Crankshaft Main Bearing Journal Taper and Out-of-Round

WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

Measure each of the crankshaft main bearing journal diameters in at least 2 directions at each end of the main bearing journal.
- Refer to the appropriate ENGINE article for the procedure.
- If out of specification, install new components as necessary. Refer to the appropriate ENGINE article for the procedure.
  
  Fig 1: Measuring Crankshaft Journal Diameters
  Courtesy of FORD MOTOR CO.