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ringing sound from pulleys under high rpm

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Old 03-28-05, 01:33 AM
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ringing sound from pulleys under high rpm
Today I noticed my FD was making a high pitched ringing whining noise under high rpm ( 5000 +).
I checked under the hood and pulled the throttle cable, the loud whine seems to be coming from the pulleys, maybe waterpump pulley, its hard to tell but its definatly isolated around the front area of the engine.
Have searched to no avail. any ideas what this could be?
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Old 03-28-05, 04:04 AM
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could it be that they're just slipping at high rpm? would I tighten them to deal with this?
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Old 03-28-05, 08:58 AM
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My guess is either the idler pulley is shot or the air pump. Those seem to be the main culprits for noise making.

A slipping belt usually makes a very loud squeal and mostly it makes the noise at very low rpm.
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Old 03-28-05, 01:30 PM
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I have no airpump and which is the idler pulley?
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Old 03-28-05, 03:50 PM
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idler pulley is the one that doesnt run anything. It is between the air pump and the alternator.
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Old 03-28-05, 04:14 PM
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Originally Posted by Tom93R1
idler pulley is the one that doesnt run anything. It is between the air pump and the alternator.
That's the water pump pulley!

Idler pulley is between power stearing and main pulley.
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Old 03-28-05, 06:46 PM
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grab the water pump pulley and see if it wiggles. Mine started making noise and then it really got bad to the point that I could see it wiggling under idle. Check all your pulleys for any movement!
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Old 03-28-05, 07:48 PM
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Well i loosened all the belts and tried wiggling all the pulleys and there is no play what so ever.
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Old 03-28-05, 11:21 PM
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Originally Posted by TwinTurbo93
That's the water pump pulley!

Idler pulley is between power stearing and main pulley.
Guess I need to go look, but I was imagining what the front of my motor looks like and I imagined the air pump upper left, then water pump just to the right with idler pulley slightly below and to the right of that. The alternator sort of above and right of the idler? Damn, I guess I did describe the water pump
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Old 03-28-05, 11:24 PM
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Originally Posted by spekdah
Well i loosened all the belts and tried wiggling all the pulleys and there is no play what so ever.
Loosen the belts and spin the idler by hand. It should be smooth and not make much of a sound. Also should not have any slop in it.
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Old 03-29-05, 05:53 AM
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loosened my pulleys a little, squeel seems to have gone.will try again tomorrow,

cheers 4 now
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Old 03-29-05, 06:38 AM
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no, dont loosen the pulleys! they might come off!!! loosen the belts instead.
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Old 03-29-05, 01:39 PM
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I meant the belts sorry
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Old 03-29-05, 02:19 PM
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He had to know that! He's just giving you some bull...
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