Originally Posted by
RED DOG
Not posting this to be critical of the Karmen 62mm supercharger pulley but thought those who have one might want to check it. Mine grenaded on me yesterday and the chunk of metal flew up and damaged my hood. I had less than 300 miles on the pulley . . .
I have it's twin. Happened to me 6 months ago. Since I got mine directly from the manufacturing guy, he quickly sent me a replacement without any issues. I only put it back on 3 days ago and therefore don't have any valid feedback yet. It is hard to check for this kind of failure. This is not a rivets or a spring issue. Other than a manufacturing defect, my only suspicion is improper gap of the SC pulley itself. The gap should be 0.25mm-0.3mm. And even then, it should not fail like this.