Section 500 (2.4L Engine (Service Information)): Crankshaft: Inspection
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
The crankshaft journals should be checked for excessive wear, taper and scoring. See Fig 1. Limits of taper or out of round on any crankshaft journals should within specifications. (Refer to ENGINE - SPECIFICATIONS) . Journal grinding should not exceed 0.305 mm (0.012 in.) under the standard journal diameter. DO NOT grind thrust faces of No. 3 main bearing. DO NOT nick crank pin or bearing fillets. After grinding, remove rough edges from crankshaft oil holes and clean out all passages.
CAUTION:
With the nodular cast iron crankshafts, it is important that the final paper or cloth polish be in the same direction as normal rotation in the engine.