TwinTurbo.NET: Nissan 300ZX forum - How tight is tight?
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Subject How tight is tight?
     
Posted by Zjustignoreme on February 15, 2010 at 4:20 PM
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In Reply To ASP/Unortho. UD Pulley cont. Causes Belt slip w altern. load posted by Quick_Z on February 15, 2010 at 04:07 PM
     
Message Tightening the belt only helps for a while, then the same thing again.
In my experience, I have found that these belts, especially the alt belt has to be tighter than I would have thought. If you can push the belt with your fingers and get any deflection, the belt is still too loose. Unlike a v-belt these ribbed belts have to be butt tight. When tight, pushing on the belt with your finger should feel like a solid surface. No deflection. If it is sqeeling, it is too loose. You could have the smooth surface sand blasted also, that might help. Slipping causes a smoother surface due to polishing by the belt. Hope this helps.

     
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