | 1.506 - 1.509 (0.0593 - 0.0594) | Green |
| 3 | 1.509 - 1.512 (0.0594 - 0.0595) | Yellow |
Undersize Bearings Usage Guide
- When the specified oil clearance is not obtained with standard size connecting rod bearings, use undersize (US) bearings.
- When using undersize bearing, measure the bearing inside diameter with the bearing installed, and grind the crankshaft pin so that the oil clearance satisfies the standard.
BEARING UNDERSIZE TABLE
| Unit: mm (in) | |
|---|---|
| Undersize | Thickness |
| 0.25 (0.0098) | 1.627 - 1.635 (0.0641 - 0.0644) |
CAUTION:
In grinding the crankshaft pin to use undersize bearings, keep the fillet R (All crankshaft pins).
Fillet R: 1.5 - 1.7 mm (0.059 - 0.067 in)