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 New pulley not spinning so well

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billfrank85
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PostSubject: New pulley not spinning so well   Mon Sep 15, 2014 10:30 pm

From another thread:


Quote :
So to be clear:

   1) I'll need three of the smooth Dayco 89007, true?
   2) I'll need one of the ribbed Gates 38009, true?

   ...that's it, correct?


Current problem:

I just replaced these 4 pullies on my 95 SC'd. The three Dayco pullies worked and fit fine. However, the plastic gates pulley (it is the one on the inside of the dual pulley stack...i.e. it's the supercharger idler) after installation, was not nearly as "free spinning" as the other three or even as the one I took off. I could spin it just fine on my finger before installation. Anyway, I uninstalled and reinstalled the pulleys a few different times to see if maybe something was hanging up. There was a spacer that went between the two pullies that was installed properly so I'm not sure what the problem is. With everything connected, I can move the pulley by hand but it definitely doesn't spin on its own. There seems to be a slight amount of drag. I put everything together and put a small white mark on the outside to see if it would spin with the engine on, and it did just fine. And no noise at all (that was the one causing my pulley squeal)...should I be concerned? What am I doing wrong? And it wasn't torqued down very much either.
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billfrank85
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PostSubject: Re: New pulley not spinning so well   Fri Sep 19, 2014 5:51 pm

Okay, my car wasn't squealing at all for about 30ish miles or so but now the squealing is back even with all of those pullies being brand new. Argghhhh.
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albertj
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PostSubject: Re: New pulley not spinning so well   Fri Sep 19, 2014 11:17 pm

alternator?
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billfrank85
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PostSubject: Re: New pulley not spinning so well   Fri Sep 19, 2014 11:20 pm

Brand new, sounded fine when spun without belt.
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al_roethlisberger
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PostSubject: Re: New pulley not spinning so well   Sat Sep 20, 2014 9:57 am


Just a note on the pulleys, some of them don't really free spin that easily depending on the bearing construction. If I recall, the steel Dayco and plastic Gates both dragged a little when spun by hand between my fingers. But that's normal.

Al
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KnottyEagle
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PostSubject: Re: New pulley not spinning so well   Sat Sep 20, 2014 3:46 pm

All of my S/C pullies except the motor mount one spin freely. They're tightened down quite a bit too.
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96_Juggernaut
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PostSubject: Re: New pulley not spinning so well   Sat Sep 20, 2014 4:41 pm

Its normal for some new bearings to be slightly tight depending on how they are packed at the factory. They tend to free up over time. I would just keep my eye on it and not worry to much.
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Abaddon
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PostSubject: Re: New pulley not spinning so well   Sat Sep 20, 2014 11:11 pm

As for the belt squeal....check to make sure you aren't a rib off around the Crank pulley. The belt will fit right around the outside edge, and you'd never know it until it starts squealing.
Also, if you can, pull over next time it starts squealing and spray water on the belt. If the noise goes away (even temporarily), it's the belt itself that's probably causing it.

Just a couple things to easily check....
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billfrank85
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PostSubject: Re: New pulley not spinning so well   Sun Sep 21, 2014 12:35 am

I have checked and double checked...belts are both on and aligned properly AND they are both brand new Gatorback belts.
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billfrank85
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PostSubject: Re: New pulley not spinning so well   Sun Sep 21, 2014 11:42 am

My car has been sitting for about a day, I started it and drove it a little bit ago. I did not hear a squeak until the car had warmed up a bit more, maybe after about 10-15 miles of driving.
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Abaddon
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PostSubject: Re: New pulley not spinning so well   Sun Sep 21, 2014 1:39 pm

Water Pump bearing might be failing.

Did you try my water trick yet?
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Jack the R
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PostSubject: Re: New pulley not spinning so well   Thu Jun 16, 2016 9:55 pm

My forwardmost new pulley has started ticking and wobbling with only a few thousand on it. Sure didn't last long!
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