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Connecting Rod Bearing Journal Taper and Out-of-Round

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, and 2012 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to the appropriate ENGINE article service information for the specification.
  1. Measure the crankshaft connecting rod journal diameters in 2 directions perpendicular to one another at each end of the connecting rod journal. The difference in the measurements from one end to the other is the taper. Verify measurement is within the wear limit.
Fig 1: Identifying Connecting Rod Bearing Journal Taper And Out-Of-Round Measuring Directions
G06064061Courtesy of FORD MOTOR CO.