2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Loose alternator belt...

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Old Feb 16, 2005 | 04:21 PM
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Question Loose alternator belt...

Can a loose alternator belt cause the pulley (on the alternator) to heat up to a very high temperature and cause the belt to snap?
I was told my alternator was done for but i noticed the belt was really loose so i thought it have something to do with that.
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Old Feb 16, 2005 | 04:43 PM
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the belt will break from the friction of the metal pulley scrubbing against the rubber belt. I don't think that the friction from the belt against the pulley will cause damage to the internal components of the alternator.

Last edited by Project84; Feb 16, 2005 at 05:02 PM.
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Old Feb 16, 2005 | 05:12 PM
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Well my pulley was heating up really bad and i was told the alternator needed to be replaced (bad bearings was the verdict), but the belts were replaced by these guys who didn't properly tighten the alternator belt... so i figured that's why the pulley was heating up.
as for the bearings, I'm not quite sure how to tell whether they're good or bad, but i have an alternator coming so i'll probably replace it anyway..
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Old Feb 16, 2005 | 05:56 PM
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Well, if the alternator pulley is hard to turn, its not hard to believe that the belt will slip on it rather than actually turn it.
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