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Bad Pulley-Please help me to identify...

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Old 10-23-2014, 08:52 PM
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Originally Posted by SteveMongr
Then I would take the belt off and turn the pulleys by hand. Try to find one that is offering resistance, making noise, or feel like it is grinding or rough.
Ok I will do that tomorrow and report back. Thanks.
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Old 10-23-2014, 09:03 PM
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Originally Posted by WomanNeedsJeepExpertise
Guys I really don't think this is the tension on the belt but I could be wrong. The sound is becoming more prominent and consistent.
Could be a bad belt. If it is a Gates, get rid of it and get a Goodyear Gatorback.

All the adjusting and replacing in the world wouldn't stop my '92 from squealing until I got a Gatorback.

WNJE knows how to adjust the belt. We've been through all this before in earlier posts.
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Old 10-23-2014, 09:54 PM
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Originally Posted by Firestorm500
Could be a bad belt. If it is a Gates, get rid of it and get a Goodyear Gatorback. All the adjusting and replacing in the world wouldn't stop my '92 from squealing until I got a Gatorback. WNJE knows how to adjust the belt. We've been through all this before in earlier posts.
Even if I changed the belt last year? Was your squealing ongoing? Or just at start? I really want to be safe and I'm concerned that me or my son will get stranded somewhere. My son drives on the weekends and I want everything to be ok.

I've had a squeal from a loose belt before but this is a nagging squeal that gets progressively worse. It just sounds different. But you might be right, you definitely have been before! I still want to test the pulleys.
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Old 10-23-2014, 10:14 PM
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As a general rule, a bad bearing will give a grinding/roaring sound.
A belt will squeal/shreak.

Slipping belts can cause the pulleys to 'glaze' and make squealing worse. The pulley surfaces should be clean metal.
Belt Conditioner can also cause glazing and squealing on serpentine belts.
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Old 10-23-2014, 10:18 PM
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Originally Posted by SteveMongr
As a general rule, a bad bearing will give a grinding/roaring sound. A belt will squeal/shreak. Slipping belts can cause the pulleys to 'glaze' and make squealing worse. The pulley surfaces should be clean metal. Belt Conditioner can also cause glazing and squealing on serpentine belts.
There isn't any glaze on the belt but the idler pulley looks scraped. Were you able to look at the video I posted?

Should the idler pulley be rotating as the belt moves when the car is on?

Last edited by WomanNeedsJeepExpertise; 10-23-2014 at 10:23 PM.
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Old 10-23-2014, 11:26 PM
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Originally Posted by WomanNeedsJeepExpertise

Should the idler pulley be rotating as the belt moves when the car is on?
Is this a serious question?
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Old 10-24-2014, 01:47 AM
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Every question she asks is serious, even though the answer would seem obvious sometimes.

Yes, WNJE, my new Gates belt would start squeaking within 6 weeks to maybe 3 months of putting it on. I went through 3 or 4 of them before switching to Goodyear. That stopped it.

The belt tension had nothing to do with it. Went through replacing a lot of pulleys. Didn't help.
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Old 10-24-2014, 03:56 AM
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Originally Posted by SteveMongr
Tension is usually measured by deflection of a specific length of belt. On passenger side, longest exposed portion of belt between AC clutch and alternator, deflection by hand should be minimal, no more than 1/2' in either direction. 1" total. Belt should feel very tight.
Thanks for this
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Old 10-24-2014, 03:59 AM
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Originally Posted by odgreen89on35s
Is this a serious question?
It would have been much easier to say yes or no. Please don't criticize, I'm learning as I go. I barely see the pulley spinning that is why I asked.
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Old 10-24-2014, 04:00 AM
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Originally Posted by Firestorm500
Every question she asks is serious, even though the answer would seem obvious sometimes. Yes, WNJE, my new Gates belt would start squeaking within 6 weeks to maybe 3 months of putting it on. I went through 3 or 4 of them before switching to Goodyear. That stopped it. The belt tension had nothing to do with it. Went through replacing a lot of pulleys. Didn't help.
Did you watch the video link on page one Firestorm?
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Old 10-24-2014, 05:47 AM
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If you have 1" of play in each direction that is likely the problem!
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Old 10-24-2014, 06:16 AM
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Warm up engine util the noise starts. Remove the Serp belt and restart. Run for a few minutes. If the noise is still there it is either your distributor or flex plate. If it stops, you have isolated down to just a few components left not new in the front of the engine. The bracket that holds the fan clutch has a bearing, and of course the power steering pump. My bet is the distributor. Remove the cap and see if you have any side to side play in the shaft. Hope this helps
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Old 10-24-2014, 06:55 AM
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I guess I'm very late!
Easy! It's the tensioner belt bearing that you need to replace!
You take that one out and use a press to take the bearing out. $14!
You can buy the all assembly but it's about $40.
Very easy!
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Old 10-24-2014, 07:24 AM
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Old 10-24-2014, 08:04 AM
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Originally Posted by Kingfisher
If you have 1" of play in each direction that is likely the problem!
But it won't get any tighter, I'm afraid the bolt will snap again. Any tips?
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