I have had a few cases where I had deemed the pump housing good enough, as the engine was pumping okay before service…..but then would not pump well at idle with a NEW impeller. The trouble is, the old housings and impellers wear together and fit like a glove, in some respects. A new impeller doesn’t fit into the old wear pattern as well. Changing the housings to new ones solved my problems astonishingly well. I guess this was me, peeing on the electric fence, right? By the way, what is going on with the bottom of your grommet? It looks torn up somehow, in the picture.
Long live American manufacturing!
