Drive/Propeller Shaft: Adjustments

VIBRATION OR DRUMMING

Requirements:

- Propeller shaft to perfect optical condition.





- Balance propeller shaft, if balance plates are missing or there is suspicion of imbalance (see instructions supplied with balancing machine).

Aligning Propeller Shaft To Eliminate Vibration or Drumming:





- Center transmission with measuring tape.

Checking/Correcting Deflection Angle of Joints:





- Place Special Tool 26 1 030 on oil pan flange and measure angle of engine inclination.

Note: When correcting deflection angle by installing shims, remember that this will change the deflection angle of neighboring joints.

Oil Pan flange Not Accessible:





- Apply Special Tool 26 1 030 with a helping rail (steel ruler) and measure angle of engine inclination.

Note: When correcting deflection angle by installing shims, remember that this will change the deflection angle of neighboring joints.





- Place special tool gauge on propeller shaft front section and measure angle.

- Determine deflection angle of coupling and, if necessary, correct by installing max. 3 mm (0.178") thick shims on transmission suspension or on center mount.

Example:
• Engine angle 2° 16'
• Propeller shaft angle 2° 06'
• Coupling deflection angle 0° 10'





- Place gauge on propeller shaft rear section and measure angle.

- Determine deflection angle of center mount and correct by installing max. 3 mm (0.118') shims on transmission suspension or on center mount if necessary.





- Place gauge on final drive together with helping rail (steel ruler) and measure angle.

- Determine deflection angle of universal joint and correct by installing max. 3 mm (0.118") shims on center mount if necessary.

Hard Moving Slide:

Note: The propeller shaft was balanced in assembled state and must not be turned in the slide.





- Punch mark an unmarked propeller shaft.





- Take off screw-on sleeve (1), washer (2) and rubber ring (3).

- Inspect the rubber ring, replacing if necessary.

- Disconnect the propeller shaft on the slide.

- Clean the keyway and lubricate with Molykote Long-term 2.

- Assemble the propeller shaft that the punch marks are aligned.





Note: The propeller shaft sections are mounted in such a manner, that the universal joints are in one plane.

If the slide has been disassembled without marking, only 180° wrong installation is possible because of balancing.

After Finishing Installation:





- Tighten the screw on sleeve with Special tool 26 1 040.

- Tightening torque 40-45 Nm (29-33 ft.lbs).