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Recent content by TonySoprano

  1. TonySoprano

    Fasteners in shear - automotive application

    Hi Desertfox: One of my problems is the supercharger supplier doesn't believe there is a problem, so I'm not sure what information he'll provide, if any. He attributes the few problems encountered as being caused by incorrect spacing between the crankshaft pulley and supercharger drive-pulley...
  2. TonySoprano

    Fasteners in shear - automotive application

    Desertfox: Thanks for your calcs and for taking the time to give your thoughts on this matter. My take away from all of this is that it makes sense to address this issue now, rather than after I shear all four bolts. Perhaps it would never have been a problem, but I'd rather do it now than...
  3. TonySoprano

    Fasteners in shear - automotive application

    Hi Desertfox: Yes, you're right. The 4mm diameter pin comes pressed into that crank boss from the factory, not the supercharger supplier. I can see where I wasn't clear about that. As mentioned earlier, the pin is sufficiently long enough that it protrudes all the way through the crankshaft...
  4. TonySoprano

    Fasteners in shear - automotive application

    No, I haven't directly asked what the function of the pin is. I'm just nearing the completion of my installation and I ran across a thread where an existing customer sheared the four 6mm drive-pulley bolts. His fastener failure prompted a bunch of inquires from other customers who are thinking...
  5. TonySoprano

    Fasteners in shear - automotive application

    Hi desertfox, thanks for you input. The supercharger supplier doesn't think it to be an issue. Another customer sheared the four bolts and drift pin but the supplier attributed the failure to an incorrect spacer width (too thin) between the crankshaft pulley and supercharger drive-pulley. This...
  6. TonySoprano

    Fasteners in shear - automotive application

    I'm not an engineer, as will be quite evident when I pose my question :-). I'm sure this forum actually contains my answer but my lack of an engineering background prevents me from interpreting it properly. All that said, I'll plow forward. I'm attaching a drive-pulley, for a belt driven...

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