Can Alternator Pulley Bearing Be Bad If Alternator Works?

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06-01-2012, 04:16 PM

leichte

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Can Alternator Pulley Bearing Be Bad If Alternator Works?

I have a pulley bearing noise coming from my 87 xj and one I'm trying to rule out the alternator. I had the alternator checked at O'Reilly and it was good.

Is it possible for the alternator pulley bearing to be bad if the alternator checks out as good?

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06-01-2012, 04:20 PM

Turbo X_J

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Sure, when the belt was off did you check everything else? (grab on to everything with a pulley & spin it, try to get it move sideways, etc.)

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06-01-2012, 04:54 PM

leichte

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Quote:

Originally Posted by Turbo X_J

Sure, when the belt was off did you check everything else? (grab on to everything with a pulley & spin it, try to get it move sideways, etc.)

Should the pulleys spin freely with no resistance or should there be some obvious resistance?

I noticed my idler pulley spins freely with no resistance while the alternator and a/c clutch seem to spin easily but feel firm/heavy.

Thanks!

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