Maintenance: NVH Infiniti QX80 I

APPEARANCE AND NOISE

Check the propeller shaft tube surface for dents or cracks. If damaged, replace propeller shaft assembly.

VIBRATION

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

Scheme 32

Scheme 33

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»(ref-618048-S01099255692014052700000) ". Propeller shaft runout measuring point (Point "delta"). Dimension A: 80 - 100 mm (3.15 - 3.94 in) B: 100 - 120 mm (3.94 - 4.72 in) C: 254.5 mm (10.02 in)
2. If runout still exceeds specifications, separate propeller shaft at final drive companion flange or transfer 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.

Check the propeller shaft tube surface for dents or cracks. If damaged, replace propeller shaft assembly.

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

Scheme 34

Scheme 35

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»(ref-618073-S30172323662014052700000) ". Propeller shaft runout measuring point (Point "delta "). A Dimension A: 120 - 150 mm (4.72 - 5.91 in) B: 150 - 180 mm (5.91 - 7.09 in) C: 703.5 mm (27.70 in)
2. If runout still exceeds specifications, separate propeller shaft at final drive companion flange or transfer 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.

Check the propeller shaft tube surface for dents or cracks. If damaged, replace propeller shaft assembly.

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

Scheme 36

Scheme 37

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»(ref-618072-S21550778772014052700000) ". Propeller shaft runout measuring range.
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.