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Do stock pullies go bad?

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Old Oct 30, 2009 | 07:54 AM
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Default Do stock pullies go bad?

I have a bad vibration that is starting on my motor. I have a stocker, but it is keyed. Im also throwing the belt every now and then. ideas?
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Old Oct 30, 2009 | 10:23 AM
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The bearings can go bad in the pullies and cause a god awful vibration.
The pullies can get grooves wore in them and cause the belt to throw off.
I have seen both culprits happen.
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Old Oct 30, 2009 | 10:29 AM
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Do you see any pullies wobbling and or is the crank pulley wobbling?
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Old Oct 30, 2009 | 02:20 PM
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If you cant see them wobbling, stick a long screwdriver or metal rod and press it again the pulley bolt while the car is at idle. then stick the handle of the screwdriver to your ear. You will know immediately if the bearings are shot..
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Old Oct 30, 2009 | 02:49 PM
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there is bearings in a crank pulley? what?

or do you mean crank bearings? The motor is brand new...about 6000 miles on, so I highly doubt its crank bearings.

the vibrations are occuring at 1700 and 3500 rpm. sometimes its really bad, and sometimes its jsut enough to make my OCD kick in
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Old Oct 30, 2009 | 03:53 PM
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I just saw pullies not crank pulley sorry.
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Old Oct 30, 2009 | 05:10 PM
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Does the vibration change with RPM or speed? Check to make sure the bolt is tight and the pulley isn't trying to walk off. Typically pulley's don't go bad but I guess anything is possible.
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Old Oct 30, 2009 | 07:36 PM
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Originally Posted by VGLNTE1
there is bearings in a crank pulley? what?

or do you mean crank bearings? The motor is brand new...about 6000 miles on, so I highly doubt its crank bearings.

the vibrations are occuring at 1700 and 3500 rpm. sometimes its really bad, and sometimes its jsut enough to make my OCD kick in

There is no bearing for the crank pulley, it is pressed onto the crank and secured with a crank bolt. However the pulley is a two part pulley with a rubber like material between the two parts. If that **** rots out that outer part can develop a nasty wobble a cause vibration.
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