Alternator (V Belt) - Deflection Measurement, Adjustment
84audi1Applies To
5000
4000
Group 27
Subject
Alternator V-Belt Tension
Part Identifier N/A
Key Points
Deflection measurement for V-belt tension
A 78
Number
84-02
April 20, 1984
Due to higher alternator output, present V-belt tension is insufficient. Adjust belt tension as follows:
Alternator V-belts up to 1000 mm long
^ a 2 mm max. deflection with new belt
^ a 5 mm max. deflection with previously run belt
Alternator V-belts over 1000 mm long
^ a 10 mm max. deflection with new belt
^ a 15 mm max. deflection with previously run belt
Note
Extremely loud squealing may indicate damaged V-belt that should be replaced