Main Journal Inspection

NOTE:
Specifications and Limits
Specifications show the expected minimum or maximum condition. If a component fails to meet the specifications, it is necessary to replace or refinish. If the component can be refinished, wear limits are provided as an aid to making a decision. Any component that fails to meet specifications and cannot be refinished must be replaced.

DIAMETER





^ Measure each of the crankshaft main bearing journal diameters in at least two directions.
^ If out of specification, replace as necessary.
^ Diameter: 57.98-58.00 mm (2.2827-2.2835 inch).

TAPER





^ Measure each of the crankshaft main bearing journal diameters in at least two directions at each end of the main bearing journal.
^ If it is out of specification, replace as necessary.
^ Maximum (Per 25.4 mm (1.0 inch): 0.008 mm (0.003 inch).

RUNOUT





NOTE: Crankshaft main bearing journals must be within specifications before checking runout.

1. Use Dial Indicator With Bracketry TOOL-4201-C to measure the crankshaft runout.
2. Rotate the crankshaft and subtract the lowest dial indicator reading from the highest dial indicator reading to figure the crankshaft runout.
Runout: 0.025 mm (0.001 inch).

3. If it is out of specification, replace as necessary.