RAM 2500 Truck 4WD L6-359 5.9L DSL Turbo VIN D FI (1998)
Crankshaft: Service and Repair
Service Procedures
GENERAL INFORMATION
Crankshaft main and rod journals may be ground in increments of 0.25 mm (0.0098 inch) up to a total of 1.00 mm (0.0394 inch).
The only exception is the main journal thrust width surface. This journal must be ground in increments of 0.50 mm (0.0197 inch) up to a total of 1.00
mm (0.0394 inch). The thrust surface is located on the No.6 main bearing. When the thrust surface requires grinding, the main journal must be ground
to the same undersize dimension.
CAUTION: Welding of the crankshaft is not allowed. Failure of the crankshaft will result.
MAIN JOURNAL
All main journals are to be ground in the opposite direction of engine rotation (clockwise as viewed from the front of crankshaft). Polish the journals
in the same direction as engine rotation.
Crankshaft Main Journal Dimensions
The main bearing grinding specifications are shown.
Crankshaft Thrust Journal Width Dimensions
Thrust journals can be ground in the same increments and using the same specifications as all other main journals. The main journal radius may be
ground using either the preferred or the alternative procedure providing the thrust surface width is not being ground. The preferred procedure must be
used when the main bearing thrust width surface is ground. When the thrust surface width requires grinding, the main journal must be ground to the
same undersize dimension.
