'92 Jetta Diesel keeps throwing fans belts (Help!)

Does it fly off or do you hear a squeal and then notice the alternator
light?

In my case ( 1992 Passat 2 .0 l ) the alternator belt runs from the
double pully on the A/C and it is hard to get much tension on it when
installing a belt.
Therefore I install the belt then after about 1 day, re-tension the
belt again.


Igel@Büro wrote:
> have you also replace the Pulley on the Crane-shaft. It is usually a Double
> Mass with Rubber build-in. It last same as the Belt!
>
> "Nevermind" wrote in message
>
>
>>I've never seen anything like this before.The installed belt seems nice
>>and tight,and goes flying off anywhere from going 1 mile down the
>>road,to a couple of weeks. I've tried new two different
>>alternators.Same problem.I've installed quite a few belts and never had
>>a problem like this.Any ideas?
>
>
>
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