Camshaft Fuel Pump Lobe Flat?
I went back to it today, after letting the battery charge, and I am able to pull fuel from either tank, at the end of the line before it attaches to the chrome fuel line to the carb, with 2-3 pumps of a MightyVac hand pump. The guage also reads a little over 1 psi when pumping it.
I pulled the pump again, and put my finger on the pump rod while myh son turned over the engine, and I was mistaken earlier when I said it moved 1-1.5 inches. I only moves 1/2" or less. I looked up the pump rod hole with a mirror, and the cam lobe looks smooth, no gouges, etc. all the way around.
Is it possible the cam lobe for the fuel pump has gone almost flat? The problem has progressively gotten worse to where it will not pull fuel at all anymore, and that is the only thing left. The pump rod measures exactly 5.75", no wear on it at all.
Again, is it possible the cam lobe for the fuel pump has gone almost flat?