Ranger 2WD V6-3.0L VIN U (1998)
Connecting Rod: Testing and Inspection
Connecting Rod Bearing Journal Clearance
NOTE: The piston connecting rod journals must be within specification to check the connecting rod bearing journal clearance.
1. Position a piece of Plastigage off center across the bearing surface.
2. Install and tighten to specification, then remove the connecting rod bearing cap.
NOTE: Do not turn the crankshaft during this step.
3. Measure the Plastigage to get the connecting rod bearing journal clearance. The Plastigage should be smooth and flat. A changing width indicates
a tapered or damaged connecting rod main bearing or connecting rod.
Connecting Rod Bend
Measure the connecting rod bend on a suitable alignment fixture. Follow the instructions of the fixture manufacturer. Verify the bend measurement is
within specification.
Connecting Rod Bushing Diameter
Measure the bushing bore diameter of the connecting rod. Verify the diameter is within specification.
Connecting Rod Large End Bore