frankie79
Well-Known Member
My newly rebuilt 440, broken in correctly (yes, zinc), just quit on my son while driving. No fuel in the bowls. Removed the stock replacement fuel pump and found the fuel pump rod cupped on one end and shows wear on the other. The length of the rod is down about .2 of and inch. The rod was purchased at Jegs stating it was hardened and USA made. I searched BBO and found others with the same issue with pump rods worn quickly. Motor sounded great the day before and showed very good oil pressure. I may drop the pan before restarting but am overthinking putting another mechanical pump back on and having possibly more metal in my motor if it fails. I took a pump rod out of my parts 440 that looks like an original Mopar part and measures spot on, it shows very slight wear (shine) on the ends. I've used electric pumps on my race car and am leaning toward putting one on this street cruiser. The chance of putting more metal in the engine and the chance of a "fool me twice" mistake are pushing me electric. Appreciate any input.