Onan Fuel Pump
I have a 2007 Onan Marquis Gold 5500 Generator carb type in my toy hauler. I replace the fuel pump often (less than 100 hrs), about a 25' line to the tank. On the pump (cummings # A029F887) it sates to replace with low pressure only. I read that pressure is between 3-5 psi on the internet, it is not listed in the service manual. It doesn't take much for this to be inoperative. During test I had no filter on and it pumped, but when I put the filter on there is not enough psi to pull fuel past the filter. When I R&R the pump it works fine. Perhaps junk in the gas.
Getting tired of replacing it, $110, anyone know of a more reliable pump? And where to order?