Re: Belt tension 1994 740i

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Re: Belt tension 1994 740i

Fred W

28 Sep 2006 14:14

> The main belt is very slack. I have adjusted the tension as far as it will
> go. does the alternater or the power stearing have adjustments on them.

Your belt has an automatic tensioner. Is that tensioner maxed out or
just stuck? If it has reached its max extension then you need a new
belt, but I have never seen a serpentine belt stretch that far.

More likely, you belt tensioner has gone TU. Here is a diagram:

http://www.realoem.com/bmw/showparts.do?model=GD43&mospid=47362&btnr=11_1238&hg=
11&fg=18

Item #11 is the tensioner for the main (alternator, water pump, power
steering) belt.

http://www.realoem.com/bmw/showparts.do?model=GD43&mospid=47362&btnr=11_1413&hg=
11&fg=18

Item #11 in this picture is the tensioner for the smaller AC belt.

Signature

-Fred W

Paul Rood	26 Sep 2006 11:30
The main belt is very slack. I have adjusted the tension as far as it will go. does the alternater or the power stearing have adjustments on them.

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