[Als48]

Craig, Is there any way to tell if your distributor cap is seating properly? I had a cap once that failed to seat correctly and it caused the exact problem you are seeing. It seemed to be cocked slightly when attached, causing the rotor to not fire two of the cylinders due to an enlarged gap at some of the inner terminals. That would also cause the rotor to be too close to some of the other terminals, which might cause the rotor to make contact and loosen the brass tip, as you have seen. Possible?

Al Hook