Micrometer Method For Connecting Rod Bearings
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- Measure crank pin diameter with a micrometer in several places along the length, approximately 90 degrees apart, minimum of 4 places, and average the measurements.
- Determine the taper and the out-of-round. See CRANKSHAFT table.
- Install NEW connecting rod bearings into the connecting rod cap and the connecting rod.
- Install connecting rod cap and the original, used, nuts. Tighten the connecting rod nuts to specification. See TORQUE SPECIFICATIONS . Tighten the connecting rod nuts an additional 90 degrees.
- Measure connecting rod bearing Inside Diameter (ID) using an inside micrometer.
- Compare the connecting rod bearing clearance specifications. See CRANKSHAFT table.
- If the connecting rod bearing clearances exceed specifications, replace components as required.