RDX AWD L4-2.3L Turbo (2010)
Connecting Rod Bearing: Service and Repair
Connecting Rod Bearing Replacement
Connecting Rod Bearing Clearance Inspection
1. Remove the oil pump See: Engine Lubrication/Oil Pump/Service and Repair/Overhaul.
2. Remove the baffle plate See: Crankshaft/Service and Repair/Crankshaft and Piston Removal.
3. Remove the connecting rod cap and the bearing half.
4. Clean the crankshaft rod journal and the bearing half with a clean shop towel.
5. Place plastigage across the rod journal.
6. Reinstall the bearing half and the cap, and torque the bolts to 29 Nm (3.0 kg-m, 22 lb-ft) + 90 °
NOTE:
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Apply new engine oil to the bolt threads and flanges.
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Do not rotate the crankshaft during inspection.
7. Remove the rod cap and the bearing half, and measure the widest part of the plastigage.
8. If the plastigage measures too wide or too narrow, remove the upper half of the bearing, install a new, complete bearing with the same color
code(s), and recheck the clearance. Do not file, shim, or scrape the bearings or the caps to adjust clearance.
9. If the plastigage shows the clearance is still incorrect, try the next larger or smaller bearing (the color listed above or below the current one), and
check clearance again. If the proper clearance cannot be obtained by using the appropriate larger or smaller bearing, replace the crankshaft See:
Crankshaft/Service and Repair/Crankshaft and Piston Removal and start over.
Connecting Rod Bearing Selection
Each connecting rod fails into one of four tolerance range (from 0 to 0.024 mm (0.0009 in), in 0.006 mm (0.0002 in) increments) depending on the size
of its big end bore.
It is then stamped with a number or bar (1, 2, 3, or 4/I, II, III, or IIII) indicating the range. You may find any combination of 1, 2, 3, or 4/I, II, III, or IIII
in any engine.
