8070 sputtered and died

Was working dirt and turned on the end and about 1/2 way through the turn it coughed and sputtered a couple times and flat died. Has half tank of fuel. No lines leaking any where. New fuel filters and the tanks were just put back on empty and dry last week. Linkage on pump works on the outside. (M100) I bought this last winter and appears to have a rebuilt pump. Shiny black paint and a sticker. I got it from a jockey and he got it from an estate in MN so there's no history. Where to begin? Pull plate off pump drive and have a look?  Starter spins it but no fire or smoke. It's over 1/4 mile from my shop. I don't think you are allowed to pull one dead because of lack of lube in trans/rear end. PS if it matters. How does one trouble shoot this? TIA

I would start by disconnecting the fuel supply hose coming from the tank to the first fuel filter at the filter and be sure gravity will flow gushing fuel. That line originally went over the bellhousing, but many of us re-routed it under the bellhousing for  better and easier fuel flow. Start there to make sure fuel can get out of the tank. Possible plugged fuel fill cap vent ??  EDIT:   The hose that hangs on the outside of the injection pump above the throttle lever connects to the pumps hydraulic head. If you remove it or loosen it and crank the engine, fuel should gush from this hose. No fuel?? no run. No fuel, then start back at the first fuel filter for tank supply.  Got fuel?? something in the pump itself. This would be transfer pump fuel flow at 80-100 psi when running.

Edited by DrAllis - 03 Nov 2023 at 6:20am

sputtering and dying tells me it ran out of fuel supply like mentioned above. I'd think if head in pump seized, it would have just died immediately, or transfer pump shaft can break, no longer turning the transfer pump in rear of pump and governor assembly. Like Dr said, see where you have fuel flow and where you don't, that will tell the story.