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Home >> Lincoln >> 2003 >> Aviator AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System-General Information >> General Procedures >> Crankshaft Runout

Crankshaft Runout

Special Tool(s) 

Fig 1: Identifying Special Tools
G03446444Courtesy of FORD MOTOR CO.
    NOTE: Crankshaft main bearing journals must be within specifications before checking runout.
  1. Use the Dial Indicator Gauge with Holding Fixture to measure the crankshaft runout.
    • Refer to ENGINE for the procedure.
    • Rotate the crankshaft and subtract the lowest dial indicator reading from the highest dial indicator reading to figure the crankshaft runout. If it is out of specification, install new components as necessary. Refer to ENGINE for the procedure.
      Fig 2: Measuring Crankshaft Runout
      G03446445Courtesy of FORD MOTOR CO.