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Home >> Infiniti >> 2011 >> G37 IPL, Standard >> Repair and Diagnosis >> Drivelines & Axles >> Driveshaft & Universal Joints >> Front Propeller Shaft (2S56A) -- G37 Coupe >> Periodic Maintenance >> Front Propeller Shaft >> Inspection >> Vibration

Front Propeller Shaft: Inspection: Vibration

If vibration is present at high speed, inspect propeller shaft runout first.

  1. With a dial indicator, measure propeller shaft runout at runout measuring points by rotating final drive companion flange with hands.

    Propeller shaft runout:  Refer to "PROPELLER SHAFT RUNOUT ".

    Fig 1: Measuring Propeller Shaft Runout At Runout Measuring Points
    G07021536Courtesy of NISSAN MOTOR CO., U.S.A.
    • Propeller shaft runout measuring point (Point "←").

    Dimension A: 381.5 mm (15.02 in) 

  2. If runout still exceeds specifications, separate propeller shaft at final drive companion flange; then change the phase between companion flange and propeller shaft by the one bolt hole at a time and install propeller shaft.
  3. If runout is more than the limit value, remove and check propeller shaft.
  4. Check the vibration by driving vehicle.
Fig 2: Identifying Propeller Shaft Runout Measuring Point Dimension
G05225410Courtesy of NISSAN MOTOR CO., U.S.A.