Check the Lean Mixture valve on the bottom of the float bowl. If the valve base was pressed in slanted, it might cause wear on the rotating valve shaft. (While in there make sure the valve base is well secured to the bowl, this caused a very interesting end of a flight for me once). This is only metal on metal area I can think of other than the accelerator pump plunger.
Is there anything inside a fuel pump that could cause metal?
built a few RVs, rebuilt a few more, hot rodded more, & maintained/updated a big bunch more
Last edited by Ralph Inkster : 07-26-2021 at 10:26 AM.