I will have to check the lobe and see how worn it is. In the meantime, I'm going to weld the arm up a bit and grind it smooth and see what happens. My fuel pump looks quite a bit different. The arm is a solid piece, not a laminated one. I wonder if that is having some sort of impact as well. As I've said before, all these pieces ran easily just a few short weeks ago on the second engine. (And years ago on the original engine that we are now trying to get going again.) Hard to believe that a cam lobe can wear down just by sitting, or that the fuel arm can wear down so much in just a few miles. But I suppose that the arm/lobe must have been just at the point of failure anyway, and it's just my luck to have it all happen now. (Isn't that the way it always is?) Thanks!
