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harsh vibration above 4500rpms AFTER yoohoo belt, What could it be?

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Old 10-07-07, 07:53 PM
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harsh vibration above 4500rpms AFTER yoohoo belt, What could it be?

As the title says, i just finished putting in a YooHoo belt on my 10th AE, and now it vibrates badly OVER 4500rpms or so. Is it just the looseness in the belt flopping around? Thanks
Old 10-08-07, 01:47 AM
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I doubt it. The extra tention on the front pulley might have spun the bearing in the front stat gear. The yahoo belt is not a good idea because of all the extra stress it puts on the very front of the pulley...
Old 10-08-07, 02:25 AM
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IMO it's a nasty little hack that is very likely to damage bearings. Do it right and get a dual-belt pulley.

In the mean time cut it off and see if the vibration goes away.
Old 01-24-09, 11:06 PM
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Does the yoohoo belt really put much more stress on the main pulley than running 2 accesories?
I'm running the pineapple alt relocation kit and I just bought a yoohoo belt as a safety measure but i haven't installed it yet.
How many miles were on these engines when they threw the bearings?
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