KE4AVB wrote:BGS, I will have differ with on that as the 2008 pump that I just a couple weeks ago had no markings nor the new Oregon version that I installed. I also just look at the pump on the JD Z920M in the shop and there is no marking on it either.
try posting a close-up photo? I used to think there weren't any markings but then I put on a pair of 2.5x magnifiers headgear and spotted them... and depending on the mold they come out of, often very faint - just little triangular dots not much bigger than the point of a sharpened pencil - but anyhoo, as I mentioned, I quit worrying about those and just see which way the air can blow through and let the fuel flow follow the same direction...