Re: Alternator "Screw" lower bolt '79 300D

Alternators are attached with two lower "pivots" - bolts that must be 
loosened to move the alternator AND an adjustment Nut on the alternator 
bracket.

The pivots are just bolts that screw into a bracket; as I recall, they 
have no nuts. I found it was easier to access these from underneath than 
from above.

Loosen the pivot bolts, then turn the adjustment nut to slacken and 
tighten the drive belt.
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