Noise
Check driveshaft for nicks and cracks. If any are found, replace the driveshaft assembly. Publishing house «Monolith»
If the center bearing is noisy or damaged, replace it.
Vibration
If vibration is noted at high speed, the amount of shaft runout must first be checked.
1. Measure the maximum runout value and determine the section with the maximum runout by turning the final drive flange by hand.
Note. Maximum allowable runout of the cardan shaft: 0.6 mm.
2. If the runout exceeds the limit, disconnect the propeller shaft of the drive axle reducer flange or transfer case flange, and then turn the flange 90, then reinstall the shaft.
3. Measure the runout again. If the runout is still above the limit, replace the propeller shaft assembly.
4. Check the vibration of the propeller shaft during a test drive.
Beat measurement points
In the figure below, the symbol «A» points for measuring the runout of the cardan shaft are indicated.
Versions with MR20DE engine:
A = 200mm.
H = 639 mm.
C = 159 mm.
Versions with M9R engine:
A = 495mm.
H = 416mm.
Note. The arrow in the illustrations points towards the front of the vehicle.