Quote:
Originally Posted by compress ignite
fruitcakesa,
An Old Arthur Dalton trick is to roll the chassis back and forth 10-15 feet on it's
wheels BEFORE tightening the Clamping 46MM nut.(It "Settles" the driveline.)
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Actually this isn't a trick at all. I don't know why MB doesn't mention this in the W123 maintenance library, but it's in the W114/115 manual. And the rolling, by just a couple of feet, should be done a few times with both the 46mm nut and center support not tight. Then tighten the nut followed by the center support.
This procedure must be done, followed by the tightenings, with the car on its wheels. If the procedure is not done, the amount of difference is minute and any stress can usually be taken up through the rubber center support - it's quite flexable. Omitting this procedure will not cause any drive-line vibration.